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Study and Control of Three-Phase PWM Rectifier Based on Dual Single-Input Single-Output Model

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3 Author(s)
Zhonggang Yin ; Dept. of Electr. Eng., Xi'an Univ. of Technol., Xi'an, China ; Jing Liu ; Yanru Zhong

A novel dual single-input single-output (DSISO) model for a three-phase two-level PWM rectifier is proposed, in order to simplify the complicated structure of multiple input variables and multiple control objectives. In the proposed model, the three-phase PWM rectifier is equivalent to two single-phase PWM rectifiers in the α-β stationary reference frame, which is easier to analyze than a three-phase PWM rectifier. Based on the DSISO model, the small-signal model is derived, the control-to-output transfer function is deduced, and the design principle of the voltage controller is given. The control strategy is analyzed to determine switching control signals in a switching period. Experimental results confirm the validity of the DSISO model and the feasibility of the control strategy based on DSISO model.

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Industrial Informatics, IEEE Transactions on  (Volume:9 ,  Issue: 2 )