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선형계획법에 의한 계통연계형 마이크로그리드의 최적 운용에 관한 연구
박재세(Jae-Sae Park) 대한전기학회 2011 전기학회논문지 Vol.60 No.8
Recently, interests on microgrids have been growing as clean power systems. Microgrids include small scaled distributed generation such as wind and solar power as well as diesel generators as main power sources. To operate a microgrid effectively, optimal scheduling for the microgrid is important. Especially, in the grid-connected mode, power trades between the microgrid and the power grid should be considered in optimal scheduling. In this paper, mathematic models for optimal operation of a microgrid were established based on the linear programming. In particular, the shiftable load was considered in the models to optimize it in microgrid operation. To show feasibility of the proposed models, they were applied to optimal microgrid operation and the results were discussed.
전압형 컨버터와 EDLC의 협조 제어에 의한 직류전기철도 회생에너지 이용률 및 전압 제어 능력 향상
전고운(Go-Woon Jeon),유형준(Hyeong-Jun Yoo),박재세(Jae-Sae Park) 대한전기학회 2015 전기학회논문지 Vol.64 No.1
In the DC electric railway system, the effective use of regenerative break energy is an important issue. Since regenerative break energy causes voltage rise or drop in the system, it should be also solved effectively. To solve the problems, applying electric double layer capacitor (EDLC) or voltage source converter (VSC) to the DC electric railway system has been studying. In this paper, the coordination of EDLC and VSC is proposed to solve the problem effectively with its coordinated control algorithm. The proposed method is tested to show its feasibility using Matlab/Simulink.