Browse > Article

Inrush Current Control of Matching Transformer for Dynamic Voltage Restorer  

Seo, Il-Dong (숭실대 전기공학과)
Jeon, Hee-Jong (숭실대 전기공학부)
Shon, Jin-Geun (경원전문대학 전기제어시스템과)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.11, no.4, 2006 , pp. 340-348 More about this Journal
Abstract
This paper proposes an inrush current control technique of matching transformer for configuration of dynamic voltage restorer(DVR). The DVR system consist of PWM inverter to inject arbitrary voltage, LC low pass filter as harmonic eliminator and matching transformer for isolation. However, the matching transformer has an excess of inrush current by magnetic flux saturation in the core. Due to this inrush current, the rating of matching transformers is double for needed nominal rating for protection of DVR. Therefore, in this paper, the modeling method of magnetic flux saturation is used to analyze a magnitude of inrush current, and additional current controller is used for PWM inverter output regulation. Simulation and experimental results are provided to demonstrate the validity of the proposed control method.
Keywords
Dynamic voltage restorer(DVR); matching transformer; magnetic flux saturation; inrush current;
Citations & Related Records
연도 인용수 순위
  • Reference
1 P. Wang, N. Jenkins, and M. H. J. Bollen, 'Experimental investigation of voltage sag mitigation by an advanced static var compensator,' IEEE Trans.l Power Delivery, vol. 13, pp. 1461-1467, Oct. 1998   DOI   ScienceOn
2 R. Buxton, 'Protection from voltage dips with the dynamic voltage restorer,' in IEE Half Day Colloquium on Dynamic Voltage Restorer, London, U.K., 1998, Dig. No. 1998/189
3 김희중 외, '전력품질 향상기기의 실증시험을 위한 2 MVA SSFG(Sag Swell Flicker Generator) 개발,' 전력전자학회 논문지, 1229-2214, 제10권 제6호, pp. 626-633. 2005
4 손진근 외, '개선된 전압 Sag 및 위상 검출기법에 의한 동적전압보상시스템,' 전력전자학술대회 논문집, pp. 185-188. 2005. 7
5 손진근 외, 'THD를 고려한 DVR 시스템의 LC필터 설계,' 전력전자학술대회 논문집, pp. 490-493. 2005. 7
6 D. Mahinda Vilathgamuwa, H. M. Wijekoon, 'Control and Analysis of a New Dynamic Voltage Restorer Circuit Topology for Mitigating Long Duration Voltage Sags,' Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the , Volume 2, 13-18 Oct. 2002, pp. 1105-1112
7 Trutt, F. C., Erdelyi, E. A., and Hopkins, R. E., 'Representation of the Magnetization Characteristic of DC Machines for Computer Use,' IEEE Trans. on Power Apparatus and Systems, Vol. 87, No. 3, 1968, pp.665-669   DOI   ScienceOn
8 Ying-Yu, Shin-Liang Jung, 'Full Control of a PWM DC-AC Converter for AC Voltage Regulation,' IEEE Transactions on Aerospace and Electronic System, Vol. 34, No. 4, October 1998, pp. 1218-1226   DOI   ScienceOn
9 S. Nilsson, 'Special application considerations for custom power systems,' in Proc. IEEE PES Winter Meeting, New York, Jan/Feb. 31/04, 1999, pp. 1127-1130
10 M. F. Alves, T. N. Ribeiro, 'Voltage sag: an overview of IEC and IEEE standards and application criteria,' Proceedings of IEEE Conference on Transmission and Distribution, 1999, Vol. 2, pp. 585-589