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Construction method of matrix type energy storage system based on intelligent storage battery

An energy storage system and battery technology, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve the problems of inflexible capacity increase and decrease, cost and performance contradictions, poor control algorithm flexibility, etc., to achieve flexible capacity increase and decrease, It is convenient for mass production and the system control algorithm is flexible.

Pending Publication Date: 2020-07-14
HUBEI UNIV OF TECH
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Problems solved by technology

[0015] In order to solve the problems of the existing cascaded energy storage system that the capacity increase and decrease are not flexible enough, and the control algorithm is less flexible, and also solve the problem of the contradiction between cost and performance in the battery SOC equalization technology, the present invention proposes a method based on The construction method of the matrix energy storage system of the smart battery mainly includes the following contents: the definition of the concept of the smart battery, and the construction method of the matrix energy storage system on the basis of the defined smart battery

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  • Construction method of matrix type energy storage system based on intelligent storage battery
  • Construction method of matrix type energy storage system based on intelligent storage battery
  • Construction method of matrix type energy storage system based on intelligent storage battery

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Embodiment Construction

[0046] The implementation of the present invention will be described by taking a matrix energy storage system output by an AC voltage source as an example. According to the first method, M smart batteries are connected in series to form a battery pack, and then N sets of battery packs are connected in parallel to form a matrix energy storage system.

[0047] Such as Figure 4 , The smart storage battery of this embodiment is structurally composed of modules such as a storage battery, a power electronic main circuit, a control circuit, a measurement circuit, and a communication circuit. Figure 4 The largest solid-line box in , represents the smart battery, and the dotted-line box inside it represents the electrical part of the smart battery. The interface between the electrical part of the smart battery and the battery is DE, which consists of two power cables. The smart storage battery has external power interface AB and communication interface. The power interface AB is c...

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Abstract

The invention discloses a construction method of a matrix type energy storage system based on an intelligent storage battery. The invention provides a construction method of a matrix type energy storage system based on an intelligent storage battery, and the method mainly comprises the following steps: defining the concept of the intelligent storage battery, and providing the construction method of the matrix type energy storage system on the basis of the defined intelligent storage battery. According to the invention, a new system structure composed of the energy storage system can be established, the capacity of the system structure can be flexibly increased and decreased, SOC regulation and balance can be carried out through the distributed energy storage converter, and a flexible and convenient control algorithm is provided.

Description

technical field [0001] The invention relates to a construction method of an energy storage system composed of storage batteries, supercapacitors and other energy storage elements. Background technique [0002] One of the important technical problems that the electrochemical energy storage industry represented by lithium batteries and lead-carbon batteries needs to solve urgently is to find a more economical and efficient battery SOC (state of charge) equalization method. For this technical problem, non-energy storage professionals can also experience in daily life: Even if the old battery of the TV remote control at home still has a lot of power, it cannot be used together with the newly purchased battery, otherwise the performance of the entire battery pack will be reduced. was greatly dragged down. Currently, battery SOC equalization technologies are divided into two categories: passive equalization and active equalization. Among them, the cost of passive equalization te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
Inventor 王超胡浩班瑜
Owner HUBEI UNIV OF TECH
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