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Instantaneous Voltage Sag Corrector Using Series Compensator in Transfer Power Line Generator  

Lee, Sang-Hoon ((주)포스콘 기술연구소)
Min, Wan-Ki (조선이공대학 전기전자과)
Jeon, Byeong-Seok (충북대학교 전기공학과)
Lee, Dae-Jong (충북대학교 전기공학과)
Hong, Hyun-Mun (통일부 행정사무관)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.55, no.1, 2006 , pp. 21-25 More about this Journal
Abstract
This paper describes the novel control techniques design of VSC(Voltage Sag Corrector) for the purpose of power line quality enhancement. A fast detecting technique of voltage sag is implemented through the detection of instantaneous value on synchronous rotating do-reference frame. The first order digital filter is added in the detection algorithm to protect the insensitive characteristics against the noise. The relationship between the total detection time and cut-off frequency of the filter is described. The size of the capacitor bank used as the energy storage element is designed from the point of view of input/output energy with circuit analysis. Finally, the validity of the proposed scheme is proven through the simulated results.
Keywords
VSC(Voltage Sag Corrector); Power Quality; Faults; Series Compensation; PSCAD/EMTDC;
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  • Reference
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