CN110994754A - Portable direct current standby power supply - Google Patents
Portable direct current standby power supply Download PDFInfo
- Publication number
- CN110994754A CN110994754A CN201911257522.9A CN201911257522A CN110994754A CN 110994754 A CN110994754 A CN 110994754A CN 201911257522 A CN201911257522 A CN 201911257522A CN 110994754 A CN110994754 A CN 110994754A
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- Prior art keywords
- power supply
- module
- battery pack
- interface
- shell
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 239000002253 acid Substances 0.000 claims description 3
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical group [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a portable direct-current standby power supply which comprises a shell, a charging module, a power supply module and a monitoring module, wherein the charging module is arranged on the shell; the power supply module comprises a storage battery pack and a boosting module, and the charging module is connected with the power supply module and is used for converting alternating current of the transformer substation into direct current to supply power to the storage battery pack of the power supply module; the power supply module is used for boosting the direct current output by the storage battery pack to 220V direct current and providing the direct current for a load; the monitoring module is connected with the power supply module and used for monitoring and displaying the input voltage and the output voltage of the boosting module. The invention can save the time for replacing the storage battery pack and improve the working efficiency.
Description
Technical Field
The invention relates to a portable direct-current standby power supply, in particular to a portable direct-current standby power supply for a transformer substation.
Background
In order to ensure the safety and reliability of the power system, working power supplies of relay protection and automatic control devices, circuit breaker control, energy storage and the like in a power plant and a transformer substation are provided by a direct current system. The reliability of the storage battery pack as an important power input device of the direct current system directly affects the reliability of power utilization of the station, so that the enhancement of maintenance and management work of the storage battery pack is an inevitable requirement for improving the reliability of power supply. According to the regulations relating to batteries for stations, the entire battery pack is replaced if the battery capacity is insufficient for 80% of the rated capacity. During the replacement of a new storage battery pack, the old storage battery pack can be out of operation, so that the direct current system runs without the storage battery pack, which is contrary to the requirement of 'the station uses the direct current power supply system to run, and the storage battery pack is forbidden to be separated from a direct current bus'.
In order to avoid the above risks, the conventional practice in the industry is as follows: firstly, a group of spare storage batteries with the same capacity and voltage (generally 18 sections, 35kg for each time) is connected into a direct current system; then, the original running storage battery pack is quitted from running, and a new storage battery pack is replaced; and finally, removing the spare storage battery pack, and removing the spare storage battery pack and the old storage battery pack.
However, such conventional storage batteries consume a lot of manpower and are long in time for replacing the storage batteries, and the longer the replacement work is, the longer the fault recovery time of the dc system is, thereby reducing the reliability of the dc system and posing a threat to the safety of the substation and even the grid. Therefore, it is necessary to improve the procedure of replacing the storage battery pack and the related equipment, so as to shorten the replacement time of the storage battery pack and reduce the risk of power loss of the whole station.
Disclosure of Invention
In view of the above technical problems, the present invention provides a portable dc backup power supply, which is used to replace a battery pack used in a transformer substation during a battery replacement period in a conventional method, and provide a corresponding dc voltage, so as to reduce the replacement time of the battery pack of the transformer substation.
The technical scheme adopted by the invention is as follows:
the embodiment of the invention provides a portable direct current standby power supply, which comprises: the device comprises a shell, a charging module, a power supply module and a monitoring module; the charging module comprises an alternating current interface, an AC/DC power module converter, an alternating current control switch and a direct current control switch, wherein the alternating current interface is arranged on the side part of the shell and is used for being connected with alternating current of a transformer substation; the AC/DC power supply module converter is arranged in the shell and is respectively connected with the AC access interface and the power supply module; the alternating current control switch is arranged on the front side of the shell and is connected with a connecting line between the AC/DC power supply module converter and the alternating current access interface; the direct current control switch is arranged on the front side of the shell and is connected with a connecting line between the AC/DC power supply module converter and the power supply module; the power supply module comprises a storage battery pack, a boosting module, a battery pack interface, a battery pack control switch and an output interface, wherein the battery pack interface is arranged on the side part of the shell and is used for being connected with the storage battery pack; the storage battery pack comprises 4 storage batteries; the boosting module is arranged in the shell and is respectively connected with the battery pack interface and the output interface; the battery pack control switch is respectively connected with a connecting line between the battery pack interface and the boosting module and a connecting line between the boosting module and the output interface; the output interface is arranged on the shell and is used for being connected with a load; the monitoring module comprises a voltage monitor and a display screen, wherein the voltage monitor is respectively connected with the input end and the output end of the boosting module and used for monitoring the input voltage and the output voltage of the boosting module and displaying through the display screen.
Optionally, the bottom of the housing is provided with a pulley, and the side of the housing is further provided with a handle.
Optionally, the battery is a lithium iron phosphate battery or a lead-acid battery.
Optionally, the display screen includes a first display screen and a second display screen, which are respectively used for displaying the input voltage and the output voltage.
Optionally, an anti-reverse diode is further disposed between the boost module and the output interface.
The portable direct-current standby power supply provided by the embodiment of the invention comprises a shell, a charging module, a power supply module and a monitoring module, wherein the charging module can convert alternating current of a transformer substation into 220V direct current and charge a storage battery pack consisting of a small number of storage batteries (about 4 sections), and the boosting module can boost the voltage of the storage battery pack to be 220V direct current, so that the weight of the storage battery pack can be reduced, time is saved, repeated labor is avoided, and on the other hand, a standby power supply can be connected into a direct-current system to run in the whole process of replacing the storage batteries, so that the regulation requirement can be met, the risk of sudden power failure is avoided, and the reliability is high. In addition, the monitoring module can monitor and display the input voltage and the output voltage of the boosting module, so that the storage battery pack and the voltage finally provided for the transformer substation can be intuitively known. And, be provided with pulley and handle portion on the casing for the casing is carried easily, can alleviate operating personnel's work burden greatly.
Drawings
Fig. 1 is a schematic structural diagram of a portable dc backup power supply according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the portable dc backup power supply provided by the embodiment of the present invention includes: casing 1, the module of charging, power module and monitoring module.
In the embodiment of the invention, the charging module comprises an alternating current interface 3, an AC/DC power module converter, an alternating current control switch 9 and a direct current control switch 10, the alternating current interface 3 is arranged at the side part of the housing and is used for being connected with alternating current of a transformer substation, and the alternating current interface 3 comprises an alternating current live wire interface and a zero line interface. The AC/DC power supply module converter is arranged in the shell and is respectively connected with the AC access interface 3 and the power supply module, and the AC/DC power supply module converter can adopt the existing AC/DC power supply module converter as long as the AC can be stably converted into the DC of 220V. The alternating current control switch 9 is arranged on the front side of the shell 1 and is connected with a connecting line between the AC/DC power supply module converter and the alternating current access interface 3, and whether the AC/DC power supply module converter is communicated with an alternating current power supply of a transformer substation can be controlled by operating the alternating current control switch 9. The DC control switch 10 is disposed at the front side of the housing 1, and is connected to a connection line between the AC/DC power module converter and the power supply module, and the DC output of the charging module can be controlled by operating the DC control switch 10.
In the embodiment of the present invention, the power supply module may include a battery pack 11, a boost module, a battery pack interface 4, a battery pack control switch 5, and an output interface, where the battery pack interface 4 is disposed at a side portion of the housing and is configured to be connected to the battery pack 11, and the battery pack interfaces 4 may be disposed in two groups, including positive and negative interfaces. The battery pack 11 may include 4 storage batteries, which are lithium iron phosphate batteries or lead-acid batteries. The boost module is arranged in the shell 1 and is respectively connected with the battery pack interface 4 and the output interface, the boost module can be an existing DC-DC voltage regulation module, and the boost module only needs to stably boost the direct-current voltage input by the storage battery pack 11 to the direct-current voltage of 220V. The battery pack control switch 5 is respectively connected with a connecting line between the battery pack interface 4 and the boosting module and a connecting line between the boosting module and the output interface, and whether the input voltage and the output voltage of the boosting module are conducted or not can be controlled by operating the battery pack control switch 5. The output interface is arranged on the shell and used for being connected with a load. In addition, an anti-reverse diode is further arranged between the boosting module and the output interface and used for protecting the boosting module.
In the embodiment of the present invention, the monitoring module may include a voltage monitor and a display screen, where the voltage monitor is respectively connected to the input end and the output end of the boosting module, and is configured to monitor the input voltage and the output voltage of the boosting module and display the input voltage and the output voltage through the display screen. The voltage monitor may be an existing voltage monitor, and may include a magnetic stripe type sensor, an MPU processing unit, a successive approximation type a/D converter, and the like, for example. The display screens may comprise a first display screen 7 and a second display screen 8 for displaying the input voltage and the output voltage, respectively, i.e. the voltage of the battery pack and the dc voltage eventually supplied to the substation.
In the embodiment of the invention, the bottom of the shell 1 is provided with a pulley, and the back side of the shell is also provided with a handle part 2. The pulley can include directive wheel and universal wheel, can diversely move the casing and can stop in required position, like this, through the pulley removal casing, labour saving and time saving. When the shell needs to be carried, the shell can be carried by the handles on two sides of the shell, and the shell is convenient to carry. Further, the case may be made of a painted cold-rolled steel sheet.
To sum up, according to the portable dc backup power supply provided by the embodiment of the present invention, the charging module can convert ac power of a transformer substation into 220V dc power to charge the storage battery pack formed by a small number of storage batteries (about 4 nodes), and the boosting module can boost voltage of the storage battery pack to 220V dc power, so that on one hand, weight of the storage battery pack can be reduced, time is saved, and repeated labor is avoided, on the other hand, the dc system can have a backup power supply to access the dc system to operate in the whole process of replacing the storage batteries, and thus, regulation requirements can be met, risk of sudden power failure is avoided, and reliability is high. In addition, the monitoring module can monitor and display the input voltage and the output voltage of the boosting module, so that the storage battery pack and the voltage finally provided for the transformer substation can be intuitively known. And, be provided with pulley and handle portion on the casing for the casing is carried easily, can alleviate operating personnel's work burden greatly.
The above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A portable dc backup power supply, comprising: the device comprises a shell, a charging module, a power supply module and a monitoring module;
the charging module comprises an alternating current interface, an AC/DC power module converter, an alternating current control switch and a direct current control switch, wherein the alternating current interface is arranged on the side part of the shell and is used for being connected with alternating current of a transformer substation; the AC/DC power supply module converter is arranged in the shell and is respectively connected with the AC access interface and the power supply module; the alternating current control switch is arranged on the front side of the shell and is connected with a connecting line between the AC/DC power supply module converter and the alternating current access interface; the direct current control switch is arranged on the front side of the shell and is connected with a connecting line between the AC/DC power supply module converter and the power supply module;
the power supply module comprises a storage battery pack, a boosting module, a battery pack interface, a battery pack control switch and an output interface, wherein the battery pack interface is arranged on the side part of the shell and is used for being connected with the storage battery pack; the storage battery pack comprises 4 storage batteries; the boosting module is arranged in the shell and is respectively connected with the battery pack interface and the output interface; the battery pack control switch is respectively connected with a connecting line between the battery pack interface and the boosting module and a connecting line between the boosting module and the output interface; the output interface is arranged on the shell and is used for being connected with a load;
the monitoring module comprises a voltage monitor and a display screen, wherein the voltage monitor is respectively connected with the input end and the output end of the boosting module and used for monitoring the input voltage and the output voltage of the boosting module and displaying through the display screen.
2. The portable direct current backup power supply according to claim 1, wherein a pulley is provided at a bottom of the housing, and a handle is further provided at a side of the housing.
3. The portable direct current backup power supply according to claim 1, wherein said storage battery is a lithium iron phosphate battery or a lead acid battery.
4. The portable dc backup power supply according to claim 1, wherein said display screen comprises a first display screen and a second display screen for displaying said input voltage and said output voltage, respectively.
5. The portable DC backup power supply according to claim 1,
and an anti-reverse diode is also arranged between the boosting module and the output interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911257522.9A CN110994754A (en) | 2019-12-10 | 2019-12-10 | Portable direct current standby power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911257522.9A CN110994754A (en) | 2019-12-10 | 2019-12-10 | Portable direct current standby power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110994754A true CN110994754A (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911257522.9A Pending CN110994754A (en) | 2019-12-10 | 2019-12-10 | Portable direct current standby power supply |
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| Country | Link |
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| CN (1) | CN110994754A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201207567Y (en) * | 2008-01-18 | 2009-03-11 | 肖艳义 | Portable DC operation power supply |
| CN102361333A (en) * | 2011-10-13 | 2012-02-22 | 江阴市威豪电器有限公司 | Multipurpose standby power supply |
| CN202782741U (en) * | 2012-09-21 | 2013-03-13 | 中国人民解放军第三军医大学第三附属医院 | Intelligent power box for supplying power to vehicle-mounted precision equipment |
| CN203481883U (en) * | 2013-09-26 | 2014-03-12 | 云南电网公司临沧供电局 | Transformer station DC power system |
| CN203932720U (en) * | 2014-05-19 | 2014-11-05 | 王高石 | A kind of portable system power supply box |
| CN205489606U (en) * | 2016-01-14 | 2016-08-17 | 深圳市泰昂能源科技股份有限公司 | Spare circuit of battery and direct current system |
| CN206517121U (en) * | 2017-03-16 | 2017-09-22 | 福建省电力勘测设计院 | Distributed DC power module for transformer station's prefabricated cabin |
| CN207426791U (en) * | 2017-09-20 | 2018-05-29 | 深圳市泰昂能源科技股份有限公司 | Continuous-current plant and power-supply system |
| CN108110863A (en) * | 2018-01-31 | 2018-06-01 | 中邮建技术有限公司 | Communication engineering special portable formula portable power source device |
| CN109167430A (en) * | 2018-09-18 | 2019-01-08 | 深圳市润海通科技有限公司 | A kind of distributed DC power |
-
2019
- 2019-12-10 CN CN201911257522.9A patent/CN110994754A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201207567Y (en) * | 2008-01-18 | 2009-03-11 | 肖艳义 | Portable DC operation power supply |
| CN102361333A (en) * | 2011-10-13 | 2012-02-22 | 江阴市威豪电器有限公司 | Multipurpose standby power supply |
| CN202782741U (en) * | 2012-09-21 | 2013-03-13 | 中国人民解放军第三军医大学第三附属医院 | Intelligent power box for supplying power to vehicle-mounted precision equipment |
| CN203481883U (en) * | 2013-09-26 | 2014-03-12 | 云南电网公司临沧供电局 | Transformer station DC power system |
| CN203932720U (en) * | 2014-05-19 | 2014-11-05 | 王高石 | A kind of portable system power supply box |
| CN205489606U (en) * | 2016-01-14 | 2016-08-17 | 深圳市泰昂能源科技股份有限公司 | Spare circuit of battery and direct current system |
| CN206517121U (en) * | 2017-03-16 | 2017-09-22 | 福建省电力勘测设计院 | Distributed DC power module for transformer station's prefabricated cabin |
| CN207426791U (en) * | 2017-09-20 | 2018-05-29 | 深圳市泰昂能源科技股份有限公司 | Continuous-current plant and power-supply system |
| CN108110863A (en) * | 2018-01-31 | 2018-06-01 | 中邮建技术有限公司 | Communication engineering special portable formula portable power source device |
| CN109167430A (en) * | 2018-09-18 | 2019-01-08 | 深圳市润海通科技有限公司 | A kind of distributed DC power |
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Application publication date: 20200410 |