无刷双馈风力发电机变速恒频控制研究

摘要

根据无刷双馈风力发电机(BDFG)的结构与运行原理,分析了其在转子速d,q坐标系下的数学模型.采用恒压频比控制策略,在Matlab/Simulink下完成BDFG变速恒频(VSCF)发电的开环仿真研究,并基于双三电平变流器结构,以DSP TMS320F2812为主控制器建立实验平台,完成BDFG带独立电阻负载的VSCF开环控制实验.仿真与实验结果验证了BDFG VSCF控制技术的正确性与有效性.%Based on the structure characteristics and operation principle of brushless doubly-fed generator (BDFG) in wind power generation system,the rotor speed d,q mathematical model of BDFC is analyzed.Under open-loop the dy namic simulation of BDFG is realized in Matlab/Simulink by using V/F control strategy,the variable-speed constant frequency (VSCF) experiment of BDFG with independent resistance load is conducted based on DSP TMS320F2812 con troller and dual three-level inverter. Simulation and experimental results verify the correctness and effectiveness of VSCF control technology of BDFG.