CN114759860A - Complementary type direct instantaneous torque control method for double-stator switched reluctance motor - Google Patents
Complementary type direct instantaneous torque control method for double-stator switched reluctance motorDownload PDFInfo
- Publication number
- CN114759860A CN114759860ACN202210487606.7ACN202210487606ACN114759860ACN 114759860 ACN114759860 ACN 114759860ACN 202210487606 ACN202210487606 ACN 202210487606ACN 114759860 ACN114759860 ACN 114759860A
- Authority
- CN
- China
- Prior art keywords
- torque
- stator
- phase
- motor
- iref
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/08—Reluctance motors
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/08—Reluctance motors
- H02P25/098—Arrangements for reducing torque ripple
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electric Motors In General (AREA)
- Synchronous Machinery (AREA)
Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本发明涉及一种开关磁阻电机及其互补型直接瞬时转矩控制方法，尤其适用于双定子开关磁阻电机驱动系统。The invention relates to a switched reluctance motor and a complementary direct instantaneous torque control method, which is especially suitable for a double-stator switched reluctance motor drive system.
背景技术Background technique
传统开关磁阻电机的低转矩密度、高转矩脉动一直是限制开关磁阻电机进一步发展的桎梏。因此降低转矩脉动、增加转矩密度一直是开关磁阻电机的前进方向。为了解决以上缺点，可以采用双定子开关磁阻电机并将其内外转子齿轴线错开一定机械角度，这样的结构设计能够有效降低转矩脉动。而且由于内外磁场解耦，所以当其工作时可以分为内定子励磁模式、外定子励磁模式和双定子励磁模式，也能够有效减小转矩脉动。The low torque density and high torque ripple of traditional switched reluctance motors have always been the shackles that limit the further development of switched reluctance motors. Therefore, reducing torque ripple and increasing torque density has always been the forward direction of switched reluctance motors. In order to solve the above shortcomings, a dual-stator switched reluctance motor can be used and the axes of the inner and outer rotor teeth are shifted by a certain mechanical angle. Such a structural design can effectively reduce the torque ripple. Moreover, due to the decoupling of the internal and external magnetic fields, it can be divided into the inner stator excitation mode, the outer stator excitation mode and the double stator excitation mode when it works, which can also effectively reduce the torque ripple.
目前传统的三电平开关磁阻电机直接瞬时转矩控制方法通过选择合适的导通角可以很好地实现相间转矩的平滑输出，但是此方法输出平滑转矩必须前后相邻相的开通区域有较大的重合。当换相重合区域较小时，后一相转矩没有建立，前一相转矩迅速下降，电机输出转矩无法达到给定值，出现电机总转矩波谷，造成转矩脉动。当换相重合区域较大时，前一相会产生制动转矩，后一相为了输出平滑转矩，会提高转矩输出抵消前一相产生的制动转矩，造成后一相的相电流峰值提高，增加电机损耗，降低效率。而且由于内外转子齿轴线错开一定机械角度的双定子开关磁阻电机结构的特殊性，需要设计新的直接瞬时转矩控制方法。At present, the traditional three-level switched reluctance motor direct instantaneous torque control method can well realize the smooth output of the interphase torque by selecting the appropriate conduction angle, but the output smooth torque of this method must be in the open area of the adjacent phase before and after There is a large overlap. When the commutation coincidence area is small, the torque of the latter phase is not established, the torque of the former phase drops rapidly, the output torque of the motor cannot reach the given value, and the total torque of the motor is trough, resulting in torque ripple. When the commutation coincidence area is large, the former phase will generate braking torque, and in order to output smooth torque, the latter phase will increase the torque output to offset the braking torque generated by the former phase, resulting in Higher current peaks increase motor losses and reduce efficiency. Moreover, due to the particularity of the structure of the double-stator switched reluctance motor in which the tooth axes of the inner and outer rotors are staggered by a certain mechanical angle, a new direct instantaneous torque control method needs to be designed.
发明内容SUMMARY OF THE INVENTION
针对上述技术中存在的问题，本发明提供了一种双定子开关磁阻电机互补型直接瞬时转矩控制方法。In view of the problems existing in the above technologies, the present invention provides a complementary direct instantaneous torque control method for a dual-stator switched reluctance motor.
为实现上述技术目的，本发明采用如下的技术方案予以实现：In order to realize the above-mentioned technical purpose, the present invention adopts the following technical scheme to realize:
1、一种双定子开关磁阻电机互补型直接瞬时转矩控制方法，所述双定子开关磁阻电机的中间转子采用双面凸极结构，内外转子齿共用同一转子轭架；内、外转子相邻齿两中心轴线之间的机械偏置角设为θ；进一步，所述的互补型直接瞬时转矩控制：1. A complementary direct instantaneous torque control method for a double-stator switched reluctance motor. The intermediate rotor of the double-stator switched reluctance motor adopts a double-sided salient pole structure, and the inner and outer rotor teeth share the same rotor yoke; The mechanical offset angle between the two central axes of adjacent teeth is set as θ; further, the complementary direct instantaneous torque control:
a.开关磁阻电机在每相导通角度(0,θoff)内包含一个转矩差阈值组，即阈值组(Tup,Tmid,Tdown)，其中θoff为关断角，Tdown<Tmid<0<Tup；转子位置0°为A相最小电感位置，转子位置22.5°为A相最大电感位置；a. The switched reluctance motor includes a torque difference threshold group in each phase conduction angle (0, θoff ), that is, a threshold group (Tup , Tmid , Tdown ), where θoff is the turn-off angle, Tdown <Tmid <0<Tup ; the rotor position of 0° is the minimum inductance position of phase A, and the rotor position of 22.5° is the maximum inductance position of phase A;
b.将功率变换器的三种开关状态(励磁状态、续流状态、退磁状态)分别表示为S1、S2和S3；b. Denote the three switching states (excitation state, freewheeling state, demagnetization state) of the power converter as S1 , S2 and S3 respectively;
c.互补型直接瞬时转矩控制状态切换规则如下：当满足条件Tset+Tdown≥Te时，执行动作S1；当满足条件Tset+Tmid>Te≥Tset+Tdown时，执行动作S2；当满足条件Te≥Tset+Tup时，执行动作S3；当满足条件Tset+Tup>Te≥Tset+Tmid时，状态保持；c. Complementary DTC state switching rules are as follows: when the condition Tset +Tdown ≥Te is satisfied, execute action S1 ; when the condition Tset +Tmid >Te ≥Tset +Tdown is satisfied , perform action S2 ; when the condition Te ≥ Tset +Tup is satisfied, perform action S3 ; when the condition Tset + Tup >Te ≥ Tset + Tmid is satisfied, the state remains;
d.具体的控制策略如下：d. The specific control strategy is as follows:
Toref＝Tset+Tiref-Tie(Tset-Tie>k|Tdown|) (1)Toref =Tset +Tiref -Tie (Tset -Tie >k|Tdown |) (1)
Tiref＝Tset+Toref-Toe(Tset-Toe>k|Tdown|) (2)Tiref =Tset +Toref -Toe (Tset -Toe >k|Tdown |) (2)
Toref＝Tset(Tset-Tie≤k|Tdown|) (3)Toref =Tset (Tset -Tie ≤k|Tdown |) (3)
Tiref＝Tset(Tset-Toe≤k|Tdown|) (4)Tiref =Tset (Tset -Toe ≤k|Tdown |) (4)
Tref＝Toref+Tiref (5)Tref =Toref +Tiref (5)
其中，Tset为内外定子给定的初始转矩，Tiref为内定子给定参考转矩，Toref为外定子给定参考转矩，Tref为电机总给定转矩为Tiref与Toref之和；k为调节系数，设定在1至2之间。Among them, Tset is the initial torque given by the inner and outer stators, Tiref is the given reference torque of the inner stator, Torref is the given reference torque of the outer stator, and Tref is the total given torque of the motor. Tiref and T The sum oforef ; k is the adjustment coefficient, which is set between 1 and 2.
2、进一步，互补型直接瞬时转矩控制方法的具体工作过程：2. Further, the specific working process of the complementary direct instantaneous torque control method:
(1)内定子A相在转子位置0°时开通；当转子位置处于7.5°时，开始进入外定子E、F换相区；外定子E相开始关断，此时F相刚开通，处于相电感最小区域，所以外定子总转矩开始下降，出现转矩波谷；当外定子给定转矩Tset与外定子实际总转矩Toe的转矩差满足条件Tset-Toe>k|Tdown|时，令内定子给定参考转矩Tiref＝Tset+Toref-Toe。此时内定子实际总转矩Tie能够快速跟随给定转矩Tiref，外定子参考转矩Toref＝Tset，所以电机实际总转矩Te＝Tiref+Toe＝2Tset；通过增加内定子给定参考转矩，提升电机总转矩，来弥补外定子给定转矩与实际转矩的差值，以此保持电机总输出转矩恒定在2Tset附近；此时电机转子正处于内定子A相开通区域，而且位于电感上升区，电机输出转矩更容易；在转子位置7.5°至F相转矩完全建立之前的这段角度内，A相有一个电流抬升的过程，此时A相输出转矩上升，弥补外定子下降的总转矩；(1) The inner stator phase A is turned on when the rotor position is 0°; when the rotor position is at 7.5°, it begins to enter the commutation area of the outer stator E and F; The phase inductance is the smallest region, so the total torque of the outer stator begins to decrease, and a torque trough occurs; when the torque difference between the given torque Tset of the outer stator and the actual total torque Toe of the outer stator satisfies the condition Tset -Toe >k When |Tdown |, let the inner stator give a reference torque Tiref =Tset +Toref -Toe . At this time, the actual total torque Tie of the inner stator can quickly follow the given torque Tiref , and the external stator reference torque Toref =Tset , so the actual total motor torque Te =Tiref +Toe =2Tset ; Increase the given reference torque of the inner stator and increase the total torque of the motor to make up for the difference between the given torque of the outer stator and the actual torque, so as to keep the total output torque of the motor constant around 2Tset ; at this time, the motor rotor is positive. In the inner stator A-phase open area, and in the inductance rising area, the motor output torque is easier; in the angle from the rotor position 7.5° to the angle before the F-phase torque is fully established, the A-phase has a current rising process, this When the A-phase output torque rises, it makes up for the total torque dropped by the outer stator;
(2)外定子F相在转子位置7.5°时开通；当转子位置处于15°时，开始进入内定子A、B换相区；内定子A相开始关断，此时B相刚开通，处于相电感最小区域，转矩无法迅速建立，所以内定子总转矩开始下降，出现转矩波谷；当内定子给定转矩Tset与内定子实际总转矩Tie的转矩差满足条件Tset-Tie>k|Tdown|时，令外定子给定参考转矩Toref＝Tset+Tiref-Tie；此时外定子实际总转矩Toe能够快速跟随给定转矩Toref，内定子参考转矩Tiref＝Tset，所以电机实际总转矩Te＝Toref+Tie＝2Tset；通过增加外定子给定参考转矩，提升电机总转矩，来弥补内定子给定转矩与实际转矩的差值，以此保持电机总输出转矩恒定在2Tset附近；此时电机转子正处于外定子F相开通区域，而且位于电感上升区，电机输出转矩更容易；在转子位置15°至F相转矩完全建立之前的这段角度内，F相有一个电流抬升的过程，此时F相输出转矩上升，弥补内定子下降的总转矩；(2) The F phase of the outer stator is turned on when the rotor position is 7.5°; when the rotor position is at 15°, it begins to enter the commutation area of the inner stator A and B; the inner stator phase A starts to be turned off, and the B phase is just turned on at this time. In the region with the smallest phase inductance, the torque cannot be established quickly, so the total torque of the inner stator begins to decrease, and a torque trough appears; when the torque difference between the given torque Tset of the inner stator and the actual total torque Tie of the inner stator satisfies the condition T Whenset -Tie >k|Tdown |, let the external stator reference torque Toref =Tset +Tiref -Tie ; at this time, the actual total torque Toe of the outer stator can quickly follow the given torque Toref , the internal stator reference torque Tiref =Tset , so the actual total motor torque Te =Toref +Tie =2Tset ; by increasing the external stator given reference torque, the total motor torque is increased to make up for the internal torque The difference between the sub-given torque and the actual torque, so as to keep the total output torque of the motor constant around 2Tset ; at this time, the motor rotor is in the open area of the outer stator F-phase, and in the inductance rise area, the motor output torque It is easier; in the period from the rotor position 15° to the angle before the F-phase torque is fully established, the F-phase has a current rising process, and the F-phase output torque rises at this time, making up for the total torque that the inner stator drops;
(3)其它各相间内外定子转矩互补的过程与上述类似。(3) The process of torque complementation between the inner and outer stators between other phases is similar to the above.
3、进一步，因为在各相导通角区间主要位于电感上升区域，所以在励磁阶段电机绕组会产生反电动势造成转矩上升速率小于退磁阶段的转矩下降速率；因此，在设计状态切换规则时，设计一个动作保持阶段作为功率变换器状态切换的缓冲区域。3. Further, because the conduction angle interval of each phase is mainly located in the inductance rise area, the motor winding will generate back electromotive force during the excitation phase, causing the torque rise rate to be lower than the torque fall rate of the demagnetization phase; therefore, when designing the state switching rule , an action holding phase is designed as a buffer area for the state switching of the power converter.
有益效果beneficial effect
本发明采用以上技术方案与现有技术相比，具有以下技术效果：Compared with the prior art, the present invention adopts the above technical scheme, and has the following technical effects:
相对于传统的开关磁阻电机直接瞬时转矩控制，互补型直接瞬时转矩控制仅采用一组阈值的设定，与其相对应的切换规则也作了改变，状态机运行速度更快。在设计状态切换规则时，设计一个动作保持阶段作为功率变换器状态切换的缓冲区域，提高了运行效率。内(外)定子相邻两相换相区域恰好位于外(内)定子其中一相导通区域内，且处于电感上升区域，刚好可以通过增大外(内)定子转矩来补偿内(外)定子换相时的转矩不足。通过此方法公式处理过后，能够很好地实现内外定子输出转矩之间的互补，实现双定子开关磁阻电机平滑转矩输出，最大限度的在平滑转矩的基础上输出电机最大功率。Compared with the traditional switched reluctance motor direct instantaneous torque control, the complementary direct instantaneous torque control only uses a set of threshold settings, and the corresponding switching rules are also changed, and the state machine runs faster. When designing the state switching rules, an action holding phase is designed as a buffer area for the state switching of the power converter, which improves the operation efficiency. The adjacent two-phase commutation area of the inner (outer) stator is located in the conduction area of one of the outer (inner) stator phases, and is in the inductance rising area, which can just be compensated by increasing the outer (inner) stator torque. ) Insufficient torque during stator commutation. After the formula is processed by this method, the complementarity between the output torques of the inner and outer stators can be well realized, the smooth torque output of the dual-stator switched reluctance motor can be realized, and the maximum motor power can be output on the basis of the smooth torque to the maximum extent.
附图说明Description of drawings
图1是本发明的内外转子齿错开一定角度的双定子开关磁阻电机示意图；1 is a schematic diagram of a double-stator switched reluctance motor with inner and outer rotor teeth staggered by a certain angle of the present invention;
图2是本发明的互补型直接瞬时转矩控制阈值组设定示意图；FIG. 2 is a schematic diagram of setting a complementary direct instantaneous torque control threshold group of the present invention;
图3是本发明的互补型直接瞬时转矩控制状态切换示意图；Fig. 3 is the state switching schematic diagram of the complementary direct instantaneous torque control of the present invention;
图4是本发明的互补型直接瞬时转矩控制转矩示意图；4 is a schematic diagram of the complementary direct instantaneous torque control torque of the present invention;
具体实施方式Detailed ways
下面详细描述本发明的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本发明，而不能解释为对本发明的限制。Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but not to be construed as a limitation of the present invention.
本技术领域技术人员可以理解的是，除非另外定义，这里使用的所有术语(包括技术术语和科学术语)具有与本发明所属领域中的普通技术人员的一般理解相同的意义。还应该理解的是，诸如通用字典中定义的那些术语应该被理解为具有与现有技术的上下文中的意义一致的意义，并且除非像这里一样定义，不会用理想化或过于正式的含义来解释。It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and, unless defined as herein, are not to be taken in an idealized or overly formal sense. explain.
下面结合附图中的实施例对本发明作进一步的描述：The present invention will be further described below in conjunction with the embodiments in the accompanying drawings:
如图1所示，针对一台内外转子齿错开一定角度的双定子开关磁阻电机，具体步骤如下：As shown in Figure 1, for a double-stator switched reluctance motor with the inner and outer rotor teeth staggered by a certain angle, the specific steps are as follows:
a.如图2所示，开关磁阻电机在每相导通角度(0,θoff)内包含一个转矩差阈值组，即阈值组(Tup,Tmid,Tdown)，其中θoff为关断角，Tdown<Tmid<0<Tup；转子位置0°为A相最小电感位置，转子位置22.5°为A相最大电感位置；a. As shown in Figure 2, the switched reluctance motor includes a torque difference threshold group within each phase conduction angle (0, θoff ), namely the threshold group (Tup , Tmid , Tdown ), where θoff is the turn-off angle, Tdown <Tmid <0 < Tup ; the rotor position of 0° is the minimum inductance position of phase A, and the rotor position of 22.5° is the maximum inductance position of phase A;
b.将功率变换器的三种开关状态(励磁状态、续流状态、退磁状态)分别表示为S1、S2和S3；b. Denote the three switching states (excitation state, freewheeling state, demagnetization state) of the power converter as S1 , S2 and S3 respectively;
c.如图3所示，互补型直接瞬时转矩控制状态切换规则如下：当满足条件Tset+Tdown≥Te时，执行动作S1；当满足条件Tset+Tmid>Te≥Tset+Tdown时，执行动作S2；当满足条件Te≥Tset+Tup时，执行动作S3；当满足条件Tset+Tup>Te≥Tset+Tmid时，状态保持；c. As shown in Figure 3, the state switching rule of the complementary direct instantaneous torque control is as follows: when the condition Tset +Tdown ≥Te is satisfied, the action S1 is executed; when the condition Tset +Tmid >Te ≥ When Tset +Tdown , execute action S2 ; when the condition Te ≥Tset +Tup is met, execute action S3 ; when the condition Tset +Tup >Te ≥Tset +Tmid is met, the state Keep;
d.具体的控制策略如下：d. The specific control strategy is as follows:
Toref＝Tset+Tiref-Tie(Tset-Tie>k|Tdown|) (1)Toref =Tset +Tiref -Tie (Tset -Tie >k|Tdown |) (1)
Tiref＝Tset+Toref-Toe(Tset-Toe>k|Tdown|) (2)Tiref =Tset +Toref -Toe (Tset -Toe >k|Tdown |) (2)
Toref＝Tset(Tset-Tie≤k|Tdown|) (3)Toref =Tset (Tset -Tie ≤k|Tdown |) (3)
Tiref＝Tset(Tset-Toe≤k|Tdown|) (4)Tiref =Tset (Tset -Toe ≤k|Tdown |) (4)
Tref＝Toref+Tiref (5)Tref =Toref +Tiref (5)
其中，Tset为内外定子给定的初始转矩，Tiref为内定子给定参考转矩，Toref为外定子给定参考转矩，Tref为电机总给定转矩为Tiref与Toref之和；k为调节系数，设定在1至2之间；内(外)定子相邻两相换相区域恰好位于外(内)定子其中一相导通区域内，且处于电感上升区域；刚好可以通过增大外(内)定子转矩来补偿内(外)定子换相时的转矩不足。Among them, Tset is the initial torque given by the inner and outer stators, Tiref is the given reference torque of the inner stator, Torref is the given reference torque of the outer stator, and Tref is the total given torque of the motor. Tiref and T The sum oforef ; k is the adjustment coefficient, set between 1 and 2; the adjacent two-phase commutation area of the inner (outer) stator is located in the conduction area of one of the outer (inner) stator phases, and is in the inductance rising area ; Just by increasing the torque of the outer (inner) stator to compensate for the insufficient torque when the inner (outer) stator is commutated.
(1)内定子A相在转子位置0°时开通；当转子位置处于7.5°时，开始进入外定子E、F换相区；外定子E相开始关断，此时F相刚开通，处于相电感最小区域，所以外定子总转矩开始下降，出现转矩波谷；当外定子给定转矩Tset与外定子实际总转矩Toe的转矩差满足条件Tset-Toe>k|Tdown|时，令内定子给定参考转矩Tiref＝Tset+Toref-Toe。此时内定子实际总转矩Tie能够快速跟随给定转矩Tiref，外定子参考转矩Toref＝Tset，所以电机实际总转矩Te＝Tiref+Toe＝2Tset；通过增加内定子给定参考转矩，提升电机总转矩，来弥补外定子给定转矩与实际转矩的差值，以此保持电机总输出转矩恒定在2Tset附近；此时电机转子正处于内定子A相开通区域，而且位于电感上升区，电机输出转矩更容易；在转子位置7.5°至F相转矩完全建立之前的这段角度内，A相有一个电流抬升的过程，此时A相输出转矩上升，弥补外定子下降的总转矩；(1) The inner stator phase A is turned on when the rotor position is 0°; when the rotor position is at 7.5°, it begins to enter the commutation area of the outer stator E and F; The phase inductance is the smallest region, so the total torque of the outer stator begins to decrease, and a torque trough occurs; when the torque difference between the given torque Tset of the outer stator and the actual total torque Toe of the outer stator satisfies the condition Tset -Toe >k When |Tdown |, let the inner stator give a reference torque Tiref =Tset +Toref -Toe . At this time, the actual total torque Tie of the inner stator can quickly follow the given torque Tiref , and the external stator reference torque Toref =Tset , so the actual total motor torque Te =Tiref +Toe =2Tset ; Increase the given reference torque of the inner stator and increase the total torque of the motor to make up for the difference between the given torque of the outer stator and the actual torque, so as to keep the total output torque of the motor constant around 2Tset ; at this time, the motor rotor is positive. In the inner stator A-phase open area, and in the inductance rising area, the motor output torque is easier; in the angle from the rotor position 7.5° to the angle before the F-phase torque is fully established, the A-phase has a current rising process, this When the A-phase output torque rises, it makes up for the total torque dropped by the outer stator;
(2)外定子F相在转子位置7.5°时开通；当转子位置处于15°时，开始进入内定子A、B换相区；内定子A相开始关断，此时B相刚开通，处于相电感最小区域，转矩无法迅速建立，所以内定子总转矩开始下降，出现转矩波谷；当内定子给定转矩Tset与内定子实际总转矩Tie的转矩差满足条件Tset-Tie>k|Tdown|时，令外定子给定参考转矩Toref＝Tset+Tiref-Tie；此时外定子实际总转矩Toe能够快速跟随给定转矩Toref，内定子参考转矩Tiref＝Tset，所以电机实际总转矩Te＝Toref+Tie＝2Tset；通过增加外定子给定参考转矩，提升电机总转矩，来弥补内定子给定转矩与实际转矩的差值，以此保持电机总输出转矩恒定在2Tset附近；此时电机转子正处于外定子F相开通区域，而且位于电感上升区，电机输出转矩更容易；在转子位置15°至F相转矩完全建立之前的这段角度内，F相有一个电流抬升的过程，此时F相输出转矩上升，弥补内定子下降的总转矩；(2) The F phase of the outer stator is turned on when the rotor position is 7.5°; when the rotor position is at 15°, it begins to enter the commutation area of the inner stator A and B; the inner stator phase A starts to be turned off, and the B phase is just turned on at this time. In the region with the smallest phase inductance, the torque cannot be established quickly, so the total torque of the inner stator begins to decrease, and a torque trough appears; when the torque difference between the given torque Tset of the inner stator and the actual total torque Tie of the inner stator satisfies the condition T Whenset -Tie >k|Tdown |, let the external stator reference torque Toref =Tset +Tiref -Tie ; at this time, the actual total torque Toe of the outer stator can quickly follow the given torque Toref , the internal stator reference torque Tiref =Tset , so the actual total motor torque Te =Toref +Tie =2Tset ; by increasing the external stator given reference torque, the total motor torque is increased to make up for the internal torque The difference between the sub-given torque and the actual torque, so as to keep the total output torque of the motor constant around 2Tset ; at this time, the motor rotor is in the open area of the outer stator F-phase, and in the inductance rise area, the motor output torque It is easier; in the period from the rotor position 15° to the angle before the F-phase torque is fully established, the F-phase has a current rising process, and the F-phase output torque rises at this time, making up for the total torque that the inner stator drops;
内定子B相在转子位置15°时开通；当转子位置处于22.5°时，开始进入外定子F、D换相区；外定子F相开始关断，此时D相刚开通，处于相电感最小区域，转矩无法迅速建立，所以外定子总转矩开始下降，转矩互补过程与上述情况类似。The B phase of the inner stator is turned on when the rotor position is 15°; when the rotor position is 22.5°, it begins to enter the commutation area of the outer stator F and D; the outer stator phase F begins to turn off, and the D phase is just turned on at this time, and the phase inductance is the smallest. In the region, the torque cannot be established quickly, so the total torque of the outer stator begins to decrease, and the torque complementary process is similar to the above case.
外定子D相在转子位置22.5°时开通；当转子位置处于30°时，开始进入内定子B、C换相区；内定子B相开始关断，此时C相刚开通，处于相电感最小区域，转矩无法迅速建立，所以内定子总转矩开始下降，转矩互补过程与上述情况类似。The D phase of the outer stator is turned on when the rotor position is 22.5°; when the rotor position is at 30°, it begins to enter the commutation area of the inner stator B and C; the inner stator phase B starts to turn off, and the C phase is just turned on at this time, and the phase inductance is the smallest. In the region, the torque cannot be established quickly, so the total torque of the inner stator begins to decrease, and the torque complementary process is similar to the above case.
内定子C相在转子位置30°时开通；当转子位置处于37.5°时，开始进入外定子D、E换相区；外定子D相开始关断，此时E相刚开通，处于相电感最小区域，转矩无法迅速建立，所以外定子总转矩开始下降，转矩互补过程与上述情况类似。The inner stator phase C is turned on when the rotor position is 30°; when the rotor position is 37.5°, it begins to enter the commutation zone of the outer stator D and E; the outer stator phase D starts to turn off, and the E phase is just turned on at this time, and the phase inductance is the smallest. In the region, the torque cannot be established quickly, so the total torque of the outer stator begins to decrease, and the torque complementary process is similar to the above case.
外定子E相在转子位置37.5°时开通；当转子位置处于45°时，开始进入内定子C、A换相区；内定子C相开始关断，此时A相刚开通，处于相电感最小区域，转矩无法迅速建立，所以内定子总转矩开始下降，转矩互补过程与上述情况类似。The E phase of the outer stator is turned on when the rotor position is 37.5°; when the rotor position is 45°, it begins to enter the commutation area of the inner stator C and A; the inner stator phase C starts to turn off, and the A phase is just turned on at this time, and the phase inductance is the smallest. In the region, the torque cannot be established quickly, so the total torque of the inner stator begins to decrease, and the torque complementary process is similar to the above case.
所获得的双定子开关磁阻电机内定子转矩、外定子转矩、总转矩波形如图4所示。The obtained dual-stator switched reluctance motor inner stator torque, outer stator torque, and total torque waveforms are shown in Figure 4.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210487606.7ACN114759860A (en) | 2022-05-06 | 2022-05-06 | Complementary type direct instantaneous torque control method for double-stator switched reluctance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210487606.7ACN114759860A (en) | 2022-05-06 | 2022-05-06 | Complementary type direct instantaneous torque control method for double-stator switched reluctance motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114759860Atrue CN114759860A (en) | 2022-07-15 |
Family
ID=82333130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210487606.7APendingCN114759860A (en) | 2022-05-06 | 2022-05-06 | Complementary type direct instantaneous torque control method for double-stator switched reluctance motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114759860A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117674658A (en)* | 2023-12-02 | 2024-03-08 | 中国矿业大学 | Torque pulsation suppression method and device for novel decoupling double-stator switch reluctance motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201855A (en)* | 2014-08-27 | 2014-12-10 | 中国矿业大学 | Two-level suppression method for torque pulsation of four-phase switch reluctance machine |
| CN104333276A (en)* | 2014-08-27 | 2015-02-04 | 中国矿业大学 | Torque ripple two-level inhibition method of three-phase switched reluctance motor |
| CN107425782A (en)* | 2017-07-12 | 2017-12-01 | 大连理工大学 | The method that switched reluctance machines realize direct Instantaneous torque control |
| CN110048573A (en)* | 2019-04-04 | 2019-07-23 | 南京航空航天大学 | A kind of bimorph transducer electric excitation biconvex electrode electric machine that loss of excitation is fault-tolerant and its method |
| CN110880900A (en)* | 2019-08-30 | 2020-03-13 | 南京理工大学 | A method for torque ripple suppression of switched reluctance motors |
- 2022
- 2022-05-06CNCN202210487606.7Apatent/CN114759860A/enactivePending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201855A (en)* | 2014-08-27 | 2014-12-10 | 中国矿业大学 | Two-level suppression method for torque pulsation of four-phase switch reluctance machine |
| CN104333276A (en)* | 2014-08-27 | 2015-02-04 | 中国矿业大学 | Torque ripple two-level inhibition method of three-phase switched reluctance motor |
| CN107425782A (en)* | 2017-07-12 | 2017-12-01 | 大连理工大学 | The method that switched reluctance machines realize direct Instantaneous torque control |
| CN110048573A (en)* | 2019-04-04 | 2019-07-23 | 南京航空航天大学 | A kind of bimorph transducer electric excitation biconvex electrode electric machine that loss of excitation is fault-tolerant and its method |
| CN110880900A (en)* | 2019-08-30 | 2020-03-13 | 南京理工大学 | A method for torque ripple suppression of switched reluctance motors |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117674658A (en)* | 2023-12-02 | 2024-03-08 | 中国矿业大学 | Torque pulsation suppression method and device for novel decoupling double-stator switch reluctance motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107769502B (en) | Rotor permanent magnet type hybrid excitation axial flux switching permanent magnet motor | |
| Dowlatshahi et al. | Torque ripple minimization of switched reluctance motor using modified torque sharing function | |
| CN112467952B (en) | Rotor permanent magnet type double-stator axial magnetic field hybrid permanent magnet flux switching motor | |
| CN110829939A (en) | Control method for reducing torque ripple of doubly salient electro-magnetic motor | |
| CN103236813A (en) | Control system of permanent magnet brushless direct current motor | |
| CN115037221B (en) | DITC control system of switched reluctance motor based on adaptive conduction angle TSF | |
| CN107070314A (en) | A kind of electric excitation biconvex electrode electric machine shifts to an earlier date angle of overlap self-optimizing control method | |
| CN114123928B (en) | Optimal current control method of N-phase doubly salient motor based on N+1 bridge arm | |
| CN112994535B (en) | Novel power converter for double-stator switch reluctance motor | |
| CN107634633A (en) | Auxiliary slot setting method and application of fractional slot asynchronous starting permanent magnet synchronous motor | |
| CN114759860A (en) | Complementary type direct instantaneous torque control method for double-stator switched reluctance motor | |
| US6528964B2 (en) | Method and system of reducing turn-off loss and noise in a switched reluctance motor drive | |
| Hu et al. | Torque ripple minimization of six-phase switched reluctance motor based on enhanced direct instantaneous torque control | |
| CN108512465B (en) | A control method for fast commutation of switched reluctance motor common-up tube power converters | |
| CN111193458B (en) | SRM direct instantaneous torque control method for dynamically adjusting DC bus voltage | |
| CN114244241B (en) | Online selection method for optimal advanced phase change angle of electro-magnetic doubly salient motor | |
| WO2016029777A1 (en) | Three-phase switched reluctance motor torque ripple three-level suppression method | |
| CN101860210A (en) | A New Cascaded Structure of Boost Chopper Circuit | |
| CN111669004B (en) | An Optimal Design Method for Slot Number of Low-speed High-torque Permanent Magnet Synchronous Motor | |
| CN210380419U (en) | Four-phase block rotor pole electric excitation double salient pole motor | |
| Jing et al. | Research on torque ripple optimization of switched reluctance motor based on finite element method | |
| US9787238B2 (en) | Four-phase switched reluctance motor torque ripple three-level suppression method | |
| CN111654199A (en) | Asymmetric half-bridge power converter for switched reluctance motor and control method thereof | |
| CN110311487A (en) | Four-phase block rotor polar electric excitation doubly salient motor | |
| Singh et al. | An analytical approach for optimizing commutation strategy of switched reluctance motor drive for light electric vehicle |
Legal Events
| 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 |