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A kind of balance method and circuit of series battery pack/supercapacitor pack

A technology for connecting battery packs and supercapacitor packs in series, which is applied in battery circuit devices, circuit devices, collectors, etc., and can solve problems such as the practical application of unfavorable equalization technology

Inactive Publication Date: 2017-05-24
BEIJING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Not conducive to the practical application of equalization technology

Method used

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  • A kind of balance method and circuit of series battery pack/supercapacitor pack
  • A kind of balance method and circuit of series battery pack/supercapacitor pack
  • A kind of balance method and circuit of series battery pack/supercapacitor pack

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Embodiment Construction

[0028] In the following, the balancing method and circuit of the series battery pack provided by the present invention will be further described in detail with reference to the accompanying drawings and preferred examples. The foregoing and other technical content, features and effects of the invention will be clearly presented in the following detailed description of the preferred embodiment with accompanying drawings. Through the description of the specific embodiments, the technical means and effects adopted by the present invention to achieve the predetermined purpose can be understood more deeply and concretely. However, the drawings are only for reference and description, and are not intended to limit the present invention.

[0029] image 3 It is the process in which the single balancing object charges the ordinary capacitor when the balancing system of the present invention is composed of 4 balancing units. Suppose that B1 needs to charge the ordinary capacitor in the cor...

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Abstract

A balancing method and circuit for a series-connected battery pack / supercapacitor pack, including: a battery pack / supercapacitor pack, N series-connected single cells / supercapacitors; a control switch pack, including 4N controllable switches; an ordinary capacitor, To store and release energy. On the premise of real-time monitoring of the voltage of each single cell / supercapacitor in the battery pack, the present invention determines the battery / supercapacitor that needs to be balanced, and completes the energy distribution between the battery / supercapacitor by controlling the on and off of the controllable switch. transfer. The present invention can realize energy transfer between two adjacent single cells / supercapacitors or energy transfer between multiple batteries / supercapacitors. Through the control strategy, the balance of the battery pack / supercapacitor pack can be achieved after multiple energy transfers. Since the structures of each balancing unit of the present invention are exactly the same, only two wires need to be connected when each unit is connected to the next unit, and the connection after modularization is convenient and simple.

Description

Technical field [0001] The invention belongs to the technical field of electric vehicles and new energy power batteries, and relates to a balancing method of series battery packs / super capacitor packs. Background technique [0002] Currently, the world is facing increasingly serious environmental and energy problems. Electric vehicles have outstanding advantages in reducing oil consumption and reducing environmental pollution. Electric vehicles have the advantages of energy saving, zero pollution, zero emissions, high energy efficiency, high performance, etc., which make them stand out among the various energy strategy paths of future conservation and environmental protection. [0003] In order to meet the high-voltage output requirements of electric vehicle power batteries, multiple single cells or single super capacitors need to be used in series. However, due to differences in the existing manufacturing technology and impedance and temperature characteristics, the performance o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
Inventor 冯能莲张春强康常涛宾洋
Owner BEIJING UNIV OF TECH
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