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Study on Electromagnetic Transient Condition of EMU Passing by Phase-separation with Electric Load in High-speed Railway
School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China
School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China
School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China
School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China
School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China
- 1 School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China
- 2 School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China
- 3 School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China
- 4 School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China
- 5 School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China
Energy and Power Engineering·Volume 05 (2013)·Pages 1061–1068·Published 30 June 2013·DOI10.4236/epe.2013.54B202
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Abstract
Aiming at the complex electromagnetic transient process of EMU passing by phase-separation with electric load in high-speed railway, mechanism of overvoltage caused by switching off, overvoltage caused by switching on and impact current is analyzed systematically in this article. π-type equivalent circuit of feeding section is put forward in the analysis of overvoltage mechanism. Overvoltage and overcurrent model of passing by phase-separation with electric load are also built. Correctness of mechanism was validated by simulation. In addition, the methods to solve the influence on substations, transformers and protection devices in this process are put forward, which provides a new idea on passing by phase-separation with electric load technology.
KeywordsPassing by Phase-separation with Electric LoadElectromagnetic Transient ProcessOvervoltageImpact CurrentTraction Power Supply System
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