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Research of Optimal Design of Power System in High Speed Railway

Author: XiongYuMin
Tutor: ZhangBuHan
School: Huazhong University of Science and Technology
Course: Proceedings of the
Keywords: High-speed rail Through line Energy saving and environmental protection Optimal design
CLC: U223
Type: Master's thesis
Year: 2011
Downloads: 50
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Abstract

As a booming high-speed rail transport system, fast, comfortable service is received widespread attention and recognition, energy saving and environmental protection issues have gradually become an important aspect of the relationship to the country's economic development. How to do high-speed rail in the environment to promote energy conservation, energy loss reduction and purpose in order to achieve faster and better services for the development of the national economy is a major issue today. In the high-speed railway construction, must adhere to energy saving and industrial development combined with the depth, improve resource utilization, reduce energy consumption, and the business and social benefits of the optimization requirements. From a power perspective, the high-speed railway and electricity systems are inseparable, the pros and cons of the distribution system power design of high-speed railway has become an important factor to impact energy-saving high-speed rail. More comprehensive through the optimization of the design of high-speed railway power to improve the safety of the railway system, the reliability and economy to provide a series of possible strategies, development of high-speed rail transport system will have a profound impact, and the higher research value and practical significance. This selection of the high-speed railway Hefei - Wuhan section as the research sample, designed for high-speed railway power status of research and analysis, summarizes some irrational aspects of the design of this high-speed railway power appears mainly include: (1) high-speed railway in choice of transformer and cable cross-section to a certain lack of standards, many sections still in the stage of choice based on empirical values, and in order to prevent overload phenomenon, usually the capacity of the transformer and the cable section select the larger, affecting the economy. (2) reactive power compensation is often not meet the requirements of the power connection point on the power factor as well as the end of the line voltage offset endanger the grid power quality and brought huge economic losses for the railway system itself. Departure from the inadequacies found binding PSCAD / EMTDC simulation software optimization, which simulation software has played a good role in help. Considered fully in the selection of research transformer capacity the combined transformer overload capacity as well as the use of energy storage devices, through investment comparison transformer annual value obtained with the most economical transformer options. Selected cable section, the economy as a starting point, the first form of economic comparison preliminary to determine the cross-sectional size of the options and then check the voltage drop and the thermal stability and mechanical strength finalized. Mainly concentrated dispersion compensation reactive power compensation as the starting point, take full account of the compensation package through lines and stations in a variety of situations. And imitation modeling, dynamic reactive power compensation device SVC and STATCOM for compensation of the through-line, observed compensation effect. Summarizes the advantages and disadvantages of the various programs, and get through online is the most suitable for the concentrated dispersion compensation conclusions. In this paper, the optimization has been the recognition of the project commissioned by side, provide a viable basis for the improvement of energy efficiency and power quality control for the economy of the high-speed railway, has a certain practical significance.

Research of Optimal Design of Power System in High Speed Railway

Abstract

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