Title :
A control scheme of current-source PWM rectifier with sliding-mode control under unbalanced operation conditions
Author :
Zhu, Xiaorong ; Li, Heming ; Peng, Yonglong ; Shi, Xinchun
Author_Institution :
Sch. of Electr. Eng., North China Electr. Power Univ., Baoding
Abstract :
In this paper, a new voltage unbalance correction scheme for the pulse-width modulation current-source rectifier is presented. By regulating the instantaneous active/reactive power, a constant dc-current without 100 Hz ripple together with sinusoidal input current at controllable power factor are achieved. A current controller based on sliding-mode variable structure control in stationary frame is proposed, which achieves high performance current tracking in the fact of system uncertainties and disturbances. The existence and stability of sliding-mode is ensured by using a proper reaching law. The effectiveness of the proposed scheme is validated by simulation results.
Keywords :
PWM rectifiers; electric current control; variable structure systems; current controller; current-source PWM rectifier; pulse-width modulation current-source rectifier; sliding-mode control; system disturbances; system uncertainties; unbalanced operation conditions; variable structure control; voltage unbalance correction scheme; Control systems; Pulse width modulation; Reactive power; Reactive power control; Rectifiers; Sliding mode control; Space vector pulse width modulation; Stability; Uncertainty; Voltage; PWM; current-source rectifier; sliding-mode; unbalance;
Conference_Titel :
Electric Utility Deregulation and Restructuring and Power Technologies, 2008. DRPT 2008. Third International Conference on
Conference_Location :
Nanjuing
Print_ISBN :
978-7-900714-13-8
Electronic_ISBN :
978-7-900714-13-8
DOI :
10.1109/DRPT.2008.4523760
