基于DSP的三相PWM整流PI调节器设计  

The Design of Three-Phase PWM Rectifier PI Adjuster Based on DSP

作　　者：杨俊莲[1] 

机构地区：[1]辽宁装备制造职业技术学院,辽宁沈阳110161

出　　处：《通信电源技术》2012年第2期53-55,共3页Telecom Power Technology

摘　　要：通过分析三相脉宽调制(PWM)整流器在a-b-c及d-q旋转坐标系下的数学模型,设计了具有前馈解耦控制的PWM整流器双闭环控制系统。根据系统对电流内环及电压外环的控制要求设计了电流比例积分(PI)调节器及电压PI调节器。最后对整个PWM整流器双闭环控制系统进行仿真,并采用以DSP为核心构建PWM整流器控制系统,仿真和实验结果验证了PI调节器设计的正确性。A simplified mathematic model of three-phase Pulse Width Modulation（PWM） rectifier is analyzed in the a-b-c and d-q rotation frame,and the double closed-loop control system with feed-forward is established.According to the system control demands to inner current loop and outer voltage loop,the PI parameters of current and voltage adjuster are designed.Finally,the double close-loop control system is simulated and the PWM rectifier control system with DSP as the core is constructed,simulation and experiment results demonstrates the effectiveness and correctness of the design.

关 键 词：PWM整流器 双闭环 PI调节器 电流环 电压环 数字信号处理器 

分 类 号：TN35[电子电信—物理电子学] TM461[电气工程—电器]