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Research on Dual Close-loop Three-level PWM Rectifier based on Decoupling
Author(s): 
Pages: 60-62
Year: Issue:  6
Journal: POWER ELECTRONICS

Keyword:  整流器/三电平解耦;
Abstract: 分析了三电平PWM整流器在旋转d,q坐标系中的简化数学模型;建立了电压、电流解耦环节,对解耦后的d,q轴电流id,iq分别进行PI控制.采用正弦脉宽调制(Sinusoidal Pulse Width Modulation,简称SPWM)控制策略,以TMS320F240型数字信号处理器(Digital Signal Processing,简称DSP)为数控平台实现了三电平整流器的电流解耦控制;最后给出了相应的仿真和实验波形.经研究发现,该整流器的谐波小,功率因数高,动态性能好,证实了三电平PWM整流器的电流解耦控制策略是正确可行的.
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