CN205265341U - Dc -to -ac converter alternating current -direct current double - circuit power supply system - Google Patents
Dc -to -ac converter alternating current -direct current double - circuit power supply system Download PDFInfo
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- CN205265341U CN205265341U CN201521071882.7U CN201521071882U CN205265341U CN 205265341 U CN205265341 U CN 205265341U CN 201521071882 U CN201521071882 U CN 201521071882U CN 205265341 U CN205265341 U CN 205265341U
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Abstract
The utility model relates to a dc -to -ac converter alternating current -direct current double - circuit power supply system, include: NULL (2.1), direct -current input (2.2), the two connects a dc bus (2.4) after all passing through same rectifier module (2.3), and first one way DCDC power module (2.5), double - circuit DCDC power module (2.6), second one way DCDC power module (2.7) are connected respectively to the output of dc bus (2.4). Dc -to -ac converter alternating current -direct current double - circuit power supply system, the part power supplies such as mainboard of adopting switching power supply to give the dc -to -ac converter have substituted directly UPS, the cost is lower, life cycle is longer moreover, long -term use need not maintained and changed.
Description
Technical field
The utility model relates to Power Electronic Technique, is a kind of inverter AC-DC two-way specificallyElectric power system.
Background technology
Existing inverter AC-DC two-way electric power system, its main circuit divides two parts, a partBe AC-DC conversion, another part is DC-DC conversion, both elementary high pressure isolation, and secondary is defeatedGo out voltage parallel work, as shown in Figure 1. Comprise:
Exchange input 1, this input connects following power module:
The first single channel AC/DC power module 3, this module provides the parts such as mainboard, liquid crystal power supply;
The second single channel AC/DC power module 5, this module provides and drives contactor coil power supply;
Two-way AC/DC power module 4, this module provides sensor element power supply.
Direct current input 2, this input connects following power module:
The first single channel DC/DC power module 6, this module provides the parts such as mainboard, liquid crystal power supply;
The second single channel DC/DC power module 8, this module provides and drives contactor coil power supply;
Two-way DC/DC power module 7, this module provides sensor element power supply.
As shown in Figure 1, in traditional design, use alternating current inlet highway and direct currentInlet highway, two each self-configuring power modules of bus, use two buses to carry out Redundancy Design,In the time that dc bus has electricity, power to DC/DC power module by dc bus, as direct current motherLine is powered to AC/DC power module by ac bus during without electricity. This scheme exists three and asksTopic:
One is to use AC/DC and DC/DC two to overlap power supply module, and cost is higher;
The 2nd, be switched to ac bus when power supply at dc bus, AC/DC power module switch andDC/DC power module is the power-supply fluctuation that has moment switching, and this scheme exists equipment is poweredThere is the risk of moment dead electricity;
It is all in running order that the 3rd, AC/DC and DC/DC two overlap power supply module, and power supply damagesConsume greatlyr, system effectiveness is not high.
What existing high-power inverter power supply was used is to be interrupted power supply (uninterruptiblePowersystem, UPS) technology, in the time of commercial power interruption (abnormal time), UPS can be at 4-10The mode of in millisecond or in " zero " break period, the power supply of battery being changed by inversion is to negativeCarry and continue supply electric power, make electric component in inverter maintain normal work; But UPS sideCase Shortcomings, accumulator cell charging and discharging number of times is limited, and the general UPS life-span was in 2 years; And it is contraryIt is generally more than 3 years becoming device quality guarantee period, and in 3 years, inverter UPS will change under normal circumstancesOnce.
Utility model content
For the defect existing in prior art, it is a kind of contrary that the purpose of this utility model is to provideBecome device AC-DC two-way electric power system, directly substituted UPS, cost is lower, and Life CyclePhase is longer, and long-term use does not need to safeguard and change.
For reaching above object, the technical scheme that the utility model is taked is:
A kind of inverter AC-DC two-way electric power system, is characterized in that, comprising: exchange input2.1, direct current input 2.2, the two all connects one after same rectification filtering module 2.3Dc bus 2.4,
The output of dc bus 2.4 connect respectively the first single channel DC/DC power module 2.5,Two-way DC/DC power module 2.6, the second single channel DC/DC power module 2.7.
On the basis of technique scheme, the first single channel DC/DC power module 2.5 provides mainThe parts such as plate, liquid crystal power supply,
The second single channel DC/DC power module 2.7 provides and drives contactor coil power supply,
Two-way DC/DC power module 2.6 provides sensor element power supply.
On the basis of technique scheme, the voltage range of described interchange input 2.1 is180V～510V，
Exchanging interchange output or the three-phase 380V that input 2.1 is inverter exchanges or single-phase 220VExchange.
On the basis of technique scheme, described direct current input 2.2 is from inverter direct current motherLine or the output of photovoltaic cell group string direct current.
On the basis of technique scheme, the voltage of described dc bus 2.4 comprises but does not limitIn direct current 157V～1400V.
On the basis of technique scheme, described the first single channel DC/DC power module 2.5 wrapsDraw together but be not limited to 48 24 15 12 5V single channel DC/DC power module.
On the basis of technique scheme, described two-way DC/DC power module 2.6 comprise butBe not limited to ± 24 ± 15 ± 12 ± 5V two-way DC/DC power module.
On the basis of technique scheme, described the second single channel DC/DC power module 2.7 wrapsDraw together but be not limited to 220 60 48 24 single channel DC/DC power modules.
On the basis of technique scheme, in rectification filtering module 2.3, use diodes in parallelSwitch.
Inverter AC-DC two-way electric power system described in the utility model, adopts Switching Power Supply to giveThe power supply of the part such as the mainboard of inverter, has directly substituted UPS, and cost is lower, and Life CyclePhase is longer, and long-term use does not need to safeguard and change.
Inverter AC-DC two-way electric power system described in the utility model, has the following beneficial effect that hasReally:
1, use a set of DC/DC power module, cost is lower;
2, use a set of DC/DC power module power supply, switch the risk of dead electricity without moment, wholeStream filtration module uses diodes in parallel to switch, and switch speed is nanosecond, and reliability is higher,Voltage pulsation is less;
3, use a set of power module power supply, half that overall losses is little, system effectiveness is greatlyImprove.
Brief description of the drawings
The utility model has following accompanying drawing:
The existing inverter AC-DC two-way of Fig. 1 electric power system schematic diagram;
Fig. 2 system schematic of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 2, inverter AC-DC two-way electric power system described in the utility model, bagDraw together:
Exchange input 2.1, direct current input 2.2, the two all passes through same rectification filtering module2.3 rear connection one dc bus 2.4,
The output of dc bus 2.4 connect respectively the first single channel DC/DC power module 2.5,Two-way DC/DC power module 2.6, the second single channel DC/DC power module 2.7,
The first single channel DC/DC power module 2.5 provides the parts such as mainboard, liquid crystal power supply,
The second single channel DC/DC power module 2.7 provides and drives contactor coil power supply,
Two-way DC/DC power module 2.6 provides sensor element power supply.
The utility model has been revised the connection design of power module, a dc bus 4 of useSystem has been simplified in design greatly, has improved efficiency, has reduced cost, and reliability is higher.
On the basis of technique scheme, the voltage range of described interchange input 2.1 is180V～510V，
Exchanging interchange output or the three-phase 380V that input 2.1 is inverter exchanges or single-phase 220VExchange.
On the basis of technique scheme, described direct current input 2.2 is from inverter direct current motherLine or the output of photovoltaic cell group string direct current.
On the basis of technique scheme, the voltage of described dc bus 2.4 comprises but does not limitIn direct current 157V～1400V.
On the basis of technique scheme, described the first single channel DC/DC power module 2.5 wrapsDraw together but be not limited to 48 24 15 12 5V single channel DC/DC power module. Can be real by prior artExecute, the application is without improvement.
On the basis of technique scheme, described two-way DC/DC power module 2.6 comprise butBe not limited to ± 24 ± 15 ± 12 ± 5V two-way DC/DC power module. Can be real by prior artExecute, the application is without improvement.
On the basis of technique scheme, described the second single channel DC/DC power module 2.7 wrapsDraw together but be not limited to 220 60 48 24 single channel DC/DC power modules. Can implement by prior art,The application is without improvement.
On the basis of technique scheme, in rectification filtering module 2.3, use diodes in parallelSwitch.
Compared to the prior art, the main difference of the application is:
1, the power module quantity of native system driving mainboard and liquid crystal even load is 1, and other areSystem quantity is 2;
2, the power module quantity of native system driving sensor even load is 1, other system numberAmount is 2;
3, to drive the power module quantity of the inductive loads such as contactor be 1 to native system, and other areSystem quantity is 2;
4, native system double loop power supply point in parallel is in dc bus high-pressure side, and other system is in low pressureLateral load front end.
It is known that the content not being described in detail in this description belongs to professional and technical personnel in the fieldPrior art.
Claims (9)
1. an inverter AC-DC two-way electric power system, is characterized in that, comprising: exchangeInput (2.1), direct current input (2.2), the two all passes through same rectification filtering module (2.3)Rear connection one dc bus (2.4),
The output of dc bus (2.4) connects respectively the first single channel DC/DC power module(2.5), two-way DC/DC power module (2.6), the second single channel DC/DC power module (2.7).
2. inverter AC-DC two-way electric power system as claimed in claim 1, its feature existsIn: the first single channel DC/DC power module (2.5) provides the parts such as mainboard, liquid crystal power supply,
The second single channel DC/DC power module (2.7) provides and drives contactor coil power supply,
Two-way DC/DC power module (2.6) provides sensor element power supply.
3. inverter AC-DC two-way electric power system as claimed in claim 1, its feature existsIn: the voltage range of described interchange input (2.1) is 180V～510V,
Exchange interchange output or three-phase 380V interchange or single-phase that input (2.1) is inverter220V exchanges.
4. inverter AC-DC two-way electric power system as claimed in claim 1, its feature existsIn: described direct current input (2.2) is straight from inverter dc bus or photovoltaic cell group stringStream output.
5. inverter AC-DC two-way electric power system as claimed in claim 1, its feature existsIn: the voltage of described dc bus (2.4) includes but not limited to direct current 157V～1400V.
6. inverter AC-DC two-way electric power system as claimed in claim 1, its feature existsIn: described the first single channel DC/DC power module (2.5) includes but not limited to48 24 15 12 5V single channel DC/DC power module.
7. inverter AC-DC two-way electric power system as claimed in claim 1, its feature existsIn: described two-way DC/DC power module (2.6) include but not limited to ± 24 ± 15 ± 12± 5V two-way DC/DC power module.
8. inverter AC-DC two-way electric power system as claimed in claim 1, its feature existsIn: described the second single channel DC/DC power module (2.7) include but not limited to 220 60 48 24Single channel DC/DC power module.
9. inverter AC-DC two-way electric power system as claimed in claim 1, its feature existsIn: in rectification filtering module (2.3), use diodes in parallel to switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521071882.7U CN205265341U (en) | 2015-12-21 | 2015-12-21 | Dc -to -ac converter alternating current -direct current double - circuit power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521071882.7U CN205265341U (en) | 2015-12-21 | 2015-12-21 | Dc -to -ac converter alternating current -direct current double - circuit power supply system |
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| CN205265341U true CN205265341U (en) | 2016-05-25 |
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| CN201521071882.7U Active CN205265341U (en) | 2015-12-21 | 2015-12-21 | Dc -to -ac converter alternating current -direct current double - circuit power supply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683249A (en) * | 2018-06-07 | 2018-10-19 | 常州普莱德新能源电池科技有限公司 | One kind supplies power with double circuit system and method |
| CN110707922A (en) * | 2019-08-31 | 2020-01-17 | 苏州浪潮智能科技有限公司 | Server switching power supply |
-
2015
- 2015-12-21 CN CN201521071882.7U patent/CN205265341U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683249A (en) * | 2018-06-07 | 2018-10-19 | 常州普莱德新能源电池科技有限公司 | One kind supplies power with double circuit system and method |
| CN110707922A (en) * | 2019-08-31 | 2020-01-17 | 苏州浪潮智能科技有限公司 | Server switching power supply |
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