CN113343446A - Data analysis and verification method and system for transformer substation monitoring system - Google Patents
Data analysis and verification method and system for transformer substation monitoring system Download PDFInfo
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- CN113343446A CN113343446A CN202110568255.8A CN202110568255A CN113343446A CN 113343446 A CN113343446 A CN 113343446A CN 202110568255 A CN202110568255 A CN 202110568255A CN 113343446 A CN113343446 A CN 113343446A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
- H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/02—Reliability analysis or reliability optimisation; Failure analysis, e.g. worst case scenario performance, failure mode and effects analysis [FMEA]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/18—Systems supporting electrical power generation, transmission or distribution using switches, relays or circuit breakers, e.g. intelligent electronic devices [IED]
Abstract
The invention provides a transformer substation monitoring system data analysis and verification method based on an intelligent simulation technology, wherein simulation bay level IED equipment simulates primary equipment of an intelligent transformer substation and sets position information of the primary equipment; acquiring simulation information of IED equipment of a simulation bay level and sending the simulation information to a measurement and control device to be transferred to a station control level of the monitoring system; a monitoring system station control layer receives position state information collected by simulated bay level IED equipment and sends a one-key sequential control instruction; receiving a sequential control instruction issued by a monitoring system station control layer, responding to a command, synchronously shifting the position of the primary simulation equipment and a related analog quantity signal, and outputting a verification test report. The invention also provides a transformer substation monitoring system data analysis and verification system based on the intelligent simulation technology. According to the invention, through an intelligent secondary equipment information model in the holographic simulation transformer substation, high-similarity digital simulation of actual physical secondary equipment is realized, and a function of analyzing and checking data of a monitoring system is completed.
Description
Technical Field
The invention relates to the technical field of transformer substations, in particular to a transformer substation monitoring system data analysis and verification method and system based on an intelligent simulation technology.
Background
The electric power industry is used as an important energy industry foundation in national economic development and relates to various aspects of national civilization. The rapid development of the information era changes the aspects of the society, and in the power industry, a transformer substation monitoring system needs to provide reliable data information for transformer substation work, help a dispatcher to complete daily work, and help operation and maintenance personnel to check and process potential safety hazards possibly existing in a transformer substation. The monitoring system collects a large amount of data, in order to realize friendly human-computer interaction, the collected data needs to be classified, and the visual human-computer interaction of the collected data is realized by editing pictures such as single connection lines of stations, interval charts, network topology diagrams, photon plate diagrams, communication state diagrams, link alarm diagrams and the like and matching with event alarm windows, SOE records and the like; the monitoring system fully utilizes the acquired data and realizes a large amount of data processing and analysis service functions.
The monitoring system faces increasingly complex data acquisition and analysis processing services, a large amount of configuration work is needed, the correctness of the configuration work determines whether each functional module can effectively solve the problem, and the expected target is achieved. The five-prevention logic configuration, the one-key sequential control logic configuration, the monitoring system picture, the application, the database and other configurations are verified by strict and complete testing means, so that the correctness of the configuration work can be ensured, each function and application can be really applied to an actual field, and the expected functions are exerted.
At present, data analysis and verification work of a transformer substation monitoring system is completed by means of operation, transmission and the like of actual primary and secondary equipment seriously, and for the conditions that the conventional data acquisition amount is small and high-grade application is simple, the data analysis and verification configuration correctness of the monitoring system is verified by using the form of an actual equipment trigger signal, but for the conditions of large amount of data acquisition and complex high-grade application, the actual trigger signal mode faces the problems of extremely low efficiency, incomplete test, huge personnel investment and the like.
When the system is complicated, the testing means with the actual device essentially only can be a 'verification test', that is, whether the configuration of the system can realize the corresponding data analysis and operation functions is verified by triggering signals or remote control operation on the actual device, but a 'logic test' is required for realizing the full-scale test on the configuration, logic and the like of the system, that is, on the premise of predicting the logic purpose of the system, the logic of the system is subjected to a detailed targeted test to find the configuration error of the system. "verification tests" are a subset of "logical tests" that, when the contents of verification can be correctly presented, represent that the system can correctly implement functions only under certain conditions of the current verification conditions, but in other cases, the abnormal configuration of the system may cause the functions under certain verification conditions to be unable to be implemented normally.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a substation monitoring system data analysis and verification method and system based on an intelligent simulation technology, and solves the problems of high operation risk of manual conventional tests, incomplete and incomplete conventional tests, low test efficiency and the like.
The technical scheme of the invention is as follows:
the data analysis and verification method for the transformer substation monitoring system comprises the following steps:
simulating interlayer IED equipment to simulate primary equipment of the intelligent substation and setting position information of the primary equipment;
acquiring simulation information of IED equipment of a simulation bay level and sending the simulation information to a measurement and control device to be transferred to a station control level of the monitoring system;
a monitoring system station control layer receives position state information collected by simulated bay level IED equipment and sends a one-key sequential control instruction;
receiving a sequential control instruction issued by a monitoring system station control layer, responding to a command, synchronously shifting the position of the analog primary equipment and a related analog quantity signal, and outputting a verification test report.
The monitoring system station control layer receives position state information acquired by simulating interlayer IED equipment and sends a one-key sequence control instruction; the method specifically comprises the following steps:
configuring an operation ticket and determining an operation step according to the state of the simulated interlayer IED equipment;
carrying out correlation inspection on picture signals of the monitoring system;
and simulating and testing the position auxiliary criterion signal and the special analog quantity signal.
As a further technical solution of the present invention, the configuring and determining an operation ticket according to the state of the IED device at the simulation bay level includes: the operation order is an operation flow among different equipment states, the pre-operation state and the confirmation state of each step in the operation flow include the requirements on double criteria of an operation object, and the operation flow mainly comprises two categories of position signals and monitoring signals, wherein the monitoring signals include control loop monitoring signals, mechanism locking signals, remote local signals, maintenance pressing plate signals, device locking signals and protection tripping signals; configuring an operation ticket, monitoring synchronous ticket adjustment of a testing device when the order control host computer performs ticket adjustment operation, comparing the operation steps of the order control host computer received by the same operation ticket with the operation steps of the testing device, and determining whether the operation steps are correct or not; the testing device can directly simulate the interlayer IED device and receive the remote control command of the sequence control host.
As a further technical scheme of the invention, the picture signal of the monitoring system is subjected to correlation check; the method specifically comprises the following steps: simulating a process level IED equipment trigger signal, and performing correlated inspection on picture signals of a station single-wire, an interval chart, a network topology chart, a photon plate chart, a communication state chart and a link alarm chart of the monitoring system; checking the functions of the alarm information records of the event alarm window and the SOE record; classifying remote signaling signal accidents collected by a monitoring system, alarming when remote sensing data is out of limit, recording remote pulse and remote sensing information reports, and associating remote control operation with returned remote signaling; and the zero sequence current protection logic operation realizes detailed logic check of the small current grounding alarm function and the application.
As a further technical solution of the present invention, the receiving a sequential control command issued by a station control layer of a monitoring system and responding to the command, synchronizing a position of a simulated primary device and a related analog quantity signal sent by a shift unit, and outputting a verification test report specifically includes:
mapping total station switch knife switch control, position and interlocking signals based on the SCD file;
importing a total station anti-misoperation lockout logic rule file, and analyzing and mapping an operation object according to rules;
acquiring the initial state of the position of the switch knife switch of the total station through an access process layer network;
sending a total station GOOSE position signal according to the switch position initial state;
logic judgment is carried out on the linkage locking signals one by one according to the remote control commands of the total station measurement and control device;
if the current operation locking logic is wrong, alarming and returning;
if the operation is correct, the position change is implemented according to the current operation instruction, and a GOOSE message reflecting the position change is sent;
and forming and outputting a test report when the sequence control test is completed.
The method comprises the following steps of importing a total station anti-misoperation lockout logic rule file, analyzing according to rules and mapping an operation object; the method specifically comprises the following steps: and identifying a total station anti-misoperation lockout logic rule file through a main wiring topological graph/anti-misoperation logic rule text in the intelligent anti-misoperation system, automatically performing logic verification, checking whether the intelligent anti-misoperation logic is correct, and analyzing and mapping an operation object according to the rule.
As a further technical scheme of the invention, the picture signal of the monitoring system is subjected to correlation check; the method specifically comprises the following steps: simulating a process level IED equipment trigger signal, and performing correlated inspection on picture signals of a station single-wire, an interval chart, a network topology chart, a photon plate chart, a communication state chart and a link alarm chart of the monitoring system; checking the functions of the alarm information records of the event alarm window and the SOE record; classifying remote signaling signal accidents collected by a monitoring system, alarming when remote sensing data is out of limit, recording remote pulse and remote sensing information reports, and associating remote control operation with returned remote signaling; and the zero sequence current protection logic operation realizes detailed logic check of the small current grounding alarm function and the application.
The method comprises the following steps of obtaining simulation information of the IED equipment of the simulation bay level and sending the simulation information to a measurement and control device to be transferred to a station control level of the monitoring system; the method specifically comprises the following steps: obtaining GOOSE signals of the positions of a circuit breaker, a disconnecting link and a ground switch of the simulated bay level IED equipment, sending voltage and current SV signals of all the bay merging units to a measurement and control device, transmitting the remote control and interlocking GOOSE signals to a station control layer by the measurement and control device, and actually receiving MMS messages of a monitoring system by the measurement and control device.
The invention also provides a data analysis and verification system of the transformer substation monitoring system, which comprises the following components:
the equipment simulation unit is used for simulating the interlayer IED equipment to simulate the primary equipment of the intelligent substation and setting the position information of the primary equipment;
the signal acquisition unit is used for acquiring simulation information of the IED equipment on the simulation spacer layer and sending the simulation information to the measurement and control device to be transferred to a monitoring system station control layer;
the monitoring system station control layer receives position state information acquired by the simulated bay level IED equipment and sends a one-key sequence control instruction;
and the analysis and verification unit is used for receiving the sequence control instruction issued by the monitoring system station control layer, responding to the command, synchronously transforming the position of the analog primary equipment and the related analog quantity signal sent upwards, and outputting a verification test report.
The invention has the beneficial effects that:
1. according to the invention, through an intelligent secondary equipment information model in the holographic simulation transformer substation, the high-similarity digital simulation of actual physical secondary equipment is realized in a mode of MMS simulation and GOOSE and SV simulation, actual data can be truly simulated, the communication between the actual secondary equipment and a monitoring system is replaced, and the function of analyzing and checking the data of the monitoring system is completed.
2. Providing an intelligent simulation test technology which is separated from primary equipment and an actual device, and completing the analysis and verification of the data of the transformer substation monitoring system in a simulation mode;
3. a simulation test method for one-key sequence control is provided, and full logic verification of one-key sequence control equipment state, operation order and locking logic is realized.
4. A simulation test method for five-prevention logic is provided, and full logic verification of a five-prevention system based on an independent wiring topological graph and an anti-error logic configuration file is achieved.
Drawings
Fig. 1 is a flow chart of a data analysis and verification method for a substation monitoring system according to the present invention;
FIG. 2 is a diagram of an IED device structure of a simulation bay level according to the present invention;
FIG. 3 is a diagram of a simulated process layer device architecture in accordance with the present invention;
FIG. 4 is a schematic diagram of an interval one-key sequential control test flow proposed by the present invention;
FIG. 5 is a schematic diagram of an anti-misoperation test process proposed in the present invention;
FIG. 6 is a schematic diagram of a typical bay circuit of a 220kv substation according to an embodiment of the present invention;
FIG. 7 is a logic diagram illustrating isolation switch operation according to one embodiment of the present invention;
fig. 8 is a structural diagram of a data analysis and verification system of a substation monitoring system according to the present invention.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.
Referring to fig. 1 to 3, the data analysis and verification method for the substation monitoring system includes the following steps:
101, simulating interlayer IED equipment to simulate primary equipment of an intelligent substation and setting position information of the primary equipment;
102, acquiring simulation information of IED equipment on a simulation spacer layer, sending the simulation information to a measurement and control device, and transferring the simulation information to a station control layer of a monitoring system;
103, a monitoring system station control layer receives position state information acquired by simulating interlayer IED equipment and sends a one-key sequence control instruction;
and 104, receiving a sequential control instruction issued by a monitoring system station control layer, responding to a command, synchronously shifting the position of the analog primary equipment and a related analog quantity signal sent by the monitoring system station control layer, and outputting a verification test report.
In the embodiment of the invention, the position of the switch disconnecting link of the analog intelligent substation is uploaded to a measurement and control by an intelligent terminal through a digital GOOSE signal and then is uploaded to a monitoring system through an MMS signal, the digital GOOSE/MMS signal is simulated by a computer program, the state of primary equipment can be simulated and simulated through simulating different GOOSE/MMS signal combinations, in addition, analog quantity information is acquired through a merging unit and is transmitted to a measurement and control device through SV signals to be transferred to the monitoring system, the analog quantity is transmitted by an SV through simulation of the computer program, and the simulation of the analog quantity is realized by simulating the MMS message of the measurement and control device. And the simulation receiving MMS remote control command layer simulates and receives the remote control command issued by the monitoring system and responds to the command, and synchronously shifts the position of the primary equipment and the related analog quantity signal sent by the monitoring system, thereby achieving the effect of simulating the monitoring system to remotely control the primary equipment. Therefore, primary equipment can be eliminated in the test process, and the mounting monitoring data analysis and verification system can realize intelligent simulation test on the primary equipment.
In the embodiment of the invention, a station control layer of a monitoring system receives position state information acquired by simulated bay layer IED equipment and sends a one-key sequence control instruction; the method specifically comprises the following steps:
configuring an operation ticket and determining an operation step according to the state of the simulated interlayer IED equipment;
carrying out correlation inspection on picture signals of the monitoring system;
and simulating and testing the position auxiliary criterion signal and the special analog quantity signal.
Wherein, still include: and performing sequence control preview and intelligent anti-error preview, previewing the operation order steps, failing preview when the actual result of the preview does not correspond to the expected result, failing to pass when the operation steps are wrong and the operation flow contradicts the intelligent anti-error logic, and stopping execution of sequence control at the moment.
Configuring an operation ticket and determining operation steps according to the state of IED equipment at the simulation space layer, wherein the operation ticket comprises the following steps: the operation order is an operation flow among different equipment states, the pre-operation state and the confirmation state of each step in the operation flow include the requirements on double criteria of an operation object, and the operation flow mainly comprises two categories of position signals and monitoring signals, wherein the monitoring signals include control loop monitoring signals, mechanism locking signals, remote local signals, maintenance pressing plate signals, device locking signals and protection tripping signals; configuring an operation ticket, monitoring the synchronous ticket of a testing device when the order control host computer carries out ticket dispatching operation, comparing the operation steps of the order control host computer received by the same operation ticket with the operation steps of the testing device, and determining whether the operation steps are correct or not; the testing device can directly simulate the interlayer IED device and receive the remote control command of the sequence control host.
In the embodiment of the present invention, the correlation check of the picture signal of the monitoring system specifically includes: simulating a process level IED equipment trigger signal, and carrying out correlation inspection on picture signals of a station single-wiring, an interval chart, a network topology chart, a photon board chart, a communication state chart and a link alarm chart of the monitoring system; checking the functions of the alarm information records of the event alarm window and the SOE record; classifying remote signaling signal accidents collected by a monitoring system, alarming when remote sensing data is out of limit, recording remote pulse and remote sensing information reports, and associating remote control operation with returned remote signaling; and the zero sequence current protection logic operation realizes the detailed logic check of the small current grounding alarm function and the application.
In the embodiment of the invention, the simulated interlayer IED equipment is collected through the simulated process layer IED equipment and is transmitted to the measurement and control device through SV signals to be transferred to the station control layer; the method specifically comprises the following steps: the simulation process layer equipment collects GOOSE signals of the positions of a breaker, a disconnecting link and a grounding switch of each interval intelligent terminal, collects voltage and current SV signals of the MU, and meanwhile, the measurement and control device receives MMS messages of the monitoring system and sends remote control and interlocking GOOSE signals to the intelligent terminal.
The detailed logic verification of each equipment state and the operation ticket of the standard operation ticket specifically comprises the following steps: each equipment state of the standard operation ticket specifically comprises a pre-operation state and a confirmation state of each step in each equipment state, wherein the confirmation state comprises a position signal and a monitoring signal; the method comprises the following steps: firstly, configuring an operation ticket, synchronously monitoring the ticket when the sequential control host computer carries out ticket regulation operation, comparing the operation steps of the sequential control host computer received by the same operation ticket with the operation steps of the test device, and determining whether the operation steps are correct.
The method comprises the steps that equipment state testing is carried out on one-key sequence control through logic and programs preset in a monitoring data analysis and verification system, all equipment state possibilities are shown in an exhaustive form through simulating one-time equipment state, and logic configuration of the one-key sequence control equipment state is verified; and then testing the one-key sequence control operation order, configuring an operation order in advance in a monitoring data analysis and verification system, monitoring synchronous ticket dispatching of the testing system when the sequence control host computer conducts ticket dispatching operation, comparing the two operation orders to determine whether the operation steps are correct, and simulating one-time equipment remote control displacement and signal feedback by the testing system so as to be convenient for one-key sequence control to conduct actual operation flow testing.
Importing a total station anti-misoperation lockout logic rule file, and analyzing and mapping an operation object according to rules; the method specifically comprises the following steps: and identifying the total station anti-misoperation lockout logic rule file through a main wiring topological graph/anti-misoperation logic rule text in the intelligent anti-misoperation system, automatically performing logic verification, checking whether the intelligent anti-misoperation logic is correct, and analyzing and mapping an operation object according to the rule.
Carrying out correlation inspection on picture signals of the monitoring system; the method specifically comprises the following steps: simulating an IED equipment triggering signal at a process level, and carrying out correlation inspection on picture signals of a station single-wiring, an interval chart, a network topology chart, a photon board chart, a communication state chart and a link alarm chart of the monitoring system; checking the functions of the alarm information records of the event alarm window and the SOE record; classifying remote signaling signal accidents collected by a monitoring system, alarming when remote sensing data is out of limit, recording remote pulse and remote sensing information reports, and associating remote control operation with returned remote signaling; and the zero sequence current protection logic operation realizes the detailed logic check of the small current grounding alarm function and the application.
The monitoring and controlling device of the bay level collects GOOSE signals of the positions of a breaker, a disconnecting link and a grounding switch of each bay intelligent terminal, collects SV signals of voltage and current of MU, receives MMS messages of a monitoring system, and sends remote control and interlocking GOOSE signals to the intelligent terminal.
Through a main wiring topological graph or an anti-error logic rule text in the intelligent anti-error system, the monitoring data analysis and verification system identifies the anti-error logic of the intelligent anti-error system, automatically performs logic verification, and checks whether the logic of the intelligent anti-error system is correct.
By simulating the trigger signal of the IED equipment on the station control layer or the process layer through the intelligent simulation system, the correlation inspection of the picture signals such as a single-connection line, an interval chart, a network topological graph, a photon plate graph, a communication state graph, a link alarm graph and the like of a station of the monitoring system is realized, the function inspection of alarm information records such as an event alarm window, an SOE record and the like is realized, the classification of remote signaling signal accidents collected by the monitoring system, the alarm of remote sensing data exceeding the limit, the record of remote pulses and remote measurement information reports, the correlation of remote control operation and returned remote signaling is realized, the zero-sequence current logic operation is protected, the detailed logic inspection of the functions and the application of the small-current grounding alarm and the like is realized, and a complete test report is provided.
In practical application, the integrated monitoring system of the intelligent substation acquires GOOSE signals of the positions of a breaker, a disconnecting link and a ground switch of each interval intelligent terminal through the measurement and control device of the interval layer, acquires voltage and current SV signals of an MU, and simultaneously the measurement and control device receives MMS messages of the monitoring system and sends remote control and interlocking GOOSE signals to the intelligent terminal. The data analysis and verification system for the substation monitoring system provided by the embodiment of the invention specifically aims to send mms signals to the sequence control host through simulating the IED equipment at the total station spacer layer without simulating the process layer equipment in a test scene of primary peripheral waves and an actual device. The testing device can simulate a certain equipment state according to the logic one key on a set equipment state interface, can flexibly select a certain signal for setting, and judges whether the equipment state logic of the sequence control host is correct or not by comparing the equipment state states of the primary equipment corresponding to the sequence control host and the testing device. The test is completed through the permutation and combination verification of different equipment states and signal states, the exhaustive test is completed, the test report is generated, if the equipment state remote signal can be obtained through the communication with the sequence control host, the test of the equipment state of the total station can be automatically completed, and the test time can be greatly reduced.
In the embodiment of the invention, the testing device can simulate the all-station process level IED equipment and send the goose signals to the bay level IED, at this time, the bay level equipment does not need to be simulated, if only the process level IED is simulated, part of signals can not be simulated and need to be triggered from the bay level IED, and because only the process level equipment is simulated, all signals in an equipment state cannot be completely contained, the equipment state testing in the mode needs manual testing.
In the embodiment of the invention, the interlocking test is also included, and whether the interval five-prevention logic in the measurement and control device is correct or not is verified by comparing the received measurement and control remote control permission signal with the internally calculated interval five-prevention logic condition according to the pre-configuration of the interval five-prevention logic. The interlocking test can verify whether the interval five-prevention logic in the measurement and control device is correct or not by comparing the received measurement and control remote control permission signal with the internally calculated interval five-prevention logic condition according to the pre-configuration of the interval five-prevention logic.
In the embodiment of the invention, a one-key sequence control test is used for setting a substation system fixed value, importing a total station SCD file and a pre-made main wiring diagram (which can be flexibly adjusted), finding an interval to be mapped, associating a position signal of a breaker disconnecting link with a special criterion signal, compiling an interval interlocking logic, setting related parameters of GOOSE/SV, and performing sequence control test.
Referring to fig. 4, mapping a total station switch knife switch control, position, linkage locking signal based on an SCD file, importing a total station mis-locking prevention logic rule file, analyzing according to a rule and mapping an operation object, setting a total station switch, and obtaining a switch position initial state or accessing a process layer network; sending a total station GOOSE position signal according to the initial state of the switch position, carrying out sequential control operation, and carrying out logic judgment according to remote control commands of a total station measurement and control device or a measurement and protection integrated device one by one and a blocking signal; when the current operation anti-misoperation lockout logic is incorrect, alarming and returning are carried out; when the current operation anti-misoperation lockout logic is correct, implementing deflection according to the current operation instruction, and sending a GOOSE message reflecting position change; and sequentially carrying out sequential control tests, and normally finishing the tests after the tests are finished.
The detailed logic verification of each equipment state and operation order of the one-key sequential control standard operation order specifically comprises the following steps: the pre-operation state and the confirmation state of each step in each equipment state comprise requirements on dual criteria of an operation object, and comprise a position signal and a monitoring signal, and the monitoring signal meets a preset condition and a specific equipment state. The monitoring signals comprise control loop monitoring signals, mechanism locking signals, remote local signals, maintenance pressing plate signals, device locking signals and protection tripping signals.
The operation ticket is the core content of one-key sequential control, reflects the operation flow among different equipment states, and the pre-operation state and the confirmation state of each step in the operation flow comprise the requirements on the double criteria of an operation object. The device mainly comprises two categories of position signals and monitoring signals, wherein the monitoring signals comprise control loop monitoring signals, mechanism locking signals, remote local signals, maintenance pressing plate signals, device locking signals, protection tripping signals and the like, and the signals can meet specific equipment states only when preset conditions are met. The equipment state is a precondition for performing one-key sequential control operation, and if the initial equipment state is not satisfied, an operation ticket cannot be called, and a subsequent sequential control operation flow cannot be performed.
Operation ticket testing process: firstly, configuring an operation ticket, synchronously monitoring the ticket when the sequential control host computer carries out ticket regulation operation, comparing the operation steps of the sequential control host computer received by the same operation ticket with the operation steps of the test device, and determining whether the operation steps are correct.
In the embodiment of the invention, the testing device can directly simulate the interlayer IED device, receive the remote control instruction of the sequence control host, simulate the process-level IED equipment for the digital station and receive the remote control instruction of measurement and control, and can receive the outlet signal of measurement and control and simulate the deflection feedback measurement and control when the measurement and control test is carried out on the conventional station.
In the embodiment of the present invention, a one-key sequence control test is performed according to the state of the IED device at the simulation bay level, which is acquired by the simulation process level, and the method further includes: and performing sequence control preview and intelligent anti-error preview, previewing the operation order steps, failing to preview when the preview has a phenomenon that an actual result does not correspond to an expected result, failing to preview when the operation steps are wrong and an operation flow which is in conflict with intelligent anti-error logic appears, and stopping execution of sequence control at the moment.
The method comprises the steps of performing sequence control rehearsal and intelligent error prevention rehearsal on all operation steps before operation starts, wherein if the operation steps are wrong, the rehearsal can cause the phenomenon that an actual result is not corresponding to an expected result, so that the rehearsal fails, if the operation steps are wrong, the intelligent error prevention rehearsal cannot pass when an operation flow which is in contradiction with intelligent error prevention logic occurs, and the errors can terminate sequence control execution in advance.
The sequence control host needs to judge the pre-operation condition when each step of operation is carried out after preview, the intelligent error prevention needs to judge whether each step meets the error prevention logic, the operation can be carried out only if the step meets the error prevention logic, and whether the interval five prevention of measurement and control meets the requirement before the operation is carried out is judged. After the operation is finished, the state of the double-criterion confirmation needs to be judged to judge whether the execution is successful. The preview step of the sequence control operation flow is to perform primary self-check on the sequence control self configuration, perform secondary check again by intelligent error prevention without participation of a test device, and the test device needs to simulate and test subsequent operation flows, pre-operation states and confirmation states to determine whether the sequence control configuration operation order is correct or not, determine whether the operation flows can be normally executed or not, and determine whether the pre-operation states and the confirmation state logics are correct or not through the condition that the simulation part is not satisfied.
In the embodiment of the present invention, simulating and testing the position auxiliary criterion signal and the special analog quantity signal specifically includes: and receiving a GOOSE remote control command during coarse operation simulation, performing simulation action on the position signal, and simultaneously feeding back second judgment data, wherein the second judgment data comprises current and voltage change of circuit breaker operation, an electrified display signal, a pressure sensor of a disconnecting link, attitude sensing, magnetic induction sensing, microswitch sensing, a fixed value switching area of a secondary operation ticket and switching-on and switching-off operation of a protective soft pressing plate.
In the embodiment of the invention, the simulation and test of the special signals (the position auxiliary criterion signal and the special analog quantity signal) are realized, particularly, the simulation position is simpler for the test of the pre-operation state and the confirmation state, and the key point is the simulation of the second criterion of different types. The requirement of defining the equipment state cannot be met by only simulating the position signal, and actually, many monitoring signals need to be simulated, and part of signals cannot be simulated through the goose of the intelligent terminal, and the position signal is only part of the equipment state. And receiving a goose remote control command during simulation operation, performing simulation action on the position signal, feeding back second judgment data lacking one-key sequential control requirements, such as current and voltage change of circuit breaker operation, an electrified display signal, pressure sensing, posture sensing, magnetic induction sensing, microswitch sensing and the like of a disconnecting link, and failing to simulate and test operations of a fixed value switching area, protection soft pressing plate switching and the like of a secondary operation ticket.
The second criterion of the circuit breaker can be current voltage or an electrified display signal, and the general line voltage may only have a single phase, so that the transformation and installation of a three-phase electrified display are required to replace PT. The current and voltage under the test condition with measurement and control can be realized by simulating a process layer sv for a digital station, and an analog quantity needs to be actually triggered for a conventional station; the current and voltage can be directly simulated under the condition of simulating measurement and control. If the live display is used, the signal of the live display can be that an auxiliary node is connected to a measurement and control standby switch, or can be directly communicated with a sequential control host through a 61850 protocol, if the signal is in the form of an auxiliary contact, the measurement and control test needs the test device to simulate and output a signal node for measurement and control, the measurement and control simulation directly sends out the signal node during the simulation and control, and if the signal is communicated through the 61850 protocol, the test device directly simulates and outputs a digital signal. The second judgment data of the disconnecting link is of various types, such as pressure sensing, attitude sensing, magnetic induction sensing, microswitch sensing and the like, generally, signals of the sensors are firstly transmitted to a receiving device through 485 and then transmitted to a sequence control host through 61850 communication of the receiving device, or similarly, signals of a hard contact are output by a live display (the disconnecting link has more signals, generally, the disconnecting link may not be opened for standby as much as possible, and the hard contact signals cannot be directly transmitted). If the 61850 communication mode is adopted, the test device can be used for direct simulation, if the hard contact is connected to the measurement and control, the test device is required to simulate and output the hard contact when the measurement and control test is carried out, signals can be directly simulated when the measurement and control test is simulated, if the hard contact is connected to the intelligent terminal, the test device is required to simulate and output goose signals when the measurement and control test is carried out, and signals can be directly simulated when the measurement and control test is simulated.
The main wiring topological graph carries out automatic logic verification, and the method specifically comprises the following steps: automatically checking five-prevention logic based on the main wiring topological graph, and checking the five-prevention logic into an automatic analysis logic text by a five-prevention logic txt template to generate a logic relationship; the built-in five-prevention logic rule base is formed by adopting the idea of topology five prevention; wherein the five-prevention topology comprises:
(1) electrical island: a set of connected electrical devices in the substation;
(2) a grounding island: if the grounding isolating switch is in the on position in the electric island, the electric island is a grounding island;
(3) a live island: if equipment such as a generator or an equivalent power supply exists in the electric island, the electric island is a live island;
(4) a communicating branch: the node at one end of the electrical equipment is communicated with the node at the other end by a path which is called a communication branch.
(5) The switch is communicated with the branch circuit: the node at one end of the electrical equipment is communicated with the node at the other end of the electrical equipment through a path, and the path contains one and only one switching equipment, so that the communication branch is called a switch communication branch.
In the embodiment of the invention, the five-prevention topology verification rule in the test method is formulated facing engineering application and comprises the following steps:
(1) switching topology principle: at present, in a transformer substation operation site, in order to carry out a secondary system on-off brake transmission test with a switch, the switch is generally not subjected to operation logic limitation.
(2) Topological rule of the isolating switch: when the isolating switch operates, any one of two ends of the isolating switch does not belong to the grounding island. Searching along any end, wherein the ground island cannot be searched, and the searched boundary is the tail end of a separate isolating switch or line; for a switch (breaker), the switch (breaker) is regarded as straight-through during searching because no obvious breaking point exists; when the electrical coupling search is carried out between two windings of the transformer, the transformer is regarded as straight-through; when any switch (breaker) directly connected with the disconnecting switch is in a closed position, the disconnecting switch is not allowed to operate; the two ends of the isolating switch are switch communication branches, and the isolating switch allows operation (searching along one end can find a path to the other end of the isolating switch, and the path includes only one switch); the switch (breaker) is in the same position as the current flowing through the switch (breaker) is three-phase and no current.
(3) The grounding disconnecting link topological rule is as follows: if the non-grounding end of the grounding isolation switch is a live island, operation is forbidden, and the isolation switch adjacent to the non-grounding end is searched and is divided into bits; for a switch (breaker), the switch (breaker) is regarded as straight-through during searching because no obvious breaking point exists; when the electrical coupling search is carried out between two windings of the transformer, the windings are regarded as straight-through; for the tail end of the line, the line can be regarded as a dead island under the condition of no three-phase pressure; judging whether the bus voltage change is zero or not in the bus grounding switch operation; the operation of the main transformer grounding switch is to judge that each side of the main transformer is not pressurized.
Taking a 220kV double-bus outgoing line interval test as an example, as shown in fig. 5, the outgoing line interval includes one switch, 3 disconnecting switches and 3 grounding switches. According to the above topology five-prevention rule, the operation logic of the bus disconnecting switch 20011 should be as shown in fig. 7. The logic rule is dynamically generated, the topological relation of each switch and each disconnecting link is automatically searched according to the test interval, and the generated logic rule can be output as a part of a test report.
The invention simulates the IED equipment of the total station spacer layer through the monitoring data analysis and verification system, sends the MMS message to the monitoring system, carries out simulated displacement on the monitoring data of the monitoring system and is used for checking whether the data displayed by the monitoring system is normal or not. Meanwhile, the system can receive an MMS remote control command of the monitoring system, respond to the remote control command and change the position signal of the primary equipment so as to check whether the remote control function of the monitoring system is normal.
For example, a simulation test is performed on a certain 220kV line interval:
the monitoring data analysis and verification system can be connected to the monitoring host, and after the SCD is configured in the monitoring data analysis and verification system,
(1) and simulating the position signal of the primary equipment to check whether the position signal of the monitoring picture is correct.
(2) And (4) simulating telemetering measurement, filling telemetering quantity to be simulated in the monitoring data analysis and verification system, and checking and verifying whether the displayed telemetering quantity is consistent with the telemetering quantity sent by the test on a monitoring picture.
(3) And simulating the switching value and the protection soft message, and checking and verifying whether the displayed light word plate is correct or not on a monitoring picture by triggering the switching value of the measurement and control device in the monitoring data analysis and verification system and the soft message of the protection device.
(4) Simulating the remote control of the primary equipment. The monitoring system remotely controls the primary equipment at the interval, the remote control command is sent to the monitoring data analysis and verification system, the remote control command is responded, the remote control response message and the primary equipment position signal output by change are sent in a reverse correction mode, and the monitoring system receives the reverse correction message and the changed primary equipment position signal and considers that the remote control is successful.
Referring to fig. 7, the present invention further provides a data analysis and verification system for a substation monitoring system, including:
the equipment simulation unit 201 is used for simulating interlayer IED equipment to simulate primary equipment of the intelligent substation and setting position information of the primary equipment;
the signal acquisition unit 202 is used for acquiring simulation information of the IED equipment on the simulation bay level and sending the simulation information to the measurement and control device to be transferred to the station control level of the monitoring system;
the monitoring system station control layer receives position state information acquired by the simulated bay level IED equipment and sends a one-key sequence control instruction;
and the analysis and verification unit 204 is used for receiving a sequential control instruction issued by a monitoring system station control layer, responding to the command, synchronously shifting the position of the analog primary equipment and the related analog quantity signal sent by the analog primary equipment, and outputting a verification test report.
The monitoring data analysis and verification system provided by the project can simulate and send GOOSE and SV messages or MMS messages of a station control layer, simulate and receive remote control commands and simulate actual primary equipment. And comprehensively and automatically checking the in-station system through internal preset logic. Fundamentally solves the problem that conventional test acceptance lacks effective technological means, realizes high efficiency, high quality test and acceptance to the in-station system, stops the potential safety hazard that the test is not in place probably exists, and the maximize realizes economic nature, security and the benefit that efficiency promotion that test technique brought for transformer substation's switching operation, switching substation equipment. In addition, the complex logic of the transformer substation can be automatically tested, various conditions can be traversed as much as possible, the operation correctness after commissioning is guaranteed, the power failure time and potential safety hazards are reduced, and great economic benefits are generated.
The national power grid company is used as a power supply enterprise to popularize the monitoring data analysis and verification system, can upgrade conventional testing means of stock transformer stations and newly built stations, is beneficial to popularization of new technologies and new systems, and improves the digitization level of transformer station testing. Through monitoring data analysis and verification system, the safety of operation or maintenance operation of the transformer substation is improved, personal safety accidents are avoided, manual operation is replaced by automatic operation, personal safety risks are reduced, construction of a harmonious and stable social environment is facilitated, and important social benefits are achieved.
The national degree of importance for scientific and technological innovation and digital Chinese work is higher and higher. Various industries strive to develop ideas and promote scientific innovation and concrete implementation of digital Chinese work. This project research achievement monitoring data analysis check-up system accords with the national advocates as the important measure of transformer substation promotion test level, has wide popularization prospect and profound meaning.
The research and the popularization and the application of the simulation test technology change the traditional debugging means, and replace the traditional verification test means with a more scientific logic test means, so that the test technology is more perfect.
The method gets rid of actual primary and secondary equipment, can simulate the primary and secondary equipment on a digital level, provides a new method for debugging, operation and maintenance and overhaul of a transformer substation monitoring system, enables basic technicians to correctly and reasonably use testing tools in the processes of construction, acceptance, operation and maintenance and extension of the intelligent transformer substation, and provides powerful technical support for ensuring stable and reliable operation of the intelligent transformer substation.
The present invention has been described in detail, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art. Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (9)
1. The data analysis and verification method for the transformer substation monitoring system is characterized by comprising the following steps of:
simulating interlayer IED equipment to simulate primary equipment of the intelligent substation and setting position information of the primary equipment;
acquiring simulation information of IED equipment of a simulation bay level and sending the simulation information to a measurement and control device to be transferred to a station control level of the monitoring system;
a monitoring system station control layer receives position state information collected by simulated bay level IED equipment and sends a one-key sequential control instruction;
receiving a sequential control instruction issued by a monitoring system station control layer, responding to a command, synchronously shifting the position of the primary simulation equipment and a related analog quantity signal, and outputting a verification test report.
2. The method according to claim 1, wherein the monitoring system station control layer receives position state information collected by simulated bay level IED equipment and sends a one-key sequence control instruction; the method specifically comprises the following steps:
configuring an operation ticket and determining an operation step according to the state of the simulated interlayer IED equipment;
carrying out correlation inspection on picture signals of the monitoring system;
and simulating and testing the position auxiliary criterion signal and the special analog quantity signal.
3. The method of claim 2, wherein configuring and determining the operation ticket based on the simulated bay level IED device status comprises:
the operation order is an operation flow among different equipment states, the pre-operation state and the confirmation state of each step in the operation flow include the requirements on double criteria of an operation object, and the operation flow mainly comprises two categories of position signals and monitoring signals, wherein the monitoring signals include control loop monitoring signals, mechanism locking signals, remote local signals, maintenance pressing plate signals, device locking signals and protection tripping signals; configuring an operation ticket, monitoring synchronous ticket adjustment of a testing device when the order control host computer performs ticket adjustment operation, comparing the operation steps of the order control host computer received by the same operation ticket with the operation steps of the testing device, and determining whether the operation steps are correct or not; the testing device can directly simulate the interlayer IED device and receive the remote control command of the sequence control host.
4. The method according to claim 2, wherein the correlation check is performed on the picture signal of the monitoring system; the method specifically comprises the following steps: simulating a process level IED equipment trigger signal, and carrying out correlation inspection on picture signals of a station single-wiring, an interval chart, a network topology chart, a photon board chart, a communication state chart and a link alarm chart of the monitoring system; checking the functions of the alarm information records of the event alarm window and the SOE record; classifying remote signaling signal accidents collected by a monitoring system, alarming when remote sensing data is out of limit, recording remote pulse and remote sensing information reports, and associating remote control operation with returned remote signaling; and the zero sequence current protection logic operation realizes the detailed logic check of the small current grounding alarm function and the application.
5. The method according to claim 1, wherein the receiving of the sequence control command issued by the monitoring system station control layer and the response command, the synchronizing of the simulated primary equipment position and the related analog quantity signal sent by the shift, and the outputting of the verification test report specifically include:
mapping total station switch knife switch control, position and interlocking signals based on the SCD file;
importing a total station anti-misoperation lockout logic rule file, and analyzing and mapping an operation object according to rules;
acquiring the initial state of the position of the switch knife switch of the total station through an access process layer network;
sending a total station GOOSE position signal according to the switch position initial state;
logic judgment is carried out on the linkage locking signals one by one according to the remote control commands of the total station measurement and control device;
if the current operation locking logic is wrong, alarming and returning;
if the operation is correct, the position change is implemented according to the current operation instruction, and a GOOSE message reflecting the position change is sent;
and forming and outputting a test report when the sequence control test is completed.
6. The method according to claim 4, wherein the total station anti-misoperation lockout logic rule file is imported, and the analysis and the operation object mapping are carried out according to the rule; the method specifically comprises the following steps: and identifying a total station anti-misoperation lockout logic rule file through a main wiring topological graph/anti-misoperation logic rule text in the intelligent anti-misoperation system, automatically performing logic verification, checking whether the intelligent anti-misoperation logic is correct, and analyzing and mapping an operation object according to the rule.
7. The method according to claim 4, wherein the correlation check is performed on the picture signal of the monitoring system; the method specifically comprises the following steps: simulating a process level IED equipment trigger signal, and carrying out correlation inspection on picture signals of a station single-wiring, an interval chart, a network topology chart, a photon board chart, a communication state chart and a link alarm chart of the monitoring system; checking the functions of the alarm information records of the event alarm window and the SOE record; classifying remote signaling signal accidents collected by a monitoring system, alarming when remote sensing data is out of limit, recording remote pulse and remote sensing information reports, and associating remote control operation with returned remote signaling; and the zero sequence current protection logic operation realizes the detailed logic check of the small current grounding alarm function and the application.
8. The method according to claim 1, characterized in that simulation information of the simulated bay level IED equipment is obtained and sent to a measurement and control device to be transferred to a monitoring system station control level; the method specifically comprises the following steps: obtaining GOOSE signals of positions of a breaker, a disconnecting link and a ground switch of simulated bay level IED equipment, sending voltage and current SV signals of each bay merging unit to a measurement and control device, transmitting remote control and interlocking GOOSE signals to a station control layer by the measurement and control device, and actually receiving MMS messages of a monitoring system by the measurement and control device.
9. The substation monitoring system data analysis and verification system is realized by the method of any one of claims 1 to 9, and comprises the following steps:
the equipment simulation unit is used for simulating the interlayer IED equipment to simulate the primary equipment of the intelligent substation and setting the position information of the primary equipment;
the signal acquisition unit is used for acquiring simulation information of the IED equipment on the simulation spacer layer and sending the simulation information to the measurement and control device to be transferred to a monitoring system station control layer;
the monitoring system station control layer receives position state information acquired by the simulated bay level IED equipment and sends a one-key sequence control instruction;
and the analysis and verification unit is used for receiving the sequence control instruction issued by the monitoring system station control layer, responding to the command, synchronously shifting the position of the analog primary equipment and the related analog quantity signal sent by the analog primary equipment, and outputting a verification test report.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114019278A (en) * | 2021-11-02 | 2022-02-08 | 国网重庆市电力公司电力科学研究院 | One-key sequence control automatic acceptance method and system |
| CN116132343A (en) * | 2023-02-13 | 2023-05-16 | 国网四川省电力公司电力科学研究院 | Online monitoring terminal simulation test system and method for primary equipment of intelligent substation |
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