Electromagnetic transient equivalent modeling method and stability analysis of a permanent magnet synchronous generator

被引：0
|
作者：
Zou M. [1 ]
Zhao C. [1 ]
Xu J. [1 ]
机构：
[1] State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2023年 / 51卷 / 13期
基金：
中国国家自然科学基金;
关键词：
electro-magnetic transient (EMT); equivalent model (EM); offshore wind power (OWF); permanent magnet synchronous generator (PMSG); stability analysis;
D O I：
10.19783/j.cnki.pspc.221806
中图分类号：
学科分类号：
摘要：
The nested fast and simultaneous solution (NFSS) algorithm can significantly improve the simulation speed by node-elimination in the circuit. However, the equivalent circuit of a permanent magnet synchronous generator (PMSG) model provided by commercial simulation software cannot be obtained. This limits the application of the NFSS algorithm in the simulation of an offshore wind farm (OWF). To fill this gap, this paper aims to provide an electromagnetic transient (EMT) equivalent modelling method of PMSG and analyze the stability of the modelling method. First, a mathematical model of the PMSG is discretized and thus the equivalent circuit represented by a three-phase controlled current source is obtained. Then the interface method, control mode, and equivalent solution procedure of PMSG is given. The stability of the equivalent modeling method is analyzed considering the actual PMSG parameter. Finally, a detailed model (DM) and equivalent model (EM) are built in PSCAD/EMTDC to verify accuracy and stability. The results show that the proposed model has good accuracy and that the stability analysis is correct. This provides a model basis for the application of the NFSS algorithm in OWF and constraint conditions for the parameter selection of a generator. © 2023 Power System Protection and Control Press. All rights reserved.
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页码：25 / 36
页数：11
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