CN102064592B - High-power battery device - Google Patents
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- CN102064592B CN102064592B CN 201110024236 CN201110024236A CN102064592B CN 102064592 B CN102064592 B CN 102064592B CN 201110024236 CN201110024236 CN 201110024236 CN 201110024236 A CN201110024236 A CN 201110024236A CN 102064592 B CN102064592 B CN 102064592B
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Abstract
The invention relates to a high-power battery device which comprises a plurality of battery units, battery management units and a plurality of voltage conversion units. Each battery unit is formed by a single battery or a plurality of series connected single batteries, the battery management units are respectively connected in parallel with the output ends of the plurality of battery units, the plurality of voltage conversion units are respectively connected with the output ends of the battery management units and output set voltages, the output ends of the plurality of voltage conversion units are connected in parallel, each voltage conversion unit has an output end current-sharing signal to ensure little difference among output powers of the voltage conversion units. The voltage conversion units are bidirectional, which means that the voltage conversion unit can supply energy for the output ends when the batteries supply power and can charge the batteries when an additional required voltage is applied to the output ends. The high-power battery device has the advantages of not causing abnormal power supply due to difference of the batteries and keeping output voltage stable as required.
Description
Technical field
The present invention relates to rechargeable battery, more particularly, relate to a kind of large power, electrically pool device.
Background technology
Hybrid vehicle, bimodulus car, pure electric automobile, home energy source system, distributed peak load stations and in the equipment of useful series-connected cell power supply, because single battery voltage is low, a lot of application must be the multiple batteries series connection, the passing of and time increasingly extensive along with the application of battery (especially lithium battery), the problem that produces owing to the battery series connection also exposes gradually, for example, the damage of any batteries all can cause the interruption of power supply in the series connection, not backup power supply, the application that can not have a power failure to many requirements is improper; At this moment, even adopt reserce cell, but cost and volume can significantly rise.In addition, because every batteries is variant, be difficult to accomplish that every batteries discharges and recharges fully during the battery series-connection charge-discharge, after the long-time repeated charge, what easily certain batteries of generation was filled is very not full, can give out light earlier when discharge, this moment, the entire cell system can't power, and can produce the phenomenon that the new battery of power-on time significantly reduces.Simultaneously, voltage height when cell voltage has just come into operation after charging, discharge back voltage is lower, is unfavorable for the optimization of late-class circuit and the raising of efficient.
Summary of the invention
The technical problem to be solved in the present invention is, because the difference of battery itself causes the defective that cell voltage reduces in abnormal electrical power supply, the use, provide a kind of constant a kind of large power, electrically pool device of output voltage in abnormal electrical power supply, the use that can not cause owing to the difference of battery itself at the above-mentioned of prior art.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of large power, electrically pool device, comprise a plurality of battery units that formed by single battery or a plurality of single battery serial connection, be attempted by the battery management unit on described a plurality of battery unit output, a plurality of voltage conversion unit that is connected to described battery management unit output and exports setting voltage respectively, the output of described a plurality of voltage conversion units also connects.
In large power, electrically pool device of the present invention, the battery joint number in the described battery unit is identical or inequality; The output voltage of described battery management unit is identical or inequality; The output voltage of described voltage conversion unit is identical.
In large power, electrically pool device of the present invention, described battery management unit comprises that being connected to the passage of described voltage conversion unit, the parameter that is used for being obtained by described passage the parameter of described battery unit for the output voltage with described battery unit obtains module, is used for receiving described parameter and obtains the module input parameter and export the control module of control signal and be used for described control signal is outputed to the control signal output module of described voltage conversion unit or actuator.
In large power, electrically pool device of the present invention, described parameter obtains module and comprises be used to the current sampling device of obtaining current current value on the described passage, for the voltage sampling device of obtaining magnitude of voltage on the described passage and for the temperature acquisition device of obtaining described battery unit Current Temperatures.
In large power, electrically pool device of the present invention, described control signal output module comprise the signal for the output current that will control described voltage conversion device be transferred to described voltage conversion device output current control device, the signal that is used for control the output voltage of described voltage conversion device be transferred to described voltage conversion device output voltage-operated device and be used for the battery input disconnection control device that the passage of the described battery unit of output control and described voltage conversion unit is switched on or switched off.
In large power, electrically pool device of the present invention, also comprise on the passage passage that is serially connected in described battery unit and described voltage conversion unit, dropped into by described battery to disconnect first switch that control device is controlled its break-make.
In large power, electrically pool device of the present invention, the two-way DC/DC converter of voltage conversion unit for when battery unit has energy, powering, when output has applied voltage, charge to battery unit to load output.
In large power, electrically pool device of the present invention, described DC/DC converter comprises two-way anti-sharp DC converter.
In large power, electrically pool device of the present invention, described DC/DC converter comprises the voltage transitions control unit of the first voltage generation unit that is connected with described battery unit, the second voltage generation unit that is connected with described a plurality of voltage conversion unit outputs, the described first voltage generation unit of control and the described second voltage generation unit; The described first voltage generation unit comprises that its output is transported to first voltage sampling apparatus and first current sampling device of described voltage transitions control unit input respectively; The described second voltage generation unit comprises that its output is transported to second voltage sampling apparatus and second current sampling device of described voltage transitions control unit input respectively.
In large power, electrically pool device of the present invention, the described first voltage generation unit comprises non-isolation reversible transducer or stopping direct current converter, and the described second voltage generation unit comprises stopping direct current converter or non-isolation reversible transducer; There is and only have one to be non-isolation reversible transducer in the described first voltage generation unit and the second voltage generation unit.
In large power, electrically pool device of the present invention, described non-isolation reversible transducer comprise forward boost reverse reduction voltage circuit, the forward step-down is oppositely boosted or forward and reverse lifting circuit.
In large power, electrically pool device of the present invention, when input voltage and output voltage did not need to isolate, described DC/DC converter comprised non-isolation two-way DC converter.
In large power, electrically pool device of the present invention, described isolated DC converter includes but not limited to following circuit: former limit half-bridge secondary half-bridge circuit, former limit half-bridge secondary push-pull circuit, former limit half-bridge secondary full-bridge circuit, former limit recommend that secondary half-bridge circuit, former limit are recommended the secondary push-pull circuit, secondary full-bridge circuit, former limit full-bridge secondary half-bridge circuit, former limit full-bridge secondary push-pull circuit or former limit full-bridge secondary full-bridge circuit are recommended in former limit.
Implement a kind of large power, electrically pool device of the present invention, has following beneficial effect: owing to use less battery joint number to constitute battery unit, make its output voltage rise to the rated voltage of needs by voltage conversion unit simultaneously, so this large power, electrically pool device can not cause abnormal electrical power supply owing to the difference of battery itself, use in output voltage can be constant.
Description of drawings
Fig. 1 is the structural representation of large power, electrically pool device among a kind of large power, electrically pool device of the present invention and the device embodiment thereof;
Fig. 2 is to be the sense of current schematic diagram of battery when powering to output among the described embodiment;
Fig. 3 is the structural representation of battery management unit among the described embodiment;
Fig. 4 is the structural representation of voltage conversion unit among the described embodiment;
Fig. 5 is the structural representation of voltage conversion unit among other embodiment among the present invention;
Fig. 6 is the boost topological structure schematic diagram of reverse reduction voltage circuit of non-isolated converter adopts in the voltage conversion unit in the other embodiments of the invention forward;
Fig. 7 is the topological structure schematic diagram of the reverse booster circuit of forward step-down that non-isolated converter adopts in the voltage conversion unit in the other embodiments of the invention;
Fig. 8 is the topological structure schematic diagram of forward and reverse step-up/step-down circuit that non-isolated converter adopts in the voltage conversion unit in the other embodiments of the invention;
Fig. 9 is the topological structure schematic diagram of the former limit half-bridge secondary half-bridge circuit that isolated converter adopts in the voltage conversion unit in the other embodiments of the invention;
Figure 10 is the topological structure schematic diagram of the former limit half-bridge secondary push-pull circuit that isolated converter adopts in the voltage conversion unit in the other embodiments of the invention;
Figure 11 is the topological structure schematic diagram of the former limit half-bridge secondary full-bridge circuit that isolated converter adopts in the voltage conversion unit in the other embodiments of the invention;
Figure 12 is the topological structure schematic diagram that the secondary half-bridge circuit is recommended on isolated converter adopts in the voltage conversion unit in the other embodiments of the invention former limit;
Figure 13 is the topological structure schematic diagram that the secondary push-pull circuit is recommended on isolated converter adopts in the voltage conversion unit in the other embodiments of the invention former limit;
Figure 14 is the topological structure schematic diagram that the secondary full-bridge circuit is recommended on isolated converter adopts in the voltage conversion unit in the other embodiments of the invention former limit;
Figure 15 is the topological structure schematic diagram of the former limit full-bridge bridge secondary half-bridge circuit that isolated converter adopts in the voltage conversion unit in the other embodiments of the invention;
Figure 16 is the topological structure schematic diagram of the former limit full-bridge secondary push-pull circuit that isolated converter adopts in the voltage conversion unit in the other embodiments of the invention;
Figure 17 is the topological structure schematic diagram of the former limit full-bridge secondary full-bridge circuit that isolated converter adopts in the voltage conversion unit in the other embodiments of the invention.
Embodiment
Embodiments of the present invention is further illustrated below in conjunction with accompanying drawing.
As shown in Figure 1, in a kind of large power, electrically pool device of the present invention embodiment, that this high power battery comprises is a plurality of (m) battery unit (101,102 ... 10m), on the output of each battery unit respectively and be connected to a battery management unit (201,202 ... 20m), battery unit outwards provides voltage and current by above-mentioned battery management unit; Output at above-mentioned each battery management unit, be connected with a voltage conversion unit (301,302 respectively ... 30m), the effect of above-mentioned voltage conversion unit is that the voltage transitions that battery unit provides is also externally provided for a voltage of setting as required, in the present embodiment, the voltage of this setting is exactly the rated output voltage of this large power, electrically pool device.In the present embodiment, comprised the single battery 11 that is connected in series, single battery 12 in above-mentioned first battery unit 101 up to single battery 1i, wherein, i is the integer more than or equal to 1; The single battery 21 of serial connection, single battery 22 are up to single battery 2j in second battery unit 201, and wherein, j is the integer more than or equal to 1; And the single battery m1, the single battery m2 that comprise serial connection among m battery unit 10m be up to single battery mk, and wherein, m, k all are the integers more than or equal to 1.In the present embodiment, the quantity of the single battery in above-mentioned each battery unit is inequality, just says, above-mentioned i, j, k are unequal.In other embodiments, also can be so that the quantity of the single battery in above-mentioned each battery unit also can be equal.
In the present embodiment, because the quantity of the single battery in above-mentioned each battery unit is also unequal, so, the voltage of its series connection back output is also inequality, through battery management unit (101,102 separately ... output to 10m) respectively and above-mentioned battery management unit (101,102 ... 10m) voltage conversion unit of Lian Jieing (301,302 ... the direct voltage of voltage input end 30m) is also inequality, passing through the above-mentioned first different voltage conversion unit (301,302 ... 30m) afterwards, above-mentioned different direct voltage is converted into identical voltage.Simultaneously, above-mentioned each voltage conversion unit (301,302 ... voltage output end 30m) connects together, and makes that the load capacity on above-mentioned rated output voltage greatly strengthens, and reaches the carrying load ability that satisfies this large power, electrically pool device design.
Above each several part and connection thereof have constituted each battery unit (101,102 in the present embodiment ... 10m) to voltage conversion unit (101,102 ... 10m), the current supply circuit of load.
As shown in Figures 2 and 3, in the present embodiment, because voltage conversion unit is a two-way DC/DC converter, namely battery both can be powered to output, also can be to battery charge when the output applied voltage.
The sense of current schematic diagram that Fig. 2 represents when being powered battery.Wherein 701 indicate battery pack output plus terminal, battery management unit input anode, 702 indicate battery pack output negative terminal, battery management unit input negative terminal, the anode of 801 expression battery management units, the input anode of voltage conversion unit, the output negative terminal of 802 expression battery management units, the input negative terminal of voltage conversion unit, the output plus terminal of 901 expression voltage conversion units, the output negative terminal of 902 expression voltage conversion units.When the output applied voltage, opposite in the sense of current of battery charge and Fig. 2.
Fig. 3 is the structural representation of the structure of a battery management unit in the present embodiment.In Fig. 3, the voltage output end of battery unit 1 (or charging end) is connected with extraneous with first switch 6 by insurance 5, is to be connected with voltage conversion unit in the present embodiment, and these connect the passage (being used for discharge or charging) that has just constituted battery unit 1.Simultaneously, control module 3 obtains the various parameters that module 2 obtains above-mentioned battery unit by parameter, and according to the rule of prior setting, value output control signal according to the above-mentioned various parameters that obtain, these control signals output on the object of its control by control signal output module 4, for example, output to above-mentioned voltage conversion unit or first switch.In the present embodiment, above-mentioned parameter is obtained module and is comprised for the current sampling device 21 of obtaining the current current value of above-mentioned passage, is used for obtaining the voltage sampling device 23 of current magnitude of voltage of above-mentioned passage and the temperature sampler 22 that is used for obtaining temperature value on the above-mentioned battery unit 1.In the present embodiment, said temperature sampler 22 has also comprised the thermistor 221 that is close on the above-mentioned battery unit 1, and its variations in temperature with battery unit 1 changes resistance; Current sampling device 21 also comprises instrument transformer 222; Voltage sampling device 23 then is to obtain current voltage in the above-mentioned passage by the bleeder circuit among Fig. 3.
In addition, in the present embodiment, above-mentioned control signal output unit comprises current control device 41, voltage-operated device 42 and access control apparatus 43; Wherein, current control device 41 is accepted the current controling signal of control module 3 outputs and is sent it to voltage conversion unit, is used for the output current of the above-mentioned voltage conversion unit of control; Voltage-operated device 42 is accepted the voltage control signal of control module 3 outputs and is sent it to voltage conversion unit, is used for the output voltage of the above-mentioned voltage conversion unit of control; Access control apparatus 43 is controlled the conducting of above-mentioned first switch 6 or is ended then when above-mentioned control unit 3 output control signals, makes above-mentioned passage be switched on or switched off.
Fig. 4 is the structural representation of a voltage conversion unit in the present embodiment, in the present embodiment, voltage conversion unit is a two-way anti exciting converter that MOSFET is arranged at the former secondary of transformer, comprising the former limit part 8 of joining with battery management unit, the secondary part 9 that joins with output, and voltage transitions control unit 7.Particularly, in Fig. 4, VIN+ is connected with the positive and negative output of battery management unit respectively with VIN-, and VOUT+ and VOUT-are a plurality of voltage conversion unit outputs and the place that connects, and former secondary part is by transformer (L1, L2) coupling.Voltage control unit 7 is accepted from the voltage signal of former limit part 8, former limit MOSFET(Q1) on current signal I1, and control former limit MOSFET(Q1) break-make; Acceptance is from voltage signal, the secondary MOSFET(Q2 of secondary part 9) on current signal I2, and control secondary MOSFET(Q2) break-make; Simultaneously, voltage control unit 7 is also accepted signal that battery management unit sends, is exported and accept the current-sharing signal, by controlling above-mentioned MOSFET(Q1, Q2) break-make realize the control that electric current is discharged and recharged and when powered battery, guarantee the power roughly the same (current-sharing) of each battery unit output and when the battery unit of its connection breaks down, make this battery unit deactivate separately.
More specifically, in the present embodiment, above-mentioned former limit part 8 comprises resistance R 1, resistance R 2, capacitor C 1, the former limit L1 of transformer, the first controlled switch Q1 and instrument transformer I1, wherein, Input voltage terminal VIN+ is connected to Input voltage terminal VIN-by two switch terminals of the former limit L1 of transformer and the first controlled switch Q1, instrument transformer I1 is arranged on the above-mentioned VIN-, obtain the data input that the first controlled switch Q1 goes up current value and is connected to above-mentioned voltage transitions control unit 7, be used for the peak current on the control first controlled switch Q1; Capacitor C 1 is attempted by between Input voltage terminal VIN+ and the VIN-; Be attempted by between above-mentioned Input voltage terminal VIN+ and the VIN-after resistance R 1 and resistance R 2 serial connections, obtain magnitude of voltage and be transported to another data input pin of above-mentioned voltage transitions control unit 7 by the tie point of above-mentioned resistance R 1 and resistance R 2, so resistance R 1 and resistance R 2 form first voltage sampling apparatus; Simultaneously, voltage transitions control unit 7 output control signal GQ1 control the states such as service time of the first controlled switch Q1 to the control end of the above-mentioned first controlled switch Q1.Secondary part 9 comprises resistance R 3, resistance R 4, capacitor C 2, transformer secondary L2, the second controlled switch Q2 and instrument transformer I0 and instrument transformer I2, wherein, output voltage terminal VOUT+ is connected to Input voltage terminal VOUT-by two switch terminals of inductive transformer secondary L2 and the second controlled switch Q2, instrument transformer I2 is arranged on the above-mentioned VOUT-, obtain current value on it and be connected to a data input of above-mentioned voltage transitions control unit 7, be used for the peak current on the control second controlled switch Q2; Capacitor C 2 is attempted by between Input voltage terminal VOUT+ and the VOUT-; Be attempted by between above-mentioned Input voltage terminal VOUT+ and the VOUT-after resistance R 3 and resistance R 4 serial connections, obtain magnitude of voltage and be transported to another data input pin of above-mentioned voltage transitions control unit 7 by the tie point of above-mentioned resistance R 3 and resistance R 4, so resistance R 3 and resistance R 4 form second voltage sampling apparatus; Instrument transformer I0 is arranged on the VOUT+, obtains current value on it and is connected to another data input pin of above-mentioned voltage transitions control unit 7, is used for the control output current; Simultaneously, voltage transitions control unit 7 output control signal GQ2 control the states such as service time of the second controlled switch Q2 to the control end of the above-mentioned second controlled switch Q2.
In addition, in other embodiments, referring to Fig. 5.Have one to be the reversible transducer of non-isolation in the first voltage generation unit and the second voltage generation unit, and another is the converter of isolating.Which being the reversible transducer of non-isolation as for, then can selecting according to concrete condition, can be the first voltage generation unit, also can be the second voltage generation unit.Non-isolation reversible transducer can comprise forward boost reverse reduction voltage circuit, the forward step-down is oppositely boosted or forward and reverse lifting circuit etc., referring to Fig. 6-Fig. 8, wherein Fig. 6 is that forward boosts, the topological structure schematic diagram of reverse reduction voltage circuit, Fig. 7 is the topological structure schematic diagram of forward step-down, reverse booster circuit, and Fig. 8 is the forward and reverse topological structure schematic diagram that can fall circuit (being forward and reverse lifting circuit) that rises; Isolated converter also can be selected multiple circuit form according to concrete condition, and referring to Fig. 9-Figure 17, wherein Fig. 9 is the topological structure schematic diagram of former limit half-bridge, secondary half-bridge circuit; Figure 10 is the topological structure schematic diagram of former limit half-bridge, secondary push-pull circuit; Figure 11 is the topological structure schematic diagram of former limit half-bridge, secondary full-bridge circuit; Figure 12 is that recommend on former limit, the topological structure schematic diagram of secondary half-bridge circuit; Figure 13 is that recommend on former limit, the topological structure schematic diagram of secondary push-pull circuit; Figure 14 is that recommend on former limit, the topological structure schematic diagram of secondary full-bridge circuit; Figure 15 is the topological structure schematic diagram of former limit full-bridge, secondary half-bridge circuit; Figure 16 is the topological structure schematic diagram of former limit full-bridge, secondary push-pull circuit; Figure 17 is the topological structure schematic diagram of former limit full-bridge, secondary full-bridge circuit.What deserves to be mentioned is that these circuit are only just listed the scope that the explanation isolated converter can be selected, and are not whole circuit forms that isolated converter can be selected.Because these circuit forms are those skilled in the art and know and know, just do not enumerate one by one at this.
In the embodiment that input voltage and output voltage do not need to isolate, the DC/DC converter also can only be non-isolation two-way DC converter, same because the circuit form of non-isolation two-way DC converter is those skilled in the art and knows and know, does not repeat them here.
In a word, in the present embodiment, owing to be the outputs in parallel behind the battery management unit by separately and the voltage conversion unit respectively of many Battery packs, even some batteries damage or are discharged earlier, only need deactivate to the voltage conversion unit at this battery place, not influence whole output.Equally, increase power only needs to incorporate battery pack more into and install to get final product.Because voltage conversion unit is a two-way DC/DC converter, when the output applied voltage, can solve the problem of many Battery pack chargings by battery management unit to battery charge simultaneously.Since many Battery packs respectively by behind the battery management unit separately by voltage conversion unit and connect, even a certain batteries is damaged or is discharged earlier, the battery management unit that passes through to connect makes order unit of institute quit work, do not influence whole power supply, improve the reliability of power supply, prolonged power-on time.When the output applied voltage, to battery charge, solved the problem of many Battery pack chargings by voltage conversion unit.Also can increase by one to several means more, strengthen the reliability of power supply capacity, battery failures be arranged namely or when being discharged earlier, other battery pack also can provide specified load capacity.In addition, described voltage conversion unit is a kind of two-way DC/DC converter, and namely battery pack can also can add required voltage to battery charge (as shown in Figure 3) at output by DC/DC to output power supply (as shown in Figure 2).
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (12)
1. large power, electrically pool device, it is characterized in that, comprise a plurality of battery units that formed by single battery or a plurality of single battery serial connection, be attempted by the battery management unit on described a plurality of battery unit output, a plurality of voltage conversion unit that is connected to described battery management unit output and exports setting voltage respectively, the output of described a plurality of voltage conversion units also connects; Battery joint number in the described battery unit is identical or inequality; The output voltage of described battery management unit is identical or inequality; The output voltage of described voltage conversion unit is identical.
2. large power, electrically pool device according to claim 1, it is characterized in that described battery management unit comprises that being connected to the passage of described voltage conversion unit, the parameter that is used for being obtained by described passage the parameter of described battery unit for the output voltage with described battery unit obtains module, is used for receiving described parameter and obtains the module input parameter and export the control module of control signal and be used for described control signal is outputed to the control signal output module of described voltage conversion unit or actuator.
3. large power, electrically pool device according to claim 2, it is characterized in that described parameter obtains module and comprises be used to the current sampling device of obtaining current current value on the described passage, for the voltage sampling device of obtaining magnitude of voltage on the described passage and for the temperature acquisition device of obtaining described battery unit Current Temperatures.
4. large power, electrically pool device according to claim 3, it is characterized in that described control signal output module comprises that the signal for the output current that will control described voltage conversion device is transferred to the output current control device of described voltage conversion device, the signal that is used for control the output voltage of described voltage conversion device is transferred to the output voltage-operated device of described voltage conversion device and is used for the battery input disconnection control device that the passage of the described battery unit of output control and described voltage conversion unit is switched on or switched off.
5. large power, electrically pool device according to claim 4 is characterized in that, also comprise on the passage that is serially connected in described battery unit and described voltage conversion unit, dropped into by described battery to disconnect first switch that control device is controlled its break-make.
6. according to any described large power, electrically pool device of claim 1-5, it is characterized in that the two-way DC/DC converter of voltage conversion unit for when battery unit has energy, powering, when output has applied voltage, charge to battery unit to load output.
7. large power, electrically pool device according to claim 6 is characterized in that, described DC/DC converter comprises two-way anti-sharp DC converter.
8. large power, electrically pool device according to claim 6, it is characterized in that described DC/DC converter comprises the voltage transitions control unit of the first voltage generation unit that is connected with described battery unit, the second voltage generation unit that is connected with described a plurality of voltage conversion unit outputs, the described first voltage generation unit of control and the described second voltage generation unit; The described first voltage generation unit comprises that its output is transported to first voltage sampling apparatus and first current sampling device of described voltage transitions control unit input respectively; The described second voltage generation unit comprises that its output is transported to second voltage sampling apparatus and second current sampling device of described voltage transitions control unit input respectively.
9. large power, electrically pool device according to claim 8 is characterized in that, the described first voltage generation unit comprises non-isolation reversible transducer or stopping direct current converter, and the described second voltage generation unit comprises stopping direct current converter or non-isolation reversible transducer; There is and only have one to be non-isolation reversible transducer in the described first voltage generation unit and the second voltage generation unit.
10. large power, electrically pool device according to claim 9 is characterized in that, described non-isolation reversible transducer comprise forward boost reverse reduction voltage circuit, the forward step-down is oppositely boosted or forward and reverse lifting circuit.
11. large power, electrically pool device according to claim 6 is characterized in that, when input voltage and output voltage did not need to isolate, described DC/DC converter comprised non-isolation two-way DC converter.
12. large power, electrically pool device according to claim 9, it is characterized in that described isolated DC converter comprises following circuit: former limit half-bridge secondary half-bridge circuit, former limit half-bridge secondary push-pull circuit, former limit half-bridge secondary full-bridge circuit, former limit recommend that secondary half-bridge circuit, former limit are recommended the secondary push-pull circuit, secondary full-bridge circuit, former limit full-bridge secondary half-bridge circuit, former limit full-bridge secondary push-pull circuit or former limit full-bridge secondary full-bridge circuit are recommended in former limit.
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| CN101931243A (en) * | 2009-06-25 | 2010-12-29 | 上海空间电源研究所 | Battery pack management system based on wireless network and control method thereof |
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2011
- 2011-01-21 CN CN 201110024236 patent/CN102064592B/en active Active
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