CN105071532A - Transformer station automatic system - Google Patents
Transformer station automatic system Download PDFInfo
- Publication number
- CN105071532A CN105071532A CN201510426022.9A CN201510426022A CN105071532A CN 105071532 A CN105071532 A CN 105071532A CN 201510426022 A CN201510426022 A CN 201510426022A CN 105071532 A CN105071532 A CN 105071532A
- Authority
- CN
- China
- Prior art keywords
- data
- control
- message
- protection
- information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
A transformer station automatic system performs functional combination and optimized design on secondary equipment (including a measuring instrument, a signal system, relay protection, an automatic device, and a telecontrol device) of a transformer station so as to achieve comprehensive automatic functions of the main devices of the transformer station, a power transmission line, and a power distribution line by using advanced computer technology, modern electronic technology and communication technology, and signal processing technology, wherein the comprehensive automatic functions includes automatic monitoring, measurement, automatic control, microcomputer protection, and communication with a control center.
Description
Technical field
The present invention relates to a kind of technical field of electric power network system Substation control, specifically, is a kind of electric substation automation system.
Background technology
Transformer station is the important step of electrical power trans mission/distribution system; traditional Substation secondary circuit part is made up of relaying protection, local monitoring, telemechanical apparatus, failure wave-recording and range finding, direct current system and insulation monitoring and all kinds of device such as to communicate. and they adopt independently device to complete self function and equal self-organizing system separately; inevitably produce function between all kinds of device thus mutually to cover; parts repeated configuration, consumes a large amount of connecting lines and cable.Maintenance workload is large simultaneously, and equipment dependability is poor, is unfavorable for improving operation and management level and automatization level; Be not suitable with the requirement that electric power system calculates fast and controls in real time.The requirement reducing transformer station's cost and improve its safe and economical operation cannot be met.
Summary of the invention
For the deficiency that prior art exists; the present invention proposes a kind of electric substation automation system; electric substation automation system by the secondary device (comprising measuring instrument, signal system, relaying protection, automatics and telemechanical apparatus etc.) of transformer station through the combination of function and optimal design; utilize advanced computer technology, the modern electronic technology communication technology and signal processing technology; realize the automatic monitoring to the capital equipment of full transformer station and defeated, distribution line, measurement, automatically to control and Microcomputer Protection, and the comprehensive automation function such as to communicate with control centre.
By electric substation automation system by function and logic communication abstract be 3 layer architectures: substation level, wall, process layer.
Process layer is the faying face of primary equipment and secondary device, and the major function of process layer is divided three classes:
(1) real time execution electric parameters detects.The mainly detection of electric current, voltage, phase place and harmonic component, other electric parameters such as meritorious, idle, electric flux obtain by the equipment computing of wall.Gather analog signal by the collection of digital quantity, dynamic property is good, strong anti-interference performance;
(2) operational outfit state-detection.Transformer station needs the equipment carrying out state parameter detection to mainly contain transformer, circuit breaker, isolating switch, bus, capacitor, reactor and DC power system etc.The content of on-line checkingi mainly contains the data such as temperature, pressure, density, insulation, mechanical property and operating state;
(3) operation control command performs.The execution of operation control command comprises load tap changer regulable control, electric capacity, the control of reactor switching, circuit breaker, isolating switch deciliter control and the control of DC power supply impulse electricity etc.;
The major function of wall is: gather this interval procedure layer real time data information; Implement the protecting control function to primary equipment; Implement this interval operation blocking function; The implementation and operation same period and other controlling functions; To data acquisition, statistical calculation and sending of control command, there is priority level control; Perform the communications function of forming a connecting link of data, complete at a high speed the network communicating function with process layer and substation level simultaneously.
The major function of substation level is: the real time data information being gathered full station by network, refreshes real-time data base, upgrades historical data base; By the dispatching of power netwoks of relevant data direct information or control centre: receive dispatching of power netwoks or control centre's relevant controlling order and turn wall, process layer performs; There is the full station operation locking controlling functions of online programmable; There is local monitoring, human-computer interaction function in station; There is the function etc. of the on-line maintenance to wall, process layer devices, online configuration, online modification parameter.
Transformer station's bus is used for substation level and interval interlayer communication, and process bus is used for wall and process interlayer communication, adopts the sampled value transmission of process bus based on Ethernet mode.Sampled value transmission can be divided into two types: client/server service and sampled value service.Client/server service realizes the operation to sampled value controll block, and belong to the transfer of data after processing sampled value, time requirement is relatively low, is mapped to by SCSM the TCP/IP Ethernet that application layer is MMS.Sampled value service realizes the operation to multicasting sampled value class model and clean culture sampled value class model, belongs to original data transmissions, requires strict, map directly to ethernet link layer by ASDU to the transmission time.
General substation time class model comprises general object-oriented transformer substation case and general substation state event two controls class.General object-oriented transformer substation case is exchanged by the interior on a large scale common data of data set organization for supporting.Information is changed owing to comprising quantity of state in general object-oriented transformer substation case, and the time that last quantity of state changes, therefore general object-oriented transformer substation case needs transmission speed faster, and in transmitting procedure, general object-oriented transformer substation case maps directly to link layer protocol data unit.General substation state event model is similar to general object-oriented transformer substation case model, and the type of just information exchange is different, and general substation state event is for transmitting simple state information list.General substation state event adopts its distinctive protocol stack, and application layer is mapped to MMS, and lower floor adopts connectionless network protocol, takes the transmission mode of broadcast or multicasting to carry out transfer of data.
Electric substation automation system network service comprises: use the Real Data Exchangs that MMS carries out as network application-level protocol.The non-real-time data undertaken by http, xml, web browser is exchanged.Adopt the Real Data Exchangs of single point-to-multipoint one-way transmission Ethernet.
The major function of comprehensive automation system of transformer substation comprises:
(1) Microcomputer Protection function
Comprise route protection, protection for feed line (band one or many reclosing function), bus protection, tranformer protection, electricity
Container is protected, automatic closing, low-frequency load reduction etc.
(2) data acquisition
Acquisition state amount, analog quantity and pulsed quantity etc.;
1. quantity of state collection
Comprise circuit-breaker status, isolating switch state, grounding switch state, load tap changer position etc., these signal major parts adopt the switching value interrupting input of Phototube Coupling mode.Adopt two-position contact to gather to important quantity of state (as circuit breaker position), to ensure correctly to reflect circuit breaker position, prevent the inefficacy of relay contact and shake and the state caused is reported by mistake;
2. analog acquisition
To sample each section of busbar voltage, the electric current in each line loop and performance number; The non-electrical parameter such as temperature, pressure of the electrical parameter such as mains frequency and phase place and transformer.Electrical parameter adopts AC sampling in automated system, directly gathers the alternating-current parameter provided by current transformer and voltage transformer, adopts transmitter and A/D mapping mode to the collection of non-electrical parameter;
3. electric energy acquisition
Comprise active energy and reactive energy data, and the functions such as timesharing is cumulative, electric energy balance can be realized;
(3) logout and failure wave-recording
Logout comprises protection act sequential recording, and switch is jumped and closed record, and when occurring electric network fault (as ground short circuit fault), the waveform of a period of time before and after energy record trouble, for analysis.
(4) adjust protection definite value in a distant place
To each protective device, can one or more groups protection definite value be set in local or a distant place, and can at local or distant place display, switching setting value.
(5) control and operate
Can to circuit breaker, isolating switch point, close and operate, regulable control is carried out to load tap changer, Capacitor banks is changed and cuts.
To control and operation can the display of background monitoring system in control centre in the distance or transformer station and keyboard say the word, also can at the enterprising line operate of device panel, to ensure the higher use flexibility of system.Control and operate also should comprise locking and anti-error function.
(6) voltage automatically regulate, capacitor automatic switching and automatic closing
Automatically load tap changer position or switched capacitor is regulated by system voltage and power factor change.After main power supply lost efficacy, alternate power autocast.
(7) with remote dispatching center to center communications
Realize the remote measurement of the routine of telemechanical apparatus, remote signalling, remote control and remote regulating four remote control function, the digital quantity and the quantity of state that are about to collection are sent to control centre in real time, and accept control and the adjustment operation order of higher level control centre.If there is accident to occur, occur as the accident such as switch changed position or digital quantity is out-of-limit time then insert preferential transmission, report to the police to control centre in time.In addition failure wave-recording and other relay protection informations are sent to control centre, accept the order etc. of the amendment relay protection setting value sent control centre simultaneously.Transfer pipe can be power carrier, microwave, optical fiber or designated lane.
(8) data processing and statistic record
System processes gathering the quantity of state, digital quantity and the pulsed quantity that come by the requirement of regulation, is sent to background computer and the higher level control centre of local supervisory control system.These data comprise: the electric current of power transmission line, active power, reactive power, busbar voltage etc.; Breaker actuation number of times etc.
(9) human-computer interaction function
The human-computer interaction interface of operating personnel is indicator screen and keyboard or Genius mouse; following major function can be realized: screen can show various picture, data and form; comprise main wiring diagram, on off state, Power Flow Information, alarm screen, accident record, load curve; the configuration of system and working condition, protection seting value, day operation form etc., and display frame and the print record of form copy can be got off.
Implement a distant place to control and operation, the input of protective device and exit, the operation, load tap changer Position Control etc. of circuit breaker and isolating switch.
Input or Update Table, what the setting of the password of remote operation, the code of operating personnel, protection definite value and amendment, alarming value setting and amendment, a distant place/locality operated is arranged.The diagnosis self-detection result of each equipment of display system.
(10) the self diagnosis measuring ability of system
Each device such as protective device, data acquisition unit, the control device etc. of system all have self-diagnostic function, and diagnostic result periodically send background computer and the remote dispatching center of local supervisory control system.
Transformer station comprises ten data-interfaces:
Interface one is for exchange protection data between wall and substation level, and interface six is for exchanging control data between wall and substation level, and wall comprises with communicating of substation level: a. measures and state information.Measured value normally and under accident conditions and calculated value, circuit breaker, isolating switch, main transformer position of tapping switch, each wall running status, protection act information etc.B. operation information.Circuit breaker and isolating switch point, close order, the adjustment of main transformer tap joint position, the input of automatics with exit.C. parameter information.The setting value etc. of Microcomputer Protection and automatics.
Interface two for exchange protection data between wall and Remote protection, the analog signal between local and remote station Relay Protection Unit or the data flow of binary signal.
Interface three is for swap data in wall; the equipment of wall has control survey unit and/or Relay Protection Unit; namely communication in wall be the data flow between relaying protection and control, supervision, measurement, or the data flow of two or more relay protection function/equipment room.Comprise the running status, synchronized sampling information etc. of measurement data, circuit-breaker status, device.
Interface four for electric current between process layer and wall and voltage transient exchanges data, interface five for exchanging control data between process layer and wall, the data flow between the intelligent sensor and actuator of wall and high pressure primary equipment.The equipment great majority of wall need magnitude of voltage and accident conditions normal from the potential and current transformers collection of process layer and current value, the state information of collecting device and failure diagnosis information, these information comprise: circuit breaker and isolating switch position, main transformer tap joint position, the diagnostic message of transformer, instrument transformer, lightning arrester and breaker operator information.
Interface seven is for the swapping data of substation level and distant place engineer station.
Interface eight is for the swapping data of wall, and the exchanges data between different interval layer has: master, backup relaying operating state, interlocking, relevant protection act locking, the information such as VQC.
Interface nine for the swapping data of substation level, the communication between the distinct device of substation level, according to the task of equipment and the feature of function, the metrical information needed for transmission, state information and operational order etc.
Interface ten is for exchanging control data between substation level and distant place engineer station, and center, a distant place is one and has the fixing link-attached network control center, or has the maintenance center of the dial-up link by public network.Event is by an external clock or the clock be integrated in system and transformer substation synchronous.
The message of substation communication Internet Transmission comprises:
(1) rapid message
The type message is generally a little simple binary coding, comprises data, order or simple message etc., as tripping operation, combined floodgate, coincidence, startup, stopping, locking, unblock, triggering, releasing, state variation.After reception IED receives this message under normal circumstances, made an immediate response in some way by the correlation function receiving the type message;
General object message towards transformer substation case belongs to rapid message.General object message towards transformer substation case comprises that spacing devices issues switch that the order such as protection exit action message, tripping operation, combined floodgate, locking of process device and process device send to spacing devices deciliter, equipment throw move back, tap_changing, the information such as gear switch;
(2) middling speed message
Comprise the markers that a transmit leg is arranged in message, under normal circumstances, through internal time delay, recipient responds, and calculates according to the markers in message.The remote measurement comprising monitoring host computer poll or the spacing devices cycle is sent, remote signalling message, the event report that spacing devices send in monitoring host computer active or equipment state message;
(3) low speed message
To comprise when needing the complicated message of target, for transmission events record, reading or change set point value, automatically to control and the general display of some system datas at a slow speed.During the band of Normal Alarm/event handling, target is reported to the police and the message such as non-electrical measurement of event, temperature and so on belongs to the type;
(4) initial data message
This type of message comprises the output data of digital sensor and digital instrument transformer, and data are made up of the continuous print synchronous data flow from each IED;
Sampled value message transmission is initial data message.The digital quantity that sampled value message transmission is formed after the analogue value that electric current, voltage transformer secondary export is carried out A/D conversion is the basis of the functions such as protection, observing and controlling.Sampled value message transmission periodically transmits;
(5) file transfer message
Message is used for the large data files such as transmission log, information purpose data, definite value;
(6) time synchronized message
Message is used for the internal clocking of IED in synchronous electric substation automation system.The timing tracking accuracy of different stage is required according to event markers or initial data sampling precision.Server is by receiving gps signal or the atomic clock that the carries time reference as system, and the Time Service that client computer is provided by regular visit server obtains correct time information, adjusts the system clock of oneself, reaches the object of network time synchronization;
(7) access control command message
Message is for transmitting control command, and control command is by requiring that the Local or Remote human interface function of higher-security sends;
The operations staff of supervisory control system in transformer station, make operations staff by realizing supervision, the operation such as measurement and remote control in whole power station to the operation of computer, improve the reliability of substation operation, economy and ease for maintenance, make operator on duty and system coordinator hold the initiative of security control, accident treatment, reduce and avoid misoperation, erroneous judgement etc.Supervisory control system comprises;
(1) real-time data acquisition and process
This function comprises: the information such as analog quantity, switching value, electricity, protection act gathering each protection unit in transformer station, and the information of some other multifunction instrument, and ensure constantly to be upgraded fast, system is responded fast to various event; Data message is carried out to the preliminary treatment of some necessity, as the parsing to communication protocol, data message classification, upgrade database;
(2) in-service monitoring
In-service monitoring mainly carries out real-time supervision to the running status of various electric equipment in station, system primary connection circuit figure shows the various status datas such as the voltage of each electric equipment, electric current, frequency and on off state in real time, exactly the data message of collection is showed to operations staff with the interface of close friend;
Supervision content comprises:
1) the real-time electric parameter of substation bus arrangement figure, Real-time Collection and calculating is shown.On electric main wiring diagram, circuit breaker is corresponding with real-time status with the position of isolation switch.System Real-time Collection and the presence parameter etc. of the voltage, electric current, active energy, reactive energy, power factor, frequency and the various process layer smart machine that calculate, show over the display in real time;
2) Realtime Alerts display.As shown protection act, out-of-limit event, comprise alert event and content etc.;
3) sequence of events recording display.The content that occurs of presented event and the time in order;
4) the set point display of definite value and measure and control device is protected;
5) various historical data curvilinear trend display.As shown busbar voltage curve, handing over depressor load curve etc.;
6) other data display.Comprise form, failure logging, equipment operation condition etc.;
(3) control is run;
There is provided the control inerface of convenient close friend, operations staff can be calibrated protection standby in station and measuring unit, issue protection definite value and deciliter circuit breaker, regulate load tap changer, carry out the operations such as switching control to capacitor by keyboard or mouse.Straighforward operation order can be accepted simultaneously, carry out remote operation;
(4) historgraphic data recording and inquiry
By analog quantity, switching value, the electricity of each protection unit of collection, and the information during system cloud gray model, as the operation note etc. of sequence of event, failure wave-recording, operations staff, be regularly saved in historical data base.And classified index is carried out to it, to facilitate inquiry;
(5) with higher level's dispatching communication
The data message that the various devices in station provide, consolidation becomes communication packet as required. and upload when higher level's scheduling needs, the order of higher level's dispatching down distributing is accepted, resolves and complete.
Accompanying drawing explanation
Fig. 1 is the structural framing figure of a kind of electric substation automation system of the present invention.
Embodiment
As shown in Figure 1; a kind of electric substation automation system; electric substation automation system by the secondary device (comprising measuring instrument, signal system, relaying protection, automatics and telemechanical apparatus etc.) of transformer station through the combination of function and optimal design; utilize advanced computer technology, the modern electronic technology communication technology and signal processing technology; realize the automatic monitoring to the capital equipment of full transformer station and defeated, distribution line, measurement, automatically to control and Microcomputer Protection, and the comprehensive automation function such as to communicate with control centre.
By electric substation automation system by function and logic communication abstract be 3 layer architectures: substation level, wall, process layer.
Process layer is the faying face of primary equipment and secondary device, and the major function of process layer is divided three classes:
(1) real time execution electric parameters detects.The mainly detection of electric current, voltage, phase place and harmonic component, other electric parameters such as meritorious, idle, electric flux obtain by the equipment computing of wall.Gather analog signal by the collection of digital quantity, dynamic property is good, strong anti-interference performance;
(2) operational outfit state-detection.Transformer station needs the equipment carrying out state parameter detection to mainly contain transformer, circuit breaker, isolating switch, bus, capacitor, reactor and DC power system etc.The content of on-line checkingi mainly contains the data such as temperature, pressure, density, insulation, mechanical property and operating state;
(3) operation control command performs.The execution of operation control command comprises load tap changer regulable control, electric capacity, the control of reactor switching, circuit breaker, isolating switch deciliter control and the control of DC power supply impulse electricity etc.;
The major function of wall is: gather this interval procedure layer real time data information; Implement the protecting control function to primary equipment; Implement this interval operation blocking function; The implementation and operation same period and other controlling functions; To data acquisition, statistical calculation and sending of control command, there is priority level control; Perform the communications function of forming a connecting link of data, complete at a high speed the network communicating function with process layer and substation level simultaneously.
The major function of substation level is: the real time data information being gathered full station by network, refreshes real-time data base, upgrades historical data base; By the dispatching of power netwoks of relevant data direct information or control centre: receive dispatching of power netwoks or control centre's relevant controlling order and turn wall, process layer performs; There is the full station operation locking controlling functions of online programmable; There is local monitoring, human-computer interaction function in station; There is the function etc. of the on-line maintenance to wall, process layer devices, online configuration, online modification parameter.
Transformer station's bus is used for substation level and interval interlayer communication, and process bus is used for wall and process interlayer communication, adopts the sampled value transmission of process bus based on Ethernet mode.Sampled value transmission can be divided into two types: client/server service and sampled value service.Client/server service realizes the operation to sampled value controll block, and belong to the transfer of data after processing sampled value, time requirement is relatively low, is mapped to by SCSM the TCP/IP Ethernet that application layer is MMS.Sampled value service realizes the operation to multicasting sampled value class model and clean culture sampled value class model, belongs to original data transmissions, requires strict, map directly to ethernet link layer by ASDU to the transmission time.
General substation time class model comprises general object-oriented transformer substation case and general substation state event two controls class.General object-oriented transformer substation case is exchanged by the interior on a large scale common data of data set organization for supporting.Information is changed owing to comprising quantity of state in general object-oriented transformer substation case, and the time that last quantity of state changes, therefore general object-oriented transformer substation case needs transmission speed faster, and in transmitting procedure, general object-oriented transformer substation case maps directly to link layer protocol data unit.General substation state event model is similar to general object-oriented transformer substation case model, and the type of just information exchange is different, and general substation state event is for transmitting simple state information list.General substation state event adopts its distinctive protocol stack, and application layer is mapped to MMS, and lower floor adopts connectionless network protocol, takes the transmission mode of broadcast or multicasting to carry out transfer of data.
Electric substation automation system network service comprises: use the Real Data Exchangs that MMS carries out as network application-level protocol.The non-real-time data undertaken by http, xml, web browser is exchanged.Adopt the Real Data Exchangs of single point-to-multipoint one-way transmission Ethernet.
The major function of comprehensive automation system of transformer substation comprises:
(1) Microcomputer Protection function
Comprise route protection, protection for feed line (band one or many reclosing function), bus protection, tranformer protection, electricity
Container is protected, automatic closing, low-frequency load reduction etc.;
(2) data acquisition
Acquisition state amount, analog quantity and pulsed quantity etc.;
1. quantity of state collection
Comprise circuit-breaker status, isolating switch state, grounding switch state, load tap changer position etc., these signal major parts adopt the switching value interrupting input of Phototube Coupling mode.Adopt two-position contact to gather to important quantity of state (as circuit breaker position), to ensure correctly to reflect circuit breaker position, prevent the inefficacy of relay contact and shake and the state caused is reported by mistake;
2. analog acquisition
To sample each section of busbar voltage, the electric current in each line loop and performance number; The non-electrical parameter such as temperature, pressure of the electrical parameter such as mains frequency and phase place and transformer.Electrical parameter adopts AC sampling in automated system, directly gathers the alternating-current parameter provided by current transformer and voltage transformer, adopts transmitter and A/D mapping mode to the collection of non-electrical parameter;
3. electric energy acquisition
Comprise active energy and reactive energy data, and the functions such as timesharing is cumulative, electric energy balance can be realized;
(3) logout and failure wave-recording
Logout comprises protection act sequential recording, and switch is jumped and closed record, and when occurring electric network fault (as ground short circuit fault), the waveform of a period of time before and after energy record trouble, for analysis;
(4) adjust protection definite value in a distant place
To each protective device, can one or more groups protection definite value be set in local or a distant place, and can at local or distant place display, switching setting value;
(5) control and operate
Can to circuit breaker, isolating switch point, close and operate, regulable control is carried out to load tap changer, Capacitor banks is changed and cuts;
To control and operation can the display of background monitoring system in control centre in the distance or transformer station and keyboard say the word, also can at the enterprising line operate of device panel, to ensure the higher use flexibility of system.Control and operate also should comprise locking and anti-error function;
(6) voltage automatically regulate, capacitor automatic switching and automatic closing;
Automatically load tap changer position or switched capacitor is regulated by system voltage and power factor change.After main power supply lost efficacy, alternate power autocast;
(7) with remote dispatching center to center communications
Realize the remote measurement of the routine of telemechanical apparatus, remote signalling, remote control and remote regulating four remote control function, the digital quantity and the quantity of state that are about to collection are sent to control centre in real time, and accept control and the adjustment operation order of higher level control centre.If there is accident to occur, occur as the accident such as switch changed position or digital quantity is out-of-limit time then insert preferential transmission, report to the police to control centre in time.In addition failure wave-recording and other relay protection informations are sent to control centre, accept the order etc. of the amendment relay protection setting value sent control centre simultaneously.Transfer pipe can be power carrier, microwave, optical fiber or designated lane;
(8) data processing and statistic record
System processes gathering the quantity of state, digital quantity and the pulsed quantity that come by the requirement of regulation, is sent to background computer and the higher level control centre of local supervisory control system.These data comprise: the electric current of power transmission line, active power, reactive power, busbar voltage etc.; Breaker actuation number of times etc.;
(9) human-computer interaction function
The human-computer interaction interface of operating personnel is indicator screen and keyboard or Genius mouse, following major function can be realized: screen can show various picture, data and form, comprise main wiring diagram, on off state, Power Flow Information, alarm screen, accident record, load curve, the configuration of system and working condition, protection seting value, day operation form etc., and display frame and the print record of form copy can be got off;
Implement a distant place to control and operation, the input of protective device and exit, the operation, load tap changer Position Control etc. of circuit breaker and isolating switch;
Input or Update Table, what the setting of the password of remote operation, the code of operating personnel, protection definite value and amendment, alarming value setting and amendment, a distant place/locality operated is arranged.The diagnosis self-detection result of each equipment of display system;
(10) the self diagnosis measuring ability of system
Each device such as protective device, data acquisition unit, the control device etc. of system all have self-diagnostic function, and diagnostic result periodically send background computer and the remote dispatching center of local supervisory control system;
Transformer station comprises ten data-interfaces
Interface one is for exchange protection data between wall and substation level, and interface six is for exchanging control data between wall and substation level, and wall comprises with communicating of substation level: a. measures and state information.Measured value normally and under accident conditions and calculated value, circuit breaker, isolating switch, main transformer position of tapping switch, each wall running status, protection act information etc.B. operation information.Circuit breaker and isolating switch point, close order, the adjustment of main transformer tap joint position, the input of automatics with exit.C. parameter information.The setting value etc. of Microcomputer Protection and automatics.
Interface two for exchange protection data between wall and Remote protection, the analog signal between local and remote station Relay Protection Unit or the data flow of binary signal.
Interface three is for swap data in wall; the equipment of wall has control survey unit and/or Relay Protection Unit; namely communication in wall be the data flow between relaying protection and control, supervision, measurement, or the data flow of two or more relay protection function/equipment room.Comprise the running status, synchronized sampling information etc. of measurement data, circuit-breaker status, device.
Interface four for electric current between process layer and wall and voltage transient exchanges data, interface five for exchanging control data between process layer and wall, the data flow between the intelligent sensor and actuator of wall and high pressure primary equipment.The equipment great majority of wall need magnitude of voltage and accident conditions normal from the potential and current transformers collection of process layer and current value, the state information of collecting device and failure diagnosis information, these information comprise: circuit breaker and isolating switch position, main transformer tap joint position, the diagnostic message of transformer, instrument transformer, lightning arrester and breaker operator information.
Interface seven is for the swapping data of substation level and distant place engineer station.
Interface eight is for the swapping data of wall, and the exchanges data between different interval layer has: master, backup relaying operating state, interlocking, relevant protection act locking, the information such as VQC.
Interface nine for the swapping data of substation level, the communication between the distinct device of substation level, according to the task of equipment and the feature of function, the metrical information needed for transmission, state information and operational order etc.
Interface ten is for exchanging control data between substation level and distant place engineer station, and center, a distant place is one and has the fixing link-attached network control center, or has the maintenance center of the dial-up link by public network.Event is by an external clock or the clock be integrated in system and transformer substation synchronous.
The message of substation communication Internet Transmission comprises:
(1) rapid message
The type message is generally a little simple binary coding, comprises data, order or simple message etc., as tripping operation, combined floodgate, coincidence, startup, stopping, locking, unblock, triggering, releasing, state variation.After reception IED receives this message under normal circumstances, made an immediate response in some way by the correlation function receiving the type message;
General object message towards transformer substation case belongs to rapid message.General object message towards transformer substation case comprises that spacing devices issues switch that the order such as protection exit action message, tripping operation, combined floodgate, locking of process device and process device send to spacing devices deciliter, equipment throw move back, tap_changing, the information such as gear switch;
(2) middling speed message
Comprise the markers that a transmit leg is arranged in message, under normal circumstances, through internal time delay, recipient responds, and calculates according to the markers in message.The remote measurement comprising monitoring host computer poll or the spacing devices cycle is sent, remote signalling message, the event report that spacing devices send in monitoring host computer active or equipment state message;
(3) low speed message
To comprise when needing the complicated message of target, for transmission events record, reading or change set point value, automatically to control and the general display of some system datas at a slow speed.During the band of Normal Alarm/event handling, target is reported to the police and the message such as non-electrical measurement of event, temperature and so on belongs to the type;
(4) initial data message
This type of message comprises the output data of digital sensor and digital instrument transformer, and data are made up of the continuous print synchronous data flow from each IED;
Sampled value message transmission is initial data message.The digital quantity that sampled value message transmission is formed after the analogue value that electric current, voltage transformer secondary export is carried out A/D conversion is the basis of the functions such as protection, observing and controlling.Sampled value message transmission periodically transmits;
(5) file transfer message
Message is used for the large data files such as transmission log, information purpose data, definite value;
(6) time synchronized message
Message is used for the internal clocking of IED in synchronous electric substation automation system.The timing tracking accuracy of different stage is required according to event markers or initial data sampling precision.Server is by receiving gps signal or the atomic clock that the carries time reference as system, and the Time Service that client computer is provided by regular visit server obtains correct time information, adjusts the system clock of oneself, reaches the object of network time synchronization;
(7) access control command message
Message is for transmitting control command, and control command is by requiring that the Local or Remote human interface function of higher-security sends.
The operations staff of supervisory control system in transformer station, make operations staff by realizing supervision, the operation such as measurement and remote control in whole power station to the operation of computer, improve the reliability of substation operation, economy and ease for maintenance, make operator on duty and system coordinator hold the initiative of security control, accident treatment, reduce and avoid misoperation, erroneous judgement etc.
Supervisory control system comprises
(1) real-time data acquisition and process
This function comprises: the information such as analog quantity, switching value, electricity, protection act gathering each protection unit in transformer station, and the information of some other multifunction instrument, and ensure constantly to be upgraded fast, system is responded fast to various event; Data message is carried out to the preliminary treatment of some necessity, as the parsing to communication protocol, data message classification, upgrade database;
(2) in-service monitoring
In-service monitoring mainly carries out real-time supervision to the running status of various electric equipment in station, system primary connection circuit figure shows the various status datas such as the voltage of each electric equipment, electric current, frequency and on off state in real time, exactly the data message of collection is showed to operations staff with the interface of close friend;
Supervision content comprises:
1) the real-time electric parameter of substation bus arrangement figure, Real-time Collection and calculating is shown.On electric main wiring diagram, circuit breaker is corresponding with real-time status with the position of isolation switch.System Real-time Collection and the presence parameter etc. of the voltage, electric current, active energy, reactive energy, power factor, frequency and the various process layer smart machine that calculate, show over the display in real time;
2) Realtime Alerts display.As shown protection act, out-of-limit event, comprise alert event and content etc.;
3) sequence of events recording display.The content that occurs of presented event and the time in order;
4) the set point display of definite value and measure and control device is protected;
5) various historical data curvilinear trend display.As shown busbar voltage curve, handing over depressor load curve etc.;
6) other data display.Comprise form, failure logging, equipment operation condition etc.;
(3) control is run
There is provided the control inerface of convenient close friend, operations staff can be calibrated protection standby in station and measuring unit, issue protection definite value and deciliter circuit breaker, regulate load tap changer, carry out the operations such as switching control to capacitor by keyboard or mouse.Straighforward operation order can be accepted simultaneously, carry out distant place behaviour;
(4) historgraphic data recording and inquiry
By analog quantity, switching value, the electricity of each protection unit of collection, and the information during system cloud gray model, as the operation note etc. of sequence of event, failure wave-recording, operations staff, be regularly saved in historical data base.And classified index is carried out to it, to facilitate inquiry;
(5) with higher level's dispatching communication
The data message that the various devices in station provide, consolidation becomes communication packet as required. and upload when higher level's scheduling needs, the order of higher level's dispatching down distributing is accepted, resolves and complete;
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. an electric substation automation system, is characterized in that, described electric substation automation system comprises substation level, wall, process layer.
2. electric substation automation system as claimed in claim 1, is characterized in that, process layer comprises real time execution electric parameters and detects, operational outfit state-detection, and operation control command performs;
Comprising of wall gathers wall real time data information; Implement the protecting control function to primary equipment; Implement this interval operation blocking function; The implementation and operation controlling functions same period; To data acquisition, statistical calculation and sending of control command, there is priority level control; Perform the communications function of forming a connecting link of data, with the network communicating function completed with process layer and substation level;
Substation level comprises the real time data information being gathered full station by network, refreshes real-time data base, upgrades historical data base; Data message is sent to dispatching of power netwoks or control centre: receive dispatching of power netwoks or control centre's control command and turn wall, process layer performs; There is the full station operation locking controlling functions of online programmable; There is local monitoring, human-computer interaction function in station; There is the function of the on-line maintenance to wall, process layer devices, online configuration, online modification parameter.
3. electric substation automation system as claimed in claim 2, it is characterized in that, described electric substation automation system comprises:
Microcomputer Protection function: comprise route protection, protection for feed line, bus protection, tranformer protection, capacitor protection, automatic closing, low-frequency load reduction;
Data acquisition function: acquisition state amount, analog quantity and pulsed quantity;
Quantity of state acquisition function: comprise circuit-breaker status, isolating switch state, grounding switch state, load tap changer position, signal adopts the switching value interrupting input of Phototube Coupling mode, analog acquisition: the electric current in each section of busbar voltage of sampling, each line loop and performance number; The non-electrical parameter of the electrical parameter of mains frequency and phase place and the temperature of transformer, pressure, electrical parameter adopts AC sampling, the collection of non-electrical parameter adopts transmitter and A/D conversion, electric energy acquisition: comprise active energy and reactive energy data, and can realize that timesharing is cumulative, electric energy balance function;
Logout and failure wave-recording:
Logout comprises protection act sequential recording, and switch is jumped and closed record;
(4) adjust protection definite value in a distant place
To each protective device, protection definite value is set in local or a distant place, and at local or distant place display, switching setting value;
(5) control and operate
To circuit breaker, isolating switch point, close operate, regulable control is carried out to load tap changer, Capacitor banks is changed and cuts;
(6) voltage automatically regulate, capacitor automatic switching and automatic closing
Automatically load tap changer position or switched capacitor is regulated by system voltage and power factor change, after main power supply lost efficacy, alternate power autocast;
(7) with remote dispatching center to center communications
Realize the remote measurement of telemechanical apparatus, remote signalling, remote control and remote regulating four remote control function, the digital quantity of collection and quantity of state are sent to control centre in real time, and accept control and the adjustment operation order of higher level control centre, when having accident to occur, report to the police to control centre in time, failure wave-recording and other relay protection informations are sent to control centre, accept the order of the amendment relay protection setting value sent control centre;
(8) data processing and statistic record
System processes gathering the quantity of state, digital quantity and the pulsed quantity that come by the requirement of regulation, is sent to background computer and the higher level control centre of supervisory control system;
(9) human-computer interaction function
The human-computer interaction interface of operating personnel is display, keyboard and Genius mouse, a distant place can be implemented control and operation, the input of protective device and exit, the operation of circuit breaker and isolating switch, load tap changer Position Control, input or Update Table, setting and amendment, the alarming value of the password of remote operation, the code of operating personnel, protection definite value arrange and revise, the setting of a distant place/locality operation, the diagnosis self-detection result of each equipment of display system;
(10) the self diagnosis measuring ability of system
Protective device, data acquisition unit, control device have self-diagnostic function, and diagnostic result periodically send background computer and the remote dispatching center of local supervisory control system.
4. electric substation automation system as claimed in claim 3; it is characterized in that; described electric substation automation system comprises ten data-interfaces: interface one is for exchange protection data between wall and substation level; interface six is for exchanging control data between wall and substation level, and wall comprises with communicating of substation level:
A. measure and state information: the measured value normally and under accident conditions and calculated value, circuit breaker, isolating switch, main transformer position of tapping switch, wall running status, protection act information;
B. operation information: circuit breaker and isolating switch point, close order, the adjustment of main transformer tap joint position, the input of automatics with exit;
C. parameter information: the setting value of Microcomputer Protection and automatics;
Interface two for exchange protection data between wall and Remote protection, the analog signal between local and remote station Relay Protection Unit or the data flow of binary signal;
Interface three is for swap data in wall, the equipment of wall has control survey unit and/or Relay Protection Unit, namely communication in wall be the data flow between relaying protection and control, supervision, measurement, comprises measurement data, circuit-breaker status, the running status of device, synchronized sampling information;
Interface four is for electric current between process layer and wall and voltage transient exchanges data, interface five is for exchanging control data between process layer and wall, magnitude of voltage from the potential and current transformers collection of process layer normal and accident conditions of the equipment of wall and current value, the state information of collecting device and failure diagnosis information, comprise: circuit breaker and isolating switch position, main transformer tap joint position, the diagnostic message of transformer, instrument transformer, lightning arrester and breaker operator information;
Interface seven is for the swapping data of substation level and distant place engineer station;
Interface eight is for the swapping data of wall, and the exchanges data between different interval layer has: master, backup relaying operating state, interlocking, relevant protection act locking, VQC information;
Interface nine for the swapping data of substation level, the communication between the distinct device of substation level, the metrical information needed for transmission, state information and operational order;
Interface ten is for exchanging control data between substation level and distant place engineer station.
5. electric substation automation system as claimed in claim 4, it is characterized in that, the message of substation automation system communication Internet Transmission comprises: rapid message: comprise data, order or simple message, after reception IED receives this message under normal circumstances, made an immediate response in some way by the correlation function receiving the type message;
Middling speed message: comprise the markers that a transmit leg is arranged in message, through internal time delay, recipient responds, calculates according to the markers in message;
Low speed message: to comprise when needing the complicated message of target, for transmission events record, reading or change set point value, automatically to control and the general display of system data at a slow speed;
Initial data message: message comprises the output data of digital sensor and digital instrument transformer, data are made up of the continuous print synchronous data flow from each IED;
File transfer message: message is used for transmission log, information purpose data, value data;
Time synchronized message: message is used for the internal clocking of IED in synchronous electric substation automation system, server is by receiving gps signal or the atomic clock that the carries time reference as system, the Time Service that client computer is provided by regular visit server obtains correct time information, adjust the system clock of oneself, reach the object of network time synchronization;
Access control command message: message is for transmitting control command.
6. electric substation automation system as claimed in claim 5, it is characterized in that, described electric substation automation system also comprises supervisory control system, and supervisory control system comprises:
Real-time data acquisition and process, gather analog quantity, switching value, electricity, the protection act information of each protection unit in transformer station, and the information of other multifunction instrument, and upgrade fast, and system is responded fast to various event; Preliminary treatment is carried out to data message;
In-service monitoring, real-time supervision is carried out to the running status of various electric equipment in station, system primary connection circuit figure shows the voltage of each electric equipment, electric current, frequency and on off state in real time, supervision content comprises: the real-time electric parameter of display substation bus arrangement figure, Real-time Collection and calculating, Realtime Alerts shows, sequence of events recording shows, the set point display of protection definite value and measure and control device, various historical data curvilinear trend display;
Run and control, the control inerface of convenient close friend is provided, operations staff can be calibrated protection standby in station and measuring unit, issue protection definite value and deciliter circuit breaker, regulate load tap changer, carry out switching control operation to capacitor by keyboard or mouse, straighforward operation order can be accepted simultaneously, carry out remote operation;
Historgraphic data recording and inquiry, by analog quantity, switching value, the electricity of each protection unit of collection, and the information during system cloud gray model, be regularly saved in historical data base, and classified index is carried out to it, to facilitate inquiry;
With higher level's dispatching communication, the data message consolidation that the various devices in station provide is become communication packet. upload when higher level's scheduling needs, the order of higher level's dispatching down distributing is accepted, resolves and complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510426022.9A CN105071532A (en) | 2015-07-20 | 2015-07-20 | Transformer station automatic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510426022.9A CN105071532A (en) | 2015-07-20 | 2015-07-20 | Transformer station automatic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105071532A true CN105071532A (en) | 2015-11-18 |
Family
ID=54500843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510426022.9A Pending CN105071532A (en) | 2015-07-20 | 2015-07-20 | Transformer station automatic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105071532A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515191A (en) * | 2015-12-22 | 2016-04-20 | 刘莹瑜 | Automation system for power plants |
| CN106451782A (en) * | 2016-11-03 | 2017-02-22 | 合肥华义电气科技有限公司 | Power transformation method of transformer substation |
| CN106451773A (en) * | 2016-10-10 | 2017-02-22 | 国电南瑞科技股份有限公司 | Realization method for process layer equipment of automatic system of intelligent substation with function decoupling effect |
| CN106602725A (en) * | 2016-12-13 | 2017-04-26 | 国网北京市电力公司 | Power distribution network monitoring system |
| CN108415802A (en) * | 2017-12-12 | 2018-08-17 | 太仓鼎诚电子科技有限公司 | A kind of Supervisory Control System for Substation |
| CN109246215A (en) * | 2018-09-10 | 2019-01-18 | 西门子电力自动化有限公司 | For obtaining the method and terminal of the fault data of relay in electric system |
| CN109345534A (en) * | 2018-11-23 | 2019-02-15 | 江西洪都航空工业集团有限责任公司 | A kind of method of Imaging Seeker telemetry digital quantity quantity of state joint parsing |
| CN109638968A (en) * | 2019-01-03 | 2019-04-16 | 国网新疆电力有限公司 | A kind of transforming plant distributed transformer and mutual inductor state monitoring method |
| CN109752972A (en) * | 2017-11-06 | 2019-05-14 | 松下知识产权经营株式会社 | Transcriber, reproducting method and reproduction program |
| CN110233898A (en) * | 2019-06-19 | 2019-09-13 | 成都交大许继电气有限责任公司 | A kind of long-range railroad substation fault diagnosis system and method |
| CN110445105A (en) * | 2019-07-30 | 2019-11-12 | 北京四方继保自动化股份有限公司 | A kind of substation relay protection method based on general purpose I ED towards function |
| CN110460159A (en) * | 2019-08-30 | 2019-11-15 | 国网辽宁省电力有限公司营口供电公司 | A kind of substation intelligent alarm system |
| CN110930669A (en) * | 2019-11-22 | 2020-03-27 | 国网湖北省电力有限公司武汉供电公司 | Monitoring and early warning system and method for tripping and closing loop of transformer substation |
| CN113869536A (en) * | 2021-09-28 | 2021-12-31 | 广东电网有限责任公司 | Automatic switch setting method suitable for remote operation and maintenance and related device |
| CN115684666A (en) * | 2022-10-28 | 2023-02-03 | 国家电网有限公司 | Relay protection equipment inspection system |
| CN117317990A (en) * | 2023-11-30 | 2023-12-29 | 广东电网有限责任公司中山供电局 | Microcomputer protection method and related device for ac power supply system of transformer substation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465563A (en) * | 2009-01-09 | 2009-06-24 | 北京美兰尼尔电子技术有限公司 | Integrated automation integration protection method and system |
| CN104600849A (en) * | 2015-02-25 | 2015-05-06 | 国电南瑞科技股份有限公司 | Smart power grid master station and substation depth anti-misoperation system implementation method |
-
2015
- 2015-07-20 CN CN201510426022.9A patent/CN105071532A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465563A (en) * | 2009-01-09 | 2009-06-24 | 北京美兰尼尔电子技术有限公司 | Integrated automation integration protection method and system |
| CN104600849A (en) * | 2015-02-25 | 2015-05-06 | 国电南瑞科技股份有限公司 | Smart power grid master station and substation depth anti-misoperation system implementation method |
Non-Patent Citations (3)
| Title |
|---|
| 吴义方: "广域保护约束机制及其在变电站防误闭锁中的应用", 《万方学位论文数据库》 * |
| 徐国军: "某单位110kV变电站综合自动化系统设计", 《万方学位论文数据库》 * |
| 李森林: "实时以太网技术提升数字化变电站过程层通信性能的研究", 《万方学位论文数据库》 * |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515191A (en) * | 2015-12-22 | 2016-04-20 | 刘莹瑜 | Automation system for power plants |
| CN106451773A (en) * | 2016-10-10 | 2017-02-22 | 国电南瑞科技股份有限公司 | Realization method for process layer equipment of automatic system of intelligent substation with function decoupling effect |
| CN106451773B (en) * | 2016-10-10 | 2018-12-04 | 国电南瑞科技股份有限公司 | The automatic system of intelligent transformer station process layer devices implementation method of function decoupling |
| CN106451782A (en) * | 2016-11-03 | 2017-02-22 | 合肥华义电气科技有限公司 | Power transformation method of transformer substation |
| CN106602725A (en) * | 2016-12-13 | 2017-04-26 | 国网北京市电力公司 | Power distribution network monitoring system |
| CN109752972A (en) * | 2017-11-06 | 2019-05-14 | 松下知识产权经营株式会社 | Transcriber, reproducting method and reproduction program |
| CN108415802A (en) * | 2017-12-12 | 2018-08-17 | 太仓鼎诚电子科技有限公司 | A kind of Supervisory Control System for Substation |
| CN109246215B (en) * | 2018-09-10 | 2021-07-30 | 西门子电力自动化有限公司 | Method and terminal for acquiring fault data of relay in power system |
| CN109246215A (en) * | 2018-09-10 | 2019-01-18 | 西门子电力自动化有限公司 | For obtaining the method and terminal of the fault data of relay in electric system |
| CN109345534A (en) * | 2018-11-23 | 2019-02-15 | 江西洪都航空工业集团有限责任公司 | A kind of method of Imaging Seeker telemetry digital quantity quantity of state joint parsing |
| CN109345534B (en) * | 2018-11-23 | 2022-03-15 | 江西洪都航空工业集团有限责任公司 | Method for jointly analyzing digital quantity state quantity of telemetering data of imaging seeker |
| CN109638968A (en) * | 2019-01-03 | 2019-04-16 | 国网新疆电力有限公司 | A kind of transforming plant distributed transformer and mutual inductor state monitoring method |
| CN110233898A (en) * | 2019-06-19 | 2019-09-13 | 成都交大许继电气有限责任公司 | A kind of long-range railroad substation fault diagnosis system and method |
| CN110445105B (en) * | 2019-07-30 | 2021-11-09 | 北京四方继保自动化股份有限公司 | Substation relay protection method based on universal IED function-oriented |
| CN110445105A (en) * | 2019-07-30 | 2019-11-12 | 北京四方继保自动化股份有限公司 | A kind of substation relay protection method based on general purpose I ED towards function |
| CN110460159A (en) * | 2019-08-30 | 2019-11-15 | 国网辽宁省电力有限公司营口供电公司 | A kind of substation intelligent alarm system |
| CN110930669B (en) * | 2019-11-22 | 2021-04-09 | 国网湖北省电力有限公司武汉供电公司 | Monitoring and early warning system and method for tripping and closing loop of transformer substation |
| CN110930669A (en) * | 2019-11-22 | 2020-03-27 | 国网湖北省电力有限公司武汉供电公司 | Monitoring and early warning system and method for tripping and closing loop of transformer substation |
| CN113869536A (en) * | 2021-09-28 | 2021-12-31 | 广东电网有限责任公司 | Automatic switch setting method suitable for remote operation and maintenance and related device |
| CN115684666A (en) * | 2022-10-28 | 2023-02-03 | 国家电网有限公司 | Relay protection equipment inspection system |
| CN117317990A (en) * | 2023-11-30 | 2023-12-29 | 广东电网有限责任公司中山供电局 | Microcomputer protection method and related device for ac power supply system of transformer substation |
| CN117317990B (en) * | 2023-11-30 | 2024-04-02 | 广东电网有限责任公司中山供电局 | Microcomputer protection method and related device for ac power supply system of transformer substation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105071532A (en) | Transformer station automatic system | |
| CN202166879U (en) | Power intelligent dispatch management system | |
| CN104348254B (en) | Service-oriented monitoring system of electric substation framework | |
| CN105811584B (en) | A kind of conventional substation intellectualized reconstruction method | |
| CN104135068B (en) | A kind of distribution terminal plug and play method based on IEC61850 standard | |
| CN102916407A (en) | Relay protection and fault information management system for regional power grid | |
| CN102157982B (en) | Intelligent terminal for power transformer | |
| CN104037945A (en) | Distribution network automation system | |
| CN102496072A (en) | System for estimating distributive state of intelligent transformer station | |
| CN202997696U (en) | Intelligent distribution network system based on Beidou satellite communication system | |
| CN104753085A (en) | Remote online monitoring system for distributed photovoltaic access | |
| CN204758748U (en) | Cubical switchboard intelligent integrated monitoring devices | |
| CN103944272A (en) | General measuring and control device for transformer substation | |
| CN204615510U (en) | A kind of device based on the automatically-monitored proterctive equipment of comprehensive guarantor | |
| CN101741060A (en) | Demarcation circuit breaker device and remote monitoring method thereof | |
| CN103354055A (en) | Simulating system for simulated training of electricity-consuming network operation | |
| CN102931731A (en) | Integrated intelligent monitoring system applicable to substation direct-current power supply | |
| KR101048496B1 (en) | Remote Power Control System Using Distributed Network Protocol | |
| Arun et al. | Substation automation system | |
| CN102832708B (en) | Intelligent transformer substation based on integrated multi-stage server framework | |
| CN111049873A (en) | Ubiquitous wisdom electric power thing networking systems | |
| CN103326472A (en) | Information sharing and interoperating method for intelligent electrical devices of intelligent substation operation cockpit | |
| CN212483779U (en) | Moulded case circuit breaker device | |
| CN102638106A (en) | Station domain control system based on process layer GOOSE (Generic Object Oriented Substation Event) and implementation method thereof | |
| CN109683571B (en) | Modeling method and device for hydropower station monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151118 |