| 永磁同步风电机组的主动支撑控制及其在弱电网下的适应性分析 |
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| 引用本文： | 葛延峰,孙 颖,韩子娇,刘 闯,蔡国伟,杨晓宇.永磁同步风电机组的主动支撑控制及其在弱电网下的适应性分析[J].陕西电力,2020,0(4):62-69. |
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| 作者姓名： | 葛延峰 孙 颖 韩子娇 刘 闯 蔡国伟 杨晓宇 |
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| 作者单位： | （1. 国网辽宁省电力有限公司， 辽宁 沈阳 110006； 2. 东北电力大学 电气工程学院，吉林 吉林 132012；3. 国网山东日照供电公司，山东 日照 276800） |
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| 摘 要： | 为了提升风电机组在弱电网下电压与频率支撑能力，介绍了一种适用于永磁同步发电机（PMSG）的主动支撑控制策略。该控制策略将永磁同步发电机网侧变流器等效成1个电压源型的虚拟同步发电机（VSG），不仅使PMSG直接与电网同步，而且在电力系统功率发生波动时可通过利用风机的转子动能为系统提供惯量支撑。详细分析了弱电网下主动支撑控制的小信号模型，并基于PSCAD/EMTDC仿真验证了所提控制策略的有效性和在弱电网下的适应性。
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| 关 键 词： | 主动支撑 PMSG 弱电网 VSG |
Active Support Control Strategy of Permanent Magnet Synchronous Wind Turbine and Its Adaptability Analysis under Weak Grid |
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| GE Yanfeng,SUN Ying,HAN Zijiao,LIU Chuang,CAI Guowei,YANG Xiaoyu.Active Support Control Strategy of Permanent Magnet Synchronous Wind Turbine and Its Adaptability Analysis under Weak Grid[J].Shanxi Electric Power,2020,0(4):62-69. |
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| Authors: | GE Yanfeng SUN Ying HAN Zijiao LIU Chuang CAI Guowei YANG Xiaoyu |
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| Affiliation: | （1. Liaoning Electricity Power Company Ltd.，110006， Shenyang，China. 2. School of Electrical Engineering， Northeast Electric Power University，Jilin 132012，China. 3. State Grid Shandong Rizhao Power Supply Company， Rizhao 276800，China） |
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| Abstract: | An active support control strategy for permanent magnet synchronous generator （PMSG）is introduced to improve the voltage and frequency support capability of wind turbines under weak grid. The active support control strategy equates the grid-side converter of PMSG to a voltage source virtual synchronous generator （VSG），which can not only achieve self-synchronization of permanent magnet direct-drive wind power grid-connected system and power grid， but also can provide inertia support for the system by using the kinetic energy of wind turbine rator when power system power fluctuations occur. In addition，the small signal model of active support control is analyzed in detail under weak grid， and the effectiveness of the control strategy and its adaptability under weak grid are verified based on PSCAD / EMTDC simulation. |
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| Keywords: | active support control PMSG weak grid VSG |
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