A novel dynamic equivalence method for grid-connected wind farm

作     者：Jia-geng QIAO Zong-xiang LU Yong MIN 

作者机构：State Key Laboratory of Power Systems Department of Electrical Engineering Tsinghua University Beijing 100084 China 

出 版 物：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 (浙江大学学报（英文版）A辑（应用物理与工程）)

年 卷 期：2008年第9卷第4期

页      面：558-563页

核心收录：

学科分类：080802[工学-电力系统及其自动化] 080703[工学-动力机械及工程] 0808[工学-电气工程] 080704[工学-流体机械及工程] 08[工学] 0807[工学-动力工程及工程热物理] 

主　　题：Grid-connected wind farm Dynamic equivalence Squirrel-Cage Induction Generator (SCIG) Genetic algorithm 

摘      要：Dynamic equivalence of the wind farm is a fundamental problem in the simulation of a power system connected with wind farms because it is unpractical to model every generator in a wind farm in detail. In this paper, an Equivalence Method based on the Output Characteristics (EMOC) is proposed, with which the wind farm composed of Squirrel-Cage Induction Generators (SCIGs) can be equivalent to one generator. By considering the diversity of wind generators and special operating characteristics of a wind farm, the equivalent generator based on EMOC responds accurately in various faults. No matter whether the wind farm is integrated in grid or just programmed, EMOC can be used to acquire an accurate equivalent generator. Simulation of the dynamic equivalence of an SCIG wind farm validated the method.