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Lithium battery system compatible with capacity expansion and used for UPS, and control method thereof

A control method and technology for lithium batteries, which are applied in battery circuit devices, current collectors, electric vehicles, etc., can solve problems such as hidden safety hazards, single connection method, limited use range, etc., to improve practicability, ensure power supply safety, increase The effect of using the range

Pending Publication Date: 2022-02-18
武汉九享大众科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] 1. Due to differences in the use of existing lithium battery systems, there are many different types of UPS and power systems, and traditional lithium battery systems cannot meet the needs of different types of UPS and power systems.
[0004] 2. The connection between the existing lithium battery system and the main equipment is relatively simple, which limits the use range of the lithium battery system and reduces the practicability of the lithium battery system
[0005] 3. During the use of the existing lithium battery system, when an external short circuit occurs, the lithium battery system cannot automatically cut off the circuit, which is likely to cause a greater safety accident and pose a safety hazard

Method used

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Examples

Experimental program
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Embodiment Construction

[0023] A lithium battery system for UPS compatible with capacity expansion and its control method. This system uses high-rate lithium iron phosphate batteries, and is equipped with a three-level BMS system, integrated cloud management module and intelligent fire protection module. The working process of the system is as follows:

[0024] Process 1: During use, the battery unit level in the system adopts the LEP material system, which has high safety performance. There is a one-way explosion-proof valve on the top. greater safety incidents;

[0025] Process 2: The three-level BMS system is divided into BMU, CBMS and GBMS systems. At the same time, predictive management parameters such as SOC and SOH are also introduced to manage the entire life cycle of the entire system and a single battery unit;

[0026] Process 3: Among them, the module-level BMU is the most basic management unit, which can be integrated with the battery unit in the module, and is responsible for collecting ...

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Abstract

The invention discloses a lithium battery system compatible with capacity expansion and used for UPS, and a control method thereof. According to the system, a high-rate lithium iron phosphate battery cell is adopted, and is matched with a three-stage BMS, an integrated cloud management module and an intelligent fire-fighting module. The system has the beneficial effects that the three-stage BMS system is used, the three-stage BMS system is divided into the BMU system, the CBMS system and the GBMS system, various types of UPS and power supply systems can be compatible, the operation state of each module is accurately monitored, and the power supply safety of a user load is guaranteed; and by adopting the intelligent cloud management system, monitoring management of a mobile phone APP or a PC end can be supported through the intelligent cloud management system, so that the application range of the lithium battery system is widened, the use requirements of various industries are met, and the practicability of the lithium battery system is improved.

Description

technical field [0001] The invention relates to the technical field of lithium battery systems for UPS, in particular to a lithium battery system for UPS compatible with capacity expansion and a control method thereof. Background technique [0002] UPS is an uninterruptible power supply, which is an uninterruptible power supply with energy storage device. It is mainly used to provide uninterrupted power supply for some equipment that requires high power stability. It is a system equipment that converts direct current into mains power by modular circuits such as converters. It is mainly used to provide stable and uninterrupted power supply to a single computer, computer network system or other power electronic equipment such as solenoid valves and pressure transmitters. Some lithium battery systems for UPS mainly have the following problems during use. [0003] 1. Due to differences in the use of existing lithium battery systems, there are many different types of UPS and pow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/34H02J9/06A62C13/68
CPCH02J7/34H02J9/06A62C13/68
Inventor 杨华峰
Owner 武汉九享大众科技有限公司
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