CN201118255Y - Accumulator formation charging-discharging main circuit structure - Google Patents
Accumulator formation charging-discharging main circuit structure Download PDFInfo
- Publication number
- CN201118255Y CN201118255Y CNU2007200437470U CN200720043747U CN201118255Y CN 201118255 Y CN201118255 Y CN 201118255Y CN U2007200437470 U CNU2007200437470 U CN U2007200437470U CN 200720043747 U CN200720043747 U CN 200720043747U CN 201118255 Y CN201118255 Y CN 201118255Y
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- Prior art keywords
- charge
- bus
- charging
- discharge
- circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000007599 discharging Methods 0.000 title abstract 8
- 230000015572 biosynthetic process Effects 0.000 title abstract 2
- 238000005755 formation reaction Methods 0.000 title abstract 2
- 230000002441 reversible Effects 0.000 claims abstract description 8
- 238000004146 energy storage Methods 0.000 claims description 8
- 230000002708 enhancing Effects 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound 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[Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 230000000630 rising Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000051 modifying Effects 0.000 description 1
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a battery formation charging and discharging major circuit structure which can enhance the power factor and reduce the harmonic wave pollution of power grid. The utility model includes a power supply; the power supply can be a reversible DC power supply and the positive output terminal and the negative output terminal are respectively connected with a positive DC bus and a negative DC bus; the positive DC bus and the negative DC bus are at least connected with a charging and discharging unit and each charging and discharging unit includes a charging circuit in parallel connection with a backward diode and a discharging circuit; the input terminal of the charging circuit is connected with the positive DC bus, the output terminal of the charging circuit and the negative output terminal of the charging and discharging unit is connected with the negative DC bus, and the output terminal of the charging circuit is connected with the positive output terminal of the charging and discharging unit after connected with the input terminal of the discharging circuit. The power factor of the utility model is closely equal to 1, thus greatly reducing the harmonic wave pollution of power grid and saving the energy.
Description
Technical field
The utility model relates to and a kind ofly discharges and recharges main circuit structure to what storage battery changed into.
Background technology
In the production technology of storage battery, need be to storage battery charging and discharge repeatedly, this process becomes and changes into.As shown in Figure 1, domestic widely used main circuit structure for changing storage battery into charge and discharge, usually adopt the rectification thyristor group that constitutes by six controllable silicon D1～D6, series connection is connected to two groups of contacts of smoothing reactor L and K switch M2 in the output loop of rectification thyristor group, two groups of contacts intersections of K switch M2 are attempted by on two groups of contacts of K switch M1, smoothing reactor L is as the current filtering element, with level and smooth output current; Its operation principle is: when batteries B was charged, K switch M1 closure, K switch M2 disconnected, and when load storage battery B discharged, K switch M2 closure, K switch M1 disconnected.
Because the main circuit that discharges and recharges that uses is the ghyristor circuit structure, can produce following two drawbacks to electrical network during use: 1. use the power factor (PF) of electrical network electric weight lower; 2. can produce harmonic pollution in electric power net and waste a large amount of electric energy the input AC electrical network.
Certainly, the low available reactive power compensation of the power factor (PF) of electrical network electric weight is proofreaied and correct, but common reactive-load compensation equipment can further amplify the harmonic wave of electrical network after having improved the fundamental power factor, electrical network is caused bigger pollution, so must use the reactive-load compensation equipment of expensive anti-harmonic wave to proofread and correct.Because a plurality of charge-discharge circuits may be operated in different operating state (charged state or discharge condition), the electric energy of charging flows to battery from AC network through silicon controlled rectifier, reactor L, K switch M1, and electric energy flows to electrical network from battery through K switch M2, reactor L, silicon controlled rectifier during discharge.Electric energy exchanges on AC network, makes that harmonic wave further increases, power factor (PF) further reduces, and electrical network is caused severe contamination, and then power consumption equipment is damaged; And harmonic wave can cause the caloric value of supply transformer to increase, and a large amount of electric energy is wasted.
The utility model content
Technical problem to be solved in the utility model is: provide a kind of and improve power factor, reduce the main circuit structure for changing storage battery into charge and discharge to the harmonic pollution of electrical network.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: main circuit structure for changing storage battery into charge and discharge, comprise: power supply, power supply is the reversible dc power supply, it just, cathode output end respectively with just, negative dc bus links to each other, just, negative dc bus is connected with one road charge/discharge unit at least, every road charge/discharge unit comprises a reversible charging circuit and a discharge circuit, the input of charging circuit links to each other with the positive direct-current bus, cathode output end of the output of discharge circuit and charge/discharge unit all links to each other with negative dc bus, the output of charging circuit and cathode output end that connects charge/discharge unit after the input of discharge circuit links to each other.
Between cathode output end of the junction of the output of above-mentioned charging circuit and the input of discharge circuit and charge/discharge unit, be connected in series energy storage inductor.
The beneficial effects of the utility model are: the positive and negative dc bus of during discharge of each charge/discharge unit electric energy being fed, but not the electrical network of directly feeding, when the electric energy of positive and negative dc bus has more than needed, that is: when the voltage of positive direct-current bus has the trend of rising, dc inverter more than needed becomes the alternating current of the quasi-sine-wave electrical network of feeding, make power factor near equaling 1, the harmonic pollution of electrical network is reduced greatly, greatly energy savings.
Description of drawings
Fig. 1 is that the storage batteryization described in the background technology is put and discharged and recharged the main circuit structure schematic diagram;
Among the figure: D1, D2, D3, D4, D5, D6 are controllable silicon, and L is an inductance, and KM1, KM2 are double-pole single throw, and B is a storage battery.
Fig. 2 is that storage batteryization of the present utility model is put and discharged and recharged the main circuit structure schematic diagram;
Fig. 3 is the another kind of electric theory structure schematic diagram of power supply in the utility model;
Among Fig. 2, Fig. 3: 1, power supply, 2, the dc bus unit, 3, first via charge/discharge unit, 4, the second road charge/discharge unit.
Embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.
As shown in Figure 2, main circuit structure for changing storage battery into charge and discharge described in the utility model, comprise: the reversible dc power supply 1 that constitutes by six power tube Q1～Q6 and input filter inductance L1 and output filter capacitor C1, here the power tube of selecting for use is the IGBT of the built-in backward diode of full-control type, certainly backward diode also can be external, power supply 1 just, negative pole respectively with dc bus unit 2 in just, negative dc bus links to each other, dc bus unit 2 links to each other with 4 with two-way charge/discharge unit 3, every road charge/discharge unit comprises a reversible charging circuit and a discharge circuit, wherein: reversible charging circuit mainly is made of (in charge/discharge unit 3 and 4 IGBT of a built-in backward diode, this IGBT is meant power tube Q11 and Q21 respectively), certainly backward diode also can be external, discharge circuit mainly constitutes (in charge/discharge unit 3 and 4, this IGBT is meant power tube Q12 and Q22 respectively) by an IGBT; The input of two charging circuits is that the drain electrode of power tube Q11 and Q21 links to each other with the positive direct-current bus, the output of two discharge circuits is that the source electrode of power tube Q12 and Q22 and cathode output end of charge/discharge unit 3 and 4 connect with negative direct current parent phase, the output of each charging circuit and cathode output end that connects charge/discharge unit after the input of discharge circuit links to each other, that is: the source electrode of power tube Q11 and cathode output end that connects charge/discharge unit 3 after the drain electrode of power tube Q12 links to each other, the source electrode of power tube Q21 and cathode output end that connects charge/discharge unit 4 after the drain electrode of power tube Q32 links to each other.In the present embodiment, also be serially connected with energy storage inductor between cathode output end of the junction of the output of charging circuit and the input of discharge circuit and corresponding charge/discharge unit, that is: between the positive output terminal of the junction of the drain electrode of the source electrode of power tube Q11 and Q12 and charge/discharge unit 3, be provided with energy storage inductor L2, between the positive output terminal of the junction of the drain electrode of the source electrode of power tube Q21 and Q22 and charge/discharge unit 4, be provided with energy storage inductor L3.When practical application, the control end of power supply 1 is that the control end of grid, the charge/discharge unit 3 of power tube Q1 to Q6 is that the control end of the grid of power tube Q11 and Q12 and charge/discharge unit 4 is that the grid of power tube Q21 and Q22 links to each other with the controller of the above-mentioned main circuit work of control respectively; Power tube in the described power supply 1 also can be selected GTR, MOSFET pipe for use.As shown in Figure 3, described power supply 1 can also select for use 12 controllable silicon D1～D12 and input filter inductance L1, output inductor L4 and output filter capacitor C1 to constitute.
In the utility model, dc bus unit 2 can link to each other with the multichannel charge/discharge unit, and is not limited to the two-way charge/discharge unit 3 and 4 in the foregoing description.In the foregoing description, generally, by controller charge/discharge unit 3 and 4 is operated under the charge and discharge system, that is: when the power tube Q11 in the charge/discharge unit 3 charges to battery B1, power tube Q22 in the charge/discharge unit 4 discharges to battery B2, perhaps, when the power tube Q12 in the charge/discharge unit 3 discharges to battery B1, power tube Q21 in the charge/discharge unit 4 charges to battery B2, and power tube Q11, Q12 in charge/discharge unit 3 and 4, Q21, Q21 are operated under pulse-width modulation (PWM) mode.Discharge with battery B1 below, battery B2 be charged as example specify the work that originally discharges and recharges main circuit Cheng: when the power tube Q12 in the charge/discharge unit 3 discharges to battery B1, power tube Q11 is in off state, power tube Q12 is operated in the PWM mode, at power tube Q12 turn-on cycle, power flow energy storage inductor L2 among the battery B1, and be stored among the energy storage inductor L2, turn-off the cycle at power tube Q12, the backward diode of electric energy by power tube Q11 that is stored among the energy storage inductor L2 flows to the positive direct-current bus, flow to power tube Q21 in the charge/discharge unit 4 that is charging by positive direct-current bus stream again, turn-on cycle at power tube Q21 charges to battery B2, charge/discharge unit 4 is in the charging overall process, and power tube Q22 is in off state all the time.Be in the electric energy that electric energy among the battery B1 of discharge condition just is converted into battery B2 like this, electric energy has obtained utilizing fully between storage battery, rather than the electrical network of directly feeding.Certainly, in replacing charge and discharge process, especially have when charge/discharge unit is worked simultaneously more than three the tunnel, its electric energy of emitting and the impossible complete equipilibrium of the electric energy that need charge into, electric energy when dc bus unit 2 has more than needed, that is: when the voltage of positive direct-current bus had the trend of rising, this electric energy more than needed cooperatively interacted by the grid of six IGBT of power tube Q1 to Q6 in controller and the power supply, the AC energy that the direct current energy of having more than needed the is reverse into quasi-sine-wave electrical network of feeding; When the electric energy of dc bus unit 2 is not enough, then in time replenish by power supply 1.Power factor of the present utility model is near equaling 1, the harmonic pollution of electrical network reduced greatly, greatly energy savings.
Claims (2)
1. main circuit structure for changing storage battery into charge and discharge, comprise: power supply, it is characterized in that: described power supply is the reversible dc power supply, it just, cathode output end respectively with just, negative dc bus links to each other, just, negative dc bus is connected with one road charge/discharge unit at least, every road charge/discharge unit comprises a reversible charging circuit and a discharge circuit, the input of charging circuit links to each other with the positive direct-current bus, cathode output end of the output of discharge circuit and charge/discharge unit all links to each other with negative dc bus, the output of charging circuit and cathode output end that connects charge/discharge unit after the input of discharge circuit links to each other.
2. main circuit structure as claimed in claim 1 is characterized in that: be connected in series energy storage inductor between cathode output end of the junction of the output of described charging circuit and the input of discharge circuit and charge/discharge unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200437470U CN201118255Y (en) | 2007-11-02 | 2007-11-02 | Accumulator formation charging-discharging main circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200437470U CN201118255Y (en) | 2007-11-02 | 2007-11-02 | Accumulator formation charging-discharging main circuit structure |
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| Publication Number | Publication Date |
|---|---|
| CN201118255Y true CN201118255Y (en) | 2008-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200437470U Expired - Fee Related CN201118255Y (en) | 2007-11-02 | 2007-11-02 | Accumulator formation charging-discharging main circuit structure |
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| CN (1) | CN201118255Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837743A (en) * | 2009-03-16 | 2010-09-22 | 福特全球技术公司 | Power actuated vehicle |
| CN106712176A (en) * | 2016-12-24 | 2017-05-24 | 浙江超悦电控设备科技有限公司 | Lead-acid battery internal formation charging and discharging power supply |
-
2007
- 2007-11-02 CN CNU2007200437470U patent/CN201118255Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837743A (en) * | 2009-03-16 | 2010-09-22 | 福特全球技术公司 | Power actuated vehicle |
| CN101837743B (en) * | 2009-03-16 | 2013-06-26 | 福特全球技术公司 | Automotive vehicle |
| CN106712176A (en) * | 2016-12-24 | 2017-05-24 | 浙江超悦电控设备科技有限公司 | Lead-acid battery internal formation charging and discharging power supply |
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| CF01 | Termination of patent right due to non-payment of annual fee |