Two-way lossless active equalizer

An active equalization, two-way flyback technology, applied in circuit devices, battery circuit devices, output power conversion devices, etc., can solve the problem that the battery cannot be balanced, and achieve the goal of improving energy utilization efficiency, reducing energy loss, and reducing impact. Effect

Inactive Publication Date: 2016-09-21
ANHUI GVB RENEWABLE ENERGY TECH
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing technology has the following shortcomings: the balance cannot be completed when the battery is working, that is, the balance must be completed when the battery is parked

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
  • Two-way lossless active equalizer
  • Two-way lossless active equalizer
  • Two-way lossless active equalizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] A bidirectional non-destructive equalization device for power battery charging, consisting of a main control circuit ( Figure 7 ), bidirectional flyback DC / DC circuit ( figure 1 ), the overall side PWM wave generation circuit ( figure 2 ), PWM wave generating circuit on the monomer side ( image 3), the overall side voltage regulator circuit ( Figure 4 ), single side regulator circuit ( Figure 5 ),protect the circuit( Figure 6 )composition.

[0037] Among them, the bidirectional flyback DC / DC circuit is used to realize the voltage rise and fall, the PWM wave generating circuit provides driving for the bidirectional flyback DC / DC circuit, and the protection circuit is mainly to realize the reliable operation of the circuit.

[0038] In this embodiment, in the bidirectional flyback DC / DC circuit ( figure 1 ) is equipped with RCD peak absorbing circuit, TL431 voltage stabilizing circuit is used in conjunction with UC2843, the main control circuit is connected wi...

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 bidirectional lossless active balance device. The bidirectional lossless active balance device comprises a main control circuit, a bidirectional flyback DC / DC circuit, an overall side PWM wave generating circuit, a single side PWM wave generating circuit, an overall side voltage stabilizing circuit, a single side voltage stabilizing circuit, and a protection circuit. The bidirectional lossless active balance device does not need an external energy storage element, whereas a battery pack is used for replacing the energy storage element. If the single voltage is too high, a single battery recharges the battery pack to lower down the battery voltage; if the battery voltage is too low, the battery pack recharges the battery to rise up the single voltage. The bidirectional lossless active balance device can achieve balance between single batteries; when balancing starts, a balance circuit recharges the battery with a constant current, and recharges the battery with a constant voltage when a designated voltage is reached.

Description

technical field [0001] The invention relates to an equalization control device for charging and discharging a power battery, in particular to a two-way lossless active equalization device. Background technique [0002] There are inconsistencies in the charging, discharging and use of power batteries. If this inconsistency is not suppressed and balanced in time, the imbalance between batteries will continue to increase, and eventually affect the work of the entire battery pack. Therefore, effective battery balancing is of great significance to the continuous and reliable operation of the battery system. Most of the equalization control methods currently used in the market use energy depletion or single-ended equalization. The former causes energy waste, while the latter can only achieve one-way equalization, so it is not practical. [0003] The most similar implementation scheme to the present invention is a bidirectional lossless equalization based on a forward DC / DC conver...

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): H02J7/00
CPCH02J7/342H02M3/335
Inventor 陈宗海张旭汪玉洁解竞陈涛张陈斌
Owner ANHUI GVB RENEWABLE ENERGY TECH
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