CN102122844A - Intelligent substation based on sensor, communication network and expert system - Google Patents
Intelligent substation based on sensor, communication network and expert system Download PDFInfo
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Abstract
The invention discloses an intelligent substation based on sensors, a communication network and an expert system. The intelligent substation comprises a substation automation system, a primary equipment condition monitoring system and an intelligent auxiliary control system. The intelligent substation is characterized in that the real-time data of equipment operation are acquired by additionally installing various sensors, the IEC61850 standard is utilized to realize information modeling of the sensor data, a communication network is utilized to build a physical channel for information transmission, and advanced application of the substation automation system and intelligent monitoring and linkage of the primary equipment condition monitoring and auxiliary systems are realized by a background expert system, thus realizing intelligent operation and patrol functions of the substation; the sensors include an all-fiber electronic current transformer, a capacitive voltage divider type electronic voltage transformer, a primary equipment condition monitoring sensor and an internet sensor with an auxiliary system things; and the advanced application of the substation automation system includes sequential control, equipment condition visualization, intelligent alarm, distributed condition estimation, substitution function and the like. Intelligent operation and patrol functions of the substation can be realized.
Description
Technical field
The present invention relates to a kind of novel transformer station, intellectuality operation and inspection function by transducer, communication network and Implementation of Expert System transformer station belong to technical field of power systems.
Background technology
China transformer station has formed comparatively ripe pattern through the development of decades, for the safety and economic operation that ensures electrical network has been brought into play important function.But also exist problems at present, as:
There are problems such as magnetic saturation, ferro resonance, insulating oil blast, sulphur hexafluoride leakage, short/open in conventional instrument transformer;
Shortage needs regularly equipment to be carried out interruption maintenance to comprehensive supervision means of the interior primary equipment of standing (as: main transformer, GIS etc.) operational factor, and the equipment service efficiency reduces;
Shortage relies on artificial regular visit to finish to the real-time monitoring of operational factors such as full station equipment operating temperature, ambient temperature and humidity, water level, environmental parameter, and workload is huge; Equipment start-stops such as air-conditioning, blower fan, water pump need artificial on-the-spot the intervention, can't be according to the start and stop of environmental change intelligence, and energy consumption is bigger, can not satisfy non-attendant operation's requirement;
Production auxiliary systems such as image monitoring, security guard, heating and ventilation, fire alarm, plumbing information each other are isolated, can't improve the senior application that realizes intelligent alarm interlock and convenient operation;
The operations staff is strayed into the interval situation and happens occasionally, and effective alarm brings very big threat to life safety.Personnel's the process of patrolling and examining fails to realize effective supervision, patrols and examines difficult quality control, increases management difficulty;
The digitlization of information interaction, the level of informatization are not high, and back-end data lacks the integrated senior application of expert system, can't provide more auxiliary on-line decision support for operation.
Summary of the invention
Last invention technical problem to be solved provides a kind of intelligent substation, can realize the intellectuality operation and the inspection function of transformer station.
For solving the problems of the technologies described above, the invention provides a kind of intelligent substation based on sensor communication network and expert system, comprise electric substation automation system, primary equipment condition monitoring system and intelligent supplementary controlled system, it is characterized in that: described electric substation automation system, primary equipment condition monitoring system and intelligent supplementary controlled system obtain the real time data of equipment operation respectively by various kinds of sensors, various kinds of sensors communicates by communication network structure and backstage expert system, by the senior application of backstage Implementation of Expert System electric substation automation system, the Intellectualized monitoring of primary equipment status monitoring and auxiliary system and interlock, thereby realize the intellectuality operation and the inspection function of transformer station, described transducer comprises all-fiber electronic current transformer, capacitance partial pressure type electronic type voltage transformer, primary equipment status monitoring transducer, auxiliary system Internet of Things transducer, the senior application of described electric substation automation system comprises: sequential control, equipment state is visual, intelligent alarm, distributed state estimation, replace function etc.
Aforesaid intelligent substation based on sensing network and expert system is characterized in that: electric substation automation system adopts layered distribution type structure, and equipment comprises station level, wall, process layer equipment, and it is interconnected to adopt communication network to realize between the equipment, wherein:
Transducer comprises: all-fiber electronic current transformer, capacitance partial pressure type electronic type voltage transformer;
Communication network comprises: station level network (realize station level, bay device interconnected), process layer network (realizing wall, process layer devices interconnect);
Expert system (being the senior application of electric substation automation system) comprises following functional module:
Sequential control module: send instruction by the gross by backstage in remote monitoring center or the station, judge that according to the status information of equipment situation of change whether per step operation puts in place, automatically performs next instruction after confirming to put in place, until executing all instructions;
Equipment state visualization model: primary equipment running status in standing is carried out real-time display analysis, as required relevant information is delivered to main station system by network simultaneously;
Intelligent alarm module: logic and the inference pattern of setting up transformer station's fault message, fault warning information is classified and filtering signals, running status to transformer station is carried out online in real time analysis and reasoning, reports that automatically transformer station is unusual and proposes the troubleshooting instruction;
Distributed state estimation module: in transformer station, realize distributed state estimation function, can realize data identification and processing, can provide reliable data, alleviate the computational burden of main station system and improve reliability to the control centre;
Replace functional module: system provides to replace the interface is set, the substitution value of device is by the supervisory control system setting, substitution value shows supports the multiple form of expression so that distinguish mutually with the value and the artificial setting value of normal demonstration, when unification is debugged in standing, by replacing function, the actual conditions of realization simulated field are carried out integration test, comprise the test of anti mis-closedown function, remote moving function and the sequential control function of substation safety operation.
Aforesaid intelligent substation based on sensing network and expert system, it is characterized in that: described primary equipment condition monitoring system adopts layered distribution type structure, equipment comprises transducer, status monitoring IED, background host computer, and it is interconnected to adopt communication network to realize between the equipment, wherein:
Transducer (the indoor station of 220kV GIS) comprising: main transformer oil dissolved gas/little water/oily temperature/baroceptor, GIS partial discharge/sulfur hexafluoride gas/circuit breaker operating characteristic transducer, leakage current of an arrester/discharge time transducer.
Communication network comprises: RS485 bus or CAN bus (realizing that transducer and status monitoring IED are interconnected); 100,000,000 and above star-like Ethernet (realize between the status monitoring IED or status monitoring IED and background system interconnected);
Expert system comprises: primary equipment status monitoring backstage analytical system, realize gathering and diagnostic analysis of full station primary equipment status monitoring data.
Aforesaid intelligent substation based on sensing network and expert system, it is characterized in that: described intelligent supplementary controlled system utilizes technology of Internet of things, adopt layered distribution type structure, whole intelligent assistance system is divided into several subsystems, comprising: equipment operation on-line temperature monitoring subsystem, SF6 leakage monitoring subsystem, heating and ventilation subsystem, anti-introns system, intelligent patrol detection authentication subsystem, the fire-fighting fire alarm subsystem of being strayed into.Each subsystem equipment comprises each transducer, field control terminal, the shared background host computer of all subsystems, and it is interconnected to adopt communication network to realize between the equipment, wherein:
Transducer comprises: facility such as transducer such as warm and humid sense, SF6 sensing, water logging, cigarette sense, vibration and camera, infrared imaging, sound and light alarm;
Communication network comprises: RS485 bus or CAN bus, wireless sense network (realizing that transducer and field control terminal are interconnected); 100,000,000 and above star-like Ethernet (realize between the field control terminal or field control terminal and background system interconnected);
Expert system comprises: intelligent assist control expert system, realize the information integration of each subsystem visual with the interlock function.
The beneficial effect that the present invention reached:
Novel intelligent of the present invention transformer station, by installing the real time data that big quantity sensor obtains equipment operation additional, utilize communication network to make up the physical channel of message transmission, by the Intellectualized monitoring and the interlock of backstage and Implementation of Expert System electric substation automation system Premium Features, primary equipment status monitoring and auxiliary system, thereby realize the intellectuality operation and the inspection function of transformer station.Imbody is as follows:
Transducer: electronic type voltage transformer can effectively solve conventional instrument transformer and have intrinsic drawbacks such as magnetic saturation, ferro resonance, insulating oil blast, sulphur hexafluoride leakage, short/open; Primary equipment status monitoring transducer can be realized the on-line monitoring to primary equipment operation parameter; Intelligence supplementary controlled system Internet of Things transducer can be realized the real-time monitoring to warm and humid sense, SF6 sensing, water logging, cigarette sense, vibration environment parameter;
Communication network: adopt fiber optic Ethernet, bus, wireless sense network to replace cable connection, can simplify the complexity of secondary connection greatly, save the total amount and the cost that connect medium, improve the interference free performance of signal transmission, optical fiber can be realized self check, is convenient to malfunction elimination.All secondary singals adopt IEC61850 to realize the standard modeling, can effectively improve the self-described ability of signal and the interoperability between secondary device;
Expert system: the senior application of electric substation automation system can greatly improve operational efficiency, avoids artificial erroneous judgement, display device running status and provide the decision-making suggestion for the operations staff in conjunction with real-time analysis and reasoning in real time; Primary equipment status monitoring backstage analytical system can realize the repair based on condition of component to primary equipment, and in time the discovering device failure symptom replaces fixed inspection, prolongs equipment overhaul cycle, reduces frequency of power cut, improves the service efficiency of equipment; Intelligence assist control expert system can realize the integrated interlock and the intelligent operation management of functions such as image monitoring, security guard, fire alarm, main transformer fire-fighting, heating and ventilation, possesses " intellectual monitoring, intelligent decision, intelligent management, intelligent verification " function.
Description of drawings
Fig. 1 is a transformer station of the present invention overall structure schematic diagram;
Fig. 2 is 220kV line segregation electric substation automation system structural representation in implementing;
Fig. 3 is primary equipment condition monitoring system structural representation in implementing;
Fig. 4 is primary equipment status monitoring sensor configuration schematic diagram in implementing;
Fig. 5 is intelligent supplementary controlled system structural representation in implementing;
Electric substation automation system station level schematic network structure during Fig. 6 implements;
Electric substation automation system process layer network structural representation during Fig. 7 implements;
Primary equipment condition monitoring system equipment connection diagram during Fig. 8 implements.
Embodiment
Intelligent substation structural representation involved in the present invention is as shown in Figure 1:
General structure
Transformer station end mainly is made up of automated system, primary equipment condition monitoring system and intelligent supplementary controlled system, and the backstage utilizes advanced functions such as advanced applied software and Implementation of Expert System automated system Premium Features, primary equipment status monitoring, auxiliary system intelligent linkage.
Obtain the real time data of equipment operation by installing various kinds of sensors additional, described transducer comprises all-fiber electronic current transformer, capacitance partial pressure type electronic type voltage transformer, primary equipment status monitoring transducer, auxiliary system Internet of Things transducer.
It is interconnected to utilize communication network (comprising: 100,000,000 reach above star-like Ethernet, bus, wireless sense network etc.) to realize in the transformer station between primary equipment and secondary device, the secondary device, and ethernet communication protocol adopts the IEC61850 standard.
Transformer station's background host computer possesses the expert system function module, can realize the Intellectualized monitoring and the interlock of the senior application of electric substation automation system, primary equipment status monitoring and auxiliary system.
Electric substation automation system
Be made up of station level, wall, process layer equipment, and realize connecting (comprising station level network, process layer network) with layering, distribution, open network system, overall structure is " three layer of two net " structure.Compare with conventional substation, aspect transducer, secondary connection, background host computer and software, exist than big-difference, as shown in Figure 2.
Transducer: the all-fiber electronic current transformer that utilization has advanced measuring principle (match lattice Nike effect) replaces conventional electromagnetic type current sensor, Li Yong capacitance partial pressure type electronic type voltage transformer replaces conventional electromagnetic type voltage transformer, and the digital message of IEC61850-9-2 standard modeling is adopted in the output of merge cells current/voltage.
Secondary connection: utilize between fiber optic Ethernet realization primary equipment and secondary device, the secondary device interconnected, the unified IEC61850 standard that adopts of communication protocol, replace control cable with optical fiber, replace analog signal with digital signal, carry under the prerequisite that significantly improves signal transmission interference free performance and greatly simplified secondary connection.Background host computer and software: the main frame operator station of holding concurrently realizes supervision, control, alarm and the information interaction function of full station equipment, finishes correlation functions such as DAM control (SCADA), operation locking and synchronized phasor collection, protection information management automatically.Demand according to operation, various automated informations in the integrated application station, daemon software can be realized senior application such as sequential control, primary equipment status visualization, intelligent alarm, distributed state estimation, replacement function, realize the intellectuality operation of transformer station, improve unattended reliability of transformer station and efficient, and provide better aid decision support for distant place operations staff.
The primary equipment condition monitoring system
Adopt layered distribution type structure, constitute by transducer, status monitoring IED, background system, as Fig. 3 institute not:
Transducer: primary equipment status monitoring transducer should be selected to install according to operation demand and equipment importance, the transducer that the indoor station owner of 220kV GIS will be installed additional comprises: main transformer oil dissolved gas/little water/oily temperature/baroceptor, GIS partial discharge/sulfur hexafluoride gas/circuit breaker operating characteristic transducer, leakage current of an arrester/discharge time transducer, as shown in Figure 4:
Communication network: adopt RS485 bus or CAN bus mode transportation simulator amount data between transducer and status monitoring IED; Adopt DL/T 860 standard traffics between the status monitoring IED or between status monitoring IED and background system, communication network adopts 100M and the star-like Ethernet of above high speed.
Background system: the shared unified background system of standing entirely, the various kinds of equipment status monitoring is unified backstage analysis software, interface type and transmission protocol, realize full station equipment status monitoring data transmission, gather and diagnostic analysis.
The intelligence supplementary controlled system
Utilize technology of Internet of things,, make up sensing net measurement and control network by perception to external world, as shown in Figure 5:
Equipment operation on-line temperature monitoring subsystem: mainly form by administrative center's (main control system), transfer of data base station and radio temperature sensor and thermal infrared imager.
SF6 leakage monitoring subsystem: form by SF6 detection node, controller, collaborative perception monitor supervision platform.
Plumbing on-line monitoring subsystem: detection node adopts wireless water sensor and wired level sensor, monitors same wireless platform with device temperature sensing net, need not additionally to dispose the base station.
The heating and ventilation subsystem: detection node adopts the wireless humiture transducer, monitors same wireless platform with device temperature sensing net, need not additionally to dispose the base station.
The anti-introns system that is strayed into: adopt the imageing sensor of image monitoring system, discern by intelligent image and realize being strayed into alarm at interval.Operation principle: manually locate maintenance interval according to work ticket, automatically eject the video image at this interval, manually assist and on above-mentioned image frame, generate the virtual logical safe fence, automatically compare the position difference of physics fence and logic fence, alarm automatically exceeds standard, automatically the outer personnel activity of identification fence, and produce alarm signal automatically and be delivered to the fence alarm indicator by wireless network, alert erect-position mistake.
Intelligent patrol detection authentication subsystem: adopt the imageing sensor of image monitoring system, realize inspection quality certification by the intelligent image identification software.Operation principle: default route and the monitoring time node of patrolling and examining, default key equipment image identification pad pasting (key is patrolled and examined a little) and image identification clothes (patrolling and examining work clothes), work clothes is patrolled and examined in intelligent image identification, automatically personnel (maximum 16 people) are patrolled and examined in identification, automatically record enters and leaves the visual field time, automatically generate image identification and literal form, automatically differentiate the personnel that patrol and examine and crucial distance of patrolling and examining a little, patrol and examine dot image sign and literal form near generating key automatically, according to polling path, time and key are patrolled and examined some monitoring time relation and are differentiated automatically and patrol and examine quality, and the low quality incident of patrolling and examining is generated video stream file and the literal form is pushed to administrative staff's desktop top layer automatically.
Image monitoring and security guard subsystem: form by parts such as high definition camera, shock sensor, fences.Can detect invasion and illegal invasion behavior on ground and the enclosure wall, intrusion target is carried out the classification of personnel, animal, vehicle, intelligent video identification prevents to cross gate, enclosure wall, deploy troops on garrison duty as required on time and withdraw a garrison function, on-the-spot sound and light of alarm, intelligent video identification and the fusion of other subsystem, the function that links comprise intelligent patrol detection authentication subsystem, SF6 leak detection subsystem, fire-fighting subsystem, plumbing subsystem etc.
Fire-fighting fire alarm subsystem: form by the smoke alarm network, fire alarm signal can be provided, the smart image sensors that links automatically, and by the interlocking logical locking exhaust system of setting in advance.The novel transformer station of this kind is by can realize standing entirely the visual and intelligent control of equipment state from the main system to the auxiliary system of sensing network and backstage expert system, the intellectuality operation that realizes transformer station with patrol and examine.
Concrete effect embodies as follows:
(1) electronic mutual inductor
Adopt advanced measuring principle, have the advantage of safe and reliable, economical and efficient, clean environment firendly, transparent opening, can effectively solve conventional instrument transformer and have intrinsic drawbacks such as magnetic saturation, ferro resonance, insulating oil blast, sulphur hexafluoride leakage, short/open;
Safe and reliable:
Insulation property improve;
No CT second open circuit, PT second short circuit;
Substitute oil and SF6, Environmental Safety with insulation fat;
No magnetic saturation, frequency response range is wide, transient characterisitics good, is not subjected to such environmental effects;
Digital signal has strengthened anti-EMI performance by Optical Fiber Transmission, and data reliability improves greatly.
Economical and efficient:
Volume and weight is much smaller than conventional instrument transformer, easily and other primary equipments integrated, reduce investment outlay;
Use optical cable cable trough, cable floor are greatly simplified, the cable consumption reduces, and saves and takes up an area of;
Solid insulation need not inspection and presses leak detection, and is non-maintaining in the running.
Clean environment firendly:
It is pollution-free that insulation fat does not have leakage;
The a large amount of copper materials of optical cable replacement cables saving
Transparent opening:
Has self-checking function; Plug and play; The debugging acid human-computer interaction.
(2) communication network
Adopt fiber optic Ethernet to replace cable connection, can simplify the complexity of secondary connection greatly, save the total amount and the cost that connect medium, improve the interference free performance of signal transmission, optical fiber can be realized self check, is convenient to malfunction elimination.All secondary singals adopt IEC61850 to realize the standard modeling, can effectively improve the self-described ability of signal and the interoperability between secondary device.
(3) automated system Premium Features
Sequential control can realize the one-touch automatic operation of equipment, has greatly shortened the time of artificial single-step operation, can effectively avoid the possibility of manual operation erroneous judgement, has improved operational efficiency.
The visual realization of equipment state carried out real-time display analysis to primary equipment running status in standing, for the operations staff provides better aid decision support.
The categorical filtering to information of intelligent alarm can effectively alleviate operations staff's work load, guarantees important incident is preferentially handled timely.
Distributed state estimation can realize data identification and processing in transformer station, alleviate the computational burden of main station system and improve reliability.
Replace function virtual when manually putting number and can be newly-built, reorganization and expansion the test of right anti mis-closedown function, remote moving function and sequential control function bring great convenience.
(4) primary equipment condition monitoring system
By on-line monitoring to primary equipment operation parameter, can realize timely discovering device failure symptom, replace fixed inspection with repair based on condition of component, prolong equipment overhaul cycle, reduce frequency of power cut, improve the service efficiency of equipment.
(5) intelligent assistance system
On sensing net monitoring platform basis, set up intellectual monitoring and supplementary controlled system, realize the integrated of functions such as image monitoring, security guard, fire alarm, main transformer fire-fighting, heating and ventilation, the operational management of round Realization intelligent substation possesses " intellectual monitoring, intelligent decision, intelligent management, intelligent verification " function.
Equipment operation on-line temperature monitoring subsystem: can realize the operating temperature of equipment such as wall bushing, capacitor body measured in real time and send, the huge workload of having avoided the regularly artificial thermometric of conventional station operations staff to bring.
SF6 leakage monitoring subsystem: accurate detection, leak source location, the intelligent image that can realize the SF6 gas leakage link, start functions such as blower ventilation ventilation.
Plumbing on-line monitoring subsystem: realize the real-time detection to the ponding situation, the Long-distance Control water pump operation realizes that ponding discharges automatically, and high water level surmounts directly electric automatic draining, and extra high water level protection is provided.
Heating and ventilation subsystem: realize remote inquiry humiture detection node operating state, the Long-distance Control operation of air conditioner according to the humiture situation of indoor and outdoor, is controlled the operational mode of ventilating system and air-conditioning system automatically, satisfy the Temperature and Humidity Control requirement, reduce the energy consumption that heating and ventilation brings simultaneously.
The anti-introns system that is strayed into: realize the outer personnel activity of identification fence automatically, and produce alarm signal automatically and be delivered to the fence alarm indicator that alert erect-position mistake has improved operating personnel's work life safety by wireless network.
Intelligent patrol detection authentication subsystem: realize that patrolling and examining an automatic differentiation of monitoring time relation according to polling path, time and key patrols and examines quality, for administrative staff provide quantifiable management method, reduces management difficulty.
Image monitoring and security guard subsystem: realize the panorama of full station equipment, building is monitored, take precautions against the illegal invasion behavior.
Fire-fighting fire alarm subsystem: detect the fire incident situation of transformer station automatically, the alarm of realization accident pushes away picture, linked system ventilation equipment.
Below be that example describes with the specific embodiments of river rising in Ningxia and flowing into central Shaanxi, 220kV west transformer station pilot project:
The Xi Jing change is made up of automated system, primary equipment condition monitoring system and intelligent supplementary controlled system in the station, a large amount of new technologies, new equipment, new material are adopted in full station, can finish advanced functions such as one-touch sequential control, primary equipment on-line monitoring, auxiliary system intelligent linkage and the senior application of electric substation automation system automatically, from main system to the intellectuality of auxiliary system round Realization.Become the indoor station design of the new city model of advanced person, reliable, integrated, low-carbon (LC), environmental protection.
(1) electronic mutual inductor
Electronic current mutual inductor: 220kV, 110kV, main transformer three sides adopt the full fiber type current transformer, all electronic current mutual inductors all adopt the double A/D sampling, wherein 220kV, main transformer three sides adopt " 4 sensing rings+4A/D " pattern, and 110kV adopts " 2 sensing rings+2A/D " pattern.Consider the convenience of maintenance, operation and the mutual harmful effect between minimizing instrument transformer and GIS, improve reliability, all GIS full fiber type current transformers all adopt air chamber to install outward, wherein 220kV GIS is that three-phase divides body structure, adopt the outer independent case body of air chamber to install, 110kV GIS is the three-phase coenosarc structure, adopts ring flange to install, instrument transformer is finally determined by establishing relevant producer with each of joint conference at the mounting means of GIS, is adopted integrated design, integrated installation.
10kV main transformer inlet wire full fiber type current transformer adopts mounting means in the switch cubicle:
Electronic type voltage transformer: the 220kV that stands entirely, 110kV voltage transformer all adopt electronic type voltage transformer.All electronic type voltage transformers all adopt the double A/D sampling.Electronic type voltage transformer adopts independent tank body to install, and instrument transformer is finally determined by establishing relevant producer with each of joint conference at the mounting means of GIS, adopted integrated design, integrated installation.
(2) secondary connection and communication network
Full station adopts the IEC61850 standard to realize the digitlization of secondary device information interaction, standardization, utilize optical fiber to realize that secondary device interconnects, greatly simplify secondary connection, improve message transmission reliability and device interoperability, saved control cable (control cable more than 60% is reduced at conventional station) in a large number.
The station level network
Station level network using dual star topology structure, redundant network adopt two net duplex mode operations, realize that network seamless switches.Each cell is provided with independently station level switch, and the secondary device chamber is provided with the station level center switch, as shown in Figure 6.
The process layer network
110kV process layer network is by two net configurations, and sampled value, GOOSE, IEEE 1588 unifications of three nets, common network transmit, and realize digitlization, networking, sharedization of transfer of data.220kV process layer network adopts the independently single net of two cover physics, and sampled value adopts the mode of directly adopting, and straight jumping+net jumping mode is adopted in tripping operation, guarantees the system works reliability.10kV is not provided with the self-contained process layer network, as shown in Figure 7.
(3) automated system background host computer and Premium Features software
The two cover configurations of automated system background host computer, Premium Features software have realized that sequential control, equipment state are visual, intelligent alarm, distributed state estimation and replace function.
(4) primary equipment status monitoring
Realization is to the status monitoring of stand interior main transformer, GIS, lightning arrester, the unified status monitoring background system in full station, and realize information interaction with the automation backstage, system architecture as shown in Figure 8:
Monitoring range and parameter
Transducer, IED, the configuration of screen cabinet
The backstage configuration: 1 status monitoring background host computer is established at full station, and 1 in group cabinet is provided with 1 display terminal on the workbench.
(5) intelligent supplementary controlled system
" Internet of Things " technology of utilization is set up the sensing measurement and control network, realizes the integrated application and the interlock control of auxiliary systems such as image monitoring, security guard, fire alarm, main transformer fire-fighting, heating and ventilation, plumbing, SF6 leakage monitoring, operating temperature monitoring.About 330 transducers such as warm and humid sense, SF6 sensing, water logging, cigarette sense, vibration have been arranged at full station, and cooperate facilities such as camera, infrared imaging, sound and light alarm, realization is to the perception of running environment and operational outfit, set up intellectual monitoring and supplementary controlled system on this basis, and adopt DL/T 860 communication protocols to realize the information mutual communication and the coordination linkage of each accessory production system.
Below disclose the present invention with preferred embodiment, so it is not in order to restriction the present invention, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within protection scope of the present invention.
Claims (5)
1. intelligent substation based on sensor communication network and expert system, comprise electric substation automation system, primary equipment condition monitoring system and intelligent supplementary controlled system, it is characterized in that: described electric substation automation system, primary equipment condition monitoring system and intelligent supplementary controlled system obtain the real time data of equipment operation respectively by various kinds of sensors, various kinds of sensors communicates by communication network structure and backstage expert system, by the senior application of backstage Implementation of Expert System electric substation automation system, the Intellectualized monitoring of primary equipment status monitoring and auxiliary system and interlock, thus realize the intellectuality operation and the inspection function of transformer station.
2. the intelligent substation based on sensing network and expert system according to claim 1, it is characterized in that: electric substation automation system adopts layered distribution type structure, equipment comprises station level, wall, process layer equipment, and it is interconnected to adopt communication network to realize between the equipment, wherein:
Transducer comprises: all-fiber electronic current transformer, capacitance partial pressure type electronic type voltage transformer;
Communication network comprises: realize the station level network that station level, bay device are interconnected and realize the process layer network of wall, process layer devices interconnect;
Expert system comprises following functional module:
Sequential control module: send instruction by the gross by backstage in remote monitoring center or the station, judge that according to the status information of equipment situation of change whether per step operation puts in place, automatically performs next instruction after confirming to put in place, until executing all instructions;
Equipment state visualization model: primary equipment running status in standing is carried out real-time display analysis, as required relevant information is delivered to main station system by network simultaneously;
Intelligent alarm module: logic and the inference pattern of setting up transformer station's fault message, fault warning information is classified and filtering signals, running status to transformer station is carried out online in real time analysis and reasoning, reports that automatically transformer station is unusual and proposes the troubleshooting instruction;
Distributed state estimation module: in transformer station, realize distributed state estimation function, realize data identification and processing, provide reliable data, alleviate the computational burden of main station system and improve reliability to the control centre;
Replace functional module: the actual conditions that realize simulated field are carried out integration test, comprise the test of anti mis-closedown function, remote moving function and the sequential control function of substation safety operation.
3. the intelligent substation based on sensing network and expert system according to claim 1, it is characterized in that: described primary equipment condition monitoring system adopts layered distribution type structure, equipment comprises transducer, status monitoring IED, background host computer, it is interconnected to adopt communication network to realize between the equipment, wherein:
Transducer comprises: main transformer oil dissolved gas/little water/oily temperature/baroceptor, GIS partial discharge/sulfur hexafluoride gas/circuit breaker operating characteristic transducer, leakage current of an arrester/discharge time transducer;
Communication network comprises: realize transducer and interconnected RS485 bus or the CAN bus of status monitoring IED; Realize between the status monitoring IED or status monitoring IED and 100,000,000 interconnected and above star-like Ethernet of background system;
Expert system comprises: primary equipment status monitoring backstage analytical system, realize gathering and diagnostic analysis of full station primary equipment status monitoring data.
4. the intelligent substation based on sensing network and expert system according to claim 1, it is characterized in that: described intelligent supplementary controlled system utilizes technology of Internet of things, adopt layered distribution type structure, whole intelligent assistance system is divided into several subsystems, comprising: equipment operation on-line temperature monitoring subsystem, SF6 leakage monitoring subsystem, heating and ventilation subsystem, anti-introns system, intelligent patrol detection authentication subsystem, the fire-fighting fire alarm subsystem of being strayed into.
5. the intelligent substation based on sensing network and expert system according to claim 4, it is characterized in that: each subsystem equipment comprises each transducer, field control terminal, the shared background host computer of all subsystems, it is interconnected to adopt communication network to realize between the equipment, wherein:
Transducer comprises: facility such as transducer such as warm and humid sense, SF6 sensing, water logging, cigarette sense, vibration and camera, infrared imaging, sound and light alarm;
Communication network comprises: realize transducer and interconnected RS485 bus, CAN bus or the wireless sense network of field control terminal; Realize between the field control terminal or field control terminal and 100,000,000 interconnected and above star-like Ethernet of background system;
Expert system comprises: intelligent assist control expert system, realize the information integration of each subsystem visual with the interlock function.
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| CN2011100489870A CN102122844B (en) | 2011-03-01 | 2011-03-01 | Communication network based on sensor and smart substation of expert system |
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Free format text: CORRECT: INVENTOR; FROM: SU LIN SUN CHUNJUN LOU YUE ZHU DONGSHENG QIN HUA WU SUOPING WANG ZUOMIN LU DONGHAI WU HUAIJUN WANG XIAOHU TO: SU LIN SUN CHUNJUN CHE YONG WANG XIUJIANG LOU YUE ZHU DONGSHENG DAN QIANG QIN HUA WU SUOPING WANG ZUOMIN LI JUAN PENG SHENGJIANG LU DONGHAI WU HUAIJUN WANG XIAOHU KANG YUHAN |
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Effective date of registration: 20150202 Address after: 210009 Gulou District, Jiangsu, Nanjing new model road, No. 5 Patentee after: Jiangsu Electric Power Designing Institute Patentee after: Guo Wang Xinjiang power company Patentee after: ECONOMIC TECHNOLOGY RESEARCH INSTITUTE, STATE GRID XINJIANG ELECTRIC POWER CO., LTD. Address before: 210009 Gulou District, Jiangsu, Nanjing new model road, No. 5 Patentee before: Jiangsu Electric Power Designing Institute |
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Owner name: CHINA ENERGY ENGINEERING GROUP JIANGSU ELECTRIC PO Free format text: FORMER NAME: JIANGSU ELECTRIC POWER DESIGNING INST. |
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Address after: 210009 Gulou District, Jiangsu, Nanjing new model road, No. 5 Patentee after: Chinese energy construction group Jiangsu Prov. Power Design Inst Co., Ltd Patentee after: Guo Wang Xinjiang power company Patentee after: ECONOMIC TECHNOLOGY RESEARCH INSTITUTE, STATE GRID XINJIANG ELECTRIC POWER CO., LTD. Address before: 210009 Gulou District, Jiangsu, Nanjing new model road, No. 5 Patentee before: Jiangsu Electric Power Designing Institute Patentee before: Guo Wang Xinjiang power company Patentee before: ECONOMIC TECHNOLOGY RESEARCH INSTITUTE, STATE GRID XINJIANG ELECTRIC POWER CO., LTD. |
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