CN101222149A - Three-monomer direct equalizer of series connection accumulation power supply - Google Patents
Three-monomer direct equalizer of series connection accumulation power supply Download PDFInfo
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- CN101222149A CN101222149A CNA2008100639151A CN200810063915A CN101222149A CN 101222149 A CN101222149 A CN 101222149A CN A2008100639151 A CNA2008100639151 A CN A2008100639151A CN 200810063915 A CN200810063915 A CN 200810063915A CN 101222149 A CN101222149 A CN 101222149A
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Abstract
The invention provides a series connected energy storage power tri-monomer direct equalizer and relates to a series connected energy storage power monomer equalization circuit. The invention solves the problems that two adjacent energy storage monomers can not directly equalize the energy and the work efficiency is low. The invention comprises a first winding, a second winding, a third winding, a first switching tube, a second switching tube, a third switching tube, a fourth switching tube, a first diode, a second diode, a third diode and a fourth diode, wherein, the four diodes are respectively reversely connected in parallel with the four switching tubes, anodes of the diodes are connected with source electrodes of the switching tubes, cathodes of the diodes are connected with drain electrodes of the switching tubes, the source electrode of the first switching tube is connected with a corresponding terminal of the first winding and the drain electrode of the second switching tube, the source electrode of the second switching tube is connected with the drain electrode of the third switching tube and the drain electrode of the fourth switching tube, the source electrode of the third switching tube is connected with an unlike terminal of the second winding, the source electrode of the fourth switching tube is connected with a corresponding terminal of the third winding, a corresponding terminal of he second winding is connected with an unlike terminal of the third winding; three windings are wound on the same iron core and have the same number of turns.
Description
Technical field
The present invention relates to a kind of series connection accumulation power supply monomer equalizing circuit, particularly relate to a kind of switch transformed circuit that can realize direct and two-way transmission energy between any two monomers in adjacent three series connection accumulation monomers.
Background technology
All kinds of storage batterys and ultracapacitor have been widely used in power storage technology association areas such as motor vehicle, uninterrupted power supply, distributed power generation as the power storage element.No matter storage battery or ultracapacitor, the voltage of energy storage monomer is all lower, usually can be with several to tens accumulation power supply groups that monomer series-connected formation voltage is suitable in the practical application.Owing to be difficult to guarantee that the parameter of each energy storage monomer is in full accord, overcharging and cross and putting phenomenon of some monomer very easily appears in serial connection charge and discharge process, and cause charged capacity of series connection accumulation power supply group and security performance to reduce, cycle life reduces.Therefore, the balancing energy between the energy storage monomer becomes one of key technology of series connection accumulation power supply group practical application.
At present, existing both at home and abroad multiple equalizer topology based on electric energy switch change-over technology.Wherein a class topology can realize that the bidirectional energy transmission between adjacent two energy storage monomers or the energy of a plurality of adjacent monomer single directions transmit successively; Another kind of topology can realize the bidirectional energy transmission between monomer and the series connection accumulation power supply group, promptly realizes the exchange of energy-storage system part and integral energy.But all be to carry out between two adjacent bodies, transmit successively, can't realize direct equilibrium between non-conterminous two monomers, this equalizing system structure is loaded down with trivial details, the balancing procedure loss is big, balancing speed is low, inefficiency.
Summary of the invention
The objective of the invention is in order to solve directly balanced energy of non-conterminous two energy storage monomers, ineffective problem.
The present invention includes first winding L 1, second winding L 2, tertiary winding L3, the first switching tube S1, second switch pipe S2, the 3rd switching tube S3, the 4th switching tube S4, the first diode D1, the second diode D2, the 3rd diode D3 and the 4th diode D4, four diodes and four switching tube difference reverse parallel connections, the anode that all is diode is connected with the source electrode of switching tube, the negative electrode of diode is connected with the drain electrode of switching tube, the end of the same name of the source electrode of the first switching tube S1 and first winding L 1, the drain electrode of second switch pipe S2 links to each other, the source electrode of second switch pipe S2 and the drain electrode of the 3rd switching tube S3, the drain electrode of the 4th switching tube S4 links to each other, the source electrode of the 3rd switching tube S3 links to each other with the different name end of second winding L 2, the source electrode of the 4th switching tube S4 is connected with the end of the same name of tertiary winding L3, and the end of the same name of second winding L 2 links to each other with the different name end of tertiary winding L3.First winding L 1, second winding L 2 and tertiary winding L3 are wrapped on the same iron core, and the number of turn is identical.
Advantage of the present invention is, can realize direct and two-way transmission energy between any two monomers in adjacent three series connection accumulation monomers, when non-adjacent energy storage monomer (or power module) is unbalanced, can directly carry out balanced conversion, need not carry out the balanced conversion of secondary by means of middle monomer, thereby the energy delivery path of balancing procedure is shorter, loss is littler, speed is faster, has improved operating efficiency.
Description of drawings
Fig. 1 is the circuit connection structure schematic diagram of three-monomer direct equalizer of series connection accumulation power supply and three energy storage monomers, Fig. 2 is the first energy storage monomers B 1 is transmitted a balanced operation ideograph from energy to the second energy storage monomers B 2, Fig. 3 is the first energy storage monomers B 1 is transmitted a balanced operation ideograph from energy to the 3rd energy storage monomers B 3, Fig. 4 is the second energy storage monomers B 2 is transmitted a balanced operation ideograph from energy to the first energy storage monomers B 1, Fig. 5 is the second energy storage monomers B 2 is transmitted a balanced operation ideograph from energy to the 3rd energy storage monomers B 3, Fig. 6 is the balanced operation ideograph of the 3rd energy storage monomers B 3 to the first energy storage monomers B, 1 transmission energy, and Fig. 7 is the 3rd energy storage monomers B 3 is transmitted a balanced operation ideograph from energy to the second energy storage monomers B 2.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, present embodiment is by first winding L 1, second winding L 2, tertiary winding L3, the first switching tube S1, second switch pipe S2, the 3rd switching tube S3, the 4th switching tube S4, the first diode D1, the second diode D2, the 3rd diode D3 and the 4th diode D4 form, four diodes and four switching tube difference reverse parallel connections, the anode that all is diode is connected with the source electrode of switching tube, the negative electrode of diode is connected with the drain electrode of switching tube, the end of the same name of the source electrode of the first switching tube S1 and first winding L 1, the drain electrode of second switch pipe S2 links to each other, the source electrode of second switch pipe S2 and the drain electrode of the 3rd switching tube S3, the drain electrode of the 4th switching tube S4 links to each other, the source electrode of the 3rd switching tube S3 links to each other with the different name end of second winding L 2, the source electrode of the 4th switching tube S4 is connected with the end of the same name of tertiary winding L3, and the end of the same name of second winding L 2 links to each other with the different name end of tertiary winding L3.First winding L 1, second winding L 2 and tertiary winding L3 are wrapped on the same iron core, and the number of turn is identical.
The present invention draws four lines, and three power supply energy storage monomer both positive and negative polarities with series connection link to each other respectively: first switching tube S1 drain electrode and 1 anodal linking to each other of the first energy storage monomers B; First winding L, 1 different name end and the first energy storage monomers B, 1 negative pole and 2 anodal linking to each other of the second energy storage monomers B; Second switch pipe S2 source electrode, the 3rd switching tube S3 drain electrode and the second energy storage monomers B, 2 negative poles and 3 anodal linking to each other of the 3rd energy storage monomers B; Second winding L, 2 ends of the same name link to each other with the 3rd energy storage monomers B 3 negative poles with tertiary winding different name end L3 different name end.The present invention selects the switch mosfet pipe for use, and it carries body diode, and like this, the every pair of diode and switching tube are all replaced by a switch mosfet pipe that carries body diode respectively.
No matter be the series connection accumulation power supply group that storage battery or ultracapacitor constitute, under identical condition of work, energy storage monomer energy size is directly proportional with its terminal voltage.According to directly transmitting the control of energy principle to the minimum monomer of voltage by the high monomer of voltage, voltage difference between any two monomers surpasses when limiting threshold value, regulate by the corresponding equilibrium that a certain switching tube in the equalizer carries out, voltage between monomer is reached unanimity, thereby realize the equilibrium of energy between monomer.
Include multiple basic switch transformation topology in the described equalizer translation circuit, have six kinds of different balanced operation patterns.No matter the series connection accumulation power supply group is in the course of work of charge or discharge, still is in non operating state, and the equalizer translation circuit all can independent operating.When the combination of various imbalances appears in three accumulation power supply monomers, control the switch motion of some switching tubes separately, can realize that all the high monomer of voltage directly shifts to the energy of the minimum monomer of voltage, six kinds of mode of operations are as follows:
First kind of mode of operation: below in conjunction with Fig. 2 explanation, the first energy storage monomers B, 1 energy is the highest, and the second energy storage monomers B, 2 energy are minimum.The first switching tube S1 works independently, and constitutes the boost circuit with first winding L 1 and the second body diode D2.When the first switching tube S1 opened, the first energy storage monomers B 1, the first switching tube S1 and first winding L 1 constituted the loop, and the first energy storage monomers B, 1 excess energy stores in first winding L 1 by the first switching tube S1; When the first switching tube S1 turn-offs, first winding L 1, the second energy storage monomers B 2 and the second body diode D2 loop conducting, the energy of first winding L 1 is transferred in the second energy storage monomers B 2 by the second body diode D2.
Second kind of mode of operation: below in conjunction with Fig. 3 explanation, the first energy storage monomers B, 1 energy is the highest, and the 3rd energy storage monomers B 3 energy are minimum.The first switching tube S1 works independently, and first winding L 1, second winding L 2 and the 3rd body diode D3 constitute the single-ended reverse exciting circuit.When the first switching tube S1 opened, the first energy storage monomers B 1, the first switching tube S1 and first winding L 1 constituted the loop, and the first energy storage monomers B 1 stores excess energy in first winding L 1 into by the first switching tube S1; When the first switching tube S1 turn-offs, the 3rd energy storage monomers B 3, second winding L 2 and the 3rd body diode D3 loop conducting, the energy in first winding L 1 is transferred in the 3rd energy storage monomers B 3 through second winding L 2 by the magnetic circuit coupling.
The third mode of operation: below in conjunction with Fig. 4 explanation, the second energy storage monomers B, 2 energy are the highest, and the first energy storage monomers B, 1 energy is minimum.Second switch pipe S2 works independently, and constitutes the boost circuit with first winding L 1 and the first body diode D1.When second switch pipe S2 opened, the second energy storage monomers B 2, first winding L 1 and second switch pipe S2 constituted the loop, and the second energy storage monomers B 2 stores excess energy in first winding L 1 into by second switch pipe S2; When second switch pipe S2 turn-offs, first winding L 1, the first body diode D1 and the 1 loop conducting of the first energy storage monomers B, the energy in first winding L 1 is transferred in the first energy storage monomers B 1 by the first body diode D1.
The 4th kind of mode of operation: below in conjunction with Fig. 5 explanation, the second energy storage monomers B, 2 energy are the highest, and the 3rd energy storage monomers B 3 energy are minimum.Second switch pipe S2 works independently, and constitutes the single-ended reverse exciting circuit with first winding L 1, tertiary winding L3 and limbs diode D4.When second switch pipe S2 opened, the second energy storage monomers B 2, first winding L 1 and second switch pipe S2 constituted the loop, and the second energy storage monomers B 2 stores excess energy in first winding L 1 into by second switch pipe S2; When second switch pipe S2 turn-offed, tertiary winding L3, limbs diode D4 and the 3rd energy storage monomers B 3 constituted the loop, and the energy in first winding L 1 is transferred in the 3rd energy storage monomers B 3 through tertiary winding L3 by the magnetic circuit coupling.
The 5th kind of mode of operation: below in conjunction with Fig. 6 explanation, the 3rd energy storage monomers B 3 energy are the highest, and the first energy storage monomers B, 1 energy is minimum.The 3rd switching tube S3 works independently, and constitutes the single-ended reverse exciting circuit with second winding L 2, first winding L 1 and the first body diode D1.When the 3rd switching tube S3 opened, the 3rd energy storage monomers B 3, second winding L 2 and the 3rd switching tube S3 constituted the loop, and the 3rd energy storage monomers B 3 stores excess energy in second winding L 2 into by the 3rd switching tube S3; When the 3rd switching tube S3 turn-offs, first winding L 1, the first body diode D1 and the 1 loop conducting of the first energy storage monomers B, the energy in second winding L 2 is transferred in the first energy storage monomers B 1 through first winding L 1 by the magnetic circuit coupling.
The 6th kind of mode of operation: below in conjunction with Fig. 7 explanation, the 3rd energy storage monomers B 3 energy are the highest, and the second energy storage monomers B, 2 energy are minimum.The 4th switching tube S4 works independently, and constitutes the single-ended reverse exciting circuit with tertiary winding L3, first winding L 1 and the second body diode D2.When the 4th switching tube S4 opened, the 3rd energy storage monomers B 3, tertiary winding L3 and the 4th switching tube S4 constituted the loop, and the 3rd energy storage monomers B 3 stores excess energy among the tertiary winding L3 into by the 4th switching tube S4; When the 3rd switching tube S3 turn-offs, first winding L 1, the second body diode D2 and the 2 loop conductings of the second energy storage monomers B, the energy among the tertiary winding L3 is transferred in the second energy storage monomers B 2 through first winding L 1 by the magnetic circuit coupling.
Embodiment two: present embodiment is described below in conjunction with Fig. 1, the difference of present embodiment and execution mode one is: it also comprises first capacitor C 1, second capacitor C 2 and the 3rd capacitor C 3, one end of first capacitor C 1 links to each other with the drain electrode of the first switching tube S1, the other end of first capacitor C 1 links to each other with the different name end of first winding L 1 and an end of second capacitor C 2, the source electrode of the other end of second capacitor C 2 and second switch pipe S2, the drain electrode of the 3rd switching tube S3 links to each other with an end of the 3rd capacitor C 3, and the other end of the 3rd capacitor C 3 links to each other with the end of the same name of second winding L 2 and the different name end of tertiary winding L3.Connect like this, play filter action, make circuit waveform more steady.Other composition and connected mode are identical with execution mode one.
Claims (3)
1. three-monomer direct equalizer of series connection accumulation power supply, it is characterized in that it comprises first winding L 1, second winding L 2, tertiary winding L3, the first switching tube S1, second switch pipe S2, the 3rd switching tube S3, the 4th switching tube S4, the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4, four diodes and four switching tube difference reverse parallel connections, the anode that all is diode is connected with the source electrode of switching tube, the negative electrode of diode is connected with the drain electrode of switching tube, the end of the same name of the source electrode of the first switching tube S1 and first winding L 1, the drain electrode of second switch pipe S2 links to each other, the source electrode of second switch pipe S2 and the drain electrode of the 3rd switching tube S3, the drain electrode of the 4th switching tube S4 links to each other, the source electrode of the 3rd switching tube S3 links to each other with the different name end of second winding L 2, the source electrode of the 4th switching tube S4 is connected with the end of the same name of tertiary winding L3, the end of the same name of second winding L 2 links to each other with the different name end of tertiary winding L3, first winding L 1, second winding L 2 and tertiary winding L3 are wrapped on the same iron core, and the number of turn is identical.
2. three-monomer direct equalizer of series connection accumulation power supply according to claim 1 is characterized in that: every pair of diode, switching tube are all replaced by a switch mosfet pipe that carries body diode respectively.
3. three-monomer direct equalizer of series connection accumulation power supply according to claim 1, it is characterized in that: it also comprises first capacitor C 1, second capacitor C 2 and the 3rd capacitor C 3, one end of first capacitor C 1 links to each other with the drain electrode of the first switching tube S1, the other end of first capacitor C 1 links to each other with the different name end of first winding L 1 and an end of second capacitor C 2, the source electrode of the other end of second capacitor C 2 and second switch pipe S2, the drain electrode of the 3rd switching tube S3 links to each other with an end of the 3rd capacitor C 3, and the other end of the 3rd capacitor C 3 links to each other with the end of the same name of second winding L 2 and the different name end of tertiary winding L3.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100639151A CN101222149B (en) | 2008-01-25 | 2008-01-25 | Three-monomer direct equalizer of series connection accumulation power supply |
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| CN2008100639151A CN101222149B (en) | 2008-01-25 | 2008-01-25 | Three-monomer direct equalizer of series connection accumulation power supply |
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| CN101222149A true CN101222149A (en) | 2008-07-16 |
| CN101222149B CN101222149B (en) | 2011-05-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322560A (en) * | 2015-11-30 | 2016-02-10 | 华南理工大学 | Novel rapid self-equalization circuit of hybrid energy storage system |
| CN106532827A (en) * | 2016-11-24 | 2017-03-22 | 哈尔滨工业大学 | Series energy storage balance apparatus and method with point-to-point path |
| CN107225989A (en) * | 2017-06-08 | 2017-10-03 | 江苏嘉钰新能源技术有限公司 | A kind of series-connected batteries equalization charging circuit of electric automobile |
| CN110741528A (en) * | 2018-12-21 | 2020-01-31 | Oppo广东移动通信有限公司 | Battery power supply circuit, equipment to be charged and charging control method |
-
2008
- 2008-01-25 CN CN2008100639151A patent/CN101222149B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322560A (en) * | 2015-11-30 | 2016-02-10 | 华南理工大学 | Novel rapid self-equalization circuit of hybrid energy storage system |
| CN106532827A (en) * | 2016-11-24 | 2017-03-22 | 哈尔滨工业大学 | Series energy storage balance apparatus and method with point-to-point path |
| CN106532827B (en) * | 2016-11-24 | 2018-06-22 | 哈尔滨工业大学 | Series connection accumulation balancer and method with point-to-point path |
| CN107225989A (en) * | 2017-06-08 | 2017-10-03 | 江苏嘉钰新能源技术有限公司 | A kind of series-connected batteries equalization charging circuit of electric automobile |
| CN110741528A (en) * | 2018-12-21 | 2020-01-31 | Oppo广东移动通信有限公司 | Battery power supply circuit, equipment to be charged and charging control method |
| CN110741528B (en) * | 2018-12-21 | 2024-03-15 | Oppo广东移动通信有限公司 | Battery power supply circuit, equipment to be charged and charging control method |
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| Publication number | Publication date |
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| CN101222149B (en) | 2011-05-04 |
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Granted publication date: 20110504 Termination date: 20140125 |