CN104967220A - Transformer substation monitoring system - Google Patents

Transformer substation monitoring system Download PDF

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Publication number
CN104967220A
CN104967220A CN201510416476.8A CN201510416476A CN104967220A CN 104967220 A CN104967220 A CN 104967220A CN 201510416476 A CN201510416476 A CN 201510416476A CN 104967220 A CN104967220 A CN 104967220A
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China
Prior art keywords
control
substation
electric
monitoring
spot
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CN201510416476.8A
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Chinese (zh)
Inventor
高东学
侯志超
狄京元
吴国庆
林森
赵校贤
田果
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LUOHE POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER Co Ltd
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LUOHE POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER Co Ltd
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Priority to CN201510416476.8A priority Critical patent/CN104967220A/en
Publication of CN104967220A publication Critical patent/CN104967220A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/7838
    • Y02E60/7853
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16Electric power substations
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S40/00Systems 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
    • Y04S40/12Systems 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
    • Y04S40/124Systems 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 wired telecommunication networks or data transmission busses
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S40/00Systems 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
    • Y04S40/12Systems 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
    • Y04S40/126Systems 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

Through dividing each control layer of a transformer substation monitoring system, a function of each layer is clear. A local control layer locally collects and processes data, monitors abnormity and adopts a corresponding sending mode according to a related information type. Simultaneously, a communication apparatus is used to communicate between the local control layer and a station control layer. Data of the local control layer is sent to the station control layer and is analyzed, processed and displayed. Local rapid emergency fault processing is realized, monitoring analysis can be remotely performed, a further decision is made and a guarantee is provided for normal operation of a transformer substation.

Description

A kind of monitoring system of electric substation
Technical field
The present invention relates to a kind of technical field of Automated condtrol of electric power network system, specifically, is a kind of monitoring system of electric substation.
Background technology
The development of Substation Automation System and the extensive use of Microcomputer Protection drastically increase the gentle managerial skills of Automated water of electrical network; but the requirement of electric substation automation system to the function of backstage main website also increases day by day, and the weak point of integrated system comes out more and more significantly.Integrated system concentrates on a main frame by multi-functional greatly to database, data processing, man-machine conversation etc., easily causes computer overload, needs machine with better function.The lifting of computer hardware function along be the sharp increase of price, this demand can cause whole supervisory control system system cost high.Meanwhile, several functions module is loaded on a main frame, and module close-coupled, influences each other, and causes systemic-function to be difficult to again expand.Along with access device growing number is many, the corresponding continuous increase of amount of information, integrated system is difficult to meet the requirement that capacity constantly expands.
Summary of the invention
Based on the deficiencies in the prior art, the present invention proposes a kind of monitoring system of electric substation, it adopts hierarchy, is divided into Substation level and key-course on the spot.
Substation level is the center of monitoring of equipment, control, management, pass through Optical Fiber Transmission, accept the information such as the switching value of collection in worksite, analog quantity and electricity, and to on-the-spot issuing control order, carry out distant place data communication by telemechanical communication station and dispatching communication center.
Substation level comprise two fiber optic Ethernet, two monitoring host computers, man-machine work station, the remote action data process communicated with control centre and communicator, GPS couple time and clock system, two monitoring host computers work with active/standby mode simultaneously.From the data that harvester send, two main frames receive simultaneously, simultaneously and with same software process; From the output command that operator sends, two main frames receive simultaneously and perform, but only have main frame can send control output command.Remote action data process and communicator have primary channel automatic switching function GPS timing device, comprise antenna, feeder line and pair time required communication cable.GPS receives satellite standard time signal, during to supervisory control system Substation level equipment pair.Supervisory control system should be able to shield the gps signal of mistake, can detect, warning function to GPS fault, when satellite step-out, independently sends warning message to computer supervisory control system.
When GPS timing device to be carried out pair telemechanical communication station and intelligent interface device by serial communication, utilize pulse per second (PPS) to export and clock synchronous is carried out to measurement and control unit.
Key-course is by measurement and control unit I/O device with control master unit on the spot and form on the spot, measurement and control unit and control master unit communication on the spot and adopt optical fiber Star network, and on the spot between control master unit data for subsequent use each other.
The corresponding measurement and control unit of each breaker unit in key-course on the spot, a main transformer arranges three measurement and control units, mainly complete the measurement of each equipment state of transformer station, control, supervision, the running status of uploading device, accept background monitoring system, instruction that dispatching terminal, the center of patrolling and examining are assigned, there is circuit breaker asynchronous switch-on function, relate to associating locking and need completing at key-course on the spot of switch and disconnecting link.
Measurement and control unit should be provided in station level equipment and stop transport or other manual operations in emergency circumstances, and mutually can switch with the computer operation under normal condition.
Key-course gathers various real time information on the spot, the operation of monitor and forecast primary equipment, the operation requirements of automatic synchronization local operation and substation level, ensure equipment safety operation, and there is on the spot/distant place diverter switch, when station level and network failure, still can the monitor and forecast function of complete independently key-course on the spot.
The control unit of supervisory control system is made up of six modules, be respectively master board, output switch parameter tablet, analog acquisition plate, device motherboard, LCD display output module and input through keyboard module, whole device have employed board plug type structure, the corresponding plate of each module, strong and weak electricity signal circuit is physically being separated simultaneously, be conducive to the raising of the interference free performance of device.The realization of analog acquisition plate carries out conversion to the voltage of secondary side on the electric current of the Current Transformer Secondary side on primary system and voltage transformer to be made it within AD sample range.A/D chip can only sampled voltage in addition. on analog acquisition plate, the magnitude of current must be converted into voltage.On-off signal output board realizes the isolation of switching value by inner photoelectric isolating device and relay block.LCD MODULE and input through keyboard module all belong to man-machine interface part, an output block as man-machine interface, an input block as man-machine interface.
Device master control borad is the core of whole device, controls the operation of whole system, mainly comprises: analog quantity filter circuit, analog quantity MUX, AD conversion devices, program storage, data storage, communication interface device, microprocessor etc.
Supervisory control system presses distributed type open system configuration, it is through the collection of I/O cell data that system data flows to, concentrated by control unit on the spot, pass to main frame and remote action data process and communicator (CCU) respectively through station level net, communication media all adopts two optical fiber.
This system adopts layered distribution type structure simultaneously; combine conventional control instrument panel, protective relaying device screen, imitation screen, transmitter screen, telemechanical apparatus screen, central signal system and the feature such as protection, the full Microcomputer of control, achieve measurement, control, self-inspection, protection information autobiography, electricity collection, voltage & var control (VQC), intelligent DC monitors, intelligent fire warning device monitors, the electric automation function such as five-defence block, teletransmission.
Supervisory control system has Real time Data Acquisition function, graphical display function, anti mis-closedown function and control operation function.
Data acquisition system analog quantity (voltage, electric current, active reactive power, temperature, pressure, flow etc.), quantity of state (guard signal such as switch, disconnecting link, accident resultant signal, load tap changer position, protection act), digital quantity (frequency, electric flux etc.), pulsed quantity etc.
Analog input adopts AC sampling mode, and leaves transmitter input interface (also can adopt the analog input module that direct current inputs).The voltage transformer magnitude of voltage summation current transformer current value be sampled enters I/0 unit after electrical isolation.The preliminary treatment of I/0 unit to sampled data comprises: circuit breaking detects, anti-interference, digital filtering, error compensation, reasonability judge and Standard graduation conversion and gradient calculation etc.The real time datas such as active power, reactive power, power factor and electricity are calculated according to the magnitude of voltage of sampling and current value.
The collection of digital quantity adopts fast checking method.Position signalling and the electric degree pulsed quantity of the position signalling of circuit breaker and isolation switch, relaying protection actuating signal, accident/fault-signal, manual/auto way selection all input as digital quantity.Digital quantity enters I/0 unit after Phototube Coupling, then enters database through anti-contact bounce process, hardware-software filtering, compensation fiducial time and distinguishing validity etc.
Graphical display function, can show electric hookup, electrical arrangement geographical position figure, system global structure figure, variable curve, tidal current chart, list of thing, chance event control board, form, waveform, analysis chart, information window, 3 D stereo rod figure etc.There is the function such as bus variable color, real-time curve, voltage rod figure, meritorious distributional analysis, trend Dynamic Announce, alarm appliance flicker, alarming determining variable color, the variable color of pel condition, online help.
The anti-misoperation locking of each electric unit completes by with regard to region measurement and control unit, and the anti-misoperation locking of same electric pressure is completed by the master unit intercomed mutually, and in standing, interlocking is completed by Substation level.
Control operation function comprises that remote dispatching controls, the operation one to one of corresponding electric unit on the keyboard operation of Substation control room and substation relay protection room I/O unit.The priority controlled is followed successively by the man-to-man operation in substation relay protection room, the keyboard operation of Substation control room, remote dispatching control.In order to prevent misoperation, various control mode need meet electrical interlock condition, and order output comprises: single contact order, two point order, pulse command, serial command and become group command.
In monitoring system of electric substation from system to transmission request message, the transmission kind for information is divided into:
(1) real time information: measurements and calculations system around in various analog quantity and digital quantity, comprise voltage, electric current, power, electric degree etc., this type of information requires system Real-Time Monitoring, the running status of reflection system.
(2) fault message: when system jam, the fault type reflected and accordingly fault actions value, this type of information needs to transmit with the very first time, and the system that ensures is after fault occurs, and energy is accident settlement rapidly, reduces loss.
(3) state information: the information of reflection field equipment state, as switching value etc., this type of information only needs to transmit when the quantity of state of information changes.
(4) control and parameter information: to the information required for equipment operating in system, as relay action signal, point information etc., transmit when this type of information is manual operation.
By the division of each key-course to monitoring system of electric substation, thus specify that the function of each layer, key-course in-site collecting deal with data on the spot, monitor abnormal, and take corresponding send mode according to relevant information type, adopt communicator communicating between key-course with station level on the spot simultaneously, station level is sent to carry out analyzing and processing and show the data of key-course on the spot, thus both achieved fast processing emergency on the spot, long-rangely can carry out monitoring analysis again, and make further decision-making, for the normal operation of transformer station provides guarantee.
Accompanying drawing explanation
Fig. 1 is the structural framing figure of monitoring system of electric substation of the present invention.
Embodiment
As shown in Figure 1, a kind of monitoring system of electric substation, it adopts hierarchy, is divided into Substation level and key-course on the spot.
Substation level is the center of monitoring of equipment, control, management, pass through Optical Fiber Transmission, accept the information such as the switching value of collection in worksite, analog quantity and electricity, and to on-the-spot issuing control order, carry out distant place data communication by telemechanical communication station and dispatching communication center.
Substation level comprise two fiber optic Ethernet, two monitoring host computers, man-machine work station, the remote action data process communicated with control centre and communicator, GPS couple time and clock system, two monitoring host computers work with active/standby mode simultaneously.From the data that harvester send, two main frames receive simultaneously, simultaneously and with same software process; From the output command that operator sends, two main frames receive simultaneously and perform, but only have main frame can send control output command.Remote action data process and communicator have primary channel automatic switching function GPS timing device, comprise antenna, feeder line and pair time required communication cable.GPS receives satellite standard time signal, during to supervisory control system Substation level equipment pair.Supervisory control system should be able to shield the gps signal of mistake, can detect, warning function to GPS fault, when satellite step-out, independently sends warning message to computer supervisory control system.
When GPS timing device to be carried out pair telemechanical communication station and intelligent interface device by serial communication, utilize pulse per second (PPS) to export and clock synchronous is carried out to measurement and control unit.
Key-course is by measurement and control unit I/O device with control master unit on the spot and form on the spot, measurement and control unit and control master unit communication on the spot and adopt optical fiber Star network, and on the spot between control master unit data for subsequent use each other.
The corresponding measurement and control unit of each breaker unit in key-course on the spot, a main transformer arranges three measurement and control units, mainly complete the measurement of each equipment state of transformer station, control, supervision, the running status of uploading device, accept background monitoring system, instruction that dispatching terminal, the center of patrolling and examining are assigned, there is circuit breaker asynchronous switch-on function, relate to associating locking and need completing at key-course on the spot of switch and disconnecting link.
Measurement and control unit should be provided in station level equipment and stop transport or other manual operations in emergency circumstances, and mutually can switch with the computer operation under normal condition.
Key-course gathers various real time information on the spot, the operation of monitor and forecast primary equipment, the operation requirements of automatic synchronization local operation and substation level, ensure equipment safety operation, and there is on the spot/distant place diverter switch, when station level and network failure, still can the monitor and forecast function of complete independently key-course on the spot.
The control unit of supervisory control system is made up of six modules, be respectively master board, output switch parameter tablet, analog acquisition plate, device motherboard, LCD display output module and input through keyboard module, whole device have employed board plug type structure, the corresponding plate of each module, strong and weak electricity signal circuit is physically being separated simultaneously, be conducive to the raising of the interference free performance of device.The realization of analog acquisition plate carries out conversion to the voltage of secondary side on the electric current of the Current Transformer Secondary side on primary system and voltage transformer to be made it within AD sample range.A/D chip can only sampled voltage in addition. on analog acquisition plate, the magnitude of current must be converted into voltage.On-off signal output board realizes the isolation of switching value by inner photoelectric isolating device and relay block.LCD MODULE and input through keyboard module all belong to man-machine interface part, an output block as man-machine interface, an input block as man-machine interface.
Device master control borad is the core of whole device, controls the operation of whole system, mainly comprises: analog quantity filter circuit, analog quantity MUX, AD conversion devices, program storage, data storage, communication interface device, microprocessor etc.
Supervisory control system presses distributed type open system configuration, it is through the collection of I/O cell data that system data flows to, concentrated by control unit on the spot, pass to main frame and remote action data process and communicator (CCU) respectively through station level net, communication media all adopts two optical fiber.
This system adopts layered distribution type structure simultaneously; combine conventional control instrument panel, protective relaying device screen, imitation screen, transmitter screen, telemechanical apparatus screen, central signal system and the feature such as protection, the full Microcomputer of control, achieve measurement, control, self-inspection, protection information autobiography, electricity collection, voltage & var control (VQC), intelligent DC monitors, intelligent fire warning device monitors, the electric automation function such as five-defence block, teletransmission.
Supervisory control system has Real time Data Acquisition function, graphical display function, anti mis-closedown function and control operation function.
Data acquisition system analog quantity (voltage, electric current, active reactive power, temperature, pressure, flow etc.), quantity of state (guard signal such as switch, disconnecting link, accident resultant signal, load tap changer position, protection act), digital quantity (frequency, electric flux etc.), pulsed quantity etc.
Analog input adopts AC sampling mode, and leaves transmitter input interface (also can adopt the analog input module that direct current inputs).The voltage transformer magnitude of voltage summation current transformer current value be sampled enters I/0 unit after electrical isolation.The preliminary treatment of I/0 unit to sampled data comprises: circuit breaking detects, anti-interference, digital filtering, error compensation, reasonability judge and Standard graduation conversion and gradient calculation etc.The real time datas such as active power, reactive power, power factor and electricity are calculated according to the magnitude of voltage of sampling and current value.
The collection of digital quantity adopts fast checking method.Position signalling and the electric degree pulsed quantity of the position signalling of circuit breaker and isolation switch, relaying protection actuating signal, accident/fault-signal, manual/auto way selection all input as digital quantity.Digital quantity enters I/0 unit after Phototube Coupling, then enters database through anti-contact bounce process, hardware-software filtering, compensation fiducial time and distinguishing validity etc.
Graphical display function, can show electric hookup, electrical arrangement geographical position figure, system global structure figure, variable curve, tidal current chart, list of thing, chance event control board, form, waveform, analysis chart, information window, 3 D stereo rod figure etc.There is the function such as bus variable color, real-time curve, voltage rod figure, meritorious distributional analysis, trend Dynamic Announce, alarm appliance flicker, alarming determining variable color, the variable color of pel condition, online help.
The anti-misoperation locking of each electric unit completes by with regard to region measurement and control unit, and the anti-misoperation locking of same electric pressure is completed by the master unit intercomed mutually, and in standing, interlocking is completed by Substation level.
Control operation function comprises that remote dispatching controls, the operation one to one of corresponding electric unit on the keyboard operation of Substation control room and substation relay protection room I/O unit.The priority controlled is followed successively by the man-to-man operation in substation relay protection room, the keyboard operation of Substation control room, remote dispatching control.In order to prevent misoperation, various control mode need meet electrical interlock condition, and order output comprises: single contact order, two point order, pulse command, serial command and become group command.
In monitoring system of electric substation from system to transmission request message, the transmission kind for information is divided into:
(1) real time information: measurements and calculations system around in various analog quantity and digital quantity, comprise voltage, electric current, power, electric degree etc., this type of information requires system Real-Time Monitoring, the running status of reflection system.(2) fault message: when system jam, the fault type reflected and accordingly fault actions value, this type of information needs to transmit with the very first time, and the system that ensures is after fault occurs, and energy is accident settlement rapidly, reduces loss.(3) state information: the information of reflection field equipment state, as switching value etc., this type of information only needs to transmit when the quantity of state of information changes.(4) control and parameter information: to the information required for equipment operating in system, as relay action signal, point information etc., transmit when this type of information is manual operation.
By the division of each key-course to monitoring system of electric substation, thus specify that the function of each layer, key-course in-site collecting deal with data on the spot, monitor abnormal, and take corresponding send mode according to relevant information type, adopt communicator communicating between key-course with station level on the spot simultaneously, station level is sent to carry out analyzing and processing and show the data of key-course on the spot, thus both achieved fast processing emergency on the spot, long-rangely can carry out monitoring analysis again, and make further decision-making, for the normal operation of transformer station provides guarantee.
The foregoing is only of the present invention and be preferably not limited to the present invention, obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (6)

1. a monitoring system of electric substation, is characterized in that, described monitoring system of electric substation is divided into Substation level and key-course on the spot.
2. monitoring system of electric substation as claimed in claim 1, it is characterized in that, Substation level comprise two fiber optic Ethernet, two monitoring host computers, man-machine work station, the remote action data process communicated with control centre and communicator, GPS couple time and clock system, two monitoring host computers work with active/standby mode simultaneously, remote action data process and communicator have primary channel automatic switching function, GPS timing device, comprise antenna, feeder line and pair time required communication cable.
3. monitoring system of electric substation as claimed in claim 2, it is characterized in that, on the spot key-course by measurement and control unit I/O device and on the spot control master unit form, measurement and control unit and the on the spot communication of control master unit adopt optical fiber Star network, and it is for subsequent use each other to control data between master unit on the spot, measurement and control unit is provided in station level equipment and stops transport or other manual operations in emergency circumstances, and mutually can switch with the computer operation under normal condition, key-course gathers various real time information on the spot, the operation of monitor and forecast primary equipment, the operation requirements of automatic synchronization local operation and substation level, and there is on the spot/distant place diverter switch, when station level and network failure, still can the monitor and forecast function of complete independently key-course on the spot.
4. monitoring system of electric substation as claimed in claim 3, it is characterized in that, monitoring system of electric substation also comprises control unit, control unit is made up of six modules, be divided into master board, output switch parameter tablet, analog acquisition plate, device motherboard, LCD display output module and input through keyboard module, adopt board plug type structure, the corresponding plate of each module, strong and weak electricity signal circuit is physically being separated simultaneously, the realization of analog acquisition plate carries out conversion to the voltage of secondary side on the electric current of the Current Transformer Secondary side on primary system and voltage transformer to be made it within AD sample range, and the magnitude of current is converted into voltage, On-off signal output board realizes the isolation of switching value by inner photoelectric isolating device and relay block, LCD MODULE and the output block of input through keyboard module respectively as man-machine interface and the input block of man-machine interface, master board comprises: analog quantity filter circuit, analog quantity MUX, AD conversion devices, program storage, data storage, communication interface device and microprocessor.
5. monitoring system of electric substation as claimed in claim 4, it is characterized in that, supervisory control system has Real time Data Acquisition function, graphical display function, anti mis-closedown function and control operation function,
Data acquisition system analog quantity, quantity of state, digital quantity and pulsed quantity,
Analog input adopts AC sampling mode, and leave transmitter input interface, the voltage transformer magnitude of voltage summation current transformer current value be sampled enters I/0 unit after electrical isolation, the preliminary treatment of I/0 unit to sampled data comprises: circuit breaking detects, anti-interference, digital filtering, error compensation, reasonability judge and Standard graduation conversion and gradient calculation, according to magnitude of voltage and current value calculating active power, reactive power, power factor and the electricity real time data of sampling
The collection of digital quantity comprises the position signalling of circuit breaker and isolation switch, relaying protection actuating signal, accident/fault-signal, the position signalling of manual/auto way selection and electric degree pulsed quantity; digital quantity enters I/0 unit after Phototube Coupling; through anti-contact bounce process, hardware-software filtering, fiducial time compensates and distinguishing validity enters database
Graphical display function, display electric hookup, electrical arrangement geographical position figure, system global structure figure, variable curve, tidal current chart, list of thing, chance event control board, form, waveform, analysis chart, information window, 3 D stereo rod figure, there is bus variable color, real-time curve, voltage rod figure, meritorious distributional analysis, trend Dynamic Announce, alarm appliance flicker, alarming determining variable color, the variable color of pel condition, online help function
The anti-misoperation locking of each electric unit is completed by measurement and control unit, and the anti-misoperation locking of same electric pressure is completed by the master unit intercomed mutually, and in standing, interlocking is completed by Substation level,
Control operation function comprises that remote dispatching controls, the operation one to one of corresponding electric unit on the keyboard operation of Substation control room and substation relay protection room I/O unit, and the priority of control is followed successively by the man-to-man operation in substation relay protection room, the keyboard operation of Substation control room, remote dispatching control.
6. monitoring system of electric substation as claimed in claim 5, it is characterized in that, in monitoring system of electric substation, the transmission kind of information is divided into:
(1) real time information: measurements and calculations system around in various analog quantity and digital quantity, comprise voltage, electric current, power, electric degree, require system Real-Time Monitoring, reflection system running status,
(2) fault message: when system jam, the fault type reflected and corresponding fault actions value, informational needs transmitted with the very first time,
(3) state information: the information of reflection field equipment state, needs to transmit when the quantity of state of information changes,
(4) control and parameter information: to the information required for equipment operating in system, comprise relay action signal, point information, transmit when manual operation.
CN201510416476.8A 2015-07-16 2015-07-16 Transformer substation monitoring system Pending CN104967220A (en)

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CN107884646A (en) * 2017-11-03 2018-04-06 福建和盛高科技产业有限公司 Transformer Substation Online Monitoring System Critical method
CN109472850A (en) * 2018-11-26 2019-03-15 广东精鹰传媒股份有限公司 A kind of implementation method of 3 D stereo electric current light effect
CN109698554A (en) * 2019-01-03 2019-04-30 国网山东省电力公司平邑县供电公司 Substation equipment Dispatching monitor and control system and method
CN110132617A (en) * 2019-05-15 2019-08-16 成都博瑞时代科技有限公司 A kind of rail vehicle on-line monitoring system
CN111006600A (en) * 2019-10-31 2020-04-14 中国空间技术研究院 System for measuring satellite temperature and deformation quantity by using fiber bragg grating
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