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Pure electric bus charging power distribution and optimization method based on column generation framework

A technology of electric bus and charging power, which is applied in the direction of electric vehicle charging technology, electric vehicles, charging stations, etc.

Active Publication Date: 2020-10-30
DALIAN UNIV OF TECH +1
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Problems solved by technology

[0005] The invention solves the charging problem of large-scale pure electric buses

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  • Pure electric bus charging power distribution and optimization method based on column generation framework
  • Pure electric bus charging power distribution and optimization method based on column generation framework
  • Pure electric bus charging power distribution and optimization method based on column generation framework

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Embodiment Construction

[0084] The specific embodiment of the present invention will be described in detail below in conjunction with examples, and the implementation effect of the invention will be simulated.

[0085] The invention adopts the column generation framework to solve the optimization problem of the electric bus charging power strategy. Column generation is an effective and efficient approach that has been used to solve many real-life large-scale optimization problems where the number of decision variables is too large to be explicitly enumerated. The detailed flow chart of the model in the present invention is as figure 1 shown. First, a feasible solution that satisfies all charging conditions is obtained through heuristic method initialization, and it is provided to the main problem of the model; then, the dual variables of each constraint are obtained by solving the main problem of the relaxed model, and input into independent sub-problems, Make each electric bus generate a negative ...

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Abstract

The invention relates to a pure electric bus charging power distribution and optimization method based on a column generation framework. Under comprehensive consideration of a series of limiting conditions such as electricity price fluctuation in different time periods and the electric quantity demand of the electric bus, the operation time, the number of the charging continuous charging guns andthe total power of the charging stations, the minimum daily charging cost of the charging stations is taken as the optimal target, and an electric bus charging power distribution strategy and optimization model based on a column generation framework is constructed. The resource limitation of the charging station is clearly considered in the main problem, and the operation demand, the charging demand and the charging power continuity control of the electric bus are considered in the sub-problems. The model is extremely high in calculation efficiency; the corresponding optimal charging strategycan be rapidly formulated for the operation scheme of the large-scale electric bus, objective conditions such as dynamic electricity price and system operation resource limitation in different periodsare considered while the charging requirement of the electric bus is met, and a scientific basis is provided for the charging operation management strategy of the charging station.

Description

technical field [0001] The present invention belongs to the technical field of urban public transport operation management, relates to electric bus charging power strategy and the field of electric power system, ITS intelligent transport system and operational research algorithm optimization, especially relates to the optimization of linear integer programming and column generation algorithm, specifically Charging power allocation and optimization method for pure electric buses based on column generation framework. Background technique [0002] As a new energy public transportation tool, electric buses play an important role in energy conservation and emission reduction, and in improving the utilization rate of urban electric energy. In recent years, with the rapid development of electric buses, a series of operational management problems have become increasingly prominent. First of all, because the current charging strategy does not formulate corresponding charging strateg...

Claims

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Application Information

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IPC IPC(8): B60L53/64H02J3/32
CPCB60L53/64H02J3/32Y02T10/70Y02T10/7072Y02T90/12
Inventor 刘锴高虹李成彭新潮李晓菲
Owner DALIAN UNIV OF TECH
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