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http://dx.doi.org/10.5207/JIEIE.2013.27.7.017

Robust Controller Design for the Regulation of Currents in a Three-phase Load  

Jee, Sujung (Soongsil University, Dept. Electrical Engineering)
Jo, Nam-Hoon (Soongsil University, Dept. Electrical Engineering)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.27, no.7, 2013 , pp. 17-23 More about this Journal
Abstract
The regulation of currents in a three-phase load is an important issue for electric power systems. The most popular conventional method is a decoupling controller that compensates the coupling terms arising from DQ rotating frame transformation. Although the decoupling controller achieves decent performance in the absence of load parameter uncertainties, the variation of parameters causes performance to degrade intolerably. In this paper, we propose to use disturbance observer based controller to improve the control performance in spite of the parameter uncertainties. The computer simulation study validates the effectiveness of the proposed method.
Keywords
Robust controller; DQ transformation; Parameter uncertainties; Disturbance Observer;
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Times Cited By KSCI : 1  (Citation Analysis)
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