CN102891529A - Automatic switching device of direct current dual power - Google Patents
Automatic switching device of direct current dual power Download PDFInfo
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- CN102891529A CN102891529A CN201210338142XA CN201210338142A CN102891529A CN 102891529 A CN102891529 A CN 102891529A CN 201210338142X A CN201210338142X A CN 201210338142XA CN 201210338142 A CN201210338142 A CN 201210338142A CN 102891529 A CN102891529 A CN 102891529A
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- microprocessor
- automatic switching
- dual power
- switching device
- current dual
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Abstract
The invention provides an automatic switching device of a direct current dual power. A work mode change-over switch is connected with a microprocessor, a charging voltage collecting module is connected with the microprocessor; a communication port is connected with the microprocessor, an input connector is in one-way connection with the microprocessor, the microprocessor is in one-way connection with a state indication and output joint; the microprocessor is in one-way connection with a program control breaker through a driving module, and a state detector is respectively in one-way connection with the microprocessor and the program control breaker. The device provided by the invention can carry out the switch of the direct current dual power; the automatic switching device has the characteristics of good switching effect and safety. Furthermore, the automatic switching device is applicable to an electric device.
Description
Technical field
What the present invention proposed is a kind of direct-current dual power automatic switching control equipment of power supply appliance field.
Background technology
Direct current system plays an important role in electric power system as the power source of transformer station.In order to improve its safety and reliability, original one fills one holds pattern and progressively is improved to two and fills one and hold pattern, and wherein, one group of charger is normal power source, and another group is stand-by power supply.At present, break down when maybe needing to overhaul at " normal power source ", what adopt is manually to cut off first normal power source, then manually drop into the mode of operation of stand-by power supply, hysteresis on the life period and blind area, normal power source output fault, but fail to find and the defectives such as misoperation, for unattended operation transformer station, might be owing to can't when breaking down, very first time processing causing major accident.
The peculiar problem of unattended operation transformer station: because the charger faults itself, even cause detecting self output fault or not on when sending the reasons such as fault message, signal transmission, telecommunication to cause normal power source to export fault, remote supervisory and control(ling) equipment also can't be learnt warning message; Even remote supervisory and control(ling) equipment detects alarm condition, but because not discovery and processing of human factor; Can't the very first time rush towards in-situ processing, processing fault from breaking down to needs the long period, especially breaks down night, has buried major safety risks.There is the monitoring blind area: when causing normal power source output fault owing to a variety of causes, can not in time be found and process.
Fault handling time lags behind: obtaining processing from the fault that breaks down often needs the long period; During charger output fault, in the serious deteriorated situation of accumulator property, the time that can keep may be very short, and the time that manual switchover needs is relatively long.The wasting of resources, inefficiency: waste of manpower and time, and operating efficiency is very low.The potential safety hazard that human factor causes: equipment has warning, does not in time find and processes; Because staff's carelessness may cause leaking throwing, the wrong problem of throwing, also throwing.
Summary of the invention
In order to realize that direct-current dual power automaticallyes switch, and the present invention proposes a kind of direct-current dual power automatic switching control equipment.This device is connected with functional part by microprocessor, solves the technical problem that direct-current dual power automaticallyes switch.
The scheme that technical solution problem of the present invention adopts is: the mode of operation diverter switch is connected with microprocessor, charging voltage acquisition module and microprocessor interconnect, PORT COM and microprocessor interconnect, the input contact is connected with microprocessor is unidirectional, the indication of microprocessor and state is connected with output contact and is connected, microprocessor is connected with program control circuit breaker is unidirectional by driver module, state detector respectively with microprocessor be connected that circuit breaker is unidirectional to be connected.
Good effect, apparatus of the present invention can carry out direct-current dual power and switch, and have effective, the safe characteristics of switching.Suitable direct-current dual power automatic switching control equipment as electrical circuitry equipment is used.
Description of drawings
Fig. 1 is switching device shifter pie graph of the present invention
Embodiment
The mode of operation diverter switch is connected with microprocessor, charging voltage acquisition module and microprocessor interconnect, PORT COM and microprocessor interconnect, the input contact is connected with microprocessor is unidirectional, the indication of microprocessor and state is connected with output contact and is connected, microprocessor is connected with program control circuit breaker is unidirectional by driver module, state detector respectively with microprocessor be connected that circuit breaker is unidirectional to be connected.
The course of work of the present invention:
Program control circuit breaker+control module pattern:
Adopt program control circuit breaker as the major loop separating/closing mechanism, adopt microprocessor to gather the charger output voltage/electric current, and reserve PORT COM and contact input output port, by driver module control circuit breaker deciliter, adopt simultaneously mechanical interlocked mode to guarantee its Reliability of Microprocessor.
Characteristics: directly gather the charger state output terminal, not disturbed by extraneous factor, guaranteed the authenticity of information and the rapidity of action; Adopt the program control circuit breaker of high-performance, electromagnetic mechanical type switch deciliter, reliability is safe; Delay time: depend on that direct current vows the pressures/current detecting time, detect direct current and vow that pressures/electric current need to judge voltage change process and carry out filtering, in order to avoid judge by accident, program control breaker mechanical operate time, generally need several seconds.
Acquisition method one: in order accurately to gather the charger output voltage, and not affected by bus or voltage accumulator battery voltage, need the serial connection heavy-duty diode, can cause thus having voltage drop between charger output voltage and the busbar voltage, about general 1V, therefore, the output voltage of charger should be adjusted into busbar voltage+1V;
Acquisition method two: series diode not, fall by voltage, during charger output fault, charger output end voltage=battery voltage, therefore, voltage falls=float charge voltage/even charging voltage-battery voltage.
The charger output current is judged:
Under normal circumstances, the machine utilization electric current provides by charger, and solenoid operated closing mechanism needs charger and batteries jointly to provide, and therefore, judges whether fault by gathering the charger output current.
Charger output fault is judged: device is reserved input interface and communication interface, can connect the fault output contact/PORT COM of charger, as the fault basis for estimation.Device is reserved RCI, can pass through backstage Long-distance Control switching state.
When carrying out withstand voltage test, control module must disconnect with major loop, in order to avoid damage controller.Because the direct-current dual power automatic switching control equipment is the switching state of controlling between two charger direct currents outputs and the bus, therefore, normal power source and stand-by power supply all need power on, and are in the Hot Spare state.
The direct-current dual power automatic switching control equipment has following functions:
Have automatic, manual and the disconnected three kinds of patterns of complete shut-down:
Automatic mode: the guidance command according to the stray arrow pressure/lower current limit of adjusting, the charger fault output contact information that reaches input and PORT COM receive, automatically switch through behind the delay time of adjusting;
Manual mode: the switching state of manual operation normal power source and stand-by power supply;
The complete shut-down pattern of breaking: normal power source and stand-by power supply are all cut off, out of service.
Input message: as the Rule of judgment that whether needs under the automatic mode to switch.
Charger output fault: device is inner to be gathered automatically.
Contact input interface: can connect charger malfunction output contact or Long-distance Control contact.PORT COM: can connect charger, receive the charger fault message; Or connect other host computer receiving remote control commands.
Output information: other information such as the operating state that output equipment is current and warning message.
PORT COM: can with the equipment connections such as host computer, carry out information transmission and Long-distance Control.Contact input interface: provide without source contact output, gather for other equipment.
Claims (1)
1. direct-current dual power automatic switching control equipment, it is characterized in that: the mode of operation diverter switch is connected with microprocessor, charging voltage acquisition module and microprocessor interconnect, PORT COM and microprocessor interconnect, the input contact is connected with microprocessor is unidirectional, the indication of microprocessor and state is connected with output contact and is connected, and microprocessor is connected with program control circuit breaker is unidirectional by driver module, state detector respectively with microprocessor be connected that circuit breaker is unidirectional to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210338142XA CN102891529A (en) | 2012-09-13 | 2012-09-13 | Automatic switching device of direct current dual power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210338142XA CN102891529A (en) | 2012-09-13 | 2012-09-13 | Automatic switching device of direct current dual power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102891529A true CN102891529A (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210338142XA Pending CN102891529A (en) | 2012-09-13 | 2012-09-13 | Automatic switching device of direct current dual power |
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| CN (1) | CN102891529A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193914A (en) * | 2018-08-22 | 2019-01-11 | 广州市保伦电子有限公司 | A kind of redundant power intelligent controlling device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2766439Y (en) * | 2004-06-30 | 2006-03-22 | 浙江巨邦电器有限公司 | Automatic switch device for power supply |
| CN202374037U (en) * | 2011-12-27 | 2012-08-08 | 广西电控电气集团有限公司 | Double-power on-line automatic switching device |
| CN202737573U (en) * | 2012-09-13 | 2013-02-13 | 辽宁省电力有限公司葫芦岛供电公司 | DC dual-power automatic switching control device |
-
2012
- 2012-09-13 CN CN201210338142XA patent/CN102891529A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2766439Y (en) * | 2004-06-30 | 2006-03-22 | 浙江巨邦电器有限公司 | Automatic switch device for power supply |
| CN202374037U (en) * | 2011-12-27 | 2012-08-08 | 广西电控电气集团有限公司 | Double-power on-line automatic switching device |
| CN202737573U (en) * | 2012-09-13 | 2013-02-13 | 辽宁省电力有限公司葫芦岛供电公司 | DC dual-power automatic switching control device |
Non-Patent Citations (1)
| Title |
|---|
| 赵军等: "变电站直流电源远程监控及维护系统设计", 《水电能源科学》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193914A (en) * | 2018-08-22 | 2019-01-11 | 广州市保伦电子有限公司 | A kind of redundant power intelligent controlling device |
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Application publication date: 20130123 |