CN210007468U - kinds of mobile emergency power supply device - Google Patents
kinds of mobile emergency power supply device Download PDFInfo
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- CN210007468U CN210007468U CN201920732601.XU CN201920732601U CN210007468U CN 210007468 U CN210007468 U CN 210007468U CN 201920732601 U CN201920732601 U CN 201920732601U CN 210007468 U CN210007468 U CN 210007468U
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Abstract
The utility model relates to an kind of remove emergency power supply unit, including emergency power supply car and emergency feeder supply car, be equipped with battery system on emergency power supply car's the removal automobile body, charging device, the direct current conversion equipment, direct current monitoring device and communication management unit, battery system includes energy storage battery and battery management unit, charging device's input connects the 220V alternating current, the output divides three routes, way and energy storage battery electric connection, second way and direct current conversion equipment electric connection, aviation plug is connected to the third route, direct current conversion equipment's output divides two routes, way and battery management unit electric connection, way connection aviation plug in addition, communication management unit is connected with direct current monitoring device and battery management unit communication simultaneously, direct current monitoring device still with charging device and direct current conversion equipment communication connection, be equipped with a plurality of feeder switches on emergency feeder's the removal automobile body.
Description
Technical Field
The utility model relates to a transformer substation uses DC power supply system technical field, concretely relates to kinds of mobile emergency power supply device.
Background
The direct current power supply system is an important component of a power supply system for a power plant and a substation, a storage battery is used as an independent standby power supply of the direct current system, and provides a power supply for signal, control, switch-on and comprehensive automation when alternating current is cut off, and the storage battery is the last defense lines for ensuring the reliability of the direct current power supply system.
Disclosure of Invention
An object of the utility model is to provide an kinds of mobile emergency power supply devices, the device can be applicable to multiple job scenario, has improved the device utilization ratio, and removes, the configuration is nimble, easy to use.
In order to achieve the purpose, the technical scheme of the utility model is that kinds of mobile emergency power supply devices comprise an emergency power supply vehicle and an emergency feeder power supply vehicle, a battery system, a charging device, a direct current conversion device, a direct current monitoring device and a communication management unit are arranged on a mobile vehicle body of the emergency power supply vehicle, the battery system comprises an energy storage battery and a battery management unit, the input end of the charging device is connected with 220V alternating current, the output end of the charging device is divided into three paths, the path is electrically connected with the energy storage battery to charge the energy storage battery, the second path is electrically connected with the direct current conversion device to perform direct current voltage conversion, the third path is connected with an aviation plug to output the energy storage battery, the output end of the direct current conversion device is divided into two paths, the path is electrically connected with the battery management unit to provide working power for the energy storage battery, the path is connected with the aviation plug to output the energy storage battery, the communication management unit is simultaneously in communication connection with the direct current monitoring device and the direct current battery management unit to sample battery information in real time and transmit the command of the direct current monitoring device to the battery management unit to enable the direct current monitoring device to work in a coordinated with the emergency power supply switch, and the mobile vehicle body.
, the energy storage battery is a lithium iron phosphate battery, the battery system is a lithium iron phosphate battery system, and the nominal voltage of the lithium iron phosphate battery system is 220 VDC.
, the voltage of the output end of the DC conversion device is 48 VDC.
, the feeder switch on the emergency feeder power supply vehicle comprises a 220VDC feeder switch and a 48VDC feeder switch, and the emergency feeder power supply vehicle is provided with an aviation connector which is butted with a corresponding aviation plug on the emergency power supply vehicle.
, the emergency power supply vehicle is composed of a battery vehicle and a charging vehicle, the energy storage battery is composed of a plurality of battery boxes which are connected in series, the plurality of battery boxes are arranged on a movable vehicle body of the battery vehicle after being connected in series, the energy storage battery is provided with two output loops on the battery vehicle, direct current output loops with anti-reflux diodes are arranged, direct current output loops are arranged, and the battery management unit, the charging device, the direct current conversion device, the direct current monitoring device and the communication management unit are arranged on the movable vehicle body of the charging vehicle.
, the battery management unit (BMS) is mainly composed of a management module of the battery system, a management module of the battery cluster and an acquisition module, CAN communication is adopted between the acquisition module and the management module of the battery cluster, between the management module of the battery cluster and the management module of the battery system, and RS485 communication is adopted between the management module of the battery system and the DC monitoring device.
Compared with the prior art, the utility model has the beneficial effects that kinds of mobile emergency power supply devices that combine emergency power supply vehicle and emergency feeder supply vehicle are provided, then can use alone or cooperate the use to different work scenes, the problem of transformer substation's direct current system battery off-line nuclear capacity and the transformation of upgrading of not having a power failure has been solved simultaneously, the security and the reliability of transformer substation's direct current system operation have not only been improved, and " machines multipotency" has really been realized, the utilization ratio of mobile emergency power supply device has been improved.
Drawings
Fig. 1 is a schematic diagram of a device structure according to an embodiment of the present invention.
Fig. 2 is a schematic view of the external structure of the device according to the embodiment of the present invention.
In the figure, 1, an emergency power supply vehicle, 2, an emergency feeder power supply vehicle, 3, a charging device, 4, a direct current conversion device, 5, a direct current monitoring device, 6, a communication management unit, 7, an energy storage battery, 8, a battery management unit, 9, a battery vehicle, 10, a charging vehicle, 21-25, 220VDC feeder switches, 26, 48VDC feeder switches, 71-75 and a battery box.
Detailed Description
The present invention will be described in further detail in with reference to the accompanying drawings and specific embodiments.
The utility model provides an kinds of remove emergency power supply unit, as shown in fig. 1, 2, including emergency power supply car 1 and emergency feeder supply car 2, be equipped with battery system on emergency power supply car 1's the removal automobile body, charge (AC/DC) device 3, direct current conversion (DC/DC) device 4, direct current monitoring device 5 and communication management unit 6, battery system includes energy storage battery 7 and battery management unit 8. charging device 3's input termination 220V alternating current, the output divides three routes, way and energy storage battery 7 electric connection, for it charges, second route and direct current conversion device 4 electric connection, in order to carry out direct current voltage conversion, aviation plug is connected to third route, in order to export, the output of direct current conversion device 4 divides two routes, way and battery management unit 8 electric connection, for it provides operating power supply, in addition way connect aviation plug, in order to export simultaneously with direct current monitoring device 5 and battery management unit 6 communication connection, in order to sample the battery information in real time and convey direct current monitoring device 5, and convey the removal command of direct current monitoring device 5, in order to stabilize operating device 5 and direct current management device 5 and the last a plurality of connecting of direct current monitoring device 5 and the direct current feeder control device 8, the communication management unit is equipped with the communication control device 5, the direct current switching device is connected with the direct current feeder communication management device 5 still, the emergency feeder control device is connected.
In the embodiment, the energy storage battery 7 is a lithium iron phosphate battery, the battery system is a lithium iron phosphate battery system, the nominal voltage of the lithium iron phosphate battery system is 220VDC, the nominal voltage of a single lithium iron phosphate battery is 3.2V, in order to meet the requirement that the power supply time of a 110kV transformer substation is not less than 0.5h, 86Ah battery cores are selected, the energy storage battery 7 is composed of 5 battery boxes 71-75, the battery cores in the battery boxes are connected in a 1P14S mode, the battery boxes are connected in series to form a 224V/19.26kW battery system, the number of charging and discharging cycles of 0.2C is not less than 3000, the battery boxes are in an aerial plug-in mode, B & lt- & gt of the battery box 1 is connected to B & lt + & gt of the battery box 2, the battery boxes are finally connected in series to B & lt + & gt and B & lt- & gt terminals of the main control box, P & lt + & gt and P & lt- & gt connecting cables of the main control box are respectively connected to positive and negative and positive and negative poles of a aviation plug, the cathode is black, the cathode of the aviation plug corresponds to colors of a positive pole of a positive and a negative pole of an aviation plug of an aviation switch.
As shown in FIG. 2, the emergency power supply vehicle 1 of the device is composed of a battery vehicle 9 and a charging vehicle 10, wherein battery boxes 71-75 are connected in series and then arranged on a movable vehicle body of the battery vehicle 9. the energy storage battery 7 is provided with two output loops on the battery vehicle 9, direct current output loops with anti-reflux diodes, direct current output loops, and a battery management unit, a charging device, a direct current conversion device, a direct current monitoring device and a communication management unit are arranged on the movable vehicle body of the charging vehicle.
In this embodiment, the battery management unit (BMS) mainly includes a management module (GBMU) of the battery system, a management module (BMU) of the battery cluster, and a collection module (BSU), and CAN communication is adopted between the collection module and the management module of the battery cluster, between the management module of the battery cluster and the management module of the battery system, and RS485 communication is adopted between the management module of the battery system and the dc monitoring apparatus.
When the storage battery of the station DC power supply system needs to be subjected to off-line capacity checking, the DC output end of the emergency power supply vehicle is connected to the DC bus of the original DC system in parallel and used as a standby battery of the original DC system. When the storage battery is in off-line capacity checking, if the station uses a commercial power fault of a direct current system or the direct current charger stops running, the emergency power supply device monitoring unit monitors that the bus voltage is lost, starts to supply power to the load through the storage battery pack according to the detected load current demand, and monitors the on-line voltage current and the like in real time. The working mode realizes seamless switching power supply when the original direct current system bus is in power failure, and ensures the reliability of direct current load power supply.
When the station is upgraded and modified by using the direct current power supply system, the emergency power supply vehicle and the emergency feeder power supply vehicle are connected to for use, the original direct current feeder is partially switched to the emergency feeder power supply vehicle, carries out floating charging on the energy storage battery, carries out parallel connection with the original direct current feeder through the emergency feeder power supply vehicle to supply power to all loads of the original direct current system, the device is used as a standby direct current power supply system, the new generation mobile emergency power supply system is used as the standby direct current power supply system, the problem that the transformer substation upgrades the direct current system without power outage is solved, the system is configured with 220VDC and 48VDC direct current power supply outputs according to the actual requirements of most transformer substations, and the universality of the system is expanded.
When the storage battery of the station DC power supply system needs to be subjected to off-line capacity checking and the energy storage battery of the device is used as a standby battery of the original DC system, the energy storage battery is connected to the DC output loop with the anti-reflux diode for output, so that the original DC system is prevented from charging the energy storage battery, and mutual influence between two sets of DC systems with different battery types is avoided. When the station DC power supply system is upgraded and reformed and the device is used as a standby DC power supply system, the energy storage battery is connected to the output of the direct DC output loop.
Above is the utility model discloses a preferred embodiment, all rely on the utility model discloses the change that technical scheme made, produced functional action does not surpass the utility model discloses during technical scheme's scope, all belong to the utility model discloses a protection scope.
Claims (6)
- The mobile emergency power supply device is characterized by comprising an emergency power supply vehicle and an emergency feeder power supply vehicle, wherein a battery system, a charging device, a direct current conversion device, a direct current monitoring device and a communication management unit are arranged on a mobile vehicle body of the emergency power supply vehicle, the battery system comprises an energy storage battery and a battery management unit, the input end of the charging device is connected with 220V alternating current, the output end of the charging device is divided into three paths, a path is electrically connected with the energy storage battery to charge the energy storage battery, a second path is electrically connected with the direct current conversion device to carry out direct current voltage conversion, a third path is connected with an aviation plug to output the energy storage battery, the output end of the direct current conversion device is divided into two paths, a path is electrically connected with the battery management unit to provide working power for the energy storage battery, another path is connected with the aviation plug to output the energy storage battery, the communication management unit is simultaneously in communication connection with the direct current monitoring device and the battery management unit to sample battery information in real time and transmit the direct current monitoring device to the battery management unit, commands of the monitoring device are transmitted to the battery management unit, the direct current monitoring device is connected with the charging device, and a plurality of the emergency feeder line of the mobile.
- 2. The mobile emergency power supply unit of claim 1, wherein the energy storage battery is a lithium iron phosphate battery, the battery system is a lithium iron phosphate battery system, and the nominal voltage of the lithium iron phosphate battery system is 220 VDC.
- 3. The kinds of portable emergency power supply unit of claim 2, wherein the voltage at the output end of said DC conversion unit is 48 VDC.
- 4. The mobile emergency power supply of claim 3, wherein the feeder switches on the emergency feeder cart include a 220VDC feeder switch and a 48VDC feeder switch, and wherein the emergency feeder cart has an aerial connector for mating with a corresponding aerial connector on the emergency cart.
- 5. The mobile emergency power supply device of claim 1, wherein the emergency power supply vehicle is composed of a battery vehicle and a charging vehicle, the energy storage battery is composed of a plurality of battery boxes connected in series, the plurality of battery boxes are arranged on the mobile vehicle body of the battery vehicle after being connected in series, the energy storage battery is provided with two output loops on the battery vehicle, direct current output loops with anti-reflux diodes are arranged, the other direct current output loops are arranged, and the battery management unit, the charging device, the direct current conversion device, the direct current monitoring device and the communication management unit are arranged on the mobile vehicle body of the charging vehicle.
- 6. The kinds of mobile emergency power supply units of claim 1, wherein the battery management unit (BMS) is mainly composed of a management module of the battery system, a management module of the battery cluster and an acquisition module, CAN communication is adopted between the acquisition module and the management module of the battery cluster, between the management module of the battery cluster and the management module of the battery system, and RS485 communication is adopted between the management module of the battery system and the DC monitoring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920732601.XU CN210007468U (en) | 2019-05-21 | 2019-05-21 | kinds of mobile emergency power supply device |
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| CN201920732601.XU CN210007468U (en) | 2019-05-21 | 2019-05-21 | kinds of mobile emergency power supply device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110011408A (en) * | 2019-05-21 | 2019-07-12 | 国网福建省电力有限公司宁德供电公司 | A kind of moving emergency power-supply system and its working method |
| CN111355281A (en) * | 2020-03-26 | 2020-06-30 | 国网江西省电力有限公司电力科学研究院 | Vehicle-mounted movable energy storage system |
| CN114424419A (en) * | 2021-03-17 | 2022-04-29 | 华为数字能源技术有限公司 | Energy storage system and power supply method of battery management system |
-
2019
- 2019-05-21 CN CN201920732601.XU patent/CN210007468U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110011408A (en) * | 2019-05-21 | 2019-07-12 | 国网福建省电力有限公司宁德供电公司 | A kind of moving emergency power-supply system and its working method |
| CN110011408B (en) * | 2019-05-21 | 2024-03-08 | 国网福建省电力有限公司宁德供电公司 | Mobile emergency power supply system and working method thereof |
| CN111355281A (en) * | 2020-03-26 | 2020-06-30 | 国网江西省电力有限公司电力科学研究院 | Vehicle-mounted movable energy storage system |
| CN114424419A (en) * | 2021-03-17 | 2022-04-29 | 华为数字能源技术有限公司 | Energy storage system and power supply method of battery management system |
| WO2022193165A1 (en) * | 2021-03-17 | 2022-09-22 | 华为数字能源技术有限公司 | Energy storage system, and power supply method for battery management system |
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