电力建设Issue(8)：130-133,4.DOI:10.3969/j.issn.1000-7229.2014.08.023
三相对称故障下双馈风力发电机控制策略
Double-Fed Wind Generator Control Strategy in Three-Phase Symmetrical Fault
徐明辉 1李泽滔 1陶金1
作者信息
- 1. 贵州大学电气工程学院，贵阳市550025
- 折叠
摘要
Abstract
With the growing popularity of wind power generation system,double-fed wind generator (DFWG)as one of the most commonly used wind turbines,its problems are gradually revealed.Since wind energy has the characteristics of multiple uncontrollable factors and poor stability,it has brought many uncertainties for the grid control.To study the fault protection technology of double-fed wind power generation system in a three-phase symmetrical fault,firstly,this paper used the method of mathematical analysis to construct double-fed wind generator (DFWG)model,and analyzed the running state of the generator in three-phase symmetrical fault.Then Crowbar protection circuit was built;and voltage sag was simulated by a voltage sag generator in the experimental platform for testing.Finally,the verification was carried out through simulation.The experiment and simulation results show that the Crowbar circuit has significantly inhibition effect on current surge on the rotor side.So,the method of adding the Crowbar circuit to achieve low voltage ride through(LVRT )in three-phase symmetrical fault is feasible.关键词
双馈风力发电机/三相对称故障/Crowbar保护电路/控制策略Key words
double-fed wind generator (DFWG)/three-phase symmetrical fault/Crowbar protection circuit/control strategy分类
信息技术与安全科学引用本文复制引用
徐明辉,李泽滔,陶金..三相对称故障下双馈风力发电机控制策略[J].电力建设,2014,(8):130-133,4.
