CN201750146U - DC power supply system - Google Patents
DC power supply system Download PDFInfo
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- CN201750146U CN201750146U CN2010202734011U CN201020273401U CN201750146U CN 201750146 U CN201750146 U CN 201750146U CN 2010202734011 U CN2010202734011 U CN 2010202734011U CN 201020273401 U CN201020273401 U CN 201020273401U CN 201750146 U CN201750146 U CN 201750146U
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- power
- module
- supply system
- monitoring
- charging
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The utility model provides a DC power supply system, which comprises a storage battery for storing converted DC power, a plurality of charging modules for converting AC power into DC power, an AC power distribution module for distributing AC power to the charging module; a system monitoring module for monitoring the system, and a feed module; wherein, the AC power distribution module receives multi-way AC input, and is electrically connected with each charging module; an input end of the storage battery is connected with each charging module, and an output end is connected with a feed unit; the system monitoring module is connected with each running device of the system; the feed module comprises a plurality of output interfaces. The DC power supply system adopts the monitoring module to monitor each working device of the system in real time, promptly finds fault and reports to the computer, and conveniently handles the problem without delay so that the system runs with safety.
Description
Technical field
The utility model relates to direct current supply control field, is specifically related to a kind of DC power-supply system of dependable performance.
Background technology
The non-maintaining DC power supply panel of intelligence is called for short direct current cabinet and is used for supplying this DC power supply.What the electric power operation power supply in power plant and the transformer station adopted now all is DC power supply, and it provides power supply for controlling load and living load and direct current emergency lighting load etc., is the basis of contemporary electric power system control, protection.Direct current cabinet is made up of mating electric unit, charging module unit, DC feedback unit, power monitoring unit, monitoring module unit and insulating monitoring unit.Be mainly used in the middle-size and small-size power plant of electric power system, hydroelectric station, all kinds of transformer station; with other user'ss (as petrochemical industry, mine, railway etc.) who uses DC equipment, be applicable to the occasions such as instrument, instrument, relaying protection and fault illumination in switch divide-shut brake and the secondary circuit.
The DC power-supply system of prior art (direct current cabinet or DC power cabinet) because the element of the work of participation is too much, when breaking down, can't be found out location of fault rapidly, therefore is not easy to fault and gets rid of, and performance is also unstable.
The utility model content
At above-mentioned defective, the purpose of this utility model provides a kind of DC power-supply system, with the technical problem of the DC power-supply system unstable properties that solves prior art.
For achieving the above object, the utility model has adopted following technical scheme:
A kind of DC power-supply system comprises: be used to store conversion back DC power supply batteries, be used for AC power convert galvanic a plurality of charging module to, be used for AC power distribute to described charging module the AC distribution module, be used for system monitoring module and power feeding module that system is monitored;
Wherein, described AC distribution module is accepted multichannel and is exchanged input, and electrically connects with each charging module; Described batteries input connects each charging module, and output connects feed element; Each operational outfit of described system monitoring module connected system; Described power feeding module comprises a plurality of output interfaces.
According to the described DC power-supply system of the utility model preferred embodiment, described system monitoring module further comprises, connect the interchange monitoring unit of AC distribution module, the module monitors unit that connects charging module, the battery cell monitoring unit that connects batteries and direct-current supervision unit, the switching value monitoring unit of connection feed element and the insulation monitoring unit that insulator arrangement is monitored
According to the described DC power-supply system of the utility model preferred embodiment, described power feeding module further comprises combined floodgate feeder line and control feeder line.
According to the described DC power-supply system of the utility model preferred embodiment, also comprise step-down silicon chain element, it is connected between described batteries and the described control feeder line.
According to the described DC power-supply system of the utility model preferred embodiment, described system monitoring module also comprises communication interface, is connected with computer by this communication interface.
According to the described DC power-supply system of the utility model preferred embodiment, described communication interface be RS232 interface or RS485 interface one of them.
Owing to adopted above technical characterictic, made the utility model have following advantage and good effect than prior art:
1, DC power-supply system provided by the utility model adopts the module of a plurality of interchanges conversion simultaneously, when one of them or several breaking down, backup is arranged, and can not influence its work;
2, DC power-supply system provided by the utility model adopts monitoring module in real time each equipment of system to be monitored, and in time finds fault and report computer, is convenient to timely handling problem, makes that system's operation is more secure;
3, DC power-supply system provided by the utility model is provided with step-down silicon chain element, makes that the voltage of batteries output is stable, can not cause damage to power consumption equipment, and fail safe is secure.
Description of drawings
Fig. 1 is the structured flowchart of a kind of DC power-supply system of the utility model;
Fig. 2 is the block diagram of system monitoring module of the present utility model.
Embodiment
For ease of understanding,, the utility model done being described in further detail below in conjunction with accompanying drawing.
Please refer to Fig. 1, it is the theory diagram of DC power-supply system provided by the utility model, a kind of as seen from the figure DC power-supply system comprises: be used to store conversion back DC power supply batteries 4, be used for AC power convert galvanic a plurality of charging module 2 to, be used for AC power distribute to described charging module AC distribution module 1, be used for system monitoring module 3 and power feeding module that system is monitored.
AC distribution module 1 is used for each charging module 2 is introduced and be assigned to AC power, and it possesses the function of two-way AC power input.
Batteries 4 can be finished the battery charge program automatically as the pith in the DC power-supply system, can adopt ickel accumulator or valve controlled sealed lead-acid accumulator etc.
AC distribution module 1 is accepted multichannel and is exchanged input, and electrically connects with each charging module 2; Described batteries 4 inputs connect each charging module 2, and output connects feed element; Each operational outfit of described system monitoring module 3 connected systems; Described power feeding module comprises a plurality of output interfaces, and feeder line 61 and control feeder line 62 for example close a floodgate.
Please refer to Fig. 2, it is the block diagram of the system monitoring module 3 in the utility model, as seen, it further comprises, connects the interchange monitoring unit 31 of AC distribution module 1, the module monitors unit 32 that connects charging module 2, the battery cell monitoring unit 33 that connects batteries 4 and direct-current supervision unit 34, the switching value monitoring unit 35 of connection feed element and the insulation monitoring unit 36 that insulator arrangement is monitored.
Wherein, exchange the state that monitoring unit 31 is measured two-way three AC-input voltage, electric current and A.C. contactors, and finish the automatic switchover that two-way exchanges input automatically, realize that two-way exchanges standby each other charging according to the AC-input voltage of measuring.
36 of insulation monitoring units are realized the monitoring of bus volume branch road insulation status, produce alarm signal and report paper system monitoring module 3, have the output of alarm dry contact simultaneously.
The output parameter of DC feedback and the operating state of electricity supply element are measured in 34 of direct-current supervision unit, the output voltage and the electric current of monitoring combined floodgate feeder line 61.The analog quantitys such as output voltage, electric current, battery charging and discharging electric current and ambient temperature of control feeder line 62; Send the information that detects to system monitoring module 3 by communication interface, as the foundation of handling failure.
33 of battery cell monitoring unit adopt Hall element to realize the electrical isolation of detection signal and high-voltage dc signal, if system exists two Battery packs then to require two Battery packs to adopt the Hall element of same range.
Simultaneity factor monitoring module 3 also comprises communication interface, and for example RS232 standard interface or RS485 standard interface are connected with computer by this communication interface, makes things convenient for each monitoring unit to give computer for its analysis and handling failure the message transmission of its detection.
For guaranteeing that the direct current supply happiness is used in when batteries 4 charged; the output voltage of charging module 2 can be higher than the load voltage value of control loop; DC power-supply system of the present utility model; also at combined floodgate feeder line 61 and the control step-down silicon chain element 5 of having connected between the feeder line 62, the effect by the silicon chain cooperates relay and open-circuit-protection unit to guarantee that its voltage is in the normal range (NR) of rated voltage.
In sum, make the utility model have following advantage and good effect than prior art:
1, DC power-supply system provided by the utility model adopts the module of a plurality of interchanges conversion simultaneously, when one of them or several breaking down, backup is arranged, and can not influence its work;
2, DC power-supply system provided by the utility model adopts monitoring module in real time each equipment of system to be monitored, and in time finds fault and report computer, is convenient to timely handling problem, makes that system's operation is more secure;
3, DC power-supply system provided by the utility model is provided with step-down silicon chain element, makes that the voltage of batteries output is stable, can not cause damage to power consumption equipment, and fail safe is secure.
More than disclosed only be preferred embodiment of the present utility model; but be not to be used for limiting itself; anyly have the knack of those skilled in the art, under the situation of the utility model spiritual connotation, the equalization of being done changes and changes and all should drop in the protection range of the present utility model.
Claims (6)
1. DC power-supply system, it is characterized in that, comprising: be used to store conversion back DC power supply batteries, be used for AC power convert galvanic a plurality of charging module to, be used for AC power distribute to described charging module the AC distribution module, be used for system monitoring module and power feeding module that system is monitored;
Wherein, described AC distribution module is accepted multichannel and is exchanged input, and electrically connects with each charging module; Described batteries input connects each charging module, and output connects feed element; Each operational outfit of described system monitoring module connected system; Described power feeding module comprises a plurality of output interfaces.
2. DC power-supply system as claimed in claim 1, it is characterized in that, described system monitoring module further comprises, connect the interchange monitoring unit of AC distribution module, the module monitors unit that connects charging module, the battery cell monitoring unit that connects batteries and direct-current supervision unit, the switching value monitoring unit of connection feed element and the insulation monitoring unit that insulator arrangement is monitored
3. DC power-supply system as claimed in claim 1 is characterized in that, described power feeding module further comprises combined floodgate feeder line and control feeder line.
4. DC power-supply system as claimed in claim 3 is characterized in that, also comprises step-down silicon chain element, and it is connected between described batteries and the described control feeder line.
5. DC power-supply system as claimed in claim 1 is characterized in that, described system monitoring module also comprises communication interface, is connected with computer by this communication interface.
6. DC power-supply system as claimed in claim 5 is characterized in that, described communication interface be RS232 interface or RS485 interface one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202734011U CN201750146U (en) | 2010-07-27 | 2010-07-27 | DC power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202734011U CN201750146U (en) | 2010-07-27 | 2010-07-27 | DC power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201750146U true CN201750146U (en) | 2011-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202734011U Expired - Fee Related CN201750146U (en) | 2010-07-27 | 2010-07-27 | DC power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201750146U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102270812A (en) * | 2011-07-27 | 2011-12-07 | 上海凯华电源成套设备有限公司 | Integrated panel of alternating-current distribution panel, direct-current power supply panel, emergency lighting panel and common monitoring device |
| CN105826831A (en) * | 2016-05-25 | 2016-08-03 | 国网宁夏电力公司吴忠供电公司 | Direct-current power cabinet |
| CN106899081A (en) * | 2017-03-27 | 2017-06-27 | 深圳市前海中电新能源科技有限公司 | A kind of DC charging motor monitoring system |
| CN110277779A (en) * | 2019-05-13 | 2019-09-24 | 国家电网有限公司 | It is a kind of for temporarily substituting the power supply unit of direct current cabinet |
| CN111443789A (en) * | 2020-04-07 | 2020-07-24 | 国家电网有限公司 | Computer and communication equipment direct current power supply method |
-
2010
- 2010-07-27 CN CN2010202734011U patent/CN201750146U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102270812A (en) * | 2011-07-27 | 2011-12-07 | 上海凯华电源成套设备有限公司 | Integrated panel of alternating-current distribution panel, direct-current power supply panel, emergency lighting panel and common monitoring device |
| CN105826831A (en) * | 2016-05-25 | 2016-08-03 | 国网宁夏电力公司吴忠供电公司 | Direct-current power cabinet |
| CN106899081A (en) * | 2017-03-27 | 2017-06-27 | 深圳市前海中电新能源科技有限公司 | A kind of DC charging motor monitoring system |
| CN106899081B (en) * | 2017-03-27 | 2024-01-26 | 深圳市前海中电新能源科技有限公司 | Direct current charger monitoring system |
| CN110277779A (en) * | 2019-05-13 | 2019-09-24 | 国家电网有限公司 | It is a kind of for temporarily substituting the power supply unit of direct current cabinet |
| CN110277779B (en) * | 2019-05-13 | 2020-09-11 | 国家电网有限公司 | Power supply device for temporarily replacing direct current screen |
| CN111443789A (en) * | 2020-04-07 | 2020-07-24 | 国家电网有限公司 | Computer and communication equipment direct current power supply method |
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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 |
Granted publication date: 20110216 Termination date: 20150727 |
|
| EXPY | Termination of patent right or utility model |