Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Dynamic optimization method and device for direct-current power supply storage battery pack

A storage battery pack and dynamic optimization technology, applied in the direction of secondary batteries, electrochemical generators, design optimization/simulation, etc., can solve problems such as expanding the scope of accidents, loss of power in the load branch, and accident expansion, etc. The method is simple, efficient, and The effect of high accuracy and improved overall reliability

Pending Publication Date: 2020-04-14
STATE GRID LIAONING ELECTRIC POWER RES INST +3
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, DC power supply system faults in substations mainly rely on DC circuit breakers to achieve protection, and the phenomenon of mixed use of AC and DC circuit breakers often occurs. In the case of a fault, the upper and lower circuit breakers will jump at the same time, expanding the scope of the accident; therefore, the mixed use of AC and DC circuit breakers and the unreasonable level difference coordination will bring great difficulties to the correct protection of the DC power system, and the DC circuit breaker The protection is based on the principle of thermal magnetic tripping, and its protection process is passive; in addition, the current DC system protection measures cannot realize the isolation of DC faults, and a ground fault in the DC system will cause a ground fault in the entire DC system, and The current circuit breaker isolation will cause the load branch with a little ground fault to lose power. How to realize the DC fault isolation without losing power to the load branch still has certain technical difficulties at present.

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
  • Dynamic optimization method and device for direct-current power supply storage battery pack
  • Dynamic optimization method and device for direct-current power supply storage battery pack

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0040] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.

[0041] The present invention proposes a dynamic optimization method for a DC power battery pack, referring to figure 1 As shown, the method includes the following steps:

[0042] Step 101, collecting initial operating parameters of the storage battery;

[0043] The ...

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 belongs to the technical field of direct-current power supplies, and particularly relates to a dynamic optimization method and device for a direct-current power supply storage battery pack. The method comprises the steps of collecting initial operation parameters of a storage battery; constructing an initial management control model of the direct-current power supply storage batterypack according to the collected initial operation parameters, and realizing SOC estimation according to the initial management control model; identifying the overall series-parallel connection relationship of the battery network according to the SOC estimation result and the initial management control model; realizing dynamic recombination of the battery network topology according to the overall series-parallel connection relationship of the battery network; and monitoring the storage battery pack according to the dynamically recombined battery network topology, and dynamically optimizing thesingle batteries in the storage battery pack according to the voltage change according to the monitored operating parameters of the direct-current system. According to the invention, monitoring and dynamic optimization of the direct-current power supply storage battery pack are realized; self-configuration, self-management and self-healing of a power battery grouping system are realized; the overall reliability, durability and safety of the system are improved; and the method and device are simple, efficient and highly accurate.

Description

technical field [0001] The invention belongs to the technical field of DC power supply, and in particular relates to a dynamic optimization method and device for a battery pack of DC power supply. Background technique [0002] At present, DC power supply system faults in substations mainly rely on DC circuit breakers to achieve protection, and the phenomenon of mixed use of AC and DC circuit breakers often occurs. In the case of a fault, the upper and lower circuit breakers will jump at the same time, expanding the scope of the accident; therefore, the mixed use of AC and DC circuit breakers and the unreasonable level difference coordination will bring great difficulties to the correct protection of the DC power system, and the DC circuit breaker The protection is based on the principle of thermal magnetic tripping, and its protection process is passive; in addition, the current DC system protection measures cannot realize the isolation of DC faults, and a ground fault in 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 Applications(China)
IPC IPC(8): G06F30/20H01M10/42
CPCH01M10/4207Y02E60/10
Inventor 朱钰张武洋王飞吴志琪曲妍王同夏春勇王成华周博汪洋
Owner STATE GRID LIAONING ELECTRIC POWER RES INST
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
Eureka Blog
Learn More
PatSnap group products