Energy saving strategies in Mass Rapid Transit systems

Abstract

The energy cost accounts for a very high proportion of the operating cost of Mass Rapid Transit (MRT) systems and energy price continues to rise. Therefore, the energy cost of MRT systems will continue to increase. If some energy saving strategies are implemented, operating cost and energy consumption of MRT systems can be greatly reduced.This study analyzes the optimal schedule, regenerative taper voltage adjustment and no-load voltage adjustment of traction substations to determine energy saving strategies. A case study of a Taipei MRT line, under different operating conditions is analyzed.This research adopts commercial railway system software to simulate the operation of the Taipei MRT line. Regenerative braking energy and some other conditions for energy saving strategies are simulated. Energy saving effects are estimated to show the achievement of operational cost savings.

Implementation of Technology Transfer in Mass Rapid Transport (MRT) Project in Malaysia

“…Taipei Mass Rapid Transit (MRT) system started construction 26 years ago and the average daily passengers were more than 190 thousand people. It currently has a comprehensive and expanding MRT network comprising of approximately 121.3 km operational length, 11 lines and 109 MRT stations [19]. Due to the increasing economic growth and increasing population mobility in Taiwan, the demand for transportation increase significantly, resulting in increasing energy use in the transport sector [20] and increasing greenhouse gas emissions and air pollution, seriously damaging the environment [21].These are the driving force for the application of MRT in Taiwan.…”