Signaling System for Saving Energy in Mass Rapid Transit Systems

• Main Authors: Bwo-Ren Ke, 柯博仁
• Other Authors: Nanming Chen
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/85930005424898958378

博士 === 國立臺灣科技大學 === 電機工程系 === 94 === This dissertation presents an approach for assisting the design of fixed-block signaling system of mass rapid transit systems by optimizing the block-layout and running speed codes of signaling blocks between neighboring stations. The objective is to achieve minimum energy consumption while maintaining maximum train capacity. Simultaneously, the performance index is used to determine strategies of train operation for energy saving under normal operation. First, this approach pre-adjusts the running speed limit of trains to avoid over-speeding on an alignment. At the same time, it also shaves off unnecessary speed change to improve passenger comfort. The concept of equi-block signaling system is used to design the block-layout of signaling systems. Second, considering the effect of gradients and limits of minimum headway of automatic train operation system and train average speed, this dissertation apply the genetic algorithm to determine the shortest length, speed codes and positions of signaling blocks. Third, running dynamics of a single train between neighboring stations is simulated based on a signaling system of mass rapid transit system with different aspects, positions and number of signaling blocks through acceleration and jerk limits. Fourth, a heuristic search is used to seek out the combination of train running speed code of each signaling block for energy saving. Dynamic programming is then used to search the optimal combination of train running speed code of each signaling block for saving energy and reducing the peak power on different aspects and number of signaling blocks. Finally, the approach of performance index is presented to determine strategies of train operation under normal operation for energy saving, based on the design of block-layout and running speed codes under maximum train capacity. This research is expected to be a reference for estimating and designing the signaling system of mass rapid transit system.