永磁同步风力发电系统并网及最大风能跟踪  

Permanent Magnet Synchronous Wind Power System Grid-connected and Maximum Wind Energy Tracking

作　　者：孔振东 洪诚程 KONG Zhen-dong;HONG Cheng-cheng(Nanjing Institute of Technology School of Electric Power Engineering,Nanjing,Jiangsu 211100)

机构地区：[1]南京工程学院电力工程学院

出　　处：《新型工业化》2019年第3期7-12,共6页The Journal of New Industrialization

基　　金：南京工程学院2018年大创项目—永磁同步风力发电系统并网及最大风能跟踪(201811276068X)

摘　　要：基于永磁同步风力发电机双PWM结构,从风力机特性原理入手,分析了风力机输出功率和风力机最大输出功率曲线。对于机侧PWM整流器采用转速电流双闭环控制策略,实现了对电机转速的控制,并结合变步长扰动算法实现最大风能跟踪;对于网侧PWM逆变器采用电网电压定向矢量控制,实现了有功和无功的解耦。仿真结果证实了所采用的控制策略合理性,具有良好的稳定性和动态性。Based on the dual PWM structure of the permanent magnet synchronous wind turbine,the output power and the maximum output power curve of the wind turbine are analyzed.For the side PWM rectifier,the speed current double closed-loop control strategy is adopted to control the motor speed,and the variable step perturbation algorithm is combined to realize the maximum wind energy tracking.For grid-side PWM inverter,the voltage oriented vector control is adopted to realize the decoupling of active and reactive power.Simulation results show that the proposed control strategy is reasonable,stable and dynamic.

关 键 词：永磁同步风力发电机 MPPT 功率解耦 爬山搜索法 变步长 

分 类 号：TM315[电气工程—电机] TM614