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| Received:June 27, 2011Revised:September 10, 2011 |
| 基金项目:This work was supported by the National Key Technology R&D Program (No. 2009BAG12A08), the Research Foundation of the Ministry of Railways and Tsinghua University (RFMOR&THU) (Nos. 2009X003, J2009Z028), and the Research Foundation of Beijing National Railway Research Foundation of Beijing National Railway Research and Design Institute of Signal and Communication. |
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| A minimal-energy driving strategy for high-speed electric train |
| Liang LI,Wei DONG,Yindong JI,Zengke ZHANG |
| (Department of Automation, Tsinghua University; National Laboratory for Information Science and Technology, Tsinghua University) |
| Abstract: |
| This paper investigates the minimal-energy driving problem for high-speed electric train, and then proposes a three-stage optimal strategy. First, a switching system model is introduced to describe the new dynamics in high-speed electric train, which considers the extended range of speed, the energy efficiency and the regenerative brake. Based on the new model, the optimal driving strategy with minimal-energy consumption is studied, and the problem is boiled down to optimal control for switching systems. Using a numerical algorithm, a three-stage driving strategy is concluded, in which the traditional quasi-coasting stage is discarded and the maximal traction and brake are not suitable anymore. Finally, a case study on CRH is illustrated. |
| Key words: Optimal driving Minimal-energy driving High-speed electric train Switching systems |
