DocumentCode :
482490
Title :
A new direct power control strategy for grid connected voltage source converters
Author :
Zhi, Dawei ; Xu, Lie ; Williams, Barry W. ; Yao, Liangzhong ; Bazargan, Masoud
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Strathclyde, Glasgow
fYear :
2008
fDate :
17-20 Oct. 2008
Firstpage :
1157
Lastpage :
1162
Abstract :
This paper presents a new predictive direct power control (DPC) strategy for three-phase grid connected voltage source converters with constant switching frequency. Source and converter flux are introduced to develop the power flow model of such system. Based on the predictive power model, the output converter voltage vector in each PWM period can be calculated directly. The detailed power variations are examined under different voltage vector sequences. Constant switching frequency and excellent dynamic performance are achieved. Both simulation and experimental results are provided to demonstrate the effectiveness and robustness of the proposed control strategy.
Keywords :
PWM power convertors; power control; power grids; PWM converter voltage vector; constant switching frequency; direct power control strategy; predictive power model; three-phase grid connected voltage source converters; Load flow; Power control; Power system modeling; Predictive models; Pulse width modulation; Pulse width modulation converters; Robust control; Switching converters; Switching frequency; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3826-6
Electronic_ISBN :
978-7-5062-9221-4
Type :
conf
Filename :
4770894
Link To Document :
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