논문 해외 국제전문학술지(SCI급) Peak power reduction and energy efficiency improvement with the superconducting flywheel energy storage in electric railway system
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2013-11
- 저자명 H. Lee, S. Jung, Y. Cho, D. Yoon, G. Jang
- 학술지명 ScienceDirect
- 발행처명 Physica C
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 5
홈페이지논문 초록 (Abstract)
This paper proposes an application of the 100 kWh superconducting flywheel energy storage systems to reduce the peak power of the electric railway system. The electric railway systems have high-power characteristics and large amount of regenerative energy during vehicles’ braking. The high-power characteristic makes operating cost high as the system should guarantee the secure capacity of electrical equipment and the low utilization rate of regenerative energy limits the significant energy efficiency improvement. In this paper, it had been proved that the peak power reduction and energy efficiency improvement can be achieved by using 100 kWh superconducting flywheel energy storage systems with the optimally controlled charging or discharging operations. Also, economic benefits had been assessed.