Energy storage capacity allocation method considering schedulability of electric vehicle charging station

A technology of electric vehicles and energy storage capacity, applied in the direction of AC network load balancing, etc., can solve problems such as lack of modeling methods

Active Publication Date: 2016-12-21
万马联合新能源投资有限公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Utilizing the dispatchability of electric vehicle charging stations is an important development direction of power dispatching in the field of electric vehicle charging in the future, but there is still a lack of modeling methods for configuring the energy storage capacity of charging stations according to the confidence level of dispatchability

Method used

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  • Energy storage capacity allocation method considering schedulability of electric vehicle charging station
  • Energy storage capacity allocation method considering schedulability of electric vehicle charging station
  • Energy storage capacity allocation method considering schedulability of electric vehicle charging station

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Embodiment Construction

[0060] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0061] Such as figure 1 The described embodiment is a flow chart of an energy storage capacity configuration method considering the dispatchability of an electric vehicle charging station. The following uses an electric vehicle charging station with a maximum charging power of 60MW to carry out an example test. figure 2 It is the schematic diagram of the 1h continuous prediction model of the charging station in advance, image 3 is the charging power characteristic of the charging station on a certain day, Figure 4 is the non-parametric estimation of the cumulative probability distribution of the power balance of the charging station. Using the algorithm of the present invention to plan an energy storage system configuration scheme for the electric vehicle charging station includes the following steps:

[0062] Step 100: Use the continuous ...

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Abstract

The invention discloses an energy storage capacity allocation method considering schedulability of an electric vehicle charging station, and can give a corresponding energy storage capacity allocation scheme according to a confidence level of the schedulability of the electric vehicle charging station. In order to compromise the schedulability and energy storage investment cost of the electric vehicle charging station, a method for defining and calculating the charging power schedulability of the electric vehicle charging station is proposed, consumed stored energy-electric vehicle charging station combined system dispatching scheme of an energy storage system is proposed on the basis of charging power forecast data of the charging station, and an optimal power and capacity allocation scheme of the energy storage system is acquired. By the method, minimum investment cost and minimum charge-discharge loss cost of the energy storage system are selected as target functions, a constraint condition comprises residual lifetime of the energy storage system and the confidence level of the power schedulability of the charging station, and a model is solved by a genetic algorithm according to model characteristic. The method can be applied to the field of allocation of the energy storage system of the electric vehicle charging station.

Description

technical field [0001] The invention relates to the technical field of configuration of an energy storage system for an electric vehicle charging station, in particular to an energy storage capacity configuration method that saves construction costs and considers the dispatchability of an electric vehicle charging station. Background technique [0002] With the increasing pressure on energy and environmental protection and the rapid development of renewable energy technologies, the development of new energy vehicles, especially pure electric vehicles, has become the general trend. As a large load in the future power grid, the electric vehicle power battery with large-scale energy storage capacity is bound to play a pivotal role in the process of realizing the smart grid. Correspondingly, with the extensive development of electric vehicles in countries around the world, the planning and construction of charging infrastructure has attracted the attention of governments. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32
CPCH02J3/32
Inventor 何若虚
Owner 万马联合新能源投资有限公司
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