含双馈风电机的电力系统电压稳定性分岔分析

doi:10.11930/j.issn.1004-9649.2014.3.42.5

中国电力 ›› 2014, Vol. 47 ›› Issue (3): 42-47.DOI: 10.11930/j.issn.1004-9649.2014.3.42.5

含双馈风电机的电力系统电压稳定性分岔分析

袁义桃¹, 康积涛¹, 吴小刚¹, 李亚辉²

1. 西南交通大学电气工程学院,四川成都 610031；
2. 中铁第四勘察设计院,湖北武汉 430063

收稿日期:2013-12-28 出版日期:2014-03-31 发布日期:2015-12-18
作者简介:袁义桃（1987-）,男,四川达州人,硕士研究生,从事风电系统的电压稳定研究。

Bifurcation Analysis on Voltage of Power System with Doubly Fed Induction Generator

YUAN Yi-tao¹, KANG Ji-tao¹, WU Xiao-gang¹, LI Ya-hui²

1. School of Electric Engineering, Southwest Jiaotong University, Chengdu 610031, China;
2. China Railway Fourth Survey and Design Institute, Wuhan 430063, China

Received:2013-12-28 Online:2014-03-31 Published:2015-12-18

摘要/Abstract

摘要： 风电并网改变系统潮流,为研究风电并网对电压稳定的影响,建立含双馈异步发电机（DFIG）风电系统的动态模型,提出一种DFIG转子控制电压的新方法,将DFIG稳态转子控制电压值作为动态DFIG模型的转子控制电压值,随着系统运行状态变化而改变控制电压值。应用延拓法追踪动态负荷参数变化时系统的平衡解流形,并采用分岔理论分析动态负荷参数变化对风电系统电压稳定的影响。仿真结果表明,不同的风力机模型会使电压稳定性分析结果产生差异,且上述新的DFIG转子控制电压方法更加精确、可行。

关键词: 双馈异步发电机, 风电系统, 分岔理论, 动态电压稳定, 延拓法

Abstract: The power flow of the grid will be changed by the wind power connected with it. For studying its impact on voltage stability,a dynamic model is built for wind power system with doubly fed iduction generator(DFIG), and a new approach to deal with the rotor control voltage of DFIG is proposed, in which DFIG's steady state rotor control voltage is used as rotor control voltage and this value is changed with the change of state of system. The equilibrium solution manifold of power system is tracked under variable load parameter, the influence of load parameter on wind power system is analysed based on bifurcation theory. The simulation showed that the difference of voltage stability analysis between different wind turbine model, and the proposed new approach is feasible.

Key words: DFIG, wind power system, bifurcation theory, dynamic voltage stability, continuation method

中图分类号:

TM711

袁义桃, 康积涛, 吴小刚, 李亚辉. 含双馈风电机的电力系统电压稳定性分岔分析[J]. 中国电力, 2014, 47(3): 42-47.

YUAN Yi-tao, KANG Ji-tao, WU Xiao-gang, LI Ya-hui. Bifurcation Analysis on Voltage of Power System with Doubly Fed Induction Generator[J]. Electric Power, 2014, 47(3): 42-47.

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含双馈风电机的电力系统电压稳定性分岔分析

Bifurcation Analysis on Voltage of Power System with Doubly Fed Induction Generator

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含双馈风电机的电力系统电压稳定性分岔分析

Bifurcation Analysis on Voltage of Power System with Doubly Fed Induction Generator

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