摘要
描述了三相电压源型PWM整流器的工作原理,基于整流器网侧电流矢量推导出同步旋转坐标系下系统的数学模型,给出了一种电流前馈解耦控制算法。同时详细介绍了基于电流前馈解耦的PWM整流器双环控制系统设计方法,并且应用TMS320LF2407A建立了PWM整流器的DSP数字化实验系统。实验结果表明,该整流器能获得单位功率因数的正弦输入电流、稳定的直流输出电压和快速的动态响应。
The work principle of three phase voltage source PWM rectifiers was described, and the math model of system in the synchronization rotating coordinates by the AC current vector of PWM rectifier was deduced. A novel current feed-forward decoupled control algorithm was proposed, and the double loop control system was designed in detail based on this algorithm. A DSP digital experimental system was constituted with the TMS320LF2407A, and the experiment result was given. The experiment indicates that the PWM rectifier can achieve a sinusoidal current with unit power factor, a steady DC voltage, and a fast dynamic response.
出处
《电气传动》
北大核心
2008年第6期27-30,51,共5页
Electric Drive
基金
北京市教委面上项目基金资助(KM200710009004)
关键词
前馈解耦
双环控制
数字信号处理器
feed-forward decouple
double loop control
digital signal processor（DSP）
