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전력소비완화를 위한 전동열차 출발시간 조정에 관한 연구

A Study on Revising Train Departure Time for Reducing Electric Power Consumption

  • 김광태 (한국철도기술연구원 교통물류연구실) ;
  • 김경민 (한국철도기술연구원 교통물류연구실) ;
  • 홍순흠 (한국철도기술연구원 교통물류연구실)
  • 투고 : 2010.11.17
  • 심사 : 2011.02.17
  • 발행 : 2011.04.26

초록

본 연구는 전력소비완화를 위해 전동열차의 출발시간을 조정하는 문제를 다룬다. 전동열차의 운행은 역행, 타행 및 제동의 단계로 구성된다. 역행단계는 전동열차의 운행을 위해 많은 전력량이 필요로 하며, 타행단계는 그 전력을 바탕으로 전력 소비가 거의 없이 운행되는 단계이고, 마지막으로 제동단계는 정차를 위해 감속하는 단계로 전동열차의 관성력으로 인해 운동에너지가 전력으로 바뀌어 회생전력이 발생한다. 회생전력은 동일 전력계통의 운행구간에서 동 시간대에 역행운행 중인 전동열차의 동력자원으로 재사용 될 수 있어 소비전력량을 줄이는 것이 가능하다. 이를 위해 혼합정수계획모형을 제안하고 모형의 실효성을 검증하기 위해 수도권 도시철도 한 구간의 전력데이터를 사용하여 실험하였다.

This paper considers the problem of revising train departure time to reduce electric power consumption of mass rapid transit (MRT) railways. The motion of a train running between stations is divided into three phases: traction, coasting, and deceleration phases. The traction phase requires high electric power to operate MRT railways. In the coasting phase, the train moves stably by consuming little or no power. The deceleration phase is a braking mode and produces some electric power called regenerated brake power owing to inertia force for the train generated In the traction and coasting phases. The regenerative energy can be used by other accelerating trains within a specific range from the train and thereby the power consumptions of train can be reduced. We developed a mixed integer programming model to solve the problem. To validate the suggested model, a computational experiment was conducted using real data from Korea Metropolitan Subway.

키워드

참고문헌

  1. M.S. Han, J.R. Kim, J.W. Kim, K.M. Kim (2009) Energy efficiency improvement on the railway system, Korea Railroad Research Institute.
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  4. J.F. Chen, R.L. Lin, Y.C Liu (2005) Optimization of an MRT trains schedule: reducing maximum traction power by using genetic algorithms, IEEE Transactions on Power Systems, 20(3), pp. 1366-1372. https://doi.org/10.1109/TPWRS.2005.851939
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  6. K.M. Kim, S.M. Oh, M.S. Han (2010) A mathematical approach for reducing the maximum traction energy: the case of Korean MRT trains, Proceedings of the International Multi-Conference of Engineers and Computer Scientists, 3, pp. 2169-2173, Hong Kong, China.
  7. K.T. Kim, K.M. Kim (2010) An optimization for reducing maximum traction power of MRT railways: a case study of Seoul Metro line 4, Proceedings of the Conference of the Korean Institute of Industrial Engineers, Dongguk University, Seoul.

피인용 문헌

  1. A Study on Determining Economical Speed of Diesel Freight Locomotive vol.15, pp.3, 2012, https://doi.org/10.7782/JKSR.2012.15.3.294