DC voltage reduction discharging and single-phase inversion discharging control circuit with adjustable battery pack serial structure and control method thereof

A discharge control, single-phase inverter technology, applied in battery circuit devices, circuits, secondary batteries, etc., can solve the problems of high application cost, complex circuit, large hardware volume, etc., to provide reliability and safety, control Simple, simple circuit effect

Pending Publication Date: 2018-10-19
李勇
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Both the current passive equalization and active equalization technologies have problems such as low efficiency and unsatisfactory practical application effects.
Especially the active e

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
  • DC voltage reduction discharging and single-phase inversion discharging control circuit with adjustable battery pack serial structure and control method thereof
  • DC voltage reduction discharging and single-phase inversion discharging control circuit with adjustable battery pack serial structure and control method thereof
  • DC voltage reduction discharging and single-phase inversion discharging control circuit with adjustable battery pack serial structure and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] The technical solution adopted by the present invention is to change the existing single battery (or single battery pack) to be directly connected in series to form a battery pack, but to conduct on-off control through field effect transistors, relays or other switching devices, and the single battery (Or single battery pack) is connected to the bus bar, and the battery pack voltage is obtained from the bus bar. The on-off control can also be carried out through field effect tubes, relays or other switching devices, and the bus bar of this stage is turned on and connected, and the single battery (or single battery pack) bypasses the series combination, and does not pass the discharge current. By controlling the number of single batteries (or single battery packs) that output discharge, the discharge voltage can be adjusted by DC step-down, or dynamic adjustment can be used to realize single-phase inverter discharge.

[0037] Each single battery (or single battery pack) in ...

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 discloses a DC voltage reduction discharging and single-phase inversion discharging control circuit with an adjustable battery pack serial structure. According to the circuit, discharging control can be performed on each single battery (or single battery set) through a control current conduction path. Through controlling the number of single batteries (or single battery sets) which output discharged power, adjustable DC discharging voltage is realized, or dynamic adjustment is performed for realizing single-phase inversion discharging. The circuit can realize dynamic balancing capability which is same with magnitude of discharging current. Through dynamic controlling, sufficient discharging of each single battery (or single battery set) in the battery set can be realized.

Description

technical field [0001] The invention relates to the field of batteries. Background technique [0002] The rapid development of new energy technologies, especially the widespread application of lithium batteries in backup energy storage and electric vehicles, puts forward higher requirements for key battery energy storage and battery management technologies, and it is necessary to improve the effectiveness and balance of battery pack discharge , so that the energy storage characteristics of the battery pack can be maximized. [0003] In the application of the battery pack, in addition to the battery management system, an inverter circuit needs to be added to realize the inverter discharge. The system architecture is complex and the hardware cost is high. [0004] The battery pack technology has high requirements on the consistency of single cells, otherwise the battery consistency will seriously affect the overall performance of the battery pack. However, due to the limita...

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
IPC IPC(8): H02J7/00H01M10/613H01M10/6568H01M10/48H01M10/42
CPCH01M10/425H01M10/486H01M10/613H01M10/6568H02J2207/20Y02E60/10
Inventor 李勇
Owner 李勇
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