电网技术2018，Vol.42Issue(6)：1804-1810,7.DOI:10.13335/j.1000-3673.pst.2018.0115
次同步扰动下的双馈风机系统多频率响应分析
Analysis of Frequency Response of DFIG System Under Subsynchronous Disturbance
摘要
Abstract
This paper analyzes multi-frequency response of doubly fed induction generator (DFIG) under subsynchronous disturbance. Firstly, the DFIG system are divided into controlled asynchronous machine system (CAMS) and grid-side converter system (GSCS) based on response route of subsynchronous disturbance signal (SDS). Secondly, the frequency response of all sections of CAMS are qualitatively analyzed based on action or response processes of SDS in CAMS, and the multi-frequency response of rotator and stator are obtained. Next, the frequency response of all sections of GSCS are qualitatively analyzed based on action or response processes of SDS in GSCS, and the multi-frequency response of GSCS injected into grid is obtained. Then, the multi-frequency response of the output current of DFIG system injected into point of common coupling (PCC) is obtained, and its multi-frequency characteristics are revealed. Finally, the conclusion of theoretical analysis are verified based on simulations.关键词
次同步振荡/双馈风机/多频率响应/转子侧换流器/网侧换流器Key words
subsynchronous oscillation/DFIG/multi-frequency response/rotator side converter/grid-side converter分类
信息技术与安全科学引用本文复制引用
薛安成,吴雨,王子哲,李景一,毕天姝..次同步扰动下的双馈风机系统多频率响应分析[J].电网技术,2018,42(6):1804-1810,7.基金项目
国家重点研究发展计划项目(2017YFB0902000) （2017YFB0902000）
国家自然科学基金项目(G51477050).Project Supported by The National Key Research and Development Program (2017YFB0902000) （G51477050）
National Natural Science Foundation of China (G51477050). （G51477050）
