CN201118256Y - Accumulator formation charging-discharging main circuit structure capable of counter charging - Google Patents
Accumulator formation charging-discharging main circuit structure capable of counter charging Download PDFInfo
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- CN201118256Y CN201118256Y CNU2007200437485U CN200720043748U CN201118256Y CN 201118256 Y CN201118256 Y CN 201118256Y CN U2007200437485 U CNU2007200437485 U CN U2007200437485U CN 200720043748 U CN200720043748 U CN 200720043748U CN 201118256 Y CN201118256 Y CN 201118256Y
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- 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
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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 reversible bridge-type positive charging circuit and a reversible bridge-type negative charging circuit; the upper half bridge output terminal of the positive charging circuit is connected with the positive output terminal of the charging and discharging unit after connected with the lower half bridge input terminal of the negative charging circuit; the upper half bridge output terminal of the negative charging circuit is connected with the negative output terminal of the charging and discharging unit after connected with the lower half bridge input terminal of the positive charging circuit; the lower half bridges of the positive charging circuit and the negative charging circuit are respectively reused as a negative charging and discharging circuit and a positive charging and 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, the domestic widely used charge-discharge circuit structure that changes into, 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.Sort circuit does not possess usually to the anti-function of filling of storage battery.
Because the charge-discharge circuit 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 that can instead fill 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: the main circuit structure for changing storage battery into charge and discharge that can instead fill, 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: reversible bridge-type just, the reverse charge road, the last half-bridge output on road and the forward lead-out terminal that connects charge/discharge unit after the following half-bridge input on reverse charge road links to each other are just charging, the last half-bridge output on reverse charge road and inverse output terminal that connects charge/discharge unit after the following half-bridge input on the road of just charging links to each other, just, the input of the last half-bridge on reverse charge road links to each other with the positive direct-current bus, just, the output of the following half-bridge on reverse charge road links to each other with negative dc bus; The following half-bridge on positive and negative charging road is multiplexed with respectively instead, positive charge-discharge circuit.
Between the tie point of the input of half-bridge under the output of half-bridge on the above-mentioned road of just charging and the reverse charge road and forward lead-out terminal, be serially connected with energy storage inductor.
Between the tie point of the input of half-bridge under the output of half-bridge on the above-mentioned reverse charge road and the road of just charging and inverse output terminal, be serially connected with 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, saved the energy; And when storage battery changes into, fill storage battery is counter, can prolong the useful life of storage battery.
Description of drawings
Fig. 1 is the charge-discharge circuit structural representation described in the background technology;
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 an electric theory structure schematic diagram of the present utility model;
Fig. 3 is the electric theory structure schematic diagram of another kind of power supply of the present 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 input filter inductance L1 and the output filter capacitor C1 of six power tube Q1～Q6, 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: reversible bridge-type just, the reverse charge road, the last half-bridge output on road and the forward lead-out terminal that connects charge/discharge unit after the following half-bridge input on reverse charge road links to each other are just charging, the last half-bridge output on reverse charge road and inverse output terminal that connects charge/discharge unit after the following half-bridge input on the road of just charging links to each other, just, the input of the last half-bridge on reverse charge road links to each other with the positive direct-current bus, just, the output of the following half-bridge on reverse charge road links to each other with negative dc bus; The following half-bridge on positive and negative charging road is multiplexed with respectively instead, positive charge-discharge circuit; That the upper and lower half-bridge in the described positive and negative charging road adopts all is the IGBT of built-in backward diode, certainly, backward diode also can be external, for charge/ discharge unit 3 and 4, the upper and lower half-bridge in the positive and negative charging road is power tube Q11, Q14, Q13, Q12 and Q21, Q24, Q23, Q22 successively.Between the tie point of the input of half-bridge under the output of half-bridge on the described road of just charging and the reverse charge road and forward lead-out terminal, be provided with energy storage inductor, that is: be provided with energy storage inductor L2 between the forward lead-out terminal of the junction of the drain electrode of the source electrode of power tube Q11 and power tube Q12 and charge/discharge unit 3, be provided with energy storage inductor L3 between the junction of the drain electrode of the source electrode of power tube Q21 and power tube Q32 and the forward lead-out terminal of charge/discharge unit 4; Certain above-mentioned energy storage inductor also can be serially connected between the tie point and inverse output terminal of the input of half-bridge under the output of half-bridge on the reverse charge road and the road of just charging.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, Q12, Q13 and Q14 and charge/discharge unit 4 is that the grid of Q21, Q22, Q23 and Q24 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 or 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.As everyone knows, new storage battery should promptly start the upper and lower half-bridge work on reverse charge road simultaneously at first to its counter filling in formation process, and is the same with regard to its process in fact with just filling.Below just describe operation principle of the present utility model in detail with just filling of the foregoing description with discharge process: generally, by controller charge/ discharge unit 3 and 4 is operated under the charge and discharge system, that is: when power tube Q11 in charge/discharge unit 3 and Q14 charge to battery B1, power tube Q22 in the charge/discharge unit 4 and the backward diode among the Q24 discharge to battery B2, perhaps, when power tube Q12 in charge/discharge unit 3 and the backward diode among the Q14 discharge to battery B1, power tube Q21 and Q24 in the charge/discharge unit 4 charge to battery B2, and power tube Q11～14 in charge/ discharge unit 3 and 4 and Q21～24 all 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 structure Cheng: when the power tube Q12 in the charge/discharge unit 3 and the backward diode among the Q14 discharge to battery B1, power tube Q11, Q13, Q14 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 and Q24 charges to battery B2, charge/discharge unit 4 is in the charging overall process, and power tube Q22 and Q23 are in off state all the time.Like this, be in the electric energy that electric energy among the B1 of discharge condition just is converted into B2, be fully utilized, 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, with the quasi-sine-wave that the is reverse into 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, and the harmonic pollution of electrical network is reduced greatly, saved the energy; And when storage battery changes into, fill storage battery is counter, can prolong the useful life of storage battery.
Claims (3)
1. the main circuit structure for changing storage battery into charge and discharge that can instead fill, 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: reversible bridge-type just, the reverse charge road, the last half-bridge output on road and the forward lead-out terminal that connects charge/discharge unit after the following half-bridge input on reverse charge road links to each other are just charging, the last half-bridge output on reverse charge road and inverse output terminal that connects charge/discharge unit after the following half-bridge input on the road of just charging links to each other, just, the input of the last half-bridge on reverse charge road links to each other with the positive direct-current bus, just, the output of the following half-bridge on reverse charge road links to each other with negative dc bus; The following half-bridge on positive and negative charging road is multiplexed with respectively instead, positive charge-discharge circuit.
2. the main circuit structure that discharges and recharges as claimed in claim 1 is characterized in that: be serially connected with energy storage inductor between the tie point of the input of half-bridge under the output of half-bridge on the described road of just charging and the reverse charge road and forward lead-out terminal.
3. the main circuit structure that discharges and recharges as claimed in claim 1 is characterized in that: be serially connected with energy storage inductor between the tie point of the input of half-bridge under the output of half-bridge on the described reverse charge road and the road of just charging and inverse output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200437485U CN201118256Y (en) | 2007-11-02 | 2007-11-02 | Accumulator formation charging-discharging main circuit structure capable of counter charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200437485U CN201118256Y (en) | 2007-11-02 | 2007-11-02 | Accumulator formation charging-discharging main circuit structure capable of counter charging |
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| Publication Number | Publication Date |
|---|---|
| CN201118256Y true CN201118256Y (en) | 2008-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200437485U Expired - Fee Related CN201118256Y (en) | 2007-11-02 | 2007-11-02 | Accumulator formation charging-discharging main circuit structure capable of counter charging |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170158A (en) * | 2011-05-02 | 2011-08-31 | 郑江平 | Charging circuit of electric automobile power battery |
| CN106025363A (en) * | 2016-06-06 | 2016-10-12 | 珠海泰坦新动力电子有限公司 | High-frequency isolating two-way single-power lithium-ion battery forming and grading equipment |
| CN112737005A (en) * | 2020-12-11 | 2021-04-30 | 蚌埠睿德新能源科技有限公司 | Storage battery formation charging and discharging power supply |
| CN112737004A (en) * | 2020-12-11 | 2021-04-30 | 蚌埠睿德新能源科技有限公司 | Storage battery formation charging and discharging power supply and formation method thereof |
| CN112737002A (en) * | 2020-12-11 | 2021-04-30 | 蚌埠睿德新能源科技有限公司 | Storage battery formation charging and discharging power supply |
-
2007
- 2007-11-02 CN CNU2007200437485U patent/CN201118256Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170158A (en) * | 2011-05-02 | 2011-08-31 | 郑江平 | Charging circuit of electric automobile power battery |
| CN102170158B (en) * | 2011-05-02 | 2013-03-06 | 郑江平 | Charging circuit of electric automobile power battery |
| CN106025363A (en) * | 2016-06-06 | 2016-10-12 | 珠海泰坦新动力电子有限公司 | High-frequency isolating two-way single-power lithium-ion battery forming and grading equipment |
| CN112737005A (en) * | 2020-12-11 | 2021-04-30 | 蚌埠睿德新能源科技有限公司 | Storage battery formation charging and discharging power supply |
| CN112737004A (en) * | 2020-12-11 | 2021-04-30 | 蚌埠睿德新能源科技有限公司 | Storage battery formation charging and discharging power supply and formation method thereof |
| CN112737002A (en) * | 2020-12-11 | 2021-04-30 | 蚌埠睿德新能源科技有限公司 | Storage battery formation charging and discharging power supply |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |