技术领域technical field
本发明涉及飞轮电池（也称飞轮储能装置）领域，尤其是一种用于电动汽车的磁悬浮飞轮电池。The invention relates to the field of flywheel batteries (also called flywheel energy storage devices), in particular to a magnetic levitation flywheel battery for electric vehicles.
背景技术Background technique
磁悬浮飞轮电池是一种高效、清洁、适合移动、以储存机械能代替储存电能的二次放电装置。它利用不接触的旋转飞轮储存能量，具有高比功率和比能量、充电快、高转速、寿命长以及环境友好等优点，广泛应用在交通运输、航空航天、电力能源等领域。The maglev flywheel battery is a high-efficiency, clean, mobile secondary discharge device that stores mechanical energy instead of storing electrical energy. It uses a non-contact rotating flywheel to store energy. It has the advantages of high specific power and specific energy, fast charging, high speed, long life and environmental friendliness. It is widely used in transportation, aerospace, electric energy and other fields.
磁悬浮飞轮电池的工作原理为：磁悬浮飞轮电池利用电力电子转换装置从外部输入电能驱动电动机旋转，电动机带动飞轮转子旋转，飞轮储存动能（机械能），当外部负载需要能量时，用飞轮带动发电机旋转，将动能转化为电能，以满足不同的需求。磁悬浮飞轮电池的拓扑结构主要由真空室、飞轮转子、电动机／发电机、磁轴承及保护轴承等组成。飞轮电池系统一般放置在高真空的密封机壳内，虽然通过提高真空度可以降低风损，但是稀薄的气体环境使系统散热功能减弱，导致转子的温度极易升高。另外，飞轮电池的待机损耗高（自放电率高），如停止充电，飞轮电池储存的能量在几到几十个小时内会自行耗尽。飞轮电池大部分时间工作在高速“待机”状态，因此飞轮电池的支承与传动系统应兼具低损耗、高可靠性的特点。再者，对于车用飞轮电池，汽车不同行驶状态及所行驶的道路状况均会导致陀螺效应的产生，所以轴承除了承受飞轮转子的自重外，还得承受陀螺力。尤其随着路况复杂度的增加导致陀螺效应更加明显，使得飞轮转子系统极易失稳。因此电动汽车用磁悬浮飞轮电池系统应兼具散热好、低损耗、高可靠性的特点。The working principle of the maglev flywheel battery is: the maglev flywheel battery uses the power electronic conversion device to input electric energy from the outside to drive the motor to rotate, the motor drives the flywheel rotor to rotate, and the flywheel stores kinetic energy (mechanical energy). When the external load needs energy, the flywheel drives the generator to rotate , to convert kinetic energy into electrical energy to meet different needs. The topology of a maglev flywheel battery is mainly composed of a vacuum chamber, a flywheel rotor, a motor/generator, a magnetic bearing, and a protective bearing. The flywheel battery system is generally placed in a high-vacuum sealed casing. Although the wind loss can be reduced by increasing the vacuum, the thin gas environment weakens the heat dissipation function of the system, causing the temperature of the rotor to rise easily. In addition, the flywheel battery has a high standby loss (high self-discharge rate). If charging is stopped, the energy stored in the flywheel battery will be exhausted within a few to dozens of hours. The flywheel battery works in a high-speed "standby" state most of the time, so the support and transmission system of the flywheel battery should have the characteristics of low loss and high reliability. Furthermore, for the flywheel battery used in vehicles, different driving conditions and road conditions of the vehicle will lead to the gyroscopic effect, so the bearing must bear the gyroscopic force in addition to the self-weight of the flywheel rotor. Especially as the complexity of the road conditions increases, the gyro effect becomes more obvious, which makes the flywheel rotor system easily unstable. Therefore, the maglev flywheel battery system for electric vehicles should have the characteristics of good heat dissipation, low loss, and high reliability.
现有技术的飞轮电池拓扑结构通常采用主动/被动/混合磁轴承支承立式主轴，再配以径向气隙结构形式电机来实现飞轮转子的悬浮支承与传动，因此现有技术的悬浮支承方式和电机的选择方式将飞轮电池的整体拓扑方式组成为有轴树状结构，陀螺效应不可避免。而且随着能源紧缺，路况复杂程度的增加导致车载飞轮电池的陀螺效应更加明显，使得飞轮转子极易失稳。除此之外，采用传统磁悬浮支承方式（主动/被动/混合磁轴承）虽然能够提供飞轮电池稳定运行的悬浮支承力，但是分别存在支承损耗高、承载力不足、体积大等缺点，而且采用此类飞轮电池拓扑结构，散热性能一直没有得到改善。另外，现有技术的飞轮电池所采用的电机多采用传统的径向气隙结构形式，同时为了减小磁路的磁阻，选用高磁导率的硅钢片叠压制成铁心，而铁心的存在又导致了电机体积大、重量大、损耗大、振动噪声大等问题，进而导致飞轮电池待机损耗大。因此，如何改进飞轮电池的整体拓扑结构，即设计新型悬浮支承拓扑结构与电机结构，用来改善飞轮电池陀螺效应、散热差和待机损耗大等是目前电动汽车用磁悬浮飞轮电池领域亟待解决的问题。The flywheel battery topology of the prior art usually adopts active/passive/hybrid magnetic bearings to support the vertical main shaft, and a motor with a radial air gap structure is used to realize the suspension support and transmission of the flywheel rotor. Therefore, the suspension support method of the prior art The overall topology of the flywheel battery is composed of a tree structure with axes and the selection of the motor, and the gyroscopic effect is inevitable. Moreover, with the shortage of energy and the increase in the complexity of road conditions, the gyroscopic effect of the on-board flywheel battery is more obvious, making the flywheel rotor extremely prone to instability. In addition, although the traditional magnetic suspension support method (active/passive/hybrid magnetic bearing) can provide the suspension support force for the stable operation of the flywheel battery, it has disadvantages such as high support loss, insufficient bearing capacity, and large volume. Flywheel-like battery topology, the heat dissipation performance has not been improved. In addition, the motors used in flywheel batteries in the prior art mostly adopt the traditional radial air gap structure. At the same time, in order to reduce the reluctance of the magnetic circuit, silicon steel sheets with high magnetic permeability are laminated to make the iron core, and the existence of the iron core This also leads to problems such as large volume, heavy weight, large loss, and large vibration and noise of the motor, which in turn leads to large standby loss of the flywheel battery. Therefore, how to improve the overall topology of the flywheel battery, that is, to design a new type of suspension support topology and motor structure, to improve the gyroscopic effect, poor heat dissipation and large standby loss of the flywheel battery is an urgent problem to be solved in the field of maglev flywheel batteries for electric vehicles. .
发明内容Contents of the invention
本发明的目的是为解决现有技术存在的上述问题而提供一种散热好、待机损耗小且可以有效抑制陀螺效应的夹心式电动汽车用磁悬浮飞轮电池，本发明同时还提供该飞轮电池的工作方法。The object of the present invention is to solve the above-mentioned problems existing in the prior art and to provide a sandwich-type magnetic levitation flywheel battery for electric vehicles that has good heat dissipation, low standby loss, and can effectively suppress the gyro effect. The present invention also provides the work of the flywheel battery method.
本发明夹心式电动汽车用磁悬浮飞轮电池解决其技术问题所采用的技术方案是：包括由顶部端盖、底部端盖和圆桶围成的真空室，真空室内部正中央是立式转轴，立式转轴的顶端外部同轴空套一个上部保护轴承、底端外部同轴空套一个下部保护轴承，立式转轴的轴向正中间同轴设置盘式飞轮电机，盘式飞轮电机的正上方和正下方各同轴装有一个结构相同、相对于盘式飞轮电机在轴向上下对称布置且空套在立式转轴外的盘形磁轴承，每个盘形磁轴承上绕有一组径向控制线圈；所述盘式飞轮电机由一个定子、两个转子和两组永磁体组成，定子位于盘式飞轮电机的正中间且同轴空套在立式转轴外，2个转子分别对称布置于定子的上下两侧且同轴固定套接在立式转轴上；2个转子在背对着定子的表面上均沿圆周方向贴有一组永磁体，一组永磁体是由四片相同的环形永磁体组成，四片环形永磁体均以N极、S极首尾相接方式排列成圆环状，The technical solution adopted by the magnetic levitation flywheel battery for sandwich type electric vehicle of the present invention to solve its technical problems is: comprising a vacuum chamber surrounded by a top end cover, a bottom end cover and a drum, the center of the vacuum chamber is a vertical rotating shaft, The top external coaxial empty sleeve of the vertical rotating shaft has an upper protective bearing, and the bottom external coaxial empty sleeve has a lower protective bearing. The axial center of the vertical rotating shaft is coaxially provided with a disc flywheel motor. Each of the lower coaxial shafts is equipped with a disk-shaped magnetic bearing with the same structure, which is symmetrically arranged up and down in the axial direction relative to the disk-type flywheel motor, and is sleeved outside the vertical shaft. Each disk-shaped magnetic bearing is wound with a set of radial control coils. ; The disc flywheel motor is composed of a stator, two rotors and two sets of permanent magnets, the stator is located in the middle of the disc flywheel motor and the coaxial empty sleeve is outside the vertical shaft, and the two rotors are symmetrically arranged on the sides of the stator respectively The upper and lower sides are coaxial and fixedly sleeved on the vertical shaft; the two rotors are affixed with a set of permanent magnets along the circumferential direction on the surface facing away from the stator, and a set of permanent magnets is composed of four identical ring-shaped permanent magnets , the four ring-shaped permanent magnets are arranged in a ring shape with N poles and S poles connected end to end.
盘式飞轮电机的外径为2R，R是盘式飞轮电机的半径，两个转子的外径、两个盘形磁轴承的外径以及永磁体所排列成的圆环状的外径均为2R，定子的外径小于2R，盘式飞轮电机的轴向高度与其半径R 的比例为1:10，两个盘形磁轴承之间的轴向最大高度和半径R的比是3:5。The outer diameter of the disc flywheel motor is 2R, R is the radius of the disc flywheel motor, the outer diameter of the two rotors, the outer diameter of the two disc-shaped magnetic bearings and the outer diameter of the circular ring formed by the permanent magnets are 2R, the outer diameter of the stator is smaller than 2R, the ratio of the axial height of the disc flywheel motor to its radius R is 1:10, and the ratio of the maximum axial height to the radius R between the two disc magnetic bearings is 3:5.
本发明夹心式电动汽车用磁悬浮飞轮电池的工作方法采用的技术方案是包括以下步骤：The technical scheme adopted by the working method of the magnetic levitation flywheel battery for the sandwich type electric vehicle of the present invention comprises the following steps:
A、由两个盘形磁轴承控制两个转子实现起浮，在两个转子起浮到中心位置后，外界电能驱动盘式飞轮电机加速旋转，盘式飞轮电机作电动机使用；A. The two rotors are controlled by two disk-shaped magnetic bearings to realize floating. After the two rotors float to the center position, the external electric energy drives the disk-type flywheel motor to accelerate the rotation, and the disk-type flywheel motor is used as a motor;
B、两个转子达到一定转速后由外部电力电子装置提供低压维持转速，两个盘形磁轴承控制两个转子稳定悬浮；B. After the two rotors reach a certain speed, the external power electronic device provides low voltage to maintain the speed, and the two disc-shaped magnetic bearings control the stable suspension of the two rotors;
C、控制两组径向控制线圈断电，两个转子施加转矩，通过电力电子装置向外设输出电能，两个转子转速不断下降，盘式飞轮电机作发电机使用。C. Control the two groups of radial control coils to cut off the power, apply torque to the two rotors, and output electric energy to the peripherals through the power electronic device, the speed of the two rotors keeps decreasing, and the disc flywheel motor is used as a generator.
本发明与现有技术相比的有益效果在于：The beneficial effect of the present invention compared with prior art is:
1、本发明将飞轮电池的整体拓扑结构设计为盘式结构，将盘式磁轴承与盘式飞轮电机均设计为扁平结构，明显缩短了立式轴的轴向长度，使得整个飞轮系统的拓扑结构呈现扁平状，这种轴向尺寸明显小于径向尺寸的扁盘形趋向于“无轴”的飞轮电池拓扑结构，避免了现有技术中的树状有轴拓扑结构的飞轮电池具有强烈的陀螺效应，有利于抑制磁悬浮飞轮转子的陀螺效应。1. In the present invention, the overall topology of the flywheel battery is designed as a disc structure, and both the disc magnetic bearing and the disc flywheel motor are designed as a flat structure, which significantly shortens the axial length of the vertical shaft, making the topology of the entire flywheel system The structure is flat, and the flat disc shape whose axial dimension is significantly smaller than the radial dimension tends to the "shaftless" flywheel battery topology, avoiding the tree-shaped flywheel battery topology with shafts in the prior art. The gyro effect is beneficial to suppress the gyro effect of the rotor of the magnetic levitation flywheel.
2、由于飞轮电池在真空环境中散热速度较慢，因此热场的变化对系统工作稳定性影响较大，本发明所设计的夹心式飞轮电池结构具有大气隙，可使杂散损耗降低，节约能源，增加散热速度，降低绕组温升，提高效率。2. Since the heat dissipation speed of the flywheel battery is slow in a vacuum environment, the change of the thermal field has a great influence on the stability of the system. The structure of the sandwich flywheel battery designed in the present invention has a large air gap, which can reduce the stray loss and save Energy, increase heat dissipation speed, reduce winding temperature rise, and improve efficiency.
3、本发明将悬浮支承结构设计为上下两个盘式轴承组合而成的夹心式盘形磁轴承，且由此轴承结构及气隙所配备的盘式飞轮电机采用无铁心盘式永磁无刷直流电机，无机械换向器的损耗、励磁铜耗及基本铁耗，因此空载损耗也可大大减小，大大降低了传动系统的能量损耗，特别是飞轮电池在待机状态下的能量损耗。3. In the present invention, the suspension support structure is designed as a sandwich-type disc-shaped magnetic bearing composed of upper and lower disc-type bearings, and the disc-type flywheel motor equipped with this bearing structure and air gap adopts a coreless disc-type permanent magnet without Brush DC motor, without the loss of mechanical commutator, excitation copper loss and basic iron loss, so the no-load loss can also be greatly reduced, which greatly reduces the energy loss of the transmission system, especially the energy loss of the flywheel battery in the standby state .
4、本发明用一套控制线圈形成极对数为1的旋转磁场（通三相交流电产生的旋转磁场），与带有永磁体产生的极对数为2的旋转磁场（机械旋转磁场）相互作用，只用一套绕组即可实现飞轮电池系统的五自由度悬浮支承（径向二自由度的主动控制，其余三自由度控制均由于本发明的特殊结构实现了稳定被动控制），大大降低了支承系统的能量损耗，特别是飞轮电池在待机状态下的能量损耗，提高了飞轮电池的储能效率，并且保证了车载飞轮电池在五自由度的稳定悬浮性，抑制了陀螺效应。4. The present invention uses a set of control coils to form a rotating magnetic field with a pole pair number of 1 (a rotating magnetic field generated by passing three-phase alternating current), which interacts with a rotating magnetic field with a pole pair number of 2 generated by a permanent magnet (mechanical rotating magnetic field). Function, only one set of windings can realize the five-degree-of-freedom suspension support of the flywheel battery system (active control of the radial two-degree-of-freedom, and the remaining three-degree-of-freedom control are stable passive control due to the special structure of the present invention), greatly reducing It reduces the energy loss of the support system, especially the energy loss of the flywheel battery in the standby state, improves the energy storage efficiency of the flywheel battery, and ensures the stable suspension of the vehicle flywheel battery in five degrees of freedom, suppressing the gyroscopic effect.
附图说明Description of drawings
图1为本发明夹心式电动汽车用磁悬浮飞轮电池的立体结构示意图；Fig. 1 is the schematic diagram of the three-dimensional structure of the magnetic levitation flywheel battery for the sandwich type electric vehicle of the present invention;
图2为图1的轴向剖视图；Fig. 2 is the axial sectional view of Fig. 1;
图3为图1中上部和下部盘形磁轴承的结构分解图；Fig. 3 is an exploded view of the structure of the upper and lower disk magnetic bearings in Fig. 1;
图4为图1所示磁悬浮飞轮电池的径向扭转二自由度悬浮原理图；Fig. 4 is a schematic diagram of the radial torsion two-degree-of-freedom levitation of the magnetic levitation flywheel battery shown in Fig. 1;
图5为图1所示磁悬浮飞轮电池的轴向悬浮原理图；Fig. 5 is a schematic diagram of the axial suspension of the magnetic levitation flywheel battery shown in Fig. 1;
图6为图1所示磁悬浮飞轮电池的径向二自由度悬浮原理图。Fig. 6 is a schematic diagram of the radial two-degree-of-freedom levitation of the magnetic levitation flywheel battery shown in Fig. 1 .
图中：1.盘式飞轮电机；11.定子；121.上部转子；122.下部转子；131.上部永磁体；132.下部永磁体；21.上部气隙；22.下部气隙；31.上部盘形磁轴承；311、312、313.上部盘形磁轴承的凸型磁极；32.下部盘形磁轴承；321、322、323.下部盘形磁轴承的凸型磁极；41、42.控制线圈；411、412、413.上部径向控制线圈；421、422、423.下部径向控制线圈；5.立式转轴；61.上部保护轴承；62.下部保护轴承；7.真空室；71.顶部端盖；72.底部端盖；73.圆桶；81、82、83、84.连接件。In the figure: 1. Disc flywheel motor; 11. Stator; 121. Upper rotor; 122. Lower rotor; 131. Upper permanent magnet; 132. Lower permanent magnet; 21. Upper air gap; 22. Lower air gap; 31. Upper disc-shaped magnetic bearing; 311, 312, 313. Convex magnetic poles of the upper disc-shaped magnetic bearing; 32. Lower disc-shaped magnetic bearing; 321, 322, 323. Convex magnetic poles of the lower disc-shaped magnetic bearing; 41, 42. Control coil; 411, 412, 413. Upper radial control coil; 421, 422, 423. Lower radial control coil; 5. Vertical shaft; 61. Upper protective bearing; 62. Lower protective bearing; 7. Vacuum chamber; 71. Top end cap; 72. Bottom end cap; 73. Drum; 81, 82, 83, 84. Connectors.
具体实施方式detailed description
如图1和图2所示，本发明夹心式电动汽车用磁悬浮飞轮电池具有一个真空室7，真空室7是由顶部端盖71、底部端盖72和圆桶73围成的真空腔室，其中圆桶73的顶部中央和底部中央各是开口，顶部中央开口处用顶部端盖71密封固定，底部中央开口处用底部端盖72密封固定。在真空室7内部设有1个盘式飞轮电机1、1个立式转轴5、2个相同的盘形磁轴承31、32。As shown in Fig. 1 and Fig. 2, the magnetic levitation flywheel battery of the sandwich type electric vehicle of the present invention has a vacuum chamber 7, and the vacuum chamber 7 is a vacuum chamber surrounded by a top end cover 71, a bottom end cover 72 and a drum 73, Wherein the top center and the bottom center of drum 73 are respectively openings, and the top central opening is sealed and fixed with the top end cap 71, and the bottom central opening is sealed and fixed with the bottom end cap 72. Inside the vacuum chamber 7, a disc-type flywheel motor 1, a vertical rotating shaft 5, and two identical disc-shaped magnetic bearings 31, 32 are arranged.
真空室7内部正中央是立式转轴5，立式转轴5的中心轴与真空室7的中心轴重合，立式转轴5的顶端外部同轴空套一个上部保护轴承61，上部保护轴承61同时以连接件81固定在顶部端盖71的中间位置，上部保护轴承61属于径向-轴向辅助轴承，采用角接触球轴承，其与立式转轴5之间的轴向、径向气隙为0.25mm。立式转轴5的底端外部同轴空套一个下部保护轴承62，下部保护轴承62在底部端盖72的中间位置，下部保护轴承62同时以连接件82固定在底部端盖72上，该下部保护轴承62属于径向辅助轴承，采用深沟球轴承，与立式转轴5之间的径向气隙为0.25mm。The center of the inside of the vacuum chamber 7 is a vertical shaft 5, the central axis of the vertical shaft 5 coincides with the central axis of the vacuum chamber 7, and the top of the vertical shaft 5 is coaxial with an upper protective bearing 61, and the upper protective bearing 61 is at the same time The connecting piece 81 is fixed at the middle position of the top end cover 71, the upper protective bearing 61 belongs to the radial-axial auxiliary bearing, and an angular contact ball bearing is used, and the axial and radial air gaps between it and the vertical rotating shaft 5 are 0.25mm. The bottom outer coaxial empty sleeve of the vertical shaft 5 has a lower protective bearing 62, the lower protective bearing 62 is at the middle position of the bottom end cover 72, and the lower protective bearing 62 is fixed on the bottom end cover 72 with a connecting piece 82 at the same time, the lower The protective bearing 62 belongs to the radial auxiliary bearing, adopts a deep groove ball bearing, and the radial air gap between the vertical rotating shaft 5 and the vertical shaft 5 is 0.25mm.
立式转轴5的轴向正中间同轴设置盘式飞轮电机1，在盘式飞轮电机1的正上方、正下方各同轴安装一个盘形磁轴承，分别是位于盘式飞轮电机1正上方的上部盘形磁轴承31和正下方的下部盘形磁轴承32，上部盘形磁轴承31位于上部保护轴承61的轴向正下方，下部盘形磁轴承32位于下部保护轴承62的正上方，上部盘形磁轴承31和下部盘形磁轴承32结构相同，并且相对于盘式飞轮电机1在轴向上下对称布置，以即镜面对称的方式位于盘式飞轮电机1的轴向两侧。上部盘形磁轴承31和下部盘形磁轴承32同轴空套在立式转轴5外，同时上部盘形磁轴承31和下部盘形磁轴承32分别以一个连接件83固定连接于圆桶73的侧壁上。连接件8、82、83可以采用焊接或螺纹连接方式连接。这样，立式转轴5 同时同轴空套于上部保护轴承61、下部保护轴承62、上部盘形磁轴承31和下部盘形磁轴承32中间。上部盘形磁轴承31与盘式飞轮电机1上表面之间形成轴向上部气隙21，下部盘形磁轴承32与盘式飞轮电机1下表面之间形成轴向下部气隙22，上部气隙21和下部气隙22均是2mm的圆柱状空气层，两个气隙既可作为轴向气隙又可作为径向气隙。A disc flywheel motor 1 is arranged coaxially in the middle of the axial direction of the vertical rotating shaft 5, and a disc-shaped magnetic bearing is coaxially installed directly above and directly below the disc flywheel motor 1, respectively located directly above the disc flywheel motor 1. The upper disc-shaped magnetic bearing 31 and the lower disc-shaped magnetic bearing 32 directly below, the upper disc-shaped magnetic bearing 31 is located directly below the upper protective bearing 61 in the axial direction, the lower disc-shaped magnetic bearing 32 is located directly above the lower protective bearing 62, the upper The disk-shaped magnetic bearing 31 and the lower disk-shaped magnetic bearing 32 have the same structure, and are symmetrically arranged up and down in the axial direction relative to the disk-type flywheel motor 1 , and are located on both axial sides of the disk-type flywheel motor 1 in a mirror-symmetric manner. The upper disk-shaped magnetic bearing 31 and the lower disk-shaped magnetic bearing 32 are coaxially sleeved outside the vertical shaft 5, and the upper disk-shaped magnetic bearing 31 and the lower disk-shaped magnetic bearing 32 are respectively fixedly connected to the drum 73 by a connecting piece 83 on the side wall. The connecting pieces 8, 82, 83 can be connected by welding or threaded connection. In this way, the vertical rotating shaft 5 is coaxially spaced between the upper protective bearing 61 , the lower protective bearing 62 , the upper disc-shaped magnetic bearing 31 and the lower disc-shaped magnetic bearing 32 . An axial upper air gap 21 is formed between the upper disc-shaped magnetic bearing 31 and the upper surface of the disc flywheel motor 1, and an axial lower air gap 22 is formed between the lower disc-shaped magnetic bearing 32 and the lower surface of the disc flywheel motor 1. Both the gap 21 and the lower air gap 22 are cylindrical air layers of 2 mm, and the two air gaps can be used as both axial and radial air gaps.
盘式飞轮电机1采用双转子无铁心盘式电机，由一个定子11、两个转子和两组永磁体组成。盘式飞轮电机1采用中间定子结构，定子11位于盘式飞轮电机1的正中间，同轴空套在立式转轴5外，定子11以连接件84固定连接圆桶73的侧壁。2个转子分别位于定子11上下两侧，分别是上部转子121与下部转子122，上部转子121与下部转子122相对于定子11以镜面对称方式轴向对称布置。上部转子121与下部转子122同轴固定套接在立式转轴5上，与立式转轴5共同旋转。转子既是电机转子也是飞轮电池的飞轮。The disc flywheel motor 1 adopts a double-rotor coreless disc motor, which consists of a stator 11, two rotors and two sets of permanent magnets. The disc flywheel motor 1 adopts an intermediate stator structure, and the stator 11 is located in the middle of the disc flywheel motor 1, coaxially spaced outside the vertical rotating shaft 5, and the stator 11 is fixedly connected to the side wall of the drum 73 with a connector 84. The two rotors are respectively located on the upper and lower sides of the stator 11 , namely an upper rotor 121 and a lower rotor 122 , and the upper rotor 121 and the lower rotor 122 are axially symmetrically arranged in a mirror-symmetric manner relative to the stator 11 . The upper rotor 121 and the lower rotor 122 are coaxially and fixedly sleeved on the vertical shaft 5 , and rotate together with the vertical shaft 5 . The rotor is both the rotor of the motor and the flywheel of the flywheel battery.
2个转子在背对着定子11的表面上，均沿沿圆周方向以贴片形式贴有四片相同的环形围绕的一组永磁体，一组永磁体是由四片相同的环形永磁体组成，上部转子121的上表面上贴着四片相同的环形的一组上部永磁体131，下部转子122的下表面上贴着四片相同的环形的一组上部永磁体132。上部转子121和下部转子122的每个转子上的一组四片永磁体131、132均以N极、S极首尾相接的交替方式排列成圆环状。On the surface of the two rotors facing away from the stator 11, a set of four identical ring-shaped permanent magnets are attached in the form of patches along the circumferential direction, and a set of permanent magnets is composed of four identical ring-shaped permanent magnets A set of four identical ring-shaped upper permanent magnets 131 is attached to the upper surface of the upper rotor 121 , and a set of four identical ring-shaped upper permanent magnets 132 is attached to the lower surface of the lower rotor 122 . A group of four permanent magnets 131 and 132 on each rotor of the upper rotor 121 and the lower rotor 122 are arranged in an annular shape in an alternating manner with N poles and S poles connected end to end.
盘式飞轮电机1的外径为2R，R是盘式飞轮电机1的半径。上部转子121、下部转子122的外径、上部盘形磁轴承31、下部盘形磁轴承32的外径以及上部永磁体131、下部永磁体132所排列成的圆环状的外径都相同，均为2R。定子11的外径2r略小于2R，r是定子11的半径。但圆桶73的内径大于2R。盘式飞轮电机1的轴向高度h与其半径R 的比例为1:10。上部盘形磁轴承31和下部盘形磁轴承32之间的轴向最大高度是H，即上部盘形磁轴承31的上表面和下部盘形磁轴承32的下表面的轴向之间的高度是H，高度H和半径R的比例是3:5。使得整个飞轮电池成扁平结构，满足其极惯性矩/赤道惯性矩在1.4～2之间，可有效抑制陀螺效应。The outer diameter of the disc flywheel motor 1 is 2R, and R is the radius of the disc flywheel motor 1 . The outer diameters of the upper rotor 121 and the lower rotor 122, the outer diameters of the upper disc-shaped magnetic bearing 31 and the lower disc-shaped magnetic bearing 32, and the outer diameters of the rings in which the upper permanent magnets 131 and the lower permanent magnets 132 are arranged are all the same, Both are 2R. The outer diameter 2r of the stator 11 is slightly smaller than 2R, where r is the radius of the stator 11 . However, the inner diameter of the drum 73 is greater than 2R. The ratio of the axial height h of the disc flywheel motor 1 to its radius R is 1:10. The axial maximum height between the upper disc-shaped magnetic bearing 31 and the lower disc-shaped magnetic bearing 32 is H, that is, the axial height between the upper surface of the upper disc-shaped magnetic bearing 31 and the lower surface of the lower disc-shaped magnetic bearing 32 is H, the ratio of height H to radius R is 3:5. The entire flywheel battery is made into a flat structure, and its polar moment of inertia/equatorial moment of inertia is between 1.4 and 2, which can effectively suppress the gyroscopic effect.
如图3所示，上部盘形磁轴承31与下部盘形磁轴承32的外形均是中空的圆柱状，且每个磁轴承具有沿圆周方向均匀分布的三个相同的凸型磁极，上部盘形磁轴承31具有凸型磁极311、312、313，下部盘形磁轴承32具有凸型磁极321、322、323。在上部盘形磁轴承31的下端，沿着圆周方向每隔120度从下至上进行开槽，所开槽的轴向高度为上部盘形磁轴承31轴向高度的五分之三，开槽个数为3，开槽弧度为90度，如此形成上部盘形磁轴承31的三个凸型磁极311、312、313。在下部盘形磁轴承32的上端，沿着圆周方向每隔120度从上至下进行开槽，开槽个数为3，所开槽的轴向高度为下部盘形磁轴承32的轴向高度的五分之三，开槽弧度为90度，因而形成沿圆周方向均匀分布的下部盘形磁轴承32的凸型磁极321、322、323。上部盘形磁轴承31的凸型磁极311、312、313与位于上部转子121上表面上的上部永磁体131之间是轴向上部气隙21，下部盘形磁轴承32的凸型磁极321、322、323与位于下部转子122下表面上的下部永磁体132之间是轴向下部气隙22。As shown in Figure 3, the profiles of the upper disk-shaped magnetic bearing 31 and the lower disk-shaped magnetic bearing 32 are hollow cylinders, and each magnetic bearing has three identical convex magnetic poles evenly distributed along the circumferential direction. The shape magnetic bearing 31 has convex magnetic poles 311 , 312 , 313 , and the lower disk magnetic bearing 32 has convex magnetic poles 321 , 322 , 323 . At the lower end of the upper disc-shaped magnetic bearing 31, slots are made from bottom to top at intervals of 120 degrees along the circumferential direction, and the axial height of the slots is three-fifths of the axial height of the upper disc-shaped magnetic bearing 31. The number is 3, and the radian of the slot is 90 degrees, thus forming three convex magnetic poles 311 , 312 , 313 of the upper disc-shaped magnetic bearing 31 . On the upper end of the lower disc-shaped magnetic bearing 32, slots are slotted from top to bottom at intervals of 120 degrees along the circumferential direction, the number of slots is 3, and the axial height of the slots is the axial height of the lower disc-shaped magnetic bearing 32. The height is three-fifths, and the radian of the slot is 90 degrees, thus forming the convex magnetic poles 321 , 322 , 323 of the lower disc-shaped magnetic bearing 32 evenly distributed along the circumferential direction. Between the convex magnetic poles 311, 312, 313 of the upper disc-shaped magnetic bearing 31 and the upper permanent magnet 131 on the upper surface of the upper rotor 121 is an axial upper air gap 21, and the convex magnetic poles 321, 321, Between 322 , 323 and the lower permanent magnet 132 on the lower surface of the lower rotor 122 is the axial lower air gap 22 .
在上部盘形磁轴承31的凸型磁极上绕有一组上部径向控制线圈，即是在凸型磁极311、312、313上分别对应缠绕上部径向控制线圈411、412、413这三个线圈。每个上部径向控制线圈411、412、413以轴向布置，且以星形连接的方式相连接，分别引出三个径向控制线圈的接线端子。在每个下部盘形磁轴承32的凸型磁极上也绕有一组下部径向控制线圈，即是在凸型磁极321、322、323上分别对应缠绕下部径向控制线圈421、422、423。。每个下部径向控制线圈421、422、423以轴向布置，且均以星形连接的方式相连接，分别引出三个径向控制线圈的接线端子。A group of upper radial control coils are wound on the convex magnetic poles of the upper disc-shaped magnetic bearing 31, that is, three upper radial control coils 411, 412, and 413 are respectively wound on the convex magnetic poles 311, 312, and 313. . Each of the upper radial control coils 411 , 412 , 413 is arranged axially and connected in a star connection manner, leading out three connection terminals of the radial control coils respectively. A group of lower radial control coils are also wound on the convex magnetic poles of each lower disk-shaped magnetic bearing 32 , that is, lower radial control coils 421 , 422 , 423 are respectively wound on the convex magnetic poles 321 , 322 , 323 . . Each of the lower radial control coils 421 , 422 , 423 is arranged in the axial direction and is connected in a star connection manner, leading out three connection terminals of the radial control coils respectively.
根据磁回路要求，磁路部件需导磁性能良好、磁滞低、并尽量降低涡流损耗与磁滞损耗，由此确定上部盘形磁轴承31和下部盘形磁轴承32均采用硅钢片叠压而成。上部永磁体131和下部永磁体132均采用高性能稀土材料钱铁硼。According to the requirements of the magnetic circuit, the magnetic circuit components must have good magnetic permeability, low hysteresis, and minimize eddy current loss and hysteresis loss. Therefore, it is determined that the upper disc-shaped magnetic bearing 31 and the lower disc-shaped magnetic bearing 32 are laminated with silicon steel sheets made. Both the upper permanent magnet 131 and the lower permanent magnet 132 are made of high-performance rare earth material, iron boron.
参见图1-3所示，本发明夹心式电动汽车用磁悬浮飞轮电池工作时有三种工作模式：分别是充电模式、保持模式和放电模式，具体如下：Referring to Fig. 1-3, there are three working modes when the magnetic levitation flywheel battery for the sandwich type electric vehicle of the present invention works: charging mode, holding mode and discharging mode respectively, specifically as follows:
充电模式：飞轮电池系统在充电时，先由上部盘形磁轴承31和下部盘形磁轴承32控制转子实现起浮，即给两组径向控制线圈311、312、313、411、412、413通电，实现径向二自由度主动控制，并配合上部永磁体131、下部永磁体132实现径向扭转二自由度和轴向的被动悬浮控制。然后，在上部转子121和下部转子122起浮到中心位置后，由外界电能驱动盘式飞轮电机1，盘式飞轮电机1带动上部转子121和下部转子122加速旋转，达到设计的最高转速，储存能量，此时的盘式飞轮电机1作电动机使用。Charging mode: when the flywheel battery system is being charged, the rotor is first controlled by the upper disk-shaped magnetic bearing 31 and the lower disk-shaped magnetic bearing 32 to realize floating, that is, two groups of radial control coils 311, 312, 313, 411, 412, 413 Power on to realize active control of two degrees of freedom in the radial direction, and cooperate with the upper permanent magnet 131 and the lower permanent magnet 132 to realize two degrees of freedom in radial torsion and passive suspension control in the axial direction. Then, after the upper rotor 121 and the lower rotor 122 have floated to the center position, the disc flywheel motor 1 is driven by external electric energy, and the disc flywheel motor 1 drives the upper rotor 121 and the lower rotor 122 to rotate at an accelerated speed, reaching the designed maximum speed, and storing energy, the disc flywheel motor 1 at this moment is used as a motor.
保持模式：此过程飞轮高速旋转，储存动能。上部转子121和下部转子122达到一定转速后转入低压模式，由外部电力电子装置提供低压，维持飞轮电池储能能量的待机损耗为最小水平，维持飞轮的转速。此时，给两组径向控制线圈311、312、313、411、412、413通电，由上部盘形磁轴承31和下部盘形磁轴承32控制上部转子121和下部转子122的稳定悬浮，并在保持最小待机损耗的基础上，实时抑制由车载工况引起的陀螺效应。Holding mode: In this process, the flywheel rotates at high speed and stores kinetic energy. After the upper rotor 121 and the lower rotor 122 reach a certain rotational speed, they enter the low-voltage mode, and the external power electronic device provides low voltage to keep the standby loss of the energy stored in the flywheel battery at a minimum level and maintain the rotational speed of the flywheel. At this time, two sets of radial control coils 311, 312, 313, 411, 412, 413 are energized, and the upper rotor 121 and the lower rotor 122 are controlled by the upper disk-shaped magnetic bearing 31 and the lower disk-shaped magnetic bearing 32. The stable suspension, and On the basis of keeping the minimum standby loss, the gyro effect caused by the vehicle operating conditions is suppressed in real time.
放电模式：此时两组径向控制线圈311、312、313、411、412、413断电（只在径向扭转二自由度和轴向方向上存在被动悬浮控制），上部转子121和下部转子122给盘式飞轮电机1施加转矩，通过电力电子装置向外设输出电能，上部转子121和下部转子122转速不断下降，此时的盘式飞轮电机1作发电机使用。Discharge mode: At this time, the two groups of radial control coils 311, 312, 313, 411, 412, 413 are powered off (there is only passive levitation control in the two degrees of freedom in radial torsion and in the axial direction), the upper rotor 121 and the lower rotor 122 applies torque to the disc flywheel motor 1, and outputs electric energy to peripheral devices through the power electronic device, and the speed of the upper rotor 121 and the lower rotor 122 decreases continuously, and the disc flywheel motor 1 is used as a generator at this time.
上部盘形磁轴承31和下部盘形磁轴承32的工作方法如下：The working methods of the upper disc magnetic bearing 31 and the lower disc magnetic bearing 32 are as follows:
径向扭转二自由度和转子轴向上的平移运动的被动控制实现：参见图4和图5，由于盘式飞轮电机1的轴向高度h远小于其半径R，根据磁阻力特性可知：上部转子121和下部转子122在轴向平移和径向扭转方向属被动悬浮控制，即转上部转子121和下部转子122一旦有倾斜或轴向位移，磁阻力都会作用使其回到平衡位置。即对于径向扭转二自由度方向的控制，磁阻力即为恢复扭转力Fr；对于轴向方向的控制，磁阻力即为轴向力Fz。Realization of passive control of two degrees of freedom in radial torsion and axial translation of the rotor: see Figure 4 and Figure 5, since the axial height h of the disc flywheel motor 1 is much smaller than its radius R, according to the magnetic resistance characteristics: The upper rotor 121 and the lower rotor 122 are passively suspended in the axial translation and radial torsion directions, that is, once the upper rotor 121 and the lower rotor 122 are tilted or axially displaced, the magnetic resistance will act to make them return to the equilibrium position. That is, for the control of two degrees of freedom in the radial torsion direction, the magnetic resistance is the restoring torsion forceFr ; for the control of the axial direction, the magnetic resistance is the axial force Fz .
径向二自由度主动控制的实现：当上部转子121和下部转子122在径向二自由度（x、y轴方向）受到干扰而偏离平衡位置时，对于互成120度的三相上部的径向控制线圈411、412、413，此时均通电会产生一个极对数为1的旋转磁场，即可看做等效电流A1产生的旋转磁场（通三相交流电产生的旋转磁场），进而形成磁通。同理，对于互成120度的下部的径向控制线圈421、422、423，此时通电产生一个极对数为1的旋转磁场（通三相交流电产生的旋转磁场），即可看做等效电流A2产生的旋转磁场，进而形成磁通。此时处于旋转状态且带有上部永磁体131和下部永磁体132的上部转子121和下部转子122也可看作是转子等效电流B1、B2产生的旋转磁场（机械旋转磁场），进而形成磁通。两种磁场相互作用，经过磁通叠加，进而在径向气隙中形成不等的磁通密度，导致径向悬浮力产生，使得上部转子121和下部转子122回到平衡位置。Realization of radial two-degree-of-freedom active control: When the upper rotor 121 and the lower rotor 122 are disturbed in the radial two-degree-of-freedom (x, y-axis direction) and deviate from the equilibrium position, for the three-phase upper radial To the control coils 411, 412, 413, at this time, all energization will generate a rotating magnetic field with a number of pole pairs of 1, which can be regarded as the rotating magnetic field generated by the equivalent current A1 (rotating magnetic field generated by passing three-phase alternating current), and then form flux. In the same way, for the lower radial control coils 421, 422, and 423 that are 120 degrees apart from each other, a rotating magnetic field with a number of pole pairs of 1 (rotating magnetic field generated by passing through three-phase alternating current) is generated by electrification at this time, which can be regarded as equal The rotating magnetic field generated by the effective current A2 forms a magnetic flux. At this time, the upper rotor 121 and the lower rotor 122, which are in the rotating state and have the upper permanent magnet 131 and the lower permanent magnet 132, can also be regarded as the rotating magnetic field (mechanical rotating magnetic field) generated by the rotor equivalent current B1, B2, and then form a magnetic field. Pass. The two magnetic fields interact with each other, and through superposition of magnetic flux, unequal magnetic flux density is formed in the radial air gap, resulting in radial levitation force, so that the upper rotor 121 and the lower rotor 122 return to the equilibrium position.
由于上部转子121和下部转子122在径向二自由度主动控制时，受力方向一致，因此仅以上部转子121受力分析为例。参见图6，以x轴负方向受到干扰为例：利用极对数为1的上部的径向控制线圈411、422、433产生2极磁通C1，贴于上部转子121上表面且与之同步的上部永磁体131产生4极磁通D1。此时，2极磁通C1与4极磁通D1经过相叠加，导致气隙q1处的磁通密度增加，气隙q2处的磁通密度减小，产生沿x轴正方向的径向悬浮力Fra，使得上部转子121和下部转子122回到平衡位置。Since the upper rotor 121 and the lower rotor 122 are subjected to the same direction of force when they are actively controlled with two degrees of freedom in the radial direction, only the force analysis of the upper rotor 121 is taken as an example. Referring to Fig. 6, taking interference in the negative direction of thex -axis as an example: use the upper radial control coils 411, 422, and 433 with a pole pair number of 1 to generate a 2-pole magnetic flux C1, which is attached to the upper surface of the upper rotor 121 and synchronized with it The upper permanent magnet 131 generates a 4-pole magnetic flux D1. At this time, the 2-pole magnetic flux C1 and the 4-pole magnetic flux D1 are superimposed, resulting in an increase in the magnetic flux density at the air gapq 1, and a decrease in the magnetic flux density at the air gapq 2, resulting in a radial direction along the positive direction of thex -axis The upward levitation forceFra makes the upper rotor 121 and the lower rotor 122 return to the equilibrium position.
根据以上所述，便可以实现本发明。对本领域的技术人员在不背离本发明的精神和保护范围的情况下做出的其它的变化和修改，仍包括在本发明保护范围之内。According to the above, the present invention can be realized. Other changes and modifications made by those skilled in the art without departing from the spirit and protection scope of the present invention are still included in the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611242637.7ACN106655605B (en) | 2016-12-29 | 2016-12-29 | Sandwich magnetic suspending flying wheel battery for electric vehicle and working method |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611242637.7ACN106655605B (en) | 2016-12-29 | 2016-12-29 | Sandwich magnetic suspending flying wheel battery for electric vehicle and working method |
| Publication Number | Publication Date |
|---|---|
| CN106655605Atrue CN106655605A (en) | 2017-05-10 |
| CN106655605B CN106655605B (en) | 2019-04-02 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611242637.7AActiveCN106655605B (en) | 2016-12-29 | 2016-12-29 | Sandwich magnetic suspending flying wheel battery for electric vehicle and working method |
| Country | Link |
|---|---|
| CN (1) | CN106655605B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092457A (en)* | 2017-11-22 | 2018-05-29 | 昆明理工大学 | A kind of intelligence flywheel lithium battery power and kinetic energy output or storage device |
| CN108110942A (en)* | 2018-01-04 | 2018-06-01 | 中国科学院电工研究所 | A kind of magnetic suspension mechanical energy storage system |
| CN108365698A (en)* | 2018-02-05 | 2018-08-03 | 江苏大学 | A kind of flying wheel battery of round trip flight wheel construction |
| CN108777525A (en)* | 2018-06-11 | 2018-11-09 | 江苏大学 | A kind of symmetrical permanent magnetism rotary shaft flying wheel battery |
| CN108808967A (en)* | 2018-06-28 | 2018-11-13 | 坎德拉（深圳）科技创新有限公司 | Fly wheel energy storage system and ball shape robot |
| CN108909524A (en)* | 2018-03-16 | 2018-11-30 | 江苏大学 | Magnetic suspending flying wheel battery zero-power decoupling controller for electric vehicle based on dynamic model |
| CN109038936A (en)* | 2018-09-29 | 2018-12-18 | 李平 | The dual-purpose concentric reversion free wheels electromechanical assembly of energy storage attitude control |
| CN109229424A (en)* | 2018-09-13 | 2019-01-18 | 清华大学 | A kind of multi-degree of freedom spherical electrodynamic levitation momenttum wheel |
| CN109301982A (en)* | 2018-10-22 | 2019-02-01 | 南京航空航天大学 | A double stator slotless iron core axial magnetic field permanent magnet motor and flywheel integrated device |
| CZ307872B6 (en)* | 2018-05-02 | 2019-07-10 | Ăšstav termomechaniky AV ÄŚR, v. v. i. | Flywheel energy storage system |
| CN110034630A (en)* | 2019-03-27 | 2019-07-19 | 微控物理储能研究开发（深圳）有限公司 | The start-up and shut-down control method and device of energy accumulation device for fly wheel based on magnetic suspension bearing |
| CN112117861A (en)* | 2020-09-08 | 2020-12-22 | 华中科技大学 | A flywheel energy storage motor |
| CN113078770A (en)* | 2021-04-29 | 2021-07-06 | 江苏科技大学 | Novel electrostatic induction flywheel battery |
| CN113131706A (en)* | 2021-04-27 | 2021-07-16 | 山东大学 | Disc type permanent magnet synchronous motor, energy storage flywheel and method |
| CN113489228A (en)* | 2021-07-01 | 2021-10-08 | 北京奇峰聚能科技有限公司 | Self-adaptive control method for axial position of magnetic suspension flywheel rotor |
| CN114204750A (en)* | 2022-01-11 | 2022-03-18 | 中磁动力设备(深圳)有限公司 | In-wheel motor and assembling method thereof |
| CN114221482A (en)* | 2022-01-10 | 2022-03-22 | 江苏大学 | A vehicle-mounted energy storage device with five degrees of freedom suspension support |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8269470B2 (en)* | 2008-07-03 | 2012-09-18 | Yen-Wei Hsu | Mechanical flow battery |
| CN202713053U (en)* | 2012-06-18 | 2013-01-30 | 江苏大学 | Flywheel battery supported and driven by split magnetic levitation switch reluctance motor |
| CN103047283A (en)* | 2012-12-28 | 2013-04-17 | 江苏大学 | Large-air gap five-freedom degree miniature magnetic bearing and working method |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8269470B2 (en)* | 2008-07-03 | 2012-09-18 | Yen-Wei Hsu | Mechanical flow battery |
| CN202713053U (en)* | 2012-06-18 | 2013-01-30 | 江苏大学 | Flywheel battery supported and driven by split magnetic levitation switch reluctance motor |
| CN103047283A (en)* | 2012-12-28 | 2013-04-17 | 江苏大学 | Large-air gap five-freedom degree miniature magnetic bearing and working method |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092457A (en)* | 2017-11-22 | 2018-05-29 | 昆明理工大学 | A kind of intelligence flywheel lithium battery power and kinetic energy output or storage device |
| CN108092457B (en)* | 2017-11-22 | 2019-07-16 | 昆明理工大学 | An intelligent flywheel lithium battery electric energy and kinetic energy output or storage device |
| CN108110942A (en)* | 2018-01-04 | 2018-06-01 | 中国科学院电工研究所 | A kind of magnetic suspension mechanical energy storage system |
| CN108110942B (en)* | 2018-01-04 | 2023-10-27 | 中国科学院电工研究所 | Magnetic suspension mechanical energy storage system |
| CN108365698A (en)* | 2018-02-05 | 2018-08-03 | 江苏大学 | A kind of flying wheel battery of round trip flight wheel construction |
| CN108909524A (en)* | 2018-03-16 | 2018-11-30 | 江苏大学 | Magnetic suspending flying wheel battery zero-power decoupling controller for electric vehicle based on dynamic model |
| CN108909524B (en)* | 2018-03-16 | 2021-06-22 | 江苏大学 | Magnetic suspension flywheel battery low-power-consumption decoupling controller for electric automobile based on dynamic model |
| CZ307872B6 (en)* | 2018-05-02 | 2019-07-10 | Ăšstav termomechaniky AV ÄŚR, v. v. i. | Flywheel energy storage system |
| CN108777525A (en)* | 2018-06-11 | 2018-11-09 | 江苏大学 | A kind of symmetrical permanent magnetism rotary shaft flying wheel battery |
| CN108808967A (en)* | 2018-06-28 | 2018-11-13 | 坎德拉（深圳）科技创新有限公司 | Fly wheel energy storage system and ball shape robot |
| CN109229424A (en)* | 2018-09-13 | 2019-01-18 | 清华大学 | A kind of multi-degree of freedom spherical electrodynamic levitation momenttum wheel |
| CN109038936A (en)* | 2018-09-29 | 2018-12-18 | 李平 | The dual-purpose concentric reversion free wheels electromechanical assembly of energy storage attitude control |
| CN109038936B (en)* | 2018-09-29 | 2023-10-17 | 李平 | Energy-storage attitude-control dual-purpose concentric reverse double flywheel electromechanical device |
| CN109301982A (en)* | 2018-10-22 | 2019-02-01 | 南京航空航天大学 | A double stator slotless iron core axial magnetic field permanent magnet motor and flywheel integrated device |
| CN109301982B (en)* | 2018-10-22 | 2024-02-13 | 南京航空航天大学 | Double-stator slotless core axial magnetic field permanent magnet motor and flywheel integrated device |
| CN110034630A (en)* | 2019-03-27 | 2019-07-19 | 微控物理储能研究开发（深圳）有限公司 | The start-up and shut-down control method and device of energy accumulation device for fly wheel based on magnetic suspension bearing |
| CN112117861A (en)* | 2020-09-08 | 2020-12-22 | 华中科技大学 | A flywheel energy storage motor |
| CN112117861B (en)* | 2020-09-08 | 2021-08-31 | 华中科技大学 | A flywheel energy storage motor |
| CN113131706A (en)* | 2021-04-27 | 2021-07-16 | 山东大学 | Disc type permanent magnet synchronous motor, energy storage flywheel and method |
| CN113078770A (en)* | 2021-04-29 | 2021-07-06 | 江苏科技大学 | Novel electrostatic induction flywheel battery |
| CN113489228A (en)* | 2021-07-01 | 2021-10-08 | 北京奇峰聚能科技有限公司 | Self-adaptive control method for axial position of magnetic suspension flywheel rotor |
| CN113489228B (en)* | 2021-07-01 | 2023-07-21 | 北京奇峰聚能科技有限公司 | Self-adaptive control method for axial position of magnetic suspension flywheel rotor |
| CN114221482A (en)* | 2022-01-10 | 2022-03-22 | 江苏大学 | A vehicle-mounted energy storage device with five degrees of freedom suspension support |
| CN114221482B (en)* | 2022-01-10 | 2023-09-26 | 江苏大学 | Five-degree-of-freedom suspension supported vehicle-mounted energy storage device |
| CN114204750A (en)* | 2022-01-11 | 2022-03-18 | 中磁动力设备(深圳)有限公司 | In-wheel motor and assembling method thereof |
| CN114204750B (en)* | 2022-01-11 | 2023-08-08 | 中磁动力设备(深圳)有限公司 | Hub motor and assembly method thereof |
| Publication number | Publication date |
|---|---|
| CN106655605B (en) | 2019-04-02 |
| Publication | Publication Date | Title |
|---|---|---|
| CN106655605A (en) | Magnetic suspension flywheel battery for sandwich-type electric car and work method thereof | |
| CN103929010B (en) | A kind of vertical hybrid magnetic suspension flywheel energy storage system | |
| CN109831056B (en) | Virtual shaft magnetic levitation flywheel energy storage device for electric vehicles | |
| CN103016525B (en) | Constant current biased radial-axial magnetic bearing | |
| CN105024479A (en) | Flywheel energy storing device | |
| CN106763184B (en) | A kind of sextupole radial-axial hybrid magnetic bearing | |
| CN108683292A (en) | A kind of vehicle-mounted magnetic-suspension flywheel energy-storage cell | |
| CN202713053U (en) | Flywheel battery supported and driven by split magnetic levitation switch reluctance motor | |
| CN113422467B (en) | Ultrathin vehicle-mounted magnetic suspension flywheel battery and working method thereof | |
| CN107070072B (en) | A kind of suspension of five-freedom degree magnetic energy accumulation device for fly wheel | |
| CN105186740B (en) | A kind of inertia energy storage system | |
| CN107387558A (en) | A kind of vehicle-mounted flying wheel battery alternating current-direct current Three Degree Of Freedom axial direction monolithic hybrid magnetic bearing | |
| CN102723804A (en) | Flywheel battery supported and driven by split magnetic levitation switch reluctance motor | |
| CN103047283B (en) | Large-air gap five-freedom degree miniature magnetic bearing and working method | |
| CN107070073A (en) | A kind of magnetic suspending flying wheel battery | |
| CN109378930A (en) | An external rotor vehicle-mounted flywheel energy storage device based on a new type of magnetic repulsion hybrid magnetic bearing | |
| CN103368326A (en) | Low-power-consumption magnetic suspension flywheel energy storing device | |
| CN110112860B (en) | Five-degree-of-freedom single-side suspension-supported disc ball flywheel integrated on-board energy storage device | |
| CN113037001B (en) | Flywheel energy storage device based on outer rotor bearingless permanent magnet synchronous motor | |
| CN103925293B (en) | A kind of thin slice rotor radial hybrid magnetic bearing | |
| CN202384963U (en) | A five-degree-of-freedom bearingless permanent magnet synchronous motor | |
| CN203481988U (en) | Magnetic suspension flywheel motor | |
| CN108547867B (en) | Axial self-loop three-degree-of-freedom spherical hybrid magnetic bearing | |
| CN106949142B (en) | A kind of radial-axial hybrid magnetic bearing of external rotor radial sextupole | |
| CN205754071U (en) | An integrated five-degree-of-freedom magnetic levitation direct-drive motor |
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right | Effective date of registration:20241230 Address after:212400 Xingxiangji Town, Baitu Town, Jurong City, Zhenjiang City, Jiangsu Province (formerly within the Xingxiang Government) Patentee after:JIANGSU XINGTU MODERN AGRICULTURE DEVELOPING Co.,Ltd. Country or region after:China Address before:Zhenjiang City, Jiangsu Province, 212013 Jingkou District Road No. 301 Patentee before:JIANGSU University Country or region before:China |