CN107482917A - The integrated three port power converters of one kind - Google Patents
The integrated three port power converters of one kind Download PDFInfo
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- CN107482917A CN107482917A CN201610405112.4A CN201610405112A CN107482917A CN 107482917 A CN107482917 A CN 107482917A CN 201610405112 A CN201610405112 A CN 201610405112A CN 107482917 A CN107482917 A CN 107482917A
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- 238000004804 winding Methods 0.000 claims abstract description 41
- 238000002955 isolation Methods 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- 238000004146 energy storage Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 210000000352 storage cell Anatomy 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
- H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
- H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
- H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/3353—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Inverter Devices (AREA)
Abstract
The integrated three port power converters of one kind, the power inverter includes the transformer with three independent windings, first voltage type inversion unit, second voltage type inversion unit, output rectification unit, control module unit and port P1, P2 and P3, wherein, a port P3 is as load port, and two other port P1, P2 is as source or load port；Port P3 is connected with output rectification unit, the port P1 is connected with first voltage type inversion unit, the port P2 is connected with second voltage type inversion unit, the independent winding of one of transformer is connected with the output rectification unit, the first voltage type inversion unit, second voltage type inversion unit are connected with two other independent winding of transformer respectively, and the first voltage type inversion unit, second voltage type inversion unit, the controlled switch of output rectification unit are connected with the control module unit.Centralized Control of the present invention, cost is low, reliability is good.
Description
Technical field
The present invention relates to the invention belongs to electric and electronic power conversion field, and in particular to the three port power converters in being applied in electric automobile.
Background technology
As new energy develops, the especially development of electric automobile, there is the power conversion demand between multiport, and section ports power conversion demand is transmitted in both directions.And practical situations are in electric automobile at present：From power network commutating DC high-pressure side to high-voltage energy storage battery-end, realized substantially using AC/DC converters, commonly referred to as charger；And power network end high direct voltage is returned to using DC/AC converters from high-voltage energy storage battery-end to realize, commonly referred to as inverter（Part low side demand does not configure the inversion module）；From high-voltage energy storage battery-end to low-voltage electrical apparatus（Battery）Then realized using DC/DC converters at end；From power network commutating DC high-pressure side to low-voltage electrical apparatus end, realized currently without corresponding module.In order to complete function above, three are at present at least used to be realized with upper module, cost is high, volume is big, weight weight；Again because intermodule is separately controlled, optimized design is hardly resulted in；There is also larger challenge for reliability.
The content of the invention
In order to overcome the shortcomings of to be separately controlled present in electric automobile power conversion, cost is high, reliability is poor, and the present invention provides the integrated three port power converters that a kind of centralized Control, cost are low, reliability is good.
The technical solution adopted for the present invention to solve the technical problems is：
The integrated three port power converters of one kind, the power inverter includes the transformer with three independent windings, first voltage type inversion unit, second voltage type inversion unit, output rectification unit, control module unit and port P1, P2 and P3, wherein, a port P3 is as load port, and two other port P1, P2 is as source or load port；Port P3 is connected with output rectification unit, the port P1 is connected with first voltage type inversion unit, the port P2 is connected with second voltage type inversion unit, the independent winding of one of transformer is connected with the output rectification unit, the first voltage type inversion unit, second voltage type inversion unit are connected with two other independent winding of transformer respectively, and the first voltage type inversion unit, second voltage type inversion unit, the controlled switch of output rectification unit are connected with the control module unit.
Further, the power inverter also includes the first impedance matching unit and the second impedance matching unit, the first voltage type full bridge unit is connected with first impedance matching unit, the independent winding connection in two other independent winding of first impedance matching unit and transformer；The second voltage type full bridge unit is connected with second impedance matching unit, another independent winding connection in two other independent winding of second impedance matching unit and transformer.
Further, first impedance matching unit and/or the second impedance matching unit use an inductance.
The transformer is electrically isolated from one another to be provided with three independent windings on same iron core between three independent windings.
The first voltage type inversion unit and second voltage type inversion unit are voltage-type full bridge unit, the voltage-type full bridge unit forms two bridge arms in parallel by four power tubes, one midpoint of bridge arm connects an electric capacity, it is connected by the electric capacity with impedance matching unit, another midpoint of bridge arm is connected with impedance matching unit.It is of course also possible to it is half-bridge form.
The output rectification unit is full wave rectifying unit, it is described to be made up of two power tubes and an inductance, two of which power tube and inductance are connected with a separate port of three-winding transformer respectively, two power tube other ends are connected after being connected with port P3, and inductance other end is connected with port P3.It is of course also possible to it is half waveshape.
Described control module unit includes sampling and isolation circuit, modulate circuit, calculating and control circuit and isolation and the drive circuit for being used to gather the voltage and current signal of each port, the sampling and isolation circuit are connected with modulate circuit, the modulate circuit with it is described calculating and control circuit be connected, it is described calculate and control circuit with it is described isolate and drive circuit connection.The chip with digital operation processing such as DSP or ARM can be used.
In the first voltage type inversion unit and second voltage type inversion unit, the power tube is controlled tr tube.Such as metal-oxide-semiconductor, IGBT.
In the output rectification unit, power tube is uncontrollable power diode or controlled tr tube, such as metal-oxide-semiconductor.
The present invention technical concept be：Special case of the three port reversible transducers as multiport converter, already turn into a new study hotspot, it comes from the application of new energy, especially photovoltaic, wind-power electricity generation and battery energy storage etc. are applied, each port is using voltage-type/current mode full bridge unit, voltage-type/current mode half-bridge cells, voltage-type/current mode boosting unit, or it is combined, power can use two-way changing between each port.
The research of three port reversible transducers with reference to more than, and from electric automobile practical application, the present invention proposes a kind of integrated three port power converters, will effectively reduce cost, improves the reliability of product and the flexibility of control, has very strong market application foreground.
The integrated three port power converters, by centralized Control, control the power tube of different units, and to realize, power is converted to two-way between port P1 and P2, port P1 and P2 power between the P3 of port is converted to it is unidirectional, so as to realize：Power network rectification and come high direct voltage（P2 or P1）To high-voltage energy storage cell voltage（P1 or P2）And low-voltage electrical apparatus（Battery）（P3）Charged, high-voltage energy storage cell voltage（P1 or P2）Can be by inversion to power network high direct voltage（P2 or P1）Return to energy, high-voltage energy storage cell voltage（P1 or P2）To low-voltage electrical apparatus（Battery）（P3）Charged.It is so designed that, the functions of modules of more than three is realized by a module, effectively reduces number of devices, reduce cost, reduce volume, improves reliability so that there is the very strong market competitiveness using the product of the technology.
Beneficial effects of the present invention are mainly manifested in：The invention is applied on electric automobile, the multiple modules used at present in electric automobile can be substituted, reaching reduces cost, reduces volume and reduce weight.Controlled by system, being optimal design, larger social benefit will be produced.
Brief description of the drawings
Fig. 1 is the topological line map of the first preferred embodiment of the invention；
Fig. 2 is the topological line map of the second preferred embodiment of the invention；
Fig. 3 is the topological line map of the 3rd preferred embodiment of the invention；
Fig. 4 is the topological line map of the 4th preferred embodiment of the invention；
Fig. 5 is the topological line map of the 5th preferred embodiment of the invention；
Fig. 6 is the topological line map of the 6th preferred embodiment of the invention；
Fig. 7 is the topological line map of the 7th preferred embodiment of the invention；
Fig. 8 is the topological line map of the 8th preferred embodiment of the invention；
Fig. 9 is the theory diagram of control module unit.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
1~Fig. 9 of reference picture, the integrated three port power converters of one kind, the power inverter includes the transformer 20 with three independent windings, first voltage type inversion unit 21, second voltage type inversion unit 22, output rectification unit 23, control module unit 11 and port P1, P2 and P3, wherein, a port P3 is as load port, and two other port P1, P2 is as source or load port；Port P3 is connected with output rectification unit 23, the port P1 is connected with first voltage type inversion unit 21, the port P2 is connected with second voltage type inversion unit 22, the independent winding of one of transformer is connected with the output rectification unit 23, the first voltage type inversion unit 21, second voltage type inversion unit 22 are connected with two other independent winding of transformer 20 respectively, and the first voltage type inversion unit 21, second voltage type inversion unit 22, the controlled switch of output rectification unit 23 are connected with the control module unit 11.
Further, the power inverter also includes the first impedance matching unit 24 and the second impedance matching unit 25, the first voltage type inversion unit 21 is connected with first impedance matching unit 24, and first impedance matching unit 24 is connected with an independent winding in two other independent winding of transformer；The second voltage type inversion unit 22 is connected with second impedance matching unit 25, and second impedance matching unit 25 is connected with another independent winding in two other independent winding of transformer.
Further, the impedance matching unit 25 of the first impedance matching unit 24 and/or second uses an inductance.
As shown in figure 1, disclosing the detailed topological diagram for having the first preferred embodiment of the invention, mainly include as follows.
Control module unit 11, including signal sampling and isolation circuit, signal conditioning circuit, calculating and control circuit, output isolation and drive circuit, Fig. 9 are its detailed functional block diagram；
Transformer 20, for a transformer with three independent windings, three windings are wound on same iron core jointly, and electrically completely isolated between three winding.Winding A1B1 is connected with the first impedance matching unit 24, and winding A2B2 is connected with the second impedance matching unit 25, and winding A3N3B3 is connected with output rectification unit, and wherein A3 and B3 are connected with power tube S9 and S10 one end respectively, and N3 is connected with inductance L3 one end.
First impedance matching unit 24, A1 in Transformer Winding A1B1 is connected for inductance L1, a L1 one end, other end is connected with C1 one end in voltage full bridge unit.
Second impedance matching unit 25, A2 in Transformer Winding A2B2 is connected for inductance L2, a L2 one end, other end is connected with C2 one end in voltage full bridge unit.
First voltage type inversion unit 21, it is made up of four switching tubes S1, S2, S3, S4 and electric capacity C1, S1 and S2 is composed in series a bridge arm, and midpoint is connected with electric capacity C1 one end；S3 and S4 is composed in series another bridge arm, and midpoint is directly connected with B1 in Transformer Winding A1B1.S1 and S3 and S2 is directly output as port P1 with S4 tie points.
Second voltage type inversion unit 22, it is made up of four switching tubes S5, S6, S7, S8 and electric capacity C2, S5 and S6 is composed in series a bridge arm, and midpoint is connected with electric capacity C2 one end；S7 and S8 is composed in series another bridge arm, and midpoint is directly connected with B2 in Transformer Winding A2B2.S5 and S7 and S6 is directly output as port P2 with S8 tie points.
Rectification unit 23 is exported, is made up of two power tubes S9, S10 and an inductance L3, and is connected respectively with Transformer Winding A3N3B3, and S9 and S10 other ends export with inductance L3 other ends after being connected and are used as port P3.
Transformer 20, first voltage type inversion unit 21, second voltage type inversion unit 22, output rectification unit 23, the first impedance matching unit 24 and the second impedance matching unit 25 form power conversion circuit part 10.
In addition to above first embodiment, the present invention is able to other change designs and is achieved.
As shown in Fig. 2 for the detailed topological diagram of the second preferred embodiment, its basic framework and first embodiment are essentially identical, and what need to be emphasized is：An inductance L1 in former first impedance matching unit 24 is become into two inductance, it is L11 to increase inductance newly.Circuit can be made more symmetrical, and contribute to inductance to radiate.
As shown in figure 3, being the detailed topological diagram of the 3rd preferred embodiment, its basic framework and first embodiment are essentially identical, and what need to be emphasized is：An inductance L1 in former first impedance matching unit 24 is taken away so that for the function by inductance L2 in the second impedance matching unit 25 to complete, reaching reduces cost, improves competitiveness.
As shown in figure 4, being the detailed topological diagram of the 4th preferred embodiment, its basic framework and first embodiment are essentially identical, it is emphasized that explanation is：Change an inductance L2 in former second impedance matching unit 25 into two inductance, it is L12 to increase inductance newly.Circuit can be made more symmetrical, and contribute to inductance to radiate.
As shown in figure 5, being the detailed topological diagram of the 5th preferred embodiment, its basic framework and first embodiment are essentially identical, and what need to be emphasized is：An inductance L2 in former second impedance matching unit 25 is taken away so that for the function by inductance L1 in the first impedance matching unit 24 to complete, reaching reduces cost, improves competitiveness.
As shown in fig. 6, being the detailed topological diagram of the 6th preferred embodiment, its basic framework and first embodiment are essentially identical, and what need to be emphasized is：Inductance L1 and L2 in former first impedance matching unit 24 and the second impedance matching unit 25 is taken away, the inductive function is realized by using the leakage inductance of transformer, reduces device, reaching reduces cost and raising competitiveness.
As shown in fig. 7, being the detailed topological diagram of the 7th preferred embodiment, its basic framework and first embodiment are essentially identical, it is emphasized that explanation is：Output rectification unit 23 is become by full-wave rectification and flows rectification at double.Inductance L3 and switching tube S9 is commonly connected to A3, inductance L4 and switching tube S10 and is commonly connected to B3, and inductance L3 is connected with L4 other ends and switching tube S9 is connected with S10 other ends collectively constitutes output port P3.
As shown in figure 8, being the detailed topological diagram of the 8th preferred embodiment, its basic framework and first embodiment are essentially identical, it is emphasized that explanation is：First voltage type inversion unit 21 and second voltage type inversion unit 22 are become into voltage half bridge unit, electric capacity C3, C4 and C5, C6 substitute switching tube S3, S4 and S5, S6 respectively.
It is described above, only it is presently preferred embodiments of the present invention, any formal limitation not is made to the present invention, although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention, any person skilled in the art, in the range of technical solution of the present invention is not departed from, when the technology contents using the disclosure above make combination or a little change or the equivalent embodiment for being modified to equivalent variations, in every case it is without departing from technical solution of the present invention content, any simple modification that embodiment of the technical spirit to more than according to the present invention is made, equivalent variations and modification, in the range of still falling within technical solution of the present invention.
Claims (8)
1. the integrated three port power converters of one kind, it is characterised in that：The power inverter includes the transformer with three independent windings, first voltage type inversion unit, second voltage type inversion unit, output rectification unit, control module unit and port P1, P2 and P3, wherein, a port P3 is as load port, and two other port P1, P2 is as source or load port；Port P3 is connected with output rectification unit, the port P1 is connected with first voltage type inversion unit, the port P2 is connected with second voltage type inversion unit, the independent winding of one of transformer is connected with the output rectification unit, the first voltage type inversion unit, second voltage type inversion unit are connected with two other independent winding of transformer respectively, and the first voltage type inversion unit, second voltage type inversion unit, the controlled switch of output rectification unit are connected with the control module unit.
2. integrated three port power converters as claimed in claim 1, it is characterised in that：The power inverter also includes the first impedance matching unit and the second impedance matching unit, the first voltage type inversion unit is connected with first impedance matching unit, the independent winding connection in two other independent winding of first impedance matching unit and transformer；The second voltage type inversion unit is connected with second impedance matching unit, another independent winding connection in two other independent winding of second impedance matching unit and transformer.
3. integrated three port power converters as claimed in claim 2, it is characterised in that：First impedance matching unit and/or the second impedance matching unit use an inductance.
4. the integrated three port power converters as described in one of claim 1 ~ 3, it is characterised in that：The transformer is electrically isolated from one another to be provided with three independent windings on same iron core between three independent windings.
5. the integrated three port power converters as described in one of claim 1 ~ 3, it is characterised in that：The first voltage type inversion unit and second voltage type inversion unit are voltage-type full bridge unit, the voltage-type full bridge unit forms two bridge arms in parallel by four power tubes, one midpoint of bridge arm connects an electric capacity, it is connected by the electric capacity with impedance matching unit, another midpoint of bridge arm is connected with impedance matching unit.
6. the integrated three port power converters as described in one of claim 1 ~ 3, it is characterised in that：The output rectification unit is full wave rectifying unit, it is described to be made up of two power tubes and an inductance, two of which power tube and inductance are connected with a separate port of three-winding transformer respectively, two power tube other ends are connected after being connected with port P3, and inductance other end is connected with port P3.
7. the integrated three port power converters as described in one of claim 1 ~ 3, it is characterised in that：Described control module unit includes sampling and isolation circuit, modulate circuit, calculating and control circuit and isolation and the drive circuit for being used to gather the voltage and current signal of each port, the sampling and isolation circuit are connected with modulate circuit, the modulate circuit with it is described calculating and control circuit be connected, it is described calculate and control circuit with it is described isolate and drive circuit connection.
8. integrated three port power converters as claimed in claim 5, it is characterised in that：The power tube is controlled tr tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610405112.4A CN107482917B (en) | 2016-06-08 | 2016-06-08 | Integrated three-port power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610405112.4A CN107482917B (en) | 2016-06-08 | 2016-06-08 | Integrated three-port power converter |
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| Publication Number | Publication Date |
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| CN107482917A true CN107482917A (en) | 2017-12-15 |
| CN107482917B CN107482917B (en) | 2020-11-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201690364U (en) * | 2010-05-21 | 2010-12-29 | 深圳市核达中远通电源技术有限公司 | Circuit for preventing current flowing backwards |
| CN102723873A (en) * | 2012-06-01 | 2012-10-10 | 燕山大学 | Dual-input full-isolation integrated current transformer |
| CN103904905A (en) * | 2014-04-18 | 2014-07-02 | 燕山大学 | Isolated type three-port two-way DC/DC converter |
| CN104134991A (en) * | 2014-08-22 | 2014-11-05 | 中国人民解放军国防科学技术大学 | Three-port direct-current bus voltage stabilization module for direct-current microgrid |
| CN204068710U (en) * | 2014-08-18 | 2014-12-31 | 国家电网公司 | A Novel Three-Port Isolated Bipolar DC Converter |
-
2016
- 2016-06-08 CN CN201610405112.4A patent/CN107482917B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201690364U (en) * | 2010-05-21 | 2010-12-29 | 深圳市核达中远通电源技术有限公司 | Circuit for preventing current flowing backwards |
| CN102723873A (en) * | 2012-06-01 | 2012-10-10 | 燕山大学 | Dual-input full-isolation integrated current transformer |
| CN103904905A (en) * | 2014-04-18 | 2014-07-02 | 燕山大学 | Isolated type three-port two-way DC/DC converter |
| CN204068710U (en) * | 2014-08-18 | 2014-12-31 | 国家电网公司 | A Novel Three-Port Isolated Bipolar DC Converter |
| CN104134991A (en) * | 2014-08-22 | 2014-11-05 | 中国人民解放军国防科学技术大学 | Three-port direct-current bus voltage stabilization module for direct-current microgrid |
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