摘要
建立了三电平PWM整流器的数学模型,对整流器滑模控制策略进行了研究,设计了基于PI调节的电流内环和基于滑模控制的电压外环的双闭环控制器,给出了仿真结果。实验表明:该PWM整流器可以有效抑制谐波,实现网侧单位功率因数控制,具有优越动静态性能。
In this paper, the mathematical model of Three-level rectifiler is founded,and the Sliding-mode control strategy is studied, a double closed-loop control system based on current closed-loop of PI regulator and voltage closed-loop of the Sliding-mode control regulator had been designed. The results of the emulation and the experiment were present. The experiment showed that the rectifier could effectively restrain the harmonic pollution and the system presents better dynamic and static characters.
出处
《电源世界》
2010年第7期25-27,30,共4页
The World of Power Supply
关键词
三电平PWM整流器
滑模控制
Three-level PWM rectifiler, Sliding-mode control
