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Energy storage system and self-heating method

An energy storage system and self-heating technology, applied in the field of electric power, can solve the problems of slow heating and low thermal efficiency, and achieve the effects of fast heating rate, high thermal efficiency, and reduced low-temperature start-up time

Active Publication Date: 2021-12-17
YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the battery is often heated by air conditioners or other external heating equipment, which has the problems of low thermal efficiency and slow heating

Method used

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  • Energy storage system and self-heating method

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Embodiment Construction

[0052] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0053] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art w...

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Abstract

The invention provides an energy storage system and a self-heating method. The energy storage system comprises a first unit, a second unit and a control unit, wherein the first unit comprises a first power conversion system and a first battery system, and the second unit comprises a second power conversion system and a second battery system; and the control unit is used for controlling the first power conversion system and the second power conversion system to perform mutual charging, namely performing mutual charging on the first battery system and the second battery system. By mutually charging the first battery system and the second battery system, the first battery system and the second battery system can be heated by utilizing heating of resistors in the battery systems, so that the temperature of the battery systems can be rapidly increased to a temperature interval suitable for battery operation in a low-temperature state, and the low-temperature starting time of the battery systems is greatly shortened. Compared with the mode of heating the battery through an air conditioner or other external heating equipment, the mode of heating the battery system through mutual charging has the advantages of being high in temperature rise rate, high in heat efficiency, energy-saving and the like.

Description

technical field [0001] The present application relates to the field of electric power, in particular, to an energy storage system and a self-heating method. Background technique [0002] Existing power systems are often equipped with energy storage systems, such as battery systems, which are used to buffer electric energy when the power supply of the grid is surplus, and release the cached electric energy to replenish the grid when the power supply of the grid is tense. The performance of the battery system is affected by its temperature. In many scenarios, such as high-altitude areas, three-north areas, or other cold environments, it is necessary to heat the battery system to increase the temperature of the battery system and make the battery run at a suitable temperature. within the specified temperature range to ensure the performance of the battery system. [0003] In the prior art, the battery is often heated by an air conditioner or other external heating equipment, w...

Claims

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Application Information

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IPC IPC(8): H02J3/32H02J15/00H02J7/00H01M10/615H01M10/637
CPCH02J3/32H02J15/00H02J7/0068H02J7/0069H01M10/615H01M10/637Y02E60/10
Inventor 高文凯杨洋徐中华江法洋
Owner YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD
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