Bidirectional interaction V2G method and system for electric vehicle and power grid

An electric vehicle, two-way interactive technology, used in electric vehicle charging technology, electric vehicles, information technology support systems, etc., can solve problems such as reducing power grids, traffic congestion, and jeopardizing the safe operation of power grids

Active Publication Date: 2020-12-08
河北东达新能源科技有限公司 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, large-scale electric vehicles go to charging piles to charge and discharge disorderly, which may cause traffic congestion, reduce the economy, stability and reliability of grid operation, and endanger the safe operation of the grid. Therefore, it is necessary to adopt appropriate control strategies to guide electric vehicles. Orderly charging by the user

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  • Bidirectional interaction V2G method and system for electric vehicle and power grid
  • Bidirectional interaction V2G method and system for electric vehicle and power grid
  • Bidirectional interaction V2G method and system for electric vehicle and power grid

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Embodiment Construction

[0037] Embodiments of the technical solutions of the present application will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present application more clearly, and therefore are only examples, rather than limiting the protection scope of the present application.

[0038] It should be noted that, unless otherwise specified, technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which this application belongs.

[0039] The core idea of ​​V2G (Vehicle to Grid) is to use the energy storage of a large number of electric vehicles as a buffer for the grid and renewable energy. When the grid load is too high, the energy storage of electric vehicles is used to feed power to the grid; when the grid load is low, it is used to store the excess power generation of the grid to avoid waste. In this way, ele...

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Abstract

The invention discloses a bidirectional interaction V2G method for an electric vehicle and a power grid. An electric vehicle user submits an electric quantity pre-purchase request to a power grid server according to vehicle conditions, the pre-purchase request comprises a competitive charging electricity price and a charging amount that the user is willing to give, and the competitive charging electricity price can be set to be low. When the power supply quantity of the power grid is increased and the electricity price is decreased, the power grid server starts to analyze the competitive charging electricity price and the charging quantity reported by the electric vehicle, and sends pre-purchase feedback information to the electric vehicle according to competitive charging electricity prices from high to low, so that the electric vehicle is arranged to be charged to the target charging pile position in the specific charging time period. Therefore, users of the electric vehicles can beguided to be charged orderly, traffic jam is avoided, economy, stability and reliability of power grid operation are reduced, and safety operation of the power grid is damaged.

Description

technical field [0001] The present application relates to the technical field of electric vehicles, in particular to a V2G method and system for two-way interaction between electric vehicles and power grids. Background technique [0002] The current power grid is actually not very efficient, because firstly, the cost is high, and secondly, it is easy to cause waste. Part of the problem is the daily fluctuations in load supply and the need for voltage and frequency regulation on the grid. When grid supply exceeds the capacity of baseload power plants, because the grid itself does not have enough energy storage, peaking plants come into operation, sometimes involving spinning reserves. And when grid supply is low, electricity usage is lower than the output of baseload power plants, and any unused energy is wasted. In addition, the voltage and frequency regulation performed on the grid significantly increases the operating costs of the grid. Renewable energy systems (such as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32H02J3/00B60L53/64B60L53/66B60L55/00G06Q10/06G06Q50/06
CPCH02J3/322H02J3/008B60L53/64B60L53/665B60L55/00G06Q10/06312G06Q50/06Y02T10/70Y02T10/7072Y02T90/12Y02T90/16Y02T90/167Y04S30/12Y04S30/14
Inventor 刘志宾刘亚晶
Owner 河北东达新能源科技有限公司
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