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Vol. 164, Issue 2, February 2014, pp. 1-5

 

Bullet

 

Design Research on Three-Phase PWM Rectifier Based on Double Closed Loop Control Technology
 

Guang Ya LIU, Fang Wang, Xiaosong LI

Electronic Engineering, Hubei University of Technology, Wuhan, 430068, Hubei Province, China
E-mail: whltxz@aliyun.com, wf123064@126.com, lixiaosong_nihao@sina.com

 

Received: 11 December 2013 /Accepted: 9 January 2014 /Published: 28 February 2014

Digital Sensors and Sensor Sysstems

 

Abstract: Based on the high frequency of three-phase voltage source PWM rectifier, this paper established a mathematical model of three phase current inner ring and outer ring voltage, and put forward the setting method of three phase double closed loop control. Finally, it was verified through simulation. The experimental results show that Three-phase output of DC voltage is stable with the operation of regulating systems, the current flowing into the grid tends to be sinusoidal and power factor is close to 1, which greatly reduce the interference of harmonics on the grid, thus improve grid operation.

 

Keywords: PWM, Double closed loop control, MATLAB, Rectifier.

 

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