Electrified railway traction power supply scheme optimization design method
A technology for electrified railways and traction power supply, applied in computing, instruments, data processing applications, etc., can solve problems such as the lack of automatic solution optimization capabilities, achieve the minimum average power consumption, reduce construction and operation costs, and enhance adaptability Effect
Active Publication Date: 2015-08-12
SOUTHWEST JIAOTONG UNIV
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However, the above-mentioned commercial software core algorithm can only calculate and analyze a given design scheme, and also does not have the ability to automatically optimize the scheme
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[0031] Taking the design of traction power supply system using autotransformer (AT) power supply as an example, N TS ,N AT ,N SP , N KB Respectively, the number of traction substations, AT substations, partition substations and switch substations that need to be set up on the whole line, P TSi ,P SPj ,P ATk ,P KBt They are the position variables of the traction substation, AT station, partition station and switch station respectively, A, B, C and D are the value ranges corresponding to the optional locations, T is the system operation period (the unit can be minutes, hours or day etc.) S i Calculate capacity for each traction substation, P ij is the power output of all substations at different times, K represents the number of online trains, P Lkj is the active power demand of each locomotive at different times, U Lk is the electric locomotive terminal catenary-to-ground voltage, U L min and U L max Respectively, the traction characteristics of the locomotive requir...
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The invention discloses an electrified railway traction power supply scheme optimization design method. The number and positions of a traction substation, a section post, an AT post, an opening and closing post and other power supply facilities and the capacity of a traction transformer are set as optimization variables, constraint conditions are set according to the design performance and requirements, an optimization objective function (such as the whole-line minimum power supply capacity (Ssub), the minimum average power consumption (Ploss), the minimum project cost (M), and the like) is determined, and an electrified railway traction power supply system design mathematical model conforming to optimal objective or multi-objective satisfactory optimization is established. All possible traction power supply schemes are automatically compared and selected in the limited domain of the constraint conditions by an intelligent optimization algorithm to determine an optimal or satisfactory scheme conforming to the optimization objective. By adopting the method of the invention, the number and positions of traction power supply facilities, the transformer capacity and other design parameters can be determined automatically, efficiently and accurately, the level of refinement of traction power supply design can be improved, and the traction power supply system construction and operation costs can be reduced.
Description
technical field [0001] The invention relates to an optimal design method for an electrified railway traction power supply scheme. Background technique [0002] As the only power supply for electrified railways, the traction power supply system should not only provide reliable power supply to electric locomotives, but also pursue high-quality and efficient operation, which puts forward higher requirements for the refined design of traction power supply schemes. Traditional scheme design relies too much on the professional experience of designers, the determination of the number and location of main power supply facilities is easily affected by subjective factors, and the comparison and selection of limited schemes also lacks the ability of global optimization, making it difficult to ensure the optimal design capacity. In recent years, domestic railway design departments have successively introduced internationally recognized design software for traction power supply systems, ...
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IPC IPC(8): G06Q10/04G06Q50/06
Inventor 陈民武许臣友孙小凯黄文勋李剑智慧张令翟延涛蒋汶兵王旭光刘洋崔召华罗杰
Owner SOUTHWEST JIAOTONG UNIV