Title :
Decoupled State-Feedback and Sliding-Mode Control for Three-Phase PWM Rectifier
Author :
Zhang, Zhi ; Xie, Yunxiang ; Le, Jiangyuan ; Chen, Lin
Author_Institution :
Coll. of Electr. Eng., South China Univ. of Technol., Guangzhou
Abstract :
A nonlinear mathematical model of three-phase voltage source PWM rectifier is established in the dq rotating frame. Aiming at the poor dynamic performance of conventional PI controlled three-phase PWM rectifier, a control system with double close-loops of voltage and current is designed based on the mathematical model of 3-phase PWM rectifier. A sliding-mode control algorithm on synchronous rotating reference frame for the out-voltage-loop is proposed. Then, a decoupled state-feedback control method is applied to the current loop. The whole system is modelled and simulated between the proposed method and conventional double PI control. The results show that the proposed controller confers faster dynamic performance and robust performance.
Keywords :
PI control; PWM rectifiers; closed loop systems; control system synthesis; electric current control; nonlinear control systems; robust control; state feedback; variable structure systems; voltage control; close-loops; current control system; decoupled state-feedback; double PI control; nonlinear mathematical model; robust control; sliding-mode control; state-feedback control method; synchronous rotating reference frame; three-phase PWM rectifier; three-phase voltage source PWM rectifier; voltage control system; Inductance; Integrated circuit modeling; Mathematical model; Power system modeling; Pulse width modulation; Pulse width modulation converters; Rectifiers; Sliding mode control; Telecommunication control; Voltage control;
Conference_Titel :
Power and Energy Engineering Conference, 2009. APPEEC 2009. Asia-Pacific
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-2486-3
Electronic_ISBN :
978-1-4244-2487-0
DOI :
10.1109/APPEEC.2009.4918252
