中国电机工程学报2017，Vol.37Issue(16)：4680-4690,11.DOI:10.13334/j.0258-8013.pcsee.161531
风机有功控制对系统暂态功角第二摆稳定性影响机理
Influence Mechanism of Active Power Control of Wind Turbine Generators on Power System Transient Second Swing Stability
摘要
Abstract
This paper aims to theoretically analyze the impact of post-fault active power control of centralized large-scale wind power base consisted of doubly-fed induction generators (DFIGs) on power system transient second swing stability.Based on the static extended equal area criterion,network node voltage equations of the system integrated with DFIGs were modified and one machine infinite bus model that is suitable for the multi-machine system integrated with wind power was built.By using the model,analytical calculations of two-machine system connected with DFIG were analyzed and the necessary and sufficient conditions for the transient second swing instability were proposed.It reveals that low post-fault active power of wind turbines has adverse effects on transient second swing stability.Then the interrelation between transient first swing stability and second one's of wind power integrated system was investigated.It reveals that as post-fault active power recovery speed of wind turbines gradually gets slower,the system which only had the possibility of first swing instability will have the possibility of second swing instability and it eventually decreases the entire system's transient angle stability.Simulation results show that the mechanism analysis is correct.The research extends the analysis method of transient angle stability of wind power integrated system that only focuses on transient first swing stability and provides theoretical guidance of transient stability control of power system integrated with wind power.关键词
双馈风机/暂态功角稳定性/第二摆稳定性/静态扩展等面积定则/影响机理Key words
doubly-fed induction generator (DFIG)/transient angle stability/the second swing stability/static extended equal area criterion (SEEAC)/influence mechanism分类
信息技术与安全科学引用本文复制引用
董哲,周明,李庚银,李孟军..风机有功控制对系统暂态功角第二摆稳定性影响机理[J].中国电机工程学报,2017,37(16):4680-4690,11.基金项目
国家重点研发计划项目课题(2016YFB0900105) （2016YFB0900105）
国家自然科学基金重大项目课题(51190103) （51190103）
国家电网公司科技项目(大型风电/光伏发电基地功率汇集与外送技术研究).Project Supported by National Key Research and Development Program (2016YFB0900105) （大型风电/光伏发电基地功率汇集与外送技术研究）
State Major Program of the National Natural Science Foundation of China (51190103) （51190103）
Science and Technology Project of State Grid Corporation of China (Power Collection & Sending-out Technology of Large-scale Wind/Photovoltaic Power Base). （Power Collection & Sending-out Technology of Large-scale Wind/Photovoltaic Power Base）
