Control method applied to energy storage thermal management system

By adopting a refrigerant circulation system and an independent coolant circulation system in the energy storage thermal management system, multiple cooling modes are provided, which solves the problems of large volume and heat dissipation requirements of traditional cooling methods and achieves efficient and stable cooling effects.

CN118943567BActive Publication Date: 2025-09-23NANJING TICA AIR CONDITIONING CO LTD
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Patent Information

Application Number
CN202410986719.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-09-23
Estimated Expiration
2044-07-23

AI Technical Summary

Technical Problem

Traditional air-cooling and liquid-cooling systems occupy a large volume in energy storage products, resulting in a larger floor space required for installation and use. In addition, existing cooling methods cannot meet the heat dissipation requirements of high-energy-density battery clusters and energy storage inverters.

Method used

A refrigerant circulation system and two independent coolant circulation systems are used to cool the battery cluster and energy storage inverter respectively, providing multiple operating modes such as natural cooling of a single battery cluster, natural cooling of the battery cluster and energy storage inverter at the same time, forced cooling of a single battery cluster, forced cooling of the battery cluster and natural cooling of the energy storage inverter, and forced cooling of the battery cluster and energy storage inverter. Energy efficiency is improved through pre-cooling with natural cold sources.

Benefits of technology

It achieves efficient operation of the cooling system, reduces energy consumption of the temperature control system, simplifies system layout, and improves system stability and reliability.

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Abstract

The embodiments of the present disclosure disclose a control method for an energy storage thermal management system. A specific implementation of the method includes: the energy storage thermal management system includes: a refrigerant circulation system, a battery cooling system and an energy storage inverter cooling system, characterized in that the refrigerant circulation system includes: a compressor, a condenser, a first evaporator, a second evaporator, a first throttling component, a second throttling component and a condensing fan component; the battery cooling system includes: a first water pump, a first free cooler, a first three-way valve, a stop valve, a free cooling fan component, a water circuit electric heater, and a battery cluster outlet water temperature sensor. This implementation can achieve a variety of different operating modes, including natural cooling of a single battery cluster, natural cooling of a battery cluster and a PCS at the same time, forced cooling of a single battery cluster, forced cooling of a battery cluster and natural cooling of a PCS, and forced cooling of a battery cluster and a PCS. The application of free cooling can significantly reduce the energy consumption of the temperature control system.
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