DocumentCode :
2739441
Title :
Study of small wind power system´s grid-connected inverter based on improved SPWM current control algorithm
Author :
Ping, Yang ; Xiaosheng, Zeng ; Yuewu, Wang
Author_Institution :
Guangdong Key Lab. of Clean Energy Technol., South China Univ. of Technol., Guangzhou, China
fYear :
2011
fDate :
8-10 June 2011
Firstpage :
1
Lastpage :
4
Abstract :
It is important to improve the control algorithm of the grid-connected inverter for the optimization of the Small Wind Power System. There are disadvantages of the traditional SPWM current tracking control algorithm because the output current of the inverter is interfered by the network voltage. The improved SPWM current tracking control algorithm adds the feed forward loop of the network voltage to the original closed loop control system, which could effectively suppress the interference of the network voltage and guarantee the quality of the grid-connected current. In this paper, the advantages and disadvantages of several kinds of grid-connected current tracking control algorithms are compared. And the mathematical model of the closed loop control system is built. Then the paper analyzes the network voltage feed forward control algorithm. Simulation experiments are done based on the improved algorithm. The results verify the method is effective.
Keywords :
PWM invertors; electric current control; power grids; power system control; wind power plants; SPWM current control algorithm; closed loop control system; current tracking control algorithm; feed forward loop; mathematical model; network voltage feed forward control algorithm; small wind power system optimization; small wind power system´s grid-connected inverter; Integrated circuit modeling; Inverters; Mathematical model; Silicon carbide; Transfer functions; Voltage control; Closed Loop Control; Feed forward Loop; Grid-connected Inverter; Improved SPWM Current Tracking Control; Small Wind Power System;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics Systems and Applications (PESA), 2011 4th International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4577-0205-1
Type :
conf
DOI :
10.1109/PESA.2011.5982951
Filename :
5982951
Link To Document :
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