A SOC state estimation method for multiple lithium battery parallel systems

A state estimation, lithium battery technology, applied in the direction of measuring electricity, measuring electrical variables, instruments, etc., can solve the problem that a single lithium battery cannot meet the large capacity, and achieve the effect of ensuring stable and stable operation

Active Publication Date: 2022-03-04
深圳昱泽新能源有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a single lithium battery cannot meet the demand for large-capacity power storage, so a combination of multiple lithium batteries is required

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A SOC state estimation method for multiple lithium battery parallel systems
  • A SOC state estimation method for multiple lithium battery parallel systems
  • A SOC state estimation method for multiple lithium battery parallel systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0086] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0087] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0088] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combina...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a SOC state estimation method for a multi-lithium battery parallel system, which includes the following steps: Step S1: Build a physical model of the multi-lithium battery system; Step S2: Based on the physical principles and the expression method of the T-S fuzzy model, establish Multi-lithium battery system model; Step S3: For the multi-lithium battery system model established in step S2, design a SOC fuzzy observer to estimate the state of charge of the multi-lithium battery, so that the multi-lithium battery SOC estimation error system is asymptotically stable; Step S4: Based on the SOC fuzzy observer designed in step S3, further design a fuzzy controller based on the observer to ensure the stability of the multi-lithium battery closed-loop control system. The present invention considers real working conditions and designs a fuzzy observer and fuzzy controller, so that the system can operate more stably.

Description

technical field [0001] The invention relates to the field of lithium battery system design, in particular to an SOC state estimation method of a multi-lithium battery parallel system. Background technique [0002] Lithium batteries are widely used as energy storage or power supply systems due to their light weight, safety, and pollution-free properties. However, a single lithium battery cannot meet the demand for large-capacity power storage, so a combination of multiple lithium batteries is required. Accurate state-of-charge (SOC) estimation is of great significance to improve the stable operation and economic performance of multi-lithium batteries. Contents of the invention [0003] In view of this, the object of the present invention is to propose a method for estimating the SOC state of a multi-lithium battery parallel system. Considering the real working conditions, a fuzzy observer and a fuzzy controller are designed to make the system run more stably. [0004] Th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/382
CPCG01R31/382
Inventor 汪星一钟智雄毛新光黄伟雄
Owner 深圳昱泽新能源有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap