CN101800440A - System for monitoring distribution network state and method thereof - Google Patents
System for monitoring distribution network state and method thereof Download PDFInfo
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- CN101800440A CN101800440A CN201010132635A CN201010132635A CN101800440A CN 101800440 A CN101800440 A CN 101800440A CN 201010132635 A CN201010132635 A CN 201010132635A CN 201010132635 A CN201010132635 A CN 201010132635A CN 101800440 A CN101800440 A CN 101800440A
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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
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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
- 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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Abstract
The invention provides a system for monitoring distribution network state. The system comprises a bureau distribution network equipment data center, a station distribution network equipment data center, an infrared point temperature monitoring unit, a switch electrical parameter monitoring unit, an environmental humiture monitoring unit, a thermal infrared image monitoring instrument and a distribution network state monitoring software platform, wherein the bureau distribution network equipment data center is connected with the station distribution network equipment data center in a mode of optical fiber communication, wireless communication or carrier communication; the station distribution network equipment data center is connected with the infrared point temperature monitoring unit, the switch electrical parameter monitoring unit, and the environmental humiture monitoring unit through a RS485 respectively; the station distribution network equipment data center is further connected with the thermal infrared image monitoring instrument through optical fibers; and the matched distribution network state monitoring software platform is arranged on host computers of the bureau distribution network equipment data center and the station distribution network equipment data center. As the data information of diversification measurement covers all state parameters of the distribution network equipment, the system for monitoring the distribution network state ensures that perfect and full monitoring is provided for equipment objects.
Description
Technical field
The present invention relates to a kind of electric network state monitoring system and method, be specifically related to a kind of system for monitoring distribution network state and monitoring method thereof.
Background technology
Along with the need for electricity amount increases and the electricity supply and demand marketization, the user improves constantly the requirement of power supply reliability, the quality of power supply and good service, and power distribution network equipment is being brought into play important effect in realizing reliable power supply.
Number of devices is big, of a great variety in the power distribution network, and some equipment such as distribution transformer itself is just extremely expensive, and temperature, ambient temperature and humidity etc. are very important for the normal operation of these power distribution network equipment.Need to pass through: the working temperature of cable joint, high-low pressure cabinet, ring main unit turnover line, on-load switch, distribution transformer, on-pole switch to the physical parameter in the power distribution network; Electric parameter: the drop-out current of on/off switch coil current, vacuum switch etc.; Environment parameter: ambient temperature and humidity etc.; Comprise that also the Infrared Thermogram to main equipment in distribution transformer chamber, hyperbaric chamber, low-pressure chamber, the control room carries out real-time state monitoring etc., can in time the equipment operation operating mode be reflected, make the staff in time find each equipment running status of power distribution network, thereby in time find fault and fix a breakdown.
At present domestic power distribution network on-line monitoring technique exists some shortcomings, does not have data-interface such as the equipment of each producer, fights separately, not architectonical; Telecommunication aspect shortcoming generally can only be in the monitoring of being correlated with on the spot, and inconvenient related personnel monitors; In addition, because the data between each producer are incompatible, therefore form the on-line monitoring system that each monitoring project is combined, quite difficulty just becomes.
In the prior art, also relate to monitoring system for power distribution networks is carried out improved open source literature, for example the patent No. is the utility model patent " distribution network monitoring management system " of ZL200820004999.7, involved a kind of distribution network monitoring management system, this system comprises a plurality of monitoring of electric power terminal that are fitted with wireless communication terminal, communication network, the APN router, the distribution monitor net, wherein said monitoring of electric power terminal is installed on each monitoring point respectively and is connected with cable or electric equipment, described communication network is connected by the APN special line with described APN router, described APN router is connected with described distribution monitor net, is provided with fire compartment wall between described APN router and the described distribution monitor net; Described distribution monitor net is fitted with distribution network monitoring management software.Yet the shortcoming that this utility model exists is: this supervisory control system function singleness, the technological means complexity of employing is unfavorable for applying.
And for example application number is 200610137725.0 patent of invention " wireless on-line monitoring system of electric distribution network cable connector running state and method ", relate to a kind of wireless on-line monitoring system and method for electric distribution network cable connector running state, described monitoring system, comprise: one or more terminal harvesters, be used under the control of controller, measure the operational factor of the electric distribution network cable connector under the running status, wherein, the terminal harvester is powered by suspension electromagnetic induction formula communication power supply unit; One or more controllers are used to control one or more terminal harvesters, obtain the operational factor of terminal harvester collection and operational factor is transferred to server; And server, be used to handle and analyze the operational factor of self-controller, determine the running status of electric distribution network cable connector and the following running status of prediction electric distribution network cable connector.This invention is determined the operating state of electric distribution network cable connector by temperature under the on-line monitoring electric distribution network cable connector running state and electric current, to improve the fail safe and the reliability of power distribution network operation, the power transmission and distribution ability of excavating power equipment.The shortcoming that this invention exists is: this supervisory control system function singleness, only can monitor cable connector running state, and the technological means that adopts is still complicated, is unfavorable for applying.
Therefore, be necessary to design a kind of system for monitoring distribution network state and monitoring method thereof that can overcome above-mentioned shortcoming, to satisfy the monitoring needs of power distribution network equipment.
Summary of the invention
The purpose of this invention is to provide a kind of system for monitoring distribution network state and monitoring method thereof, the on-line monitoring project is combined, data between projects are compatible, can unify data are put into same database, analyze and manage with same software, thereby realize multiple function and easy to operate.
The technical solution adopted in the present invention is: a kind of system for monitoring distribution network state, it is characterized in that, comprise: office side's distribution net equipment data center, the side of station distribution net equipment data center, the infrared point temperature monitoring means, switch electric parameter monitoring means, the ambient temperature and humidity monitoring means, infrared thermal imagery monitor and distribution status monitoring software platform, office side distribution net equipment data center passes through optical fiber, wireless or carrier communication mode realizes being connected with station side's distribution net equipment data center, the side of station distribution net equipment data center by RS485 respectively with the infrared point temperature monitoring means, switch electric parameter monitoring means, the ambient temperature monitoring means is realized connecting, the side of station distribution net equipment data center also realizes being connected by optical fiber and infrared thermal imagery monitor, is installed on the main frame of office side distribution net equipment data center and station side distribution net equipment data center with the distribution status monitoring software platform of system support.The technique effect that brings thus is at least: the data message that this diversification is measured is contained all state parameters of electric distribution network electrical equipment, adopts multiple measurement means to combine, and guaranteeing provides perfect, the most comprehensive monitoring to device object; The distributed monitoring pattern makes each monitoring terminal independently finish the collection of relevant parameter type, and all monitoring means mutual group are built into a complete electric distribution network electrical equipment " monitoring net ", realizes the monitoring in real time synchronously to whole power distribution network equipment.
Aforesaid system for monitoring distribution network state, it is characterized in that: described infrared point temperature monitoring means comprises: optical system, the infrared point temperature transducer, accurate operational amplifier, A/D sample conversion circuit, infrared MCU treatment circuit, the external communication interface circuit, infrared display module, the infrared point temperature transducer is connected with A/D sample conversion circuit, precisely operational amplifier links to each other with infrared MCU control circuit, infrared point temperature sensor sample temperature signal, by infrared MCU control circuit control A/D sampling, by accurate operational amplifier, be sent to station side distribution net equipment data center by the external communication interface circuit, and by infrared display module displays temperature information.
Aforesaid system for monitoring distribution network state, it is characterized in that: described switch electric parameter monitoring means comprises: current sensor, acceleration transducer, the current/voltage-converted circuit, amplify, filter circuit, charge amplifier, the resonance and demodulation device, switch MCU treatment circuit and switch external communication interface circuit, current sensor and acceleration transducer respectively with the current/voltage-converted circuit, charge amplifier links to each other, the current signal that is obtained by current sensor passes through current/voltage-converted circuit and amplification, filter circuit is realized current/voltage-converted and filtering, is obtained the effective value of electric current again by switch MCU treatment circuit calculating mean value; Acceleration transducer obtains vibration information and converts vibration signal to charge signal, convert voltage signal to by charge amplifier, obtain fault-signal by the resonance and demodulation device again, analyzed and handled by environment MCU treatment circuit again, the information of gained is sent to station side distribution net equipment data center by the switch external communication interface circuit.The technique effect that brings thus is at least: make this switch electric parameter monitoring means can realize the monitoring of high accuracy switch electric parameter.
Aforesaid system for monitoring distribution network state, it is characterized in that: described ambient temperature and humidity monitoring means comprises: Temperature Humidity Sensor, operational amplifier, A/D gathers change-over circuit, environment MCU treatment circuit, environment display module and environmental externality communication interface circuit, Temperature Humidity Sensor is connected with operational amplifier, A/D gathers change-over circuit and links to each other with environment MCU treatment circuit, the output of environment MCU treatment circuit is connected with environment display module and environmental externality communication interface circuit, by Temperature Humidity Sensor sampling temperature-humidity signal, through operational amplifier, A/D gathers change-over circuit conversion and environment MCU processing circuit processes, is sent to station side distribution net equipment data center by environment display module displays temperature and humidity information and by the environmental externality communication interface circuit.The technique effect that brings thus is at least: make this ambient temperature and humidity monitoring means can realize the monitoring of high accuracy ambient temperature and humidity.
Aforesaid system for monitoring distribution network state is characterized in that: described infrared thermal imagery monitor comprises a thermal infrared imager.
Aforesaid system for monitoring distribution network state is characterized in that: described distribution status monitoring software platform comprises: infrared point temperature monitoring management sub-platform, infrared thermal imagery monitoring management sub-platform, switch electric parameter monitoring management sub-platform and ambient temperature and humidity monitoring management sub-platform.The technique effect that brings thus is at least: make this distribution status monitoring software platform can realize managing infrared point temperature monitoring, infrared thermal imagery monitoring, the monitoring of switch electric parameter and ambient temperature and humidity monitoring respectively.
The present invention also provides a kind of monitoring method that adopts aforesaid system for monitoring distribution network state, it is characterized in that: office side's distribution net equipment data center and station side distribution net equipment data center realize the on-line monitoring of temperature, thermal imagery and ambient temperature and humidity to device context by operating distribution status monitoring software platform, comprising:
(1) controls the initial time of thermometric and the cycle of sampling by infrared point temperature monitoring management sub-platform, show a certain by the temperature information of thermometric equipment or parts real-time continuous, demonstration is by the Current Temperatures of the equipment of thermometric or parts, provides early warning signal in real time at the temperature conditions of equipment, parts;
(2) by infrared thermal imagery monitoring management sub-platform, mouse moves control point for measuring temperature and scope, show current device video and infrared thermal imagery information simultaneously, take preservation infrared thermal imagery and video information as data backup, manually set the operations such as high alarm setting of many grades of equipment or parts, realize off-limit alarm;
(3) pass through the drop-out current that switch electric parameter monitoring management sub-platform is measured vacuum switch, carry out the electric residual life analysis and the assessment of switch, drafting is closed, switching winding current characteristics curve carries out switching on and shutting down tool life appraisal, and the assessment result of difference display switch mechanical endurance and electric life;
(4) show current environmental temperature information and current environment humidity information by ambient temperature and humidity monitoring management sub-platform.
Aforesaid state of electric distribution network monitoring method is characterized in that: the workflow of described infrared point temperature monitoring means is as follows:
(1) the external communication interface circuit of infrared point temperature transducer is accepted the device address by the transmission of station side's distribution net equipment data center, the infrared MCU treatment circuit comparison device address of each infrared point temperature transducer correspondence, if equate with the equipment of itself address, then carry out temperature survey, if unequal, then do not operate;
(2) after infrared MCU treatment circuit is received thermometric instruction, carry out temperature acquisition, the temperature signal that collects is delivered to infrared MCU treatment circuit through A/D sample conversion circuit again and is carried out algorithm process through accurate operational amplifier, obtains temperature value;
(3) temperature value that calculates of infrared MCU treatment circuit shows at infrared display module, is sent to station side distribution net equipment data center by the external communication interface circuit again;
(4) the infrared point temperature transducer receives next device address and repeats said process, all finishes detection until all equipment.
Aforesaid state of electric distribution network monitoring method is characterized in that: the workflow of described switch electric parameter monitoring means is as follows:
(1) the external communication interface circuit of switch electric parameter monitoring means is accepted the device address by the transmission of station side's distribution net equipment data center, the switch MCU treatment circuit comparison device address of each switch electric parameter monitoring means correspondence, if equate with the equipment of itself address, then monitor, if unequal, then do not operate;
(2) after switch MCU treatment circuit is received the instruction of monitoring, carry out information gathering;
(3) value of information such as the effective value of the electric current that calculates of switch MCU treatment circuit, fault-signal is sent to station side distribution net equipment data center by the switch external communication interface circuit;
(4) switch electric parameter monitoring means receives next device address and repeats said process, all finishes detection until all equipment.
Aforesaid state of electric distribution network monitoring method is characterized in that: the workflow of described ambient temperature and humidity monitoring means is as follows:
(1) the environmental externality communication interface circuit of ambient temperature and humidity monitoring means is accepted the monitoring order by the transmission of station side's distribution net equipment data center;
(2) receive the instruction that ambient temperature and humidity measures after, carry out temperature, humidity collection;
(3) temperature, the humidity value that calculate of the environment MCU treatment circuit of ambient temperature and humidity monitoring means shows at the environment display module, is sent to station side distribution net equipment data center by the external communication interface circuit again.
The invention has the beneficial effects as follows: the data message that diversification of the present invention is measured is contained all state parameters of electric distribution network electrical equipment, adopts multiple measurement means to combine, and guaranteeing provides perfect, the most comprehensive monitoring to device object; The distributed monitoring pattern makes each monitoring terminal independently finish the collection of relevant parameter type, and all monitoring means mutual group are built into a complete electric distribution network electrical equipment " monitoring net ", realizes the monitoring in real time synchronously to whole power distribution network equipment.With the software platform of system support status information of equipment is analyzed and state estimation, out of order equipment is carried out the failure diagnosis location, and finally propose the maintenance suggestion of equipment.
Description of drawings
Fig. 1 is the overall system block diagram of system for monitoring distribution network state of the present invention.
Fig. 2 is the infrared point temperature detecting unit schematic diagram of system for monitoring distribution network state of the present invention.
Fig. 3 is the switch electric parameter monitoring means schematic diagram of system for monitoring distribution network state of the present invention.
Fig. 4 is the ambient temperature monitoring means schematic diagram of system for monitoring distribution network state of the present invention.
Fig. 5 is each monitoring means flow chart of system for monitoring distribution network state of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, the system for monitoring distribution network state that the embodiment of the invention provides, comprise: office side's distribution net equipment data center, the side of station distribution net equipment data center, the infrared point temperature monitoring means, switch electric parameter monitoring means, the ambient temperature and humidity monitoring means, infrared thermal imagery monitor and distribution status monitoring software platform, office side distribution net equipment data center passes through optical fiber, wireless or carrier communication mode realizes being connected with station side's distribution net equipment data center, the side of station distribution net equipment data center by RS485 respectively with the infrared point temperature monitoring means, switch electric parameter monitoring means, the ambient temperature monitoring means is realized connecting, the side of station distribution net equipment data center also realizes being connected by optical fiber and infrared thermal imagery monitor, is installed on the main frame of office side distribution net equipment data center and station side distribution net equipment data center with the distribution status monitoring software platform of system support.
Above-mentioned infrared point temperature monitoring means comprises: optical system, infrared point temperature transducer, accurate operational amplifier, AD sample conversion circuit, infrared MCU treatment circuit, external communication interface circuit, infrared display module.The infrared point temperature transducer is connected with A/D sample conversion circuit, links to each other with infrared MCU control circuit through accurate operational amplifier.After infrared point temperature sensor sample temperature signal, by infrared MCU control circuit control A/D sample conversion circuit sampling, by accurate operational amplifier, be sent to station side distribution net equipment data center by the external communication interface circuit, and by infrared display module displays temperature information.
Above-mentioned switch electric parameter monitoring means comprises: current sensor, acceleration transducer, current/voltage-converted circuit, amplification, filter circuit, charge amplifier, resonance and demodulation device, switch MCU treatment circuit and switch external communication interface circuit.Current sensor and acceleration transducer respectively with the current/voltage-converted circuit, charge amplifier links to each other, realize current/voltage-converted and filtering by the current signal that current sensor obtains by current/voltage-converted and amplifilter, obtain the effective value of electric current again by switch MCU treatment circuit calculating mean value; Acceleration transducer obtains vibration information and converts vibration signal to charge signal, convert voltage signal to by charge amplifier, obtain fault-signal by the resonance and demodulation device again, analyzed and handled by environment MCU treatment circuit again, the information of gained is sent to station side distribution net equipment data center by the switch external communication interface circuit.
Above-mentioned ambient temperature and humidity monitoring means comprises: Temperature Humidity Sensor, and operational amplifier, A/D gathers change-over circuit, environment MCU treatment circuit, environment display module and environmental externality communication interface circuit.Temperature Humidity Sensor is connected with operational amplification circuit, links to each other with environment MCU treatment circuit after A/D gathers change-over circuit, and the output of environment MCU treatment circuit is connected with environment display module and environmental externality communication interface circuit.By Temperature Humidity Sensor sample temperature signal, through operational amplifier, A/D gathers change-over circuit conversion and environment MCU processing circuit processes, is sent to station side distribution net equipment data center by environment display module displays temperature and humidity information and by the environmental externality communication interface circuit.
Above-mentioned infrared thermal imagery monitor comprises: a thermal infrared imager.
Above-mentioned distribution status monitoring software platform comprises: infrared point temperature monitoring management sub-platform, infrared thermal imagery monitoring management sub-platform, switch electric parameter monitoring management sub-platform and ambient temperature and humidity monitoring management sub-platform.
System work process is as follows:
Office side distribution net equipment data center and station side distribution net equipment data center realize the on-line monitoring of temperature, thermal imagery and ambient temperature and humidity to device context by operation distribution status monitoring software platform.
(1) controls the initial time of thermometric and the cycle of sampling by infrared point temperature monitoring management sub-platform, show a certain by the temperature information of thermometric equipment or parts real-time continuous, demonstration is by the Current Temperatures of the equipment of thermometric or parts, provides early warning signal in real time at the temperature conditions of equipment, parts.
(2) by infrared thermal imagery monitoring management sub-platform, mouse moves control point for measuring temperature and scope, show current device video and infrared thermal imagery information simultaneously, take preservation infrared thermal imagery and video information as data backup, manually set the operations such as high alarm setting of many grades of equipment or parts, realize off-limit alarm.
(3) pass through the drop-out current that switch electric parameter monitoring management sub-platform is measured vacuum switch, carry out the electric residual life analysis and the assessment of switch, drafting is closed, switching winding current characteristics curve carries out switching on and shutting down tool life appraisal, and the assessment result of difference display switch mechanical endurance and electric life.
(4) show current environmental temperature information and current environment humidity information by ambient temperature and humidity monitoring management sub-platform.
The workflow of infrared point temperature monitoring means is as follows:
(1) the external communication interface circuit of infrared point temperature transducer is accepted the device address by the transmission of station side's distribution net equipment data center, the infrared MCU treatment circuit comparison device address of each infrared point temperature transducer correspondence, if equate, then carry out temperature survey with the equipment of itself address; If unequal, then do not operate.
(2) after infrared MCU treatment circuit is received thermometric instruction, carry out temperature acquisition, the temperature signal that collects amplifies through accurate operational amplifier, delivers to infrared MCU treatment circuit through A/D sample conversion circuit again and carries out algorithm process, obtains temperature value.
(3) temperature value that calculates of infrared MCU treatment circuit shows at infrared display module, is sent to station side distribution net equipment data center by the external communication interface circuit again.
(4) the infrared point temperature transducer receives next device address and repeats said process, all finishes detection until all equipment.
The workflow of switch electric parameter monitoring means is as follows:
(1) the external communication interface circuit of switch electric parameter monitoring means is accepted the device address by the transmission of station side's distribution net equipment data center, the switch MCU treatment circuit comparison device address of each switch electric parameter monitoring means correspondence, if equate, then monitor with the equipment of itself address; If unequal, then do not operate.
(2) after switch MCU treatment circuit is received the instruction of monitoring, carry out information gathering.
(3) value of information such as the effective value of the electric current that calculates of switch MCU treatment circuit, fault-signal is sent to station side distribution net equipment data center by the switch external communication interface circuit.
(4) switch electric parameter monitoring means receives next device address and repeats said process, all finishes detection until all equipment.
The workflow of ambient temperature and humidity monitoring means is as follows:
(1) the environmental externality communication interface circuit of ambient temperature and humidity monitoring means is accepted the monitoring order by the transmission of station side's distribution net equipment data center.
(2) receive the instruction that ambient temperature and humidity measures after, carry out temperature, humidity collection.
(3) temperature, the humidity value that calculate of the environment MCU treatment circuit of ambient temperature and humidity monitoring means shows at the environment display module, is sent to station side distribution net equipment data center by the external communication interface circuit again.
The data message that diversification of the present invention is measured is contained all state parameters of electric distribution network electrical equipment, adopts multiple measurement means to combine, and guaranteeing provides perfect, the most comprehensive monitoring to device object; The distributed monitoring pattern makes each monitoring terminal independently finish the collection of relevant parameter type, and all monitoring means mutual group are built into a complete electric distribution network electrical equipment " monitoring net ", realizes the monitoring in real time synchronously to whole power distribution network equipment.With the software platform of system support status information of equipment is analyzed and state estimation, out of order equipment is carried out the failure diagnosis location, and finally propose the maintenance suggestion of equipment.
Claims (10)
1. system for monitoring distribution network state, it is characterized in that, comprise: office side's distribution net equipment data center, the side of station distribution net equipment data center, the infrared point temperature monitoring means, switch electric parameter monitoring means, the ambient temperature and humidity monitoring means, infrared thermal imagery monitor and distribution status monitoring software platform, office side distribution net equipment data center passes through optical fiber, wireless or carrier communication mode realizes being connected with station side's distribution net equipment data center, the side of station distribution net equipment data center by RS485 respectively with the infrared point temperature monitoring means, switch electric parameter monitoring means, the ambient temperature monitoring means is realized connecting, the side of station distribution net equipment data center also realizes being connected by optical fiber and infrared thermal imagery monitor, is installed on the main frame of office side distribution net equipment data center and station side distribution net equipment data center with the distribution status monitoring software platform of system support.
2. system for monitoring distribution network state according to claim 1, it is characterized in that: described infrared point temperature monitoring means comprises: optical system, the infrared point temperature transducer, accurate operational amplifier, A/D sample conversion circuit, infrared MCU treatment circuit, the external communication interface circuit, infrared display module, the infrared point temperature transducer is connected with A/D sample conversion circuit, precisely operational amplifier links to each other with infrared MCU control circuit, infrared point temperature sensor sample temperature signal, by infrared MCU control circuit control A/D sampling, by accurate operational amplifier, be sent to station side distribution net equipment data center by the external communication interface circuit, and by infrared display module displays temperature information.
3. system for monitoring distribution network state according to claim 1, it is characterized in that: described switch electric parameter monitoring means comprises: current sensor, acceleration transducer, the current/voltage-converted circuit, amplify, filter circuit, charge amplifier, the resonance and demodulation device, switch MCU treatment circuit and switch external communication interface circuit, current sensor and acceleration transducer respectively with the current/voltage-converted circuit, charge amplifier links to each other, the current signal that is obtained by current sensor passes through current/voltage-converted circuit and amplification, filter circuit is realized current/voltage-converted and filtering, is obtained the effective value of electric current again by switch MCU treatment circuit calculating mean value; Acceleration transducer obtains vibration information and converts vibration signal to charge signal, convert voltage signal to by charge amplifier, obtain fault-signal by the resonance and demodulation device again, analyzed and handled by environment MCU treatment circuit again, the information of gained is sent to station side distribution net equipment data center by the switch external communication interface circuit.
4. system for monitoring distribution network state according to claim 1, it is characterized in that: described ambient temperature and humidity monitoring means comprises: Temperature Humidity Sensor, operational amplifier, A/D gathers change-over circuit, environment MCU treatment circuit, environment display module and environmental externality communication interface circuit, Temperature Humidity Sensor is connected with operational amplifier, A/D gathers change-over circuit and links to each other with environment MCU treatment circuit, the output of environment MCU treatment circuit is connected with environment display module and environmental externality communication interface circuit, by Temperature Humidity Sensor sampling temperature-humidity signal, through operational amplifier, A/D gathers change-over circuit conversion and environment MCU processing circuit processes, is sent to station side distribution net equipment data center by environment display module displays temperature and humidity information and by the environmental externality communication interface circuit.
5. system for monitoring distribution network state according to claim 1 is characterized in that: described infrared thermal imagery monitor comprises a thermal infrared imager.
6. system for monitoring distribution network state according to claim 1 is characterized in that: described distribution status monitoring software platform comprises: infrared point temperature monitoring management sub-platform, infrared thermal imagery monitoring management sub-platform, switch electric parameter monitoring management sub-platform and ambient temperature and humidity monitoring management sub-platform.
7. monitoring method that adopts the described system for monitoring distribution network state of claim 1, it is characterized in that: office side's distribution net equipment data center and station side distribution net equipment data center realize the on-line monitoring of temperature, thermal imagery and ambient temperature and humidity to device context by operating distribution status monitoring software platform, comprising:
(1) controls the initial time of thermometric and the cycle of sampling by infrared point temperature monitoring management sub-platform, show a certain by the temperature information of thermometric equipment or parts real-time continuous, demonstration is by the Current Temperatures of the equipment of thermometric or parts, provides early warning signal in real time at the temperature conditions of equipment, parts;
(2) by infrared thermal imagery monitoring management sub-platform, mouse moves control point for measuring temperature and scope, show current device video and infrared thermal imagery information simultaneously, take preservation infrared thermal imagery and video information as data backup, manually set the operations such as high alarm setting of many grades of equipment or parts, realize off-limit alarm;
(3) pass through the drop-out current that switch electric parameter monitoring management sub-platform is measured vacuum switch, carry out the electric residual life analysis and the assessment of switch, drafting is closed, switching winding current characteristics curve carries out switching on and shutting down tool life appraisal, and the assessment result of difference display switch mechanical endurance and electric life;
(4) show current environmental temperature information and current environment humidity information by ambient temperature and humidity monitoring management sub-platform.
8. state of electric distribution network monitoring method according to claim 7 is characterized in that: the workflow of described infrared point temperature monitoring means is as follows:
(1) the external communication interface circuit of infrared point temperature transducer is accepted the device address by the transmission of station side's distribution net equipment data center, the infrared MCU treatment circuit comparison device address of each infrared point temperature transducer correspondence, if equate with the equipment of itself address, then carry out temperature survey, if unequal, then do not operate;
(2) after infrared MCU treatment circuit is received thermometric instruction, carry out temperature acquisition, the temperature signal that collects is delivered to infrared MCU treatment circuit through A/D sample conversion circuit again and is carried out algorithm process through accurate operational amplifier, obtains temperature value;
(3) temperature value that calculates of infrared MCU treatment circuit shows at infrared display module, is sent to station side distribution net equipment data center by the external communication interface circuit again;
(4) the infrared point temperature transducer receives next device address and repeats said process, all finishes detection until all equipment.
9. state of electric distribution network monitoring method according to claim 7 is characterized in that: the workflow of described switch electric parameter monitoring means is as follows:
(1) the external communication interface circuit of switch electric parameter monitoring means is accepted the device address by the transmission of station side's distribution net equipment data center, the switch MCU treatment circuit comparison device address of each switch electric parameter monitoring means correspondence, if equate with the equipment of itself address, then monitor, if unequal, then do not operate;
(2) after switch MCU treatment circuit is received the instruction of monitoring, carry out information gathering;
(3) value of information such as the effective value of the electric current that calculates of switch MCU treatment circuit, fault-signal is sent to station side distribution net equipment data center by the switch external communication interface circuit;
(4) switch electric parameter monitoring means receives next device address and repeats said process, all finishes detection until all equipment.
10. state of electric distribution network monitoring method according to claim 7 is characterized in that: the workflow of described ambient temperature and humidity monitoring means is as follows:
(1) the environmental externality communication interface circuit of ambient temperature and humidity monitoring means is accepted the monitoring order by the transmission of station side's distribution net equipment data center;
(2) receive the instruction that ambient temperature and humidity measures after, carry out temperature, humidity collection;
(3) temperature, the humidity value that calculate of the environment MCU treatment circuit of ambient temperature and humidity monitoring means shows at the environment display module, is sent to station side distribution net equipment data center by the external communication interface circuit again.
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Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101997341A (en) * | 2010-11-04 | 2011-03-30 | 东莞市运通泰电气科技有限公司 | Intelligent centralized control and management system for power substations |
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| CN101997341A (en) * | 2010-11-04 | 2011-03-30 | 东莞市运通泰电气科技有限公司 | Intelligent centralized control and management system for power substations |
| CN102033178A (en) * | 2010-11-08 | 2011-04-27 | 福州大学 | Intelligent bus duct simulating, monitoring and analyzing system |
| CN102033178B (en) * | 2010-11-08 | 2012-12-05 | 福州大学 | Intelligent bus duct simulating, monitoring and analyzing system |
| CN102005736B (en) * | 2010-11-24 | 2013-04-10 | 浙江省电力公司 | On-line monitoring method of state of relay protection equipment |
| CN102005736A (en) * | 2010-11-24 | 2011-04-06 | 浙江电力调度通信中心 | On-line monitoring method of state of relay protection equipment |
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| CN102914369B (en) * | 2011-08-05 | 2015-02-04 | 平阳电力有限责任公司 | Online infrared imaging device of transformer substation |
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| CN102685221B (en) * | 2012-04-29 | 2014-12-03 | 华北电力大学（保定） | Distributed storage and parallel mining method for state monitoring data |
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| CN102788645A (en) * | 2012-07-18 | 2012-11-21 | 西安交通大学 | Infrared monitoring system for temperature rise of electric connecting point of electrical equipment and monitoring method |
| CN102914327A (en) * | 2012-09-24 | 2013-02-06 | 长兴县供电局 | Temperature and environmental variable detector and detection system of distribution transformer |
| CN102967373A (en) * | 2012-11-09 | 2013-03-13 | 广东电网公司东莞供电局 | Three-dimensional (3D) infrared temperature monitoring method and system for substation |
| CN103091602A (en) * | 2013-01-11 | 2013-05-08 | 浙江华健电子科技有限公司 | Power line carrier wave online fault detection device |
| CN104730374A (en) * | 2013-12-20 | 2015-06-24 | 福特全球技术公司 | Cable joint integrity detection systems and methods |
| CN104636279A (en) * | 2015-02-10 | 2015-05-20 | 华为技术有限公司 | Address assignment identification method and address assignment identification circuit |
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| US10548036B2 (en) | 2016-02-09 | 2020-01-28 | Spatialbuzz Limited | Fault monitoring by assessing spatial distribution of queries in a utility supply network |
| US11082323B2 (en) | 2016-02-09 | 2021-08-03 | Spatialbuzz Limited | Fault monitoring in a utility supply network |
| CN106131489A (en) * | 2016-07-13 | 2016-11-16 | 杨林 | Multi-source data power plant inspection management system |
| CN106526052A (en) * | 2016-11-01 | 2017-03-22 | 国网山西省电力公司电力科学研究院 | Transformer oil chromatography netted type online monitoring data analysis system |
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| CN110134156A (en) * | 2019-02-28 | 2019-08-16 | 成都派沃特科技股份有限公司 | Utilize the data center apparatus fault detection system of Visual identification technology |
| CN109682481A (en) * | 2019-03-01 | 2019-04-26 | 北京中恒欧嘉节能环保科技有限公司 | A kind of monitoring device and analysis system based on infrared thermal imaging technique |
| CN112787403A (en) * | 2021-01-28 | 2021-05-11 | 图为信息科技(深圳)有限公司 | Power distribution network safety unattended monitoring method and device |
| CN114995560A (en) * | 2022-06-17 | 2022-09-02 | 国网福建省电力有限公司 | GIS dustproof shed environment intelligent monitoring system based on data fusion algorithm |
| CN117406048A (en) * | 2023-12-15 | 2024-01-16 | 国网山西省电力公司太原供电公司 | Transformer discharge fault diagnosis method and device |
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