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A battery pack adjacent equalization system and its predictive control method

A battery pack and balancing system technology, applied in program control, secondary battery, computer control, etc., can solve the problems of single battery capacity, internal resistance and volt-ampere characteristic curve inconsistency, battery life, usable capacity and other performance decline problems , achieve the effect of realizing stable and efficient control, increasing stability and improving accuracy

Active Publication Date: 2021-11-02
FUZHOU UNIV
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Problems solved by technology

[0003] When batteries are applied to pure electric vehicles or large-scale energy storage systems, it is often necessary to connect multiple battery cells in series and parallel to form a giant battery with high voltage and high energy. Inconsistencies such as capacity, internal resistance, and volt-ampere characteristic curves among individual batteries will result in an exponential decline in performance such as battery life and usable capacity

Method used

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  • A battery pack adjacent equalization system and its predictive control method
  • A battery pack adjacent equalization system and its predictive control method
  • A battery pack adjacent equalization system and its predictive control method

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Embodiment Construction

[0055] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0056] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0057] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combina...

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Abstract

The invention relates to a storage battery group adjacent type equalization system and its predictive control method. Based on the storage battery group adjacent type equalization topology, the main circuit of the storage battery group adjacent type equalization topology, the storage battery group voltage acquisition circuit, the two-way booster Voltage converter current detection module, MPC-FPGA controller and power tube floating drive circuit; and design a predictive balance control strategy according to the energy transfer relationship of the balance system to complete the balance current distribution; finally apply the adaptive control method of the bidirectional boost converter to realize The control process of equalization current tracking.

Description

technical field [0001] The invention relates to the technical field of battery energy storage, in particular to an equalization system adjacent to battery packs and a predictive control method thereof. Background technique [0002] With the increasing consumption of fossil energy and the urgency of solving environmental pollution problems, it is urgent to develop a clean and efficient sustainable energy. At present, batteries, especially lithium-ion batteries, have high energy density, low self-discharge rate and high single voltage characteristics, and are increasingly used in industry and life, such as mobile devices, electric vehicles, power station energy storage systems, etc. , so it has important research value. [0003] When batteries are applied to pure electric vehicles or large-scale energy storage systems, it is often necessary to connect multiple battery cells in series and parallel to form a giant battery with high voltage and high energy. Inconsistencies such...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/042H01M10/42H02M3/158
CPCG05B19/042H01M10/425H01M2010/4271H02M3/158Y02E60/10
Inventor 王亚雄钟浩陈锦洲陈家瑄
Owner FUZHOU UNIV
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