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Voltage Sag-Swell Generator for Power Quality Disturbance of Dynamic UPS System  

Byeon W. Y. (KT부산전산국 시스템운용과)
Kim J. W. (부경대 대학원 전기공학과)
Lee K. S. (부경대 대학원 전기공학과)
Nho E. C. (부경대 공대 전기제어계측공학부)
Kim I. D. (부경대 공대 전기제어계측공학부)
Chun T. W. (울산대 전기전자정보시스템공학부)
Kim H. G. (경북대 전자전기공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.10, no.1, 2005 , pp. 102-107 More about this Journal
Abstract
This paper describes a new voltage sag-swell generator for the test of custom power devices such as UPS, DVR, DSTATCOM, SSTS, etc. Voltage sag, swell, outage, and unbalance generation mechanism and the operating principle are described for the proposed scheme. The usefulness of the scheme is proved through simulations and experiments. The proposed scheme has good features of simple structure, high reliability, wide range of sag and swell variation, and easy control. Especially, the scheme can provide a cost-effective implementation of a power quality disturbance generator. Therefore, it is expected that the scheme will contribute to the self implementation of the system with low cost in laboratory.
Keywords
Voltage sag; swell; outage; unbalance;
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