Cluster type energy storage system

Abstract

The invention provides a cluster type energy storage system. The cluster type energy storage system comprises a control module, a battery cabin module and an intelligent box transformer substation module, wherein the intelligent box transformer substation module comprises a PCS; the control module comprises a controller, an air conditioner host and a fire-fighting host; the battery cabin module comprises a plurality of battery cabins connected in parallel; each battery cabin further comprises a battery module, a detection unit and a BMS connected with the battery module and the controller; the controller is used for generating a first control instruction according to battery parameters of the battery module acquired by the BMS, and sending the first control instruction to a PCS so as to enable the PCS to perform charging and discharging management on the battery module according to the first control instruction; and the air conditioner host and the fire-fighting host are used for managing the environment in the battery cabins according to the detection information, collected by a detection unit, of the battery cabins. According to the cluster type energy storage system, the cost of the energy storage system is reduced, the charge and discharge management, temperature control effect and fire protection effect of the energy storage system are ensured, and the cluster type energy storage system has good practical value.

Description

technical field [0001] The invention relates to the technical field of energy storage, in particular to a clustered energy storage system. Background technique [0002] Large-scale energy storage systems will play an indispensable role in the future power system due to the needs of large-scale access to the power grid of new energy, power peak shaving and valley filling, participation in voltage regulation and frequency regulation, and development of micro-grids. Existing large-scale energy storage systems mainly include: centralized energy storage systems and string energy storage systems; among them, the centralized energy storage system mainly consists of multiple single cells connected in series and parallel to form a system, any single cell The failure of the battery cells will affect the operation of the entire energy storage system; the string energy storage system is formed by connecting multiple single-cluster energy storage systems in parallel, each single-cluster ...

AI Technical Summary

Problems solved by technology

Existing large-scale energy storage systems mainly include: centralized energy storage systems and string energy storage systems; among them, the centralized energy storage system mainly consists of multiple single cells connected in series and parallel to form a system, any single cell The failure of the battery cells will affect the operation of the entire energy storage system; the string energy storage system is formed by connecting multiple single-cluster energy storage systems in parallel, each single-cluster energy storage system includes multiple battery packs, in order to ensure that each For the individual charge and discharge management of battery packs, each battery pack is equipped with a corresponding optimizer, and each single-cluster energy storage system is equipped with a controller. Therefore, in the actual assembly process of the energy storage system, complex adaptation The work reduces the assembly efficiency, and increases the cost of the energy storage system, which is not easy to promote and implement in practical applications

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