摘要
根据开关磁阻风力发电系统工作原理及对并网过程分析,结合Z源逆变器的单级式升降压特性,针对发电机输出直流电压偏低的情况,采用基于SVPWM调制的Z源逆变器实现系统并网的策略,实现逆变后输出电压满足并网的要求.通过并网逆变控制器的设计实现Z源网络的电容端电压的稳定及系统的有功功率和无功功率控制.在Matlab/Simulink仿真平台下,建立开关磁阻风力发电系统和Z源逆变器的仿真模型,仿真运行结果表明Z源逆变器应用于开关磁阻风力发电并网系统中的可行性和有效性.
This paper proposes the use of Z source inverter with grid connected switched reluctance wind power generation systems. Based on the operation of switched reluctance generator （SRG） and requirements of grid-connected, considering the unique single stage buck boost feature of Z source inverter, Z source inverter with space vector pulse with modulation （SVPWM） is adopted to satisfy the voltage level when the SRG＇s DC output voltage is low. To maintain Z source capacitor voltage stable and control the active and reactive power by the regulation of boost factor and d-q axis current, the grid connected control method is designed for the system.Simulation system of wind power generation on SRG and Z source inverter are con- structed based on Matlab/Simulink platform. The simulation results reveal that Z source inverter is feasible and valuable in wind power generation on SRG system.
出处
《系统科学与数学》
CSCD
北大核心
2015年第1期9-18,共10页
Journal of Systems Science and Mathematical Sciences
关键词
风力发电
开关磁阻发电机
Z源逆变器
SVPWM.
Wind power generation, switched reluctance generator, Z source in-verter, SVPWM.
