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2013 (Vol. 6, Issue: 04)
Article Information:

Asymmetrical Fault Ride through based on Predictive Current Control in Wind Power Generation System

Li Yuren, Zhang Junli, Zhang Zhihui and Fu Longfei
Corresponding Author:  Li Yuren 

Key words:  Asymmetric fault, grid side converter, predictive current control, symmetrical components, wind power generation system, ,
Vol. 6 , (04): 748-753
Submitted Accepted Published
December 3, 2012 January 01, 2013 June 20, 2013
Abstract:

In order to improve the asymmetric fault ride-through capability of wind power generation system, asymmetric voltage and current can be decomposed into positive sequence, negative sequence and zero sequence components respectively via symmetrical component method. The mathematical models of grid side converter in static coordinate system and synchronous rotating coordinate system were given; predictive current control strategy proposed can achieve no static error tracking of current in each switching cycle, can eliminate the negative sequence current in asymmetric fault and wipe off the secondary ripple of the dc side capacitor voltage. The dc side super-capacitor circuit can prevent the dc side from over-voltage. The methods introduced in this study can improve the large grid asymmetric fault ride through capability of wind power generation system. Effectiveness of the proposed methods is verified by the numerical simulations.
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  Cite this Reference:
Li Yuren, Zhang Junli, Zhang Zhihui and Fu Longfei, 2013. Asymmetrical Fault Ride through based on Predictive Current Control in Wind Power Generation System.  Research Journal of Applied Sciences, Engineering and Technology, 6(04): 748-753.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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