基于根轨迹法的单相PWM整流器比例-谐振电流调节器设计

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Abstract Proportional-resonant (PR) regulator can provide zero steady state error current control for single-phase PWM rectifier. Conventional method to set the PR regulator is to set the proportional and the resonant factors separately. With this method, the current control loop tends to be unstable when the switching sampling frequency is low. To solve this problem, discrete-domain designing is proposed in this paper. Based on root-locus method, the zeros and the gain of the current controller can be set efficiently, ensuring the stability of the current control loop. Moreover, good steady-state and dynamic performance can be achieved in current control. Simulation and experimental results validate proposed design method.

Key words： Single-phase PWM rectifier proportional resonant regulator root-locus method

Received: 01 September 2010 Published: 20 March 2014

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TM461

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	Wang Jian
	Trllion Q Zheng
	Gao Jilei

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Wang Jian,Trllion Q Zheng,Gao Jilei. Design of Current Proportional-Resonant Regulator for Single-Phase PWM Rectifier Based on Root-Locus Method[J]. Transactions of China Electrotechnical Society, 2012, 27(9): 251-256.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2012/V27/I9/251

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