电测与仪表2015,Vol.52Issue(20):57-64,8.
基于广域测量信号的双馈风电机组阻尼控制策略
WAMS-based damping control strategy of doubly-fed induction generator
摘要
Abstract
This paper presents a supplementary control of doubly-fed induction generator ( DFIG) to damp the inter-area oscillation.Firstly, the small signal dynamic model of DFIG was established.Secondly, the theory of dynamic active power injection and dynamic reactive power injection to improve the system damping was proposed.A supple-mentary damping controller of DFIG was investigated by this theory.The controller was designed based on the power system stabilizer ( PSS ) .The voltage phase angles difference obtained from the Wide Area Measurement Signals ( WAMS) was selected as the input signal.Considering the capability of decoupled active power and reactive power control of DFIG, the supplementary damping controller was added to the active power control loop and reactive power control loop separately, and the effects of the control were analyzed.Finally, the proposed controller' s performance was accessed through eigenvalue analysis and time domain simulation, and the result shows the effectiveness of the ad-ditional damping control strategy and the correctness of improving the system damping through the dynamic power in-jection.关键词
电力系统/低频振荡/双馈风电机组/阻尼控制/有功功率控制/无功功率控制Key words
power system/low frequency oscillation/DFIG/damping control/active power control/reactive power con-trol分类
信息技术与安全科学引用本文复制引用
朱晓荣,张建超,王毅..基于广域测量信号的双馈风电机组阻尼控制策略[J].电测与仪表,2015,52(20):57-64,8.基金项目
国家自然科学基金资助项目(51277072) (51277072)