CN105375634A - Monitoring system of high voltage switch cabinet - Google Patents
Monitoring system of high voltage switch cabinet Download PDFInfo
- Publication number
- CN105375634A CN105375634A CN201510865922.3A CN201510865922A CN105375634A CN 105375634 A CN105375634 A CN 105375634A CN 201510865922 A CN201510865922 A CN 201510865922A CN 105375634 A CN105375634 A CN 105375634A
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- Prior art keywords
- voltage
- current
- switch cabinet
- module
- power supply
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
Abstract
The present invention discloses a monitoring system of a high voltage switch cabinet. The monitoring system of the high voltage switch cabinet comprises a controller, a monitoring device, a mutual inductance self-power-supplying power supply, a warning device and a display. The monitoring device is configured to monitor current and voltage signals of the bus in the high voltage switch cabinet; the mutual inductance self-power power supply is configured to obtain the induced voltage of the bus and provide power supply for a current and voltage monitoring device; the controller is arranged at the exterior of the high voltage switch cabinet and configured to receive monitoring signals emitted by the monitoring device, perform processing and send the processing results to the display for displaying; and the warning device is configured to emit an alarm message when the monitoring device monitors the normality of signals. A high voltage switch cabinet is systematically monitored so that workers outside may visually observe the information in the high voltage switch cabinet, therefore the monitoring system of a high voltage switch cabinet has an effect for effective monitoring.
Description
Technical field
The invention belongs to automation control area, be specifically related to a kind of high-tension switch cabinet monitoring system.
Background technology
High-tension switch cabinet refers to for electric power system generating, transmission of electricity, distribution, electric energy conversion and plays the effects such as break-make, control or protection in consuming; high-tension switch cabinet is by making the electric equipment products of electric pressure at 3.6kV ~ 550kV; high voltage isolator and earthed switch, high voltage load switch, high pressure automatic reclosing and sectionalizer, several large classes such as high-voltage actuating mechanism, high-voltage explosion-proof power distribution equipment and high-tension switch cabinet.
High-tension switch cabinet is complete combination product, though hundreds of production firms are had domestic at present, but its core component still adopts the product of import to be main, if run into technical problem, plant maintenance is all cumbersome with replacing, therefore, when budget is abundant, should select well-known brand, because it is had sufficient supplies, solution efficiency comparison when encountering problems is high as far as possible.
High-tension switch cabinet volume is comparatively large, and therefore, cabinet material is very large to price, and generally, part stent etc. all adopt import aluminizing zine plate, and door-plate then adopts 300 serial quality steel plates.
On switch cubicle, conventional line has two kinds of connected modes substantially: (1) line cable room connects, and (2) line is drawn by cabinet top wall bushing, and the bus bridge frame that is connected with bus bridge frame is connected with overhead wire through wall bushing again.Also have a few users, cable frame is introduced by cabinet top, connects in cabinet, and cabinet top connects, and separately establishes safe rack.Provide primary system figure and standard scheme when user orders goods, but line mode can not be expressed completely fully aware of, user should on-the-spot actual installation require to be illustrated as appropriate in technical protocol, to during in-site installation, difficulty occurs.
On primary system figure, selected circuit breaker, shows that circuit breaker model, rated operational voltage, rated operational current also must be selected circuit breaker outward and cut-off capacity.Have user's drawing, circuit breaker cut-offs capacity and does not select, and brings difficulty when making manufactory carry out engineering design, and cut-offfing Capacity Selection will select according to system short-circuit parameter, if it is be difficult to make selecting properly that system short-circuit parameter is not understood by manufactory.Also some user's drawing, does not consider system short-circuit parameter situation, blindly selects highly to cut-off parameter, causes unnecessary waste money.It is very important that selecting properly cut-offs capacity, should ensure safe operation, considers reduction product cost again.
High-tension switch cabinet, because its electric pressure is high, therefore, its monitoring is a very scabrous problem in the industry always, and a lot of monitoring device all can not reach the effect effectively detected.
The many employings of prior art middle-high voltage switch independently supervising device are monitored, and like this, outworker can not observe the running status of switch cubicle intuitively, can not effectively be monitored.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of high-tension switch cabinet monitoring system, the problem that the operating state solving prior art middle-high voltage switch can not intuitively be monitored effectively.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of high-tension switch cabinet monitoring system, comprise controller, monitoring device, mutual inductance automatic electricity getting power supply, warning device, display, described monitoring device is for monitoring the current and voltage signals of bus in high-tension switch cabinet, mutual inductance automatic electricity getting power supply is for obtaining bus induced voltage, and provide power supply for current/voltage monitoring device, controller is arranged at the outside of high-tension switch cabinet, the monitor signal sent for receiving monitoring device is gone forward side by side row relax, result is sent to display show, warning device is used for when the signal that monitoring device monitors occurs abnormal, send warning message.
Described supervising device comprises voltage sampling module, transformer, voltage detection module, overvoltage protective module, current sampling module, current detection module, overcurrent protection module, relay switch, described relay switch is series at the output of high-tension switch cabinet, described voltage sampling module acquisition voltage sampling signal exports voltage detection module to and carries out voltage detecting after transformer pressure-reducing, current sampling module exports current detection module to carry out current detecting for obtaining current sampling signal, overvoltage protective module is used for when voltage exceedes maximum voltage value, send relay control signal, control relay disconnects output signal, overcurrent protection module is used for when electric current exceedes lowest high-current value, send relay control signal, control relay disconnects output signal, when this device generation overcurrent, during overvoltage, by overcurrent, overvoltage signal is sent to controller.
Described supervising device also comprises wireless transport module, for overcurrent, overvoltage signal are wirelessly transferred to controller.
The processor of described wireless transport module is Zigbee family chip.
Described mutual inductance automatic electricity getting power supply comprises control chip, power coil, rectification circuit, voltage-limiting current-limiting protection module, DC-DC Voltage stabilizing module, super capacitor charging circuit, super capacitor, super capacitor power supply circuits; Wherein power coil obtains induced current; induced current is after rectification; by voltage-limiting current-limiting protection circuit; be input to DC-DC Voltage stabilizing module; electric current is transformed into stable electric current through DC-DC Voltage stabilizing module and exports; output current is access super capacitor charging circuit on the one hand, is super capacitor charging, and by output current, through overpower adjustment, rectifying and wave-filtering and power conversion, to convert required burning voltage to be load supplying and charge for standby battery on the other hand.
Compared with prior art, the present invention has following beneficial effect:
1, system high-tension switch cabinet is monitored, outworker can observe the information in switch cubicle intuitively, and play the effect effectively monitored, the miscellaneous part that mutual inductance automatic electricity getting power supply is monitoring device is adopted to provide power supply, effectively make use of the advantage of mutual inductance automatic electricity getting, save the energy.
2, when line failure, adopt the output signal of relay switch cutoff high switch cubicle, avoid the damage causing external equipment, control flexibly.
Embodiment
Below structure of the present invention and the course of work are described further.
A kind of high-tension switch cabinet monitoring system, comprise controller, monitoring device, mutual inductance automatic electricity getting power supply, warning device, display, described monitoring device is for monitoring the current and voltage signals of bus in high-tension switch cabinet, mutual inductance automatic electricity getting power supply is for obtaining bus induced voltage, and provide power supply for current/voltage monitoring device, controller is arranged at the outside of high-tension switch cabinet, the monitor signal sent for receiving monitoring device is gone forward side by side row relax, result is sent to display show, warning device is used for when the signal that monitoring device monitors occurs abnormal, send warning message.
System high-tension switch cabinet is monitored, outworker can observe the information in switch cubicle intuitively, and plays the effect effectively monitored, and adopts the miscellaneous part that mutual inductance automatic electricity getting power supply is monitoring device to provide power supply, effectively make use of the advantage of mutual inductance automatic electricity getting, save the energy.
Described supervising device comprises voltage sampling module, transformer, voltage detection module, overvoltage protective module, current sampling module, current detection module, overcurrent protection module, relay switch, described relay switch is series at the output of high-tension switch cabinet, described voltage sampling module acquisition voltage sampling signal exports voltage detection module to and carries out voltage detecting after transformer pressure-reducing, current sampling module exports current detection module to carry out current detecting for obtaining current sampling signal, overvoltage protective module is used for when voltage exceedes maximum voltage value, send relay control signal, control relay disconnects output signal, overcurrent protection module is used for when electric current exceedes lowest high-current value, send relay control signal, control relay disconnects output signal, when this device generation overcurrent, during overvoltage, by overcurrent, overvoltage signal is sent to controller.
Described supervising device also comprises wireless transport module, for overcurrent, overvoltage signal are wirelessly transferred to controller.
The processor of described wireless transport module is Zigbee family chip.
Described mutual inductance automatic electricity getting power supply comprises control chip, power coil, rectification circuit, voltage-limiting current-limiting protection module, DC-DC Voltage stabilizing module, super capacitor charging circuit, super capacitor, super capacitor power supply circuits; Wherein power coil obtains induced current; induced current is after rectification; by voltage-limiting current-limiting protection circuit; be input to DC-DC Voltage stabilizing module; electric current is transformed into stable electric current through DC-DC Voltage stabilizing module and exports; output current is access super capacitor charging circuit on the one hand, is super capacitor charging, and by output current, through overpower adjustment, rectifying and wave-filtering and power conversion, to convert required burning voltage to be load supplying and charge for standby battery on the other hand.
Concrete each module work principle of mutual inductance automatic electricity getting power supply is as follows:
Power coil: the iron core adopting multi-disc silicon steel to be stamped to form, by electromagnetic induction principle, obtains alternating voltage and electric current supply electronic device work capacity at power coil output.
Rectification: voltage-doubler rectification is carried out to power coil, coil input voltage when increase bus current is very low, for power supply voltage stabilizing chip below provides enough operating voltages; And convert alternating current to direct current.
Pressure-limit current-limit: within using voltage stabilizing chip that input voltage is limited in 5v, and dredged by unnecessary electric current, release excess energy, within guarantee electronic chip is below operated in normal voltage range, and can not damage because of unnecessary energy.
DC-DC power source voltage stabilizing: adopt charge pumping technique, low commutating voltage under low bus current condition is raised as DC-DC chip provides required starting resistor (energy requirement is very low), chip so just can be made to start working low input is elevated to and the communication chip operating voltage be stabilized in needed for us provides enough electric energy simultaneously.
Super capacitor charging circuit: comparatively large at bus current, the electric energy induced is more, when DC-DC voltage stabilizing chip supply of electrical energy is very sufficient, by electrical power storage unnecessary for a part in super capacitor, so that the possible period of want or need.This charging circuit controls it by subsequent communications sampling A/D chip and when opens, and first the 3.3v voltage that DC-DC power source voltage stabilizing exports is risen to 5v super capacitor charging voltage; And the charge controlling chip adopted, to the size of current of charging, time length, full electricity the details such as stops filling and manages.
Super capacitor power supply circuits: start under the state of subsequent communications sampling A/D chip electric energy undersupply, the 3.3v voltage of the electric energy conversion Cheng Wendian in super capacitor is supplied follow-up chip to use, ensure that it can normally be made within a certain period of time, improve the adaptability to changes of whole instrument.
Claims (5)
1. a high-tension switch cabinet monitoring system, it is characterized in that: comprise controller, monitoring device, mutual inductance automatic electricity getting power supply, warning device, display, described monitoring device is for monitoring the current and voltage signals of bus in high-tension switch cabinet, mutual inductance automatic electricity getting power supply is for obtaining bus induced voltage, and provide power supply for current/voltage monitoring device, controller is arranged at the outside of high-tension switch cabinet, the monitor signal sent for receiving monitoring device is gone forward side by side row relax, result is sent to display show, warning device is used for when the signal that monitoring device monitors occurs abnormal, send warning message.
2. high-tension switch cabinet monitoring system according to claim 1, it is characterized in that: described supervising device comprises voltage sampling module, transformer, voltage detection module, overvoltage protective module, current sampling module, current detection module, overcurrent protection module, relay switch, described relay switch is series at the output of high-tension switch cabinet, described voltage sampling module acquisition voltage sampling signal exports voltage detection module to and carries out voltage detecting after transformer pressure-reducing, current sampling module exports current detection module to carry out current detecting for obtaining current sampling signal, overvoltage protective module is used for when voltage exceedes maximum voltage value, send relay control signal, control relay disconnects output signal, overcurrent protection module is used for when electric current exceedes lowest high-current value, send relay control signal, control relay disconnects output signal, when this device generation overcurrent, during overvoltage, by overcurrent, overvoltage signal is sent to controller.
3. high-tension switch cabinet monitoring system according to claim 2, is characterized in that: described supervising device also comprises wireless transport module, for overcurrent, overvoltage signal are wirelessly transferred to controller.
4. high-tension switch cabinet monitoring system according to claim 3, is characterized in that: the processor of described wireless transport module is Zigbee family chip.
5. high-tension switch cabinet monitoring system according to claim 1, it is characterized in that: described mutual inductance automatic electricity getting power supply comprises control chip, power coil, rectification circuit, voltage-limiting current-limiting protection module, DC-DC Voltage stabilizing module, super capacitor charging circuit, super capacitor, super capacitor power supply circuits; Wherein power coil obtains induced current; induced current is after rectification; by voltage-limiting current-limiting protection circuit; be input to DC-DC Voltage stabilizing module; electric current is transformed into stable electric current through DC-DC Voltage stabilizing module and exports; output current is access super capacitor charging circuit on the one hand, is super capacitor charging, and by output current, through overpower adjustment, rectifying and wave-filtering and power conversion, to convert required burning voltage to be load supplying and charge for standby battery on the other hand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510865922.3A CN105375634A (en) | 2015-12-02 | 2015-12-02 | Monitoring system of high voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510865922.3A CN105375634A (en) | 2015-12-02 | 2015-12-02 | Monitoring system of high voltage switch cabinet |
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| CN105375634A true CN105375634A (en) | 2016-03-02 |
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| CN201510865922.3A Pending CN105375634A (en) | 2015-12-02 | 2015-12-02 | Monitoring system of high voltage switch cabinet |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106781389A (en) * | 2016-12-28 | 2017-05-31 | 重庆金鑫科技产业发展有限公司 | A kind of controller and control system |
| CN107124038A (en) * | 2017-06-01 | 2017-09-01 | 合肥尚强电气科技有限公司 | A kind of efficient real time comprehensive managing and control system of power distribution room |
| CN108321709A (en) * | 2018-01-09 | 2018-07-24 | 国网山东省电力公司滨州供电公司 | Observation system in closed high-voltage switch cabinet |
| CN109693625A (en) * | 2017-10-24 | 2019-04-30 | 上汽通用汽车有限公司 | Automobile standby power supply module and automobile power supply system comprising it |
| CN112071684A (en) * | 2020-07-14 | 2020-12-11 | 南京电博机器人技术有限公司 | Disconnecting link switch state monitoring system |
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| US20130050880A1 (en) * | 2011-08-25 | 2013-02-28 | Hamilton Sundstrand Corporation | Solid state power controller for high voltage direct current systems |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106781389A (en) * | 2016-12-28 | 2017-05-31 | 重庆金鑫科技产业发展有限公司 | A kind of controller and control system |
| CN107124038A (en) * | 2017-06-01 | 2017-09-01 | 合肥尚强电气科技有限公司 | A kind of efficient real time comprehensive managing and control system of power distribution room |
| CN109693625A (en) * | 2017-10-24 | 2019-04-30 | 上汽通用汽车有限公司 | Automobile standby power supply module and automobile power supply system comprising it |
| CN108321709A (en) * | 2018-01-09 | 2018-07-24 | 国网山东省电力公司滨州供电公司 | Observation system in closed high-voltage switch cabinet |
| CN112071684A (en) * | 2020-07-14 | 2020-12-11 | 南京电博机器人技术有限公司 | Disconnecting link switch state monitoring system |
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Application publication date: 20160302 |