[논문]Power Control and Ground Fault Simulations for a Distribution System with a Fuel Cell Power Plant

Hwang, Jin-Kwon; Choi, Tae-Il

doi:10.5207/jieie.2010.24.7.009

Power Control and Ground Fault Simulations for a Distribution System with a Fuel Cell Power Plant 원문보기

照明·電氣設備學會論文誌 = Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, v.24 no.7, 2010년, pp.9 - 19

Hwang, Jin-Kwon (Fire and Safety Engineering, Woosuk university) , Choi, Tae-Il (Head of Technology Development Team of Smart Grid Office)

Abstract ▼ AI-Helper

Fuel cell (FC) distributed generation (DG) is gradually becoming more attractive to mainstream electricity users as capacity improves and costs decrease. New technologies including inverters are becoming available to provide a uniform standard interconnection of DGs with an electric power system. Some of the operating conflicts and the effect of DG on power quality are addressed and investigated through simulations on a real distribution network with an FC power plant. The results of these simulations have proved load tracking capability following the real and reactive power change of the load and have shown the flow of overcurrent from an FC power plant during the ground fault of a distribution line.

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문제 정의

This study has dealt with the interface of an FC power plant to the distribution network. Operating conflicts and power quality issues were studied to clarify the existing problems.

가설 설정

In Figs. 9 (a) and (b), transients of real and reactive power with the FC power plant 1,000[kW] are similar to the case without an FC power plant. However, the magnitude of transient power at CB decreases slightly compared to the case without an FC power plant.

대상 데이터

The Goyang Branch Office of the Korea Electric Power Corporation (KEPCO), as shown in Fig. 5, is used as the real distribution network for the simulations. In Fig.
An inverter Matlab/Simulink model is designed for connection to the original SCDP model and simulated together using the same solver and step size. The inverter model includes PI controllers, PWM generator, and IGBT inverter.

이론/모형

The performance of an FC power plant is simulated through a real distribution network when it is connected to the utility grid. The simulations are performed using the Hypersim software program, which has been developed for power flow simulations based on the Matlab/Simulink software.

참고문헌 (11)

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상세보기
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C. Wang, M. H. Nehrir, and S. R. Shaw, "Dynamic models and model validation for PEM fuel cells using electrical circuits," IEEE Trans. on Energy Conversion, Vol. 20, No. 2, pp. 442-451, June, 2005.

상세보기
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M. C. Chandorkar, D. M. Divan, and R. Adapa, "Control of Parallel Connected Inverters in Standalone ac Supply Systems," IEEE Trans. on Industry Applications, Vol. 29, No. 1, Jan/Feb., 1993.

상세보기
T. P. O'shea and A. J. Leo, "The Santa Clara Demonstration Project 2-MW Direct Carbonate Fuel Cell Power Plant," 29th IECEC Meeting, pp. 817-822, Monterey, CA, 1994.
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DOI : 10.5207/JIEIE.2010.24.7.009 [무료]
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