CN204012912U - A kind of AC/DC integrated power supply - Google Patents
A kind of AC/DC integrated power supply Download PDFInfo
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- CN204012912U CN204012912U CN201420441430.2U CN201420441430U CN204012912U CN 204012912 U CN204012912 U CN 204012912U CN 201420441430 U CN201420441430 U CN 201420441430U CN 204012912 U CN204012912 U CN 204012912U
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- power supply
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Abstract
The utility model relates to a kind of AC/DC integrated power supply.The three-phase input power that transformer station provides and the single-phase out-put supply providing by solar inverter are provided this power supply, single-phase out-put supply exchanges through one by a solar energy input isolating switch and C in three-phase input power that to input isolating switch grid-connected, grid-connected rear circuit is connected with inversion module through a single-phase isolating transformer and carries out ac converter output, grid-connected rear circuit also connects 2-4 the charging module being connected in parallel, the output of charging module is connected on DC master row I provides direct current 220V to export, DC master row I provides direct current 48V to export by two DC converter in parallel.The utility model adopts the input of two-way AC power that reliable working power, its output packet 380V/220V AC power, 220V/110V DC power supply, 48V communication DC power supply are provided.Solar energy, as emergency power supply, guarantees during mobile radio station is stopped transport that mobile radio station affiliated facility runs well simultaneously.
Description
Technical field
The utility model belongs to mobile model transformer station field of power supplies, relates in particular to a kind of ultracapacitor and solar energy AC/DC integrated power supply that is applied to 110 (66) kilovolts of intelligent mobile substations.
Background technology
At present, movable transformer pack in North America and Europe be commonly employed, the movable transformer pack operation that it is reported in Beijing, the ground such as Gansu, Zhengzhou has many 10kV, the ground such as Dalian, Shandong and Sichuan have the movable transformer pack of many 110 (66) kV in operation.
Movable transformer pack adopts vehicle-mounted mode completely, trailer, case change, high-tension cable capstan winch, low-voltage cable capstan winch etc., consists of.Have volume little, convenient mobile, electrical arrangement rationally, compact conformation, transformer capacity be little, it is few to allot, and is convenient to remote control, remote measurement, and energy-conserving and environment-protective, environment are harmonious, save the advantages such as occupation of land.
At present, the traditional lead-acid batteries of the many employings in portable table power station, has maintenance cost high, and the useful life of battery is short, the problem of environmental pollution.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of be intended to solve output packet 380V/220V AC power, 220V/110V DC power supply, 48V communication DC power supply, solar energy, as emergency power supply, guarantees ultracapacitor and the solar energy AC/DC integrated power supply that mobile radio station affiliated facility runs well simultaneously during mobile radio station is stopped transport.
The utility model is to realize like this, a kind of AC/DC integrated power supply, the three-phase input power that transformer station provides and the single-phase out-put supply providing by solar inverter are provided this power supply, single-phase out-put supply exchanges through one by a solar energy input isolating switch and C in three-phase input power that to input isolating switch grid-connected, grid-connected rear link tester is crossed a single-phase isolating transformer and is connected with inversion module and carries out ac converter output, grid-connected rear circuit also connects 2-4 the charging module being connected in parallel, the output of charging module is connected on DC master row I provides direct current 220V to export, DC master row I provides direct current 48V to export by two DC converter in parallel.
Further, the output of charging module is connected on DC master row II by a capacitor charging contactor, then DC master row II is connected with DC master row I by wire, on DC master row II, be connected with ultracapacitor, the upper input that is connected to inversion module by inverter direct current input contactor of DC master row I.
Further, between DC master row II and DC master row I, be connected in parallel to respectively a DC/DC module, the 2nd DC/DC module and the 3rd DC/DC module, a DC/DC module, the 2nd DC/DC module and the 3rd DC/DC module are respectively by contactor control connection.
Compared with prior art, beneficial effect is the utility model: the utility model adopts two-way AC power to input 1 rerouting station and provides (three-phase 380VAC/50Hz) with becoming, and another route solar grid-connected inverter provides.And adopt up-to-date green energy resource-ultracapacitor to replace traditional lead-acid batteries, three tunnels power supplies provide reliable working power, its output packet 380V/220V AC power, 220V/110V DC power supply, 48V communication DC power supply for full station alternating current-direct current equipment.Solar energy, as emergency power supply, guarantees during mobile radio station is stopped transport that mobile radio station affiliated facility runs well simultaneously.
The conversion of employing low pressure, the energy during by ultracapacitor low pressure discharge also makes full use of, and has improved to greatest extent the utilance of the energy, the joint medicine energy.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram that the utility model embodiment provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment
As shown in Figure 1, a kind of AC/DC integrated power supply, the three-phase input power 1 that transformer station provides and the single-phase out-put supply 2 providing by solar inverter are provided this power supply, three-phase input power is by AC input terminal (L1, l2, L3, N1) by interchange, input A circuit breaker Q F1 output A phase respectively, exchange input B circuit breaker Q F2 output B phase, by isolating switch G1 output C phase, single-phase out-put supply is by AC input terminal (TL2, TN2) and solar energy input isolating switch G2 and C in three-phase input power through one exchange input after isolating switch G1 grid-connected, grid-connected rear circuit exchanges input circuit breaker Q F3 through an inverter, one single-phase isolating transformer T1 is connected with inversion module MK1 and carries out ac converter output, grid-connected rear circuit also connects 4 charging module (DMK1 that are connected in parallel, DMK2, DMK3, DMK4), the output of 4 charging modules is connected with respectively diode D1, diode D2 diode D3 and diode D4, the output of charging module is connected on DC master row I5 provides direct current 220V to export, DC master row I5 connects two DC converter (DYBH4 in parallel by 48V interchanger input contactor KM6, DYBH5) provide direct current 48V output.
The output of charging module is connected on DC master row II4 by a capacitor charging contactor KM1, then DC master row II4 is connected with DC master row I5 by wire, on DC master row II4, be connected with ultracapacitor 3, by capacitor charging contactor KM1, to ultracapacitor, charge, ultracapacitor 3 carries out the measurement of voltage by voltage monitoring module, the upper input that is connected to inversion module MK1 by inverter direct current input contactor KM5 of DC master row I.
Between DC master row II and DC master row I, be connected in parallel to respectively a DC/DC module DYBH1, the 2nd DC/DC module DYBH2 and the 3rd DC/DC module DYBH3, a DC/DC module DYBH1, the 2nd DC/DC module DYBH2 and the 3rd DC/DC module DYBH3 are respectively by contactor KM2, contactor KM3 and contactor KM4 control connection.
In the present embodiment, the operation principle of equipment is:
The load (charging module of inverter, 4 220VDC/5A etc.) that when normal, when normal (two-way AC power) C goes up mutually preferentially provides (its impedance is stood low with power transformation net) by solar inverter, when the load of going up mutually as C has exceeded the power grade of solar inverter, solar inverter will be limit power stage, and its complementary energy is stood mutually and provided with becoming by C.
When station has a power failure with change, A, the AC load of B phase will disconnect automatically.C phase load will be provided by solar inverter.Wherein inverter load is provided by solar inverter entirely, and load (220VDC DC load and 48VDC DC load) on direct current 220VDC, preferentially by solar inverter, by 220VDC/5A charging module, provided, after having exceeded the power grade of solar inverter, part energy is provided by ultracapacitor electric discharge.
When station has a power failure with becoming, it (may be the fault of equipment itself that solar inverter also breaks down, also may be solar cell off-capacity) time, inverter load, 220VDC DC load, 48VDC DC load will all be provided by ultracapacitor electric discharge.Traditional batteries is when being discharged to 180VDC (220VDC system), and system will be cut off output automatically, no longer electric discharge (protection storage battery, then discharge and will damage batteries, affect useful life).And this system employing is ultracapacitor, when being low to moderate 180VDC, still can continue the voltage on capacitor electric discharge, minimum can be discharged to 50VDC time and cycle-index can reach 500000 times, but now the female system of direct current II voltage is too low can not be for rear class, call for the reduction of discharging of response national energy-saving, improve the utilance of the energy, make full use of remaining energy, installed the i.e. DC/DC module DYBH1 of 3 grades of DC converters additional, the 2nd DC/DC module DYBH2 and the 3rd DC/DC module DYBH3, when voltage monitoring module monitors is more than or equal to 180VDC to the voltage at ultracapacitor two ends, ultracapacitor directly discharges to load power supply, when monitoring super capacitor electrode and be pressed in 120VDC-180VDC, be switched to a DC/DC module DYBH1, ultracapacitor voltage is transformed to stable 220VDC output, power to the load, when monitoring super capacitor electrode and be pressed in 80VDC-120VDC, be switched to the 2nd DC/DC module DYBH2, ultracapacitor voltage is converted to stable 220VDC output, power to the load, when monitoring super capacitor electrode and be pressed in 50VDC-80VDC, be switched to the 3rd DC/DC module DYBH3, ultracapacitor voltage is converted to stable 220VDC output, power to the load.For guaranteeing the continuity of power supply, while avoiding switching under critical voltage, there is output disruption, when condenser voltage has dropped to 180VDC, will start a DC/DC module DYBH1 (closed contactor KM2); When condenser voltage continues to decline, while dropping to 120V, first do not close a DC/DC module DYBH1, but first start the 2nd DC/DC module DYBH2 (closed contactor KM3), after the 2nd DC/DC module DYBH2 is stable, cut off again a DC/DC module DYBH1 (if do not cut off a DC/DC module DYBH1 always, likely because of the too low damage internal components of voltage), the startup of the 3rd DC/DC module DYBH3 (closed KM4) is with logic is identical above.When the voltage that monitors ultracapacitor two ends cuts off all loads during lower than 50V.
When voltage monitoring module monitors during higher than 253V, is cut off 220VDC load to the voltage at ultracapacitor two ends or DC master row voltage, and capacitor charging loop (disconnecting capacitor charging contactor KM1).Inverter and 48VDC load can first not cut off, because that two complete equipment can allow input voltage to 280VDC.When charging current is too high or discharging current is excessive when detecting (possible rear class short circuit), cut off charge circuit and all load circuits and with protection ultracapacitor, avoid the damage of abnormal conditions.
Because capacity of super capacitor is limited, for guaranteeing the reliability service of this device, please the large load of power consumption (as air-conditioning etc.) and unessential load are directly hung over and exchange A phase or B goes up mutually.Only have very very important load to be just connected on the output of inverter, 220VDC DC load end and 48VDC DC load end, extend the preparation time of ultracapacitor, to greatest extent to guarantee the Ability of emergency management under emergency rating.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (3)
1. an AC/DC integrated power supply, it is characterized in that, the three-phase input power that transformer station provides and the single-phase out-put supply providing by solar inverter are provided this power supply, single-phase out-put supply exchanges through one by a solar energy input isolating switch and C in three-phase input power that to input isolating switch grid-connected, grid-connected rear circuit is connected with inversion module through a single-phase isolating transformer and carries out ac converter output, grid-connected rear circuit also connects 2-4 the charging module being connected in parallel, the output of charging module is connected on DC master row I provides direct current 220V to export, DC master row I provides direct current 48V to export by two DC converter in parallel.
2. AC/DC integrated power supply as claimed in claim 1, it is characterized in that, the output of charging module is connected on DC master row II by a capacitor charging contactor, then DC master row II is connected with DC master row I by wire, on DC master row II, be connected with ultracapacitor, the upper input that is connected to inversion module by inverter direct current input contactor of DC master row I.
3. AC/DC integrated power supply as claimed in claim 2, it is characterized in that, between DC master row II and DC master row I, be connected in parallel to respectively a DC/DC module, the 2nd DC/DC module and the 3rd DC/DC module, a DC/DC module, the 2nd DC/DC module and the 3rd DC/DC module are respectively by contactor control connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441430.2U CN204012912U (en) | 2014-08-07 | 2014-08-07 | A kind of AC/DC integrated power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441430.2U CN204012912U (en) | 2014-08-07 | 2014-08-07 | A kind of AC/DC integrated power supply |
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| Publication Number | Publication Date |
|---|---|
| CN204012912U true CN204012912U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420441430.2U Expired - Fee Related CN204012912U (en) | 2014-08-07 | 2014-08-07 | A kind of AC/DC integrated power supply |
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| CN (1) | CN204012912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134933A (en) * | 2017-05-25 | 2017-09-05 | 北京重恒兴远科技有限公司 | A kind of power-supply device exported with multiple voltage grade |
-
2014
- 2014-08-07 CN CN201420441430.2U patent/CN204012912U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134933A (en) * | 2017-05-25 | 2017-09-05 | 北京重恒兴远科技有限公司 | A kind of power-supply device exported with multiple voltage grade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20210807 |