摘要
简述了三相电压型PWM整流器的工作原理和基于解耦控制的数学模型,为了提高控制性能,在整流器的控制中应用一种新型的变参数PI调节器,进行了MATLAB仿真,并应用TMS320F2812建立了PWM整流器的数字控制平台,整流和逆变均能实现高功率因数,且变参数PI调节器有效地降低了系统的超调量,缩短响应时间,提高了系统的鲁棒性,可获得稳定的直流输出电压和快速的动态响应。
This paper describes the working principle of the Three-phase voltage PWM rectifier and the math model based on decoupling control. To improve control performance, a new type variable parameter PI controller is applied in the rectifier. MATLAB simulation is made and TMS320F2812 is used to establish a digital control platform for the PWM rectifier. Rectification and inversion can both realize a high power factor, and the variable parameter PI controller can effectively reduce the overshoot , shorten response time and improve the robustness of the system. A steady DC output voltage and quick dynamic response can be obtained.
出处
《电气自动化》
2014年第6期8-10,13,共4页
Electrical Automation
关键词
PWM整流器
解耦控制
变参数PI控制器
数字信号处理器
PWM rectifier
decoupling control
variable parameters PI controller
digital signal processor （DSP）
