CN202033460U - Real-time monitoring system for power generator running state of double-fed wind power generating set - Google Patents
Real-time monitoring system for power generator running state of double-fed wind power generating setDownload PDFInfo
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Abstract
Translated fromChineseDescription
Translated fromChinese【技术领域】【Technical field】
本实用新型涉及电力设备安全技术领域，尤其是涉及一种双馈型风力发电机组的发电机部件运行状态实时监测系统。The utility model relates to the technical field of power equipment safety, in particular to a real-time monitoring system for the running state of generator components of a double-fed wind power generating set.
【背景技术】【Background technique】
风能作为一种清洁的永续能源，逐渐成为许多国家可持续发展战略的重要组成部分。根据全球风能理事会的统计，过去十年全球风力发电产业平均增长达到25％。而我国风力发电装机容量也一直迅猛发展，2009年我国总装机容量已超过25000MW，位列世界第二，当年新增装机容量超过1300MW，列世界第一位。As a clean and sustainable energy, wind energy has gradually become an important part of the sustainable development strategies of many countries. According to statistics from the Global Wind Energy Council, the average growth rate of the global wind power industry in the past decade has reached 25%. The installed capacity of wind power in my country has also been developing rapidly. In 2009, my country's total installed capacity exceeded 25,000 MW, ranking second in the world. The new installed capacity in that year exceeded 1,300 MW, ranking first in the world.
目前国内外风电场单机容量增至兆瓦级，而近年来我国亦有大批兆瓦级新型风力发电机组投入规模化生产运行，但由于规划时间短，其质量和运行可靠性问题突出，增加了技术和经济风险。而且，由于风资源分布的限制，风力发电场多分布在远离城市的荒漠、山区、牧场，随着海上风能的开发和利用，近海或者滩涂风力发电场成为未来风电的重要发展方向，因此风电场的地理环境和条件给机组的运行管理和维护带来了极大的困难。为了合理的运营和完善的维护风电场，提高风力发电机组的运行效率和可靠性，对每台风力发电机组进行状况的监测和故障的诊断必不可少。At present, the single-unit capacity of wind farms at home and abroad has increased to the megawatt level. In recent years, a large number of new megawatt-level wind turbines have been put into large-scale production and operation in my country. technical and economic risks. Moreover, due to the limitation of the distribution of wind resources, wind farms are mostly distributed in deserts, mountains, and pastures far away from cities. With the development and utilization of offshore wind energy, offshore or tidal flat wind farms will become an important development direction of wind power in the future. Therefore, wind farms The geographical environment and conditions have brought great difficulties to the operation, management and maintenance of the unit. In order to operate and maintain wind farms reasonably and improve the operating efficiency and reliability of wind turbines, it is essential to monitor the condition and diagnose faults of each wind turbine.
据统计，全世界风电机组中双馈型风力发电机组占85％以上，双馈型风力发电机组在运行过程中，由于不断受到变化的冲击载荷作用，其发电机的运行状态是时变的，因此有必要实时监测发电机的工作状态，为发电机的运行健康和日常维护提供基本和必要的依据。According to statistics, the doubly-fed wind turbines account for more than 85% of the wind turbines in the world. During the operation of the double-fed wind turbines, due to the constantly changing impact loads, the operating status of the generators is time-varying. Therefore, it is necessary to monitor the working status of the generator in real time to provide basic and necessary basis for the operation health and daily maintenance of the generator.
【实用新型内容】【Content of utility model】
本实用新型要解决的技术问题在于，针对现有技术的缺陷，提供一种能实时监测发电机的工作状态、保证发电机组正常运行的双馈发电机的发电机部件运行状态实时监测系统。The technical problem to be solved by the utility model is to provide a real-time monitoring system for the running state of generator components of a doubly-fed generator that can monitor the working state of the generator in real time and ensure the normal operation of the generator set.
为了解决上述技术问题，本实用新型提供一种双馈型风力发电机组的发电机部件运行状态实时监测系统，包括：In order to solve the above-mentioned technical problems, the utility model provides a real-time monitoring system for the running status of generator components of a doubly-fed wind power generating set, including:
用于探测发电机运行中多个参数信号的传感器单元，A sensor unit for detecting signals of multiple parameters in generator operation,
用于将所述参数信号进行放大或转换为标准参数信号的信号变送单元，A signal transmission unit for amplifying or converting the parameter signal into a standard parameter signal,
用于采集信号变送单元发送的标准参数信号的信号采集单元，及a signal collection unit for collecting standard parameter signals sent by the signal transmission unit, and
用于对所述标准参数信号进行实时分析处理以监测发电机的运行状态的状态分析单元。A state analysis unit for performing real-time analysis and processing on the standard parameter signal to monitor the running state of the generator.
进一步，在上述监测系统中，所述传感器单元包括电信号传感器、温度传感器、转速传感器、噪声传感器、电刷磨损传感器及振动传感器。Further, in the above monitoring system, the sensor unit includes an electrical signal sensor, a temperature sensor, a rotational speed sensor, a noise sensor, a brush wear sensor and a vibration sensor.
进一步，在上述监测系统中，所述电信号传感器包括转子电流互感器、转子电压互感器、转子相位传感器、定子电流互感器、定子电压互感器及定子相位传感器。Further, in the above monitoring system, the electrical signal sensor includes a rotor current transformer, a rotor voltage transformer, a rotor phase sensor, a stator current transformer, a stator voltage transformer and a stator phase sensor.
进一步，在上述监测系统中，所述转子电流互感器、转子电压互感器、转子相位传感器安装在发电机转子电缆出线盒侧，所述定子电流互感器、定子电压互感器、定子相位传感器安装在发电机定子电缆出线盒侧。Further, in the above monitoring system, the rotor current transformer, rotor voltage transformer, and rotor phase sensor are installed on the side of the generator rotor cable outlet box, and the stator current transformer, stator voltage transformer, and stator phase sensor are installed on the Generator stator cable outlet box side.
进一步，在上述监测系统中，所述温度传感器包括转子温度传感器、定子温度传感器、滑环温度传感器、自由端轴承温度传感器及自由端轴承温度传感器。Further, in the above monitoring system, the temperature sensor includes a rotor temperature sensor, a stator temperature sensor, a slip ring temperature sensor, a free end bearing temperature sensor and a free end bearing temperature sensor.
进一步，在上述监测系统中，所述滑环温度传感器安装在发电机的滑环室内；所述自由端轴承温度传感器安装在发电机自由端轴承内；所述输入端轴承温度传感器安装在发电机转子输入端轴承内。Further, in the above monitoring system, the slip ring temperature sensor is installed in the slip ring chamber of the generator; the free end bearing temperature sensor is installed in the generator free end bearing; the input end bearing temperature sensor is installed in the generator In the rotor input end bearing.
进一步，在上述监测系统中，所述噪声传感器安装在接近轴承部位。Further, in the above monitoring system, the noise sensor is installed near the bearing.
进一步，在上述监测系统中，所述电刷磨损传感器安装在电刷上。Further, in the above monitoring system, the brush wear sensor is installed on the brush.
进一步，在上述监测系统中，所述振动传感器包括位移传感器、速度传感器和加速度传感器，其分别安装在发电机的输入端、自由端。Further, in the above monitoring system, the vibration sensor includes a displacement sensor, a speed sensor and an acceleration sensor, which are respectively installed at the input end and the free end of the generator.
进一步，在上述监测系统中，所述信号采集单元为JNJ6600状态监视仪。Further, in the above monitoring system, the signal acquisition unit is a JNJ6600 status monitor.
本实用新型双馈型风力发电机组的发电机部件运行状态实时监测系统通过包括多种不同类型的传感器探测发电机组运行中多个关键部位的参数信号并对所述参数信号进行实时分析处理，实现了对发电机的运行状态实时监测和故障诊断，提高了风力发电机组的运行效率和可靠性。The real-time monitoring system of the operating state of the generator components of the double-fed wind power generating set of the utility model detects the parameter signals of a plurality of key parts in the operation of the generating set by including a variety of different types of sensors and performs real-time analysis and processing on the parameter signals to realize Real-time monitoring and fault diagnosis of the operating status of the generator are realized, and the operating efficiency and reliability of the wind power generating set are improved.
【附图说明】【Description of drawings】
下面将结合附图及实施例对本实用新型作进一步说明，附图中：The utility model will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:
图1是本实用新型双馈型风力发电机组的发电机部件运行状态实时监测系统较佳实施例的结构示意图；Fig. 1 is a structural schematic diagram of a preferred embodiment of a real-time monitoring system for the operating state of generator components of a doubly-fed wind power generating set of the present invention;
图2是图1中振动传感器较佳实施例的安装位置示意图。Fig. 2 is a schematic diagram of the installation position of the preferred embodiment of the vibration sensor in Fig. 1 .
【具体实施方式】【Detailed ways】
请参阅图1，图1是本实用新型双馈型风力发电机组的发电机部件运行状态实时监测系统较佳实施例的结构示意图。本实用新型的监测系统包括传感器单元10、信号变送单元20、信号采集单元30及状态分析单元40。所述传感器单元10用于探测发电机组运行中多个关键部位的参数信号，信号变送单元20用于将所述参数信号进行放大或转换为标准参数信号，信号采集单元30用于采集信号变送单元20发送的标准参数信号并传输给状态分析单元40，状态分析单元40用于对所述标准参数信号进行实时分析处理，以监测发电机的运行状态。Please refer to FIG. 1 . FIG. 1 is a structural diagram of a preferred embodiment of a real-time monitoring system for generator components operating status of a doubly-fed wind power generating set according to the present invention. The monitoring system of the present invention includes a
本实用新型双馈型风力发电机组的发电机部件运行状态实时监测系统对发电机部件运行状态进行实时监测，其中，传感器单元10给出了采用多种类型传感器方法，以及每种传感器优化的使用数量，所述多个传感器在发电机上的特定的安装位置，保证了系统对发电机运行状态监测的实时性和完整性。The real-time monitoring system for the operating state of the generator components of the double-fed wind power generating set of the utility model monitors the operating states of the generator components in real time, wherein the
传感器单元10包括以下类型：The
1、电信号传感器1. Electrical signal sensor
双馈型风力发电机组的发电机转子侧和定子侧都可以输出电能，转子和定子的电流和电压必须在允许范围之内，为了避免过流和过压烧坏绕组，发电机监测系统实时测量转子三相输出电缆的电流、电压、相位参数和定子三相输出电缆的电流、电压、相位参数。故所述电信号传感器包括转子电流互感器、转子电压互感器、转子相位传感器、定子电流互感器、定子电压互感器及定子相位传感器。Both the rotor side and the stator side of the double-fed wind turbine can output electric energy. The current and voltage of the rotor and stator must be within the allowable range. In order to avoid over-current and over-voltage burning of the winding, the generator monitoring system measures The current, voltage, and phase parameters of the rotor three-phase output cable and the current, voltage, and phase parameters of the stator three-phase output cable. Therefore, the electrical signal sensor includes a rotor current transformer, a rotor voltage transformer, a rotor phase sensor, a stator current transformer, a stator voltage transformer and a stator phase sensor.
2、温度传感器2. Temperature sensor
发电机监测系统实时测量转子绕组和定子绕组的温度参数，监测绕组的温度变化情况。发电机在运行过程中，发电机输入端和自由端的轴承内圈转速随着转子转速变化而变化，与轴承内圈形成相对运动，对发电机输入端和自由端轴承进行温度监测，掌握发电机轴承的运行状态。双馈发电机转子结构带有滑环，滑环内的温度参数也是监测系统测量的对象。故所述温度传感器包括转子温度传感器、定子温度传感器、滑环温度传感器、自由端轴承温度传感器及自由端轴承温度传感器。The generator monitoring system measures the temperature parameters of the rotor winding and stator winding in real time, and monitors the temperature change of the winding. During the operation of the generator, the speed of the inner ring of the bearing at the input end and the free end of the generator changes with the speed of the rotor, and forms a relative motion with the inner ring of the bearing. The temperature of the bearing at the input end and the free end of the generator is monitored to control the generator The operating state of the bearing. The double-fed generator rotor structure has a slip ring, and the temperature parameters in the slip ring are also the objects measured by the monitoring system. Therefore, the temperature sensor includes a rotor temperature sensor, a stator temperature sensor, a slip ring temperature sensor, a free end bearing temperature sensor and a free end bearing temperature sensor.
3、转速传感器3. Speed sensor
发电转子的转速收到额定转速的限制，通过测量转子转速参数，可以监测发电机的旋转频率。The speed of the generator rotor is limited by the rated speed. By measuring the parameters of the rotor speed, the rotation frequency of the generator can be monitored.
4、电刷磨损传感器4. Brush wear sensor
发电机的电刷和接地碳刷在运行过程中不断受到磨损，正常维护时每隔6个月关停发电机检查，实时监测电刷磨损参数，可以及时了解电刷和集电环的状态，避免不正常的过度磨损。The brushes and grounding carbon brushes of the generator are constantly worn during operation. During normal maintenance, the generator is shut down for inspection every 6 months, and the wear parameters of the brushes are monitored in real time, so that the status of the brushes and slip rings can be known in time. Avoid abnormal excessive wear.
5、噪声传感器5. Noise sensor
发电机正常运行过程中具有稳定的噪声声强和声能，通过测量发电机噪声参数，可以监测发电机运行状态。The generator has stable noise intensity and sound energy during normal operation. By measuring the noise parameters of the generator, the operating status of the generator can be monitored.
6、振动传感器6. Vibration sensor
对于旋转设备，振动参数是反映设备工作状态的最有效的参数。通过实时测量发电机的振动参数，可以准确的判断发电机的工作状态。For rotating equipment, vibration parameters are the most effective parameters to reflect the working state of the equipment. By measuring the vibration parameters of the generator in real time, the working state of the generator can be accurately judged.
传感器单元10的目的是测量双馈发电机各种运行参数，为了准确的反应发电机的实际运行状态，传感器必须安装在合理的位置，才能真实的反应双馈发电机的实时状态。The purpose of the
所述转子电流互感器、转子电压互感器、转子相位传感器安装在发电机转子电缆出线盒侧。所述定子电流互感器、定子电压互感器、定子相位传感器安装在发电机定子电缆出线盒侧。The rotor current transformer, rotor voltage transformer and rotor phase sensor are installed on the generator rotor cable outlet box side. The stator current transformer, stator voltage transformer and stator phase sensor are installed on the side of the generator stator cable outlet box.
所述转速传感器安装在发电机输入轴侧，可采用5700磁电式传感器。The speed sensor is installed on the input shaft side of the generator, and a 5700 magnetoelectric sensor can be used.
所述噪声传感器安装在接近轴承部位。The noise sensor is installed close to the bearing.
所述电刷磨损传感器安装在电刷上。The brush wear sensor is mounted on the brush.
所述滑环温度传感器安装在发电机的滑环室内。The slip ring temperature sensor is installed in the slip ring chamber of the generator.
所述自由端轴承温度传感器安装在发电机自由端轴承内，防止温度过高出现抱死状态。The free-end bearing temperature sensor is installed in the free-end bearing of the generator to prevent the lock-up state from being too high.
所述输入端轴承温度传感器安装在发电机转子输入端轴承内，防止温度过高出现抱死状态。The input end bearing temperature sensor is installed in the input end bearing of the generator rotor to prevent the locked state from being too high.
所述转子温度传感器用来测量转子绕组温度。The rotor temperature sensor is used to measure the rotor winding temperature.
所述定子温度传感器用来测量定子绕组温度。The stator temperature sensor is used to measure the stator winding temperature.
所述振动传感器用来测量发电机的机械振动情况，其可分为位移传感器、速度传感器和加速度传感器三种。The vibration sensor is used to measure the mechanical vibration of the generator, which can be divided into three types: displacement sensor, speed sensor and acceleration sensor.
所述位移传感器可采用5300电涡流传感器，可以测量轴向和径向的位移；The displacement sensor can adopt a 5300 eddy current sensor, which can measure axial and radial displacements;
所述速度传感器JNJ5500振动速度传感器，该传感器可以测量到低频到高频的多种振动信号，免电源供电，可采用钻孔安装或者粘贴安装方式；The speed sensor JNJ5500 vibration speed sensor can measure a variety of vibration signals from low frequency to high frequency, without power supply, and can be installed by drilling or pasting;
采用JNJ5400振动加速度传感器来测量轴向和径向振动信号的加速度值。JNJ5400 vibration acceleration sensor is used to measure the acceleration value of axial and radial vibration signals.
请参阅图2，图2是图1中振动传感器较佳实施例的安装位置示意图，上述三种振动传感器3安装在发电机1的自由端12、输入端14。Please refer to FIG. 2 . FIG. 2 is a schematic diagram of the installation position of a preferred embodiment of the vibration sensor in FIG. 1 . The above three vibration sensors 3 are installed on the free end 12 and the input end 14 of the generator 1 .
传感器单元10探测到的参数信号通过信号变送单元20传送给信号采集单元30，信号变送单元20可以是满足各自传感器信号变送要求的传输设备，对于变送单元20传送的多种电信号和机械信号，可采用JNJ6600状态监视仪进行采集。The parameter signal detected by the
状态分析单元40对发电机的运行状态进行实时分析和处理。状态分析单元40可以是根据不同运行环境下或者满足不同运营商特定需求的分析软件，状态分析单元把输入的数据转化为时域、频域或者其他物理空间下的曲线，提供给发电机运行管理工程师实时分析和管理。The state analysis unit 40 analyzes and processes the running state of the generator in real time. The state analysis unit 40 can be analysis software according to different operating environments or to meet the specific needs of different operators. The state analysis unit converts the input data into curves in time domain, frequency domain or other physical spaces, and provides them to generator operation management. Engineers analyze and manage in real time.
相比于现有技术，本实用新型双馈型风力发电机组的发电机部件运行状态实时监测系统通过包括多种不同类型的传感器探测发电机组运行中多个关键部位的参数信号并对所述参数信号进行实时分析处理，实现了对发电机的运行状态实时监测和故障诊断，提高了风力发电机组的运行效率和可靠性。Compared with the prior art, the real-time monitoring system of the operating state of the generator components of the doubly-fed wind power generating set of the utility model detects the parameter signals of multiple key parts in the operation of the generating set by including a variety of different types of sensors and analyzes the parameters The signal is analyzed and processed in real time, which realizes real-time monitoring and fault diagnosis of the generator's operating status, and improves the operating efficiency and reliability of the wind power generating set.
以上所述实施例仅表达了本实用新型的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本实用新型专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本实用新型构思的前提下，还可以做出若干变形和改进，这些都属于本实用新型的保护范围。因此，本实用新型专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.
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| CN102426338A (en)* | 2011-12-14 | 2012-04-25 | 华南理工大学 | Portable wind power quality monitor |
| CN102706560A (en)* | 2012-05-25 | 2012-10-03 | 华锐风电科技(江苏)有限公司 | State monitoring method and device of wind turbine generator set |
| CN104880795A (en)* | 2015-05-29 | 2015-09-02 | 国家电网公司 | Cap type optical cable splice tray with self-state monitoring |
| CN106532647A (en)* | 2015-09-14 | 2017-03-22 | 天津捷金金属制品有限公司 | Wind power generator control system based on PID control |
| CN107861062A (en)* | 2017-10-30 | 2018-03-30 | 重庆勤智科技有限公司 | Electric generating set rotor short circuit on-line monitoring system based on exciter current of generator synchronized sampling |
| CN107884713A (en)* | 2017-10-21 | 2018-04-06 | 湖南福湘发电设备有限公司 | A kind of generator failure detector |
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| CN108318815A (en)* | 2018-01-17 | 2018-07-24 | 河海大学 | A kind of doubly-fed wind turbine on-line monitoring and synthetic fault diagnosis method |
| CN109541466A (en)* | 2018-12-07 | 2019-03-29 | 雷勃电气（苏州）有限公司 | A kind of Electric machine structure part fatigue life on-line measuring device and detection method |
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| CN102426338A (en)* | 2011-12-14 | 2012-04-25 | 华南理工大学 | Portable wind power quality monitor |
| CN102706560A (en)* | 2012-05-25 | 2012-10-03 | 华锐风电科技(江苏)有限公司 | State monitoring method and device of wind turbine generator set |
| CN102706560B (en)* | 2012-05-25 | 2017-12-12 | 华锐风电科技(江苏)有限公司 | The state monitoring method and device of a kind of wind power generating set |
| CN104880795A (en)* | 2015-05-29 | 2015-09-02 | 国家电网公司 | Cap type optical cable splice tray with self-state monitoring |
| CN106532647A (en)* | 2015-09-14 | 2017-03-22 | 天津捷金金属制品有限公司 | Wind power generator control system based on PID control |
| CN107884713A (en)* | 2017-10-21 | 2018-04-06 | 湖南福湘发电设备有限公司 | A kind of generator failure detector |
| CN107861062A (en)* | 2017-10-30 | 2018-03-30 | 重庆勤智科技有限公司 | Electric generating set rotor short circuit on-line monitoring system based on exciter current of generator synchronized sampling |
| CN107861062B (en)* | 2017-10-30 | 2019-10-22 | 重庆勤智科技有限公司 | On-line monitoring system for generator set rotor short circuit based on synchronous sampling of generator excitation current |
| CN108063526A (en)* | 2017-12-14 | 2018-05-22 | 浙江运达风电股份有限公司 | A kind of double-feed wind motor collector ring room temperature humidity control method and system |
| CN108063526B (en)* | 2017-12-14 | 2024-06-11 | 运达能源科技集团股份有限公司 | Method and system for controlling room temperature and humidity of collecting ring of doubly-fed wind driven generator |
| CN107969200A (en)* | 2017-12-23 | 2018-05-01 | 广西广付金商贸有限公司 | A kind of agricultural machinery fertilizer access device |
| CN108318815A (en)* | 2018-01-17 | 2018-07-24 | 河海大学 | A kind of doubly-fed wind turbine on-line monitoring and synthetic fault diagnosis method |
| CN109541466A (en)* | 2018-12-07 | 2019-03-29 | 雷勃电气（苏州）有限公司 | A kind of Electric machine structure part fatigue life on-line measuring device and detection method |
| CN110412397A (en)* | 2019-07-24 | 2019-11-05 | 陕西世翔电子科技有限公司 | Real-time monitoring system of grounding device based on Internet of things |
| CN110531742A (en)* | 2019-09-16 | 2019-12-03 | 重庆华能水电设备制造有限公司 | A kind of generator current collecting equipment real time monitoring and method for diagnosing faults |
| CN113775484A (en)* | 2021-10-14 | 2021-12-10 | 中国船舶重工集团海装风电股份有限公司 | Combined control method and device based on temperature change of torsion slip ring and unit power |
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