摘要
在剖析双馈异步发电机工作原理的基础上建立了其两相同步旋转d-q坐标系下的数学模型,采用定子磁链定向矢量控制策略对变速恒频双馈风力发电系统输出有功、无功功率实现了解耦控制,设计了双馈异步发电机转子侧变换器的双闭环控制系统。以联合动力公司UP77/1500 IIA LT1.5 MW变速恒频双馈风力发电机组为研究对象,在MATLAB/Simulink平台下对系统进行了仿真试验。结果表明,在该控制策略下兆瓦级风电机组具有良好的运行特性。
Based on the working principle of the double-fed induction generator （DFIG）, a mathe- matical model of the DFIG in the two-phase synchronous rotation dq coordinate is derived, and a de- coupling control method of the active and reactive output power of the variable speed constant frequen- cy （VSCF） doubly-fed wind power system is presented based on the stator flux oriented vector control strategy. Then a double closed loop control system of the rotor-side converter of the DFIG is designed. To verify the correct and valid of the control model, a simulation test is built under MATLAB/Simulink platform, which takes UP77/1500 IIA LT 1.5MW VSCF doubly-fed wind turbine as the research object. The simulation results show that under the proposed vector control strategy, the double-fed wind power system has satisfactory dynamic characteristics.
出处
《可再生能源》
CAS
北大核心
2013年第8期22-27,共6页
Renewable Energy Resources
基金
宁夏自然科学基金项目(NZ12205)
关键词
风力发电
变速恒频
兆瓦级风电机组
定子磁链定向
解耦控制
wind power generation
variable speed constant frequency
megawatt wind turbines
stator-flux oriented
decoupling control
