무효전력 보상 용량 증대 및 DC 링크 전압 저감을위한 SVC 결합형 UPQC
SVC coupled UPQC for reactive power compensation capacity increase and DC link voltage reduction
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
본 논문에서는 UPQC 시스템과 SVC를 결합한 새로운 형태의 보상장치를 제안하고자 한다. 기존의 UPQC는 직렬형 인버터, 병렬형 인버터, DC 링크로 구성되어 있어있으며 우수한 전력품질 보상 성능을 보이지만 높은 인버터 정격을 요구한다. 제안된 방식은 직렬형 인버터, 병렬형 인버터와 DC 링크 그리고 병렬형 인버터의 출력단에 결합된 SVC로 구성되어 있으며,기존 UPQC에 비해 넓은 무효전력 보상 범위와 낮은 DC 링크 전압의 장점을 가지고 있다. 또한, SVC가 결합된 새로운UPQC의 구성은 Matlab 시뮬레이션을 통해 성능을 검증하였다.
Abstract
This paper propose a new form of UPQC (Unified Power Quality Compensator) to compensate the current and voltagequality problems of nonlinear loads. The conventional UPQC system consists of a series inverter, a parallel inverter, anda common DC link. A new type of UPQC proposed is a parallel compensator with SVC (Static Var Compensator) addedto compensate for the wide compensation range and low DC link voltage. The parallel inverter compensates the reactivepower generated by the nonlinear load, and the series inverter compensates the sag and swell generated at the powersupply side.
참고문헌 (6)
- V. Khadkikar, "Enhancing Electric Power Quality Using UPQC: A Comprehensive Overview", IEEE Transactions on Power Electronics, 27(5), pp.2284~2297 (2012), Institute of Electrical and Electronics Engineers (IEEE)[DOI]
- M. Basu, "Investigation on the performance of UPQC-Q for voltage sag mitigation and power quality improvement at a critical load point", IET Generation, Transmission & Distribution, 2(3), pp.414~423 (2008), Institution of Engineering and Technology (IET)[DOI]
- L. Gyugyi, "Power electronics in electric utilities: static VAR compensators", Proceedings of the IEEE, 76(4), pp.483~494 (1988), Institute of Electrical and Electronics Engineers (IEEE)[DOI]
- Ganesh Kumar Venayagamoorthy, "Dual Function Neuron Based External Controller for a Static Var Compensator", IEEE Transactions on power delivery, 23(2) (2008)[DOI]
- Hamid Reza Mohammadi, "Multiconverter Unified Power-Quality Conditioning System: MC-UPQC", IEEE Transactions on Power Delivery, 24(3), pp.1679~1686 (2009), Institute of Electrical and Electronics Engineers (IEEE)[DOI]
- M. Kesler, "Synchronous-Reference-Frame-Based Control Method for UPQC Under Unbalanced and Distorted Load Conditions", IEEE Transactions on Industrial Electronics, 58(9), pp.3967~3975 (2011), Institute of Electrical and Electronics Engineers (IEEE)[DOI]