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| A Novel Control Strategy for 400Hz Three-Phase Four-Wire PWM Rectifiers with Zero Steady-State Error |
| Shi Jianjiang1,Wang Wenjie1,Long Jiangtao1,Yuan Hao1,Yue Weifeng2,He Xiangning1 |
1. College of Electrical Engineering of Zhejiang University Hangzhou 310027 China
2.Beijing Aeronautical Technology Research Center Beijing 100076 China |
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Abstract For the 400Hz three-phase four-wire PWM rectifier,a new control strategy is presented in this paper by using a novel virtually orthogonal transform to achieve zero steady-state error and independent control of each phase. The paper analyzes the model of the controller and its block diagram in detail,achieving the voltage balance in serial output-capacitor by adjusting DC bias in the PWM modulation wave. The control scheme also reduces the ripple in the current by improving the traditional SPWM. Finally,the control strategy is verified by the simulation and experiment results,with the features of easy design and modularization.
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Received: 16 February 2012
Published: 11 December 2013
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2013, Vol. 28 
