DC 1500V용 전철변전소의 회생전력량 분석 = Regenerative energy analysis in DC 1500V electric traction substations

다국어 초록 (Multilingual Abstract)

In DC 1500V electric traction substations, diode rectifiers are commonly used to supply stable DC power with electric train sets. However, it operates in the first quadrant of the voltage-current plane and thus needs regenerative inverters which transfer the surplus regenerative power caused by regenerative braking of electric train sets into the grid. In order to select the proper capacity and installation position of regenerative inverter, it needs to investigate the consumed and regenerative energy of the electric traction substations in advance.
This paper presents an analysis of regenerative energy in two substations operating in Seoul line 2 and Kwangju line 1. DC line voltage and feeder currents are measured for a day to calculate consumed and regenerative power for four feeders. We calculated an amount of regenerative energy consumed in other feeders and estimated the cost reduction in energy consumption due to the reuse of regenerative energy.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. 회생전력량
• 3. 변전소 측정
• 4. 회생전력량 분석
• 5. 결론
• 참고문헌
• 감사의 글