Electrochemical energy storage tank temperature control method and device based on ems control

The EMS-controlled electrochemical energy storage cabinet temperature control method solves the problems of disconnect between the control target and actual needs, high energy consumption, and temperature consistency in the liquid-cooled unit temperature control equipment in the electrochemical energy storage system. It achieves precise cell temperature control and energy consumption reduction, and extends equipment life.

CN122178016APending Publication Date: 2026-06-09万物新能(深圳)科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
万物新能(深圳)科技有限公司
Filing Date
2026-05-07
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing liquid-cooled unit temperature control equipment in electrochemical energy storage systems suffers from problems such as a disconnect between control objectives and actual needs, excessive temperature control energy consumption, lack of differentiated control, and neglect of cell temperature consistency.

Method used

An EMS-based electrochemical energy storage cabinet temperature control method is adopted. By acquiring the battery cluster current, the highest and lowest temperatures of individual cells, the working state of the energy storage battery is determined, and differentiated temperature control strategies are executed, including self-circulation mode, cooling and heating operation modes. Temperature difference control is given priority, forming a closed-loop control logic to improve temperature control accuracy and reduce energy consumption.

Benefits of technology

It achieves precise matching between cell temperature control and actual needs, reduces energy consumption, avoids additional energy consumption caused by frequent start-stop, extends equipment life, and ensures the consistency of cell temperature.

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Abstract

This application relates to a method and apparatus for temperature control of an electrochemical energy storage cabinet based on EMS control. The method includes: acquiring battery parameter information of the energy storage cabinet; determining the operating status of the energy storage battery based on the battery cluster current. During battery operation, in the initial temperature equalization stage, a self-circulating operation mode is used to eliminate the temperature difference before cooling. After the temperature difference is satisfied, the cooling requirement is determined based on the highest cell temperature. During the cooling stage, hysteresis control is used to avoid frequent start-stop cycles. Finally, a secondary temperature difference check eliminates new temperature differences generated by cooling. In the battery static state, it is first determined whether the cell needs heating to prevent low-temperature damage. When heating is not required, the cell temperature uniformity is checked and necessary self-circulating temperature equalization control is performed. When the temperature uniformity meets the requirements, it is further determined whether the cell needs cooling to prevent high-temperature damage. This application uses cell temperature as the direct control target, achieving refined, differentiated, and low-energy-consumption cell temperature control.
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