文章摘要
张磊,张闯,罗毅,等.电网友好型双馈感应发电机的暂态协调控制策略[J].电力系统自动化,2019,43(12):44-50. DOI: 10.7500/AEPS20180212007.
ZHANG Lei,ZHANG Chuang,LUO Yi, et al.Transient Coordination Control Strategy of Grid-friendly Doubly-fed Induction Generator[J].Automation of Electric Power Systems,2019,43(12):44-50. DOI: 10.7500/AEPS20180212007.
电网友好型双馈感应发电机的暂态协调控制策略
Transient Coordination Control Strategy of Grid-friendly Doubly-fed Induction Generator
DOI:10.7500/AEPS20180212007
关键词: 电网友好技术  双馈感应发电机  虚拟惯量控制  有功控制  无功控制
KeyWords: grid-friendly technology  doubly-fed induction generator(DFIG)  virtual inertia control  active power control  reactive power control
上网日期:2019-04-23
基金项目:国家重点研发计划资助项目(2016YFB0900105)
作者单位E-mail
张磊 三峡大学电气与新能源学院, 湖北省宜昌市 443002 leizhang3188@163.com 
张闯 三峡大学电气与新能源学院, 湖北省宜昌市 443002  
罗毅 华中科技大学电气与电子工程学院, 湖北省武汉市 430074  
姚良忠 中国电力科学研究院有限公司, 北京市 100192  
钱敏慧 中国电力科学研究院有限公司, 北京市 100192  
摘要:
      以风电运行“电网友好化”为背景,综合考虑电网友好型双馈感应发电机(DFIG)控制策略在应用中的相互影响并提出改进稳定控制策略。以满足并网导则要求的DFIG虚拟惯量控制、暂态有功控制与暂态无功控制3种电网友好型DFIG控制策略为对象,首先分析了暂态无功控制与暂态有功控制对于暂态有功给定的影响,其次分析了暂态有功给定对虚拟惯量控制效果的影响,最后分析了虚拟惯量控制对暂态无功控制效果的影响。在考虑以上3种影响的基础上,针对上述电网友好型DFIG控制策略在具体暂态阶段中相互制约的现象,从最终控制效果出发,提出能够同时改善送端系统在短路故障及其恢复过程中的功角稳定,减小故障期间电压跌落深度的综合控制方案,并通过时域仿真验证了影响分析与改进控制的正确性和有效性。
Abstract:
      Based on the “grid-friendly” operation of wind power, this paper proposes an improved stability control strategy by comprehensively considering the interaction of grid-friendly doubly-fed induction generator(DFIG)control strategy in application. Taking the virtual inertia control(VIC), the transient active power control(TAPC)and transient reactive power control(TRPC)as research objects, the impact of TRPC and TAPC on the transient active power reference is firstly analyzed. Then the impact of transient active power reference on VIC, while the impact of VIC on TRPC is studied. Aiming at the phenomenon that the above grid-friendly DFIG control strategies are mutually restricted in a specific transient stage, this paper proposes an improved integrated control strategy that can improve the power angle stability of sending end system in the short circuit fault and its recovery process, and reduce the voltage sag depth in the fault from the perspective of final control effect. The time-domain simulation verifies the correctness and effectiveness of the impact analysis and the improved control strategy.
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