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Method, device and system for V2G battery management

A battery management and power grid technology, applied to battery/fuel cell control devices, secondary batteries, circuits, etc., can solve problems such as insufficient functions

Inactive Publication Date: 2015-01-28
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a method, device and system for V2G battery management to solve the problem of insufficient functions of the battery management system applied to V2G technology

Method used

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  • Method, device and system for V2G battery management
  • Method, device and system for V2G battery management
  • Method, device and system for V2G battery management

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0019] According to an embodiment of the present invention, a system embodiment of a system for V2G battery management is provided.

[0020] figure 1 It is a schematic structural diagram of a system for V2G battery management according to an embodiment of the present invention. For the purpose of description, the drawn architecture is only an example of a suitable environment, and does not put any limitation on the scope or function of the application. Nor should the system used for V2G battery management be figure 1 Any component or combination shown has any dependencies or requirements.

[0021] Such as figure 1 As shown, the system for V2G battery management may include: a controllable PWM rectifier 11, a bidirectional DC / DC converter 12, a detector 13, a controller 14 and an equalization circuit 15.

[0022] Among them, the controllable PWM rectifier 11 establishes a communication relationship with the power grid, the controller 14 and the bidirectional DC / DC converter 12 respec...

Embodiment 2

[0036] The embodiment of the present invention also provides a method for V2G battery management. This method can be implemented by a controller, but is not limited to this.

[0037] figure 2 It is a schematic flowchart of a method for V2G battery management according to an embodiment of the present invention. Such as figure 2 As shown, the method includes the following steps:

[0038] Step S202, receiving the control command from the power grid and the detection data from the detector;

[0039] Step S204, processing the detection data according to a preset simulation algorithm to obtain the current state of the battery pack;

[0040] Step S206, controlling the working modes of the controllable PWM rectifier and the bidirectional DC / DC converter according to the control command;

[0041] Step S208: Determine the equalization strategy of the equalization circuit according to the current state, and send the equalization strategy to the equalization circuit.

[0042] The method of the a...

Embodiment 3

[0054] Embodiment 3 of the present invention also provides a device for V2G battery management. The device can realize its function through the controller, but it is not limited to this. It should be noted that the apparatus for V2G battery management in the embodiment of the present invention can be used to execute the method for V2G battery management provided in the embodiment of the present invention, and the method for V2G battery management in the embodiment of the present invention can also be used. It is executed by the device for V2G battery management provided by the embodiment of the present invention.

[0055] image 3 It is a schematic structural diagram of a device for V2G battery management according to an embodiment of the present invention. Such as image 3 As shown, the device includes: a receiving module 31, a processing module 32, a control module 33, a determining module 34, and a sending module 35.

[0056] The receiving module 31 is used to receive contro...

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Abstract

The invention discloses a method, device and system for V2G battery management. The system comprises a controllable PWM rectifier used for receiving the alternating current from a power grid and also used for converting of the alternating current and the direct current, a both-way DC / DC converter used for changing the direction of the current, a detector used for detecting a battery pack to obtain detection data and sending the detection data to a controller, the controller used for receiving a control command from the power grid and the detection data from the detector, controlling the controllable PWM rectifier and the both-way DC / DC converter according to the control command, processing the detection data according to the preset simulation algorithm to obtain the current state of the battery pack, determining the equalization strategy of an equalization circuit according to the current state and sending the equalization strategy to the equalization circuit, and the equalization circuit used for executing the equalization strategy. By means of the method, device and system, the problem that the function of a battery management system is not complete when the battery management system is applied to the V2G technology.

Description

Technical field [0001] The present invention relates to the field of battery management, and in particular, to a method, device and system for V2G battery management. Background technique [0002] Today, with the large-scale promotion of electric vehicles, the number of electric vehicles is gradually increasing. Electric vehicles use batteries as energy storage devices, which can become distributed energy storage units for future smart grids. In practice, electric vehicles are stopped for a large amount of time. Vehicle owners can charge the on-board battery of electric vehicles from the grid during off-peak hours of the grid, and during peak load hours of the grid, the on-board batteries of electric vehicles provide power to the grid to obtain the price difference. Between vehicle owners and system dispatchers, this technology that uses real-time electricity prices and smart meters to achieve smart charge and discharge management is V2G (Vehicle to Grid) technology. [0003] V2G...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32
CPCB60L55/00B60L58/10B60L58/22H01M10/441H02J3/32Y02E60/10Y02T10/70
Inventor 马龙飞张宝群宫成焦然时锐迟忠君陈艳霞
Owner STATE GRID CORP OF CHINA
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