Title :
A control strategy of rectifier circuit for double-fed wind power system
Author :
Zhang Hai-Guang ; Shen Yan-xia ; Ji Zhi-cheng ; Zhou Wen-jing
Author_Institution :
Inst. of Electr. Autom., Jiangnan Univ., Wuxi, China
Abstract :
By analyzing the principles of One-Cycle Control (OCC) and PWM bridge rectifier circuit, OCC is applied to bridge rectifier circuit and a control strategy of bridge rectifier employing OCC is proposed. Taking the unit power factor as the control objective, the relationship between the duty ratio of IGBT and control voltage is deduced. In order to adapt the time-varying of output voltage error and improve the system robustness, a fuzzy PID controller is used in the control process. Finally the circuit model is established using Matlab. Simulation results indicate that this rectifier control strategy can achieve the stability of output voltage quickly and validate the effectiveness of power factor correction.
Keywords :
PWM rectifiers; bridge circuits; fuzzy control; insulated gate bipolar transistors; power factor correction; power generation control; three-term control; time-varying systems; voltage control; wind power plants; IGBT; Matlab; PWM bridge rectifier circuit; control strategy; control voltage; double-fed wind power system; duty ratio; fuzzy PID controller; one-cycle control principles; output voltage stability; power factor correction; time varying system; unit power factor; Bridge circuits; Insulated gate bipolar transistors; Niobium; Pulse width modulation; Reactive power; Rectifiers; Voltage control; Fuzzy Control; One-Cycle Control; Power Factor Correction; Rectifier Circuit;
Conference_Titel :
Control Conference (CCC), 2011 30th Chinese
Conference_Location :
Yantai
Print_ISBN :
978-1-4577-0677-6
Electronic_ISBN :
1934-1768
