摘要
针对大容量变速恒频风力发电机组并网和解列时的电流冲击问题,根据双馈电机交流励磁运行特点,在讨论其数学模型基础上,将定子磁链定向矢量控制技术应用于双馈发电机控制,设计了变速恒频风力发电空载并网控制策略。搭建了模拟平台实验样机,对空载并网前、并网和解列时刻的系统控制进行了完整的稳态、动态实验研究。实验结果表明,风力发电系统控制性能优良,可实现变速恒频风力发电的柔性并网及解列控制。
Aiming at the overshoot current of cuting-in and off grid connection in big capacity variable-speed constant-frequency wind power generation,according to characteristic of alternating current-excited doubly-fed induction generator（DFIG）,and the analysis the DFIG mathematic model,stator field-oriented vector control technique is applied to DFIG control.The strategy of variable-speed constant-frequency idle load cut-in grid connection is designed in this paper.Furthermore,the experimental set of simulate platform is built,on which the steady and dynamic experimental research of cutting-in and off grid connection control are conducted.The experimental results show that the control performance of wind power system is preferred and the system can achieve soft cut-in and off control for variable-speed constant-frequency wind power generation.
出处
《西安理工大学学报》
CAS
北大核心
2010年第4期449-453,共5页
Journal of Xi'an University of Technology
基金
陕西省"13115"科技创新工程重大科技专项资助项目(2007ZDKG-29)
陕西省重点学科建设专项资金资助项目(10700-080903)
陕西省教育厅专项科研资助项目(09JK640)
关键词
变速恒频
风力发电
定子磁链定向
柔性并网
解列
variable-speed constant-frequency
wind power generation
stator field-oriented
soft cutting-in
cutting-off
