CN117294004B - Intelligent identification system and method for relay protection operation mode of transformer substation - Google Patents
Intelligent identification system and method for relay protection operation mode of transformer substation Download PDFInfo
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- CN117294004B CN117294004B CN202311180306.5A CN202311180306A CN117294004B CN 117294004 B CN117294004 B CN 117294004B CN 202311180306 A CN202311180306 A CN 202311180306A CN 117294004 B CN117294004 B CN 117294004B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 36
- 238000012545 processing Methods 0.000 claims abstract description 27
- 238000007781 pre-processing Methods 0.000 claims abstract description 4
- 241000272814 Anser sp. Species 0.000 claims description 66
- 238000004891 communication Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims description 2
- 238000007689 inspection Methods 0.000 abstract description 12
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
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Classifications
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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
- H02J13/00001—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 the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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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
- H02J13/00034—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 an electric power substation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention relates to the technical field of relay protection, in particular to an intelligent distinguishing system and method for a relay protection operation mode of a transformer substation, wherein the intelligent distinguishing system is installed and operated on a relay protection integrated intelligent management and control platform and is used for distinguishing the protection operation mode of a transformer substation circuit and a transformer, and the intelligent distinguishing system comprises: the data processing unit is used for receiving the monitoring data of the on-line monitoring terminal on the transformer station circuit and the transformer, and preprocessing the received monitoring data to form a judging signal. According to the invention, the signal receiver corresponding to the pressing plate in different operation states is electrified to work, the detection signal sent by the signal generator is received by the signal receiver in the electrified operation state, and the detection signal is timely fed back by the signal feedback module and is intensively displayed on the display, so that inspection personnel can learn various pressing plate operation conditions at a glance, and convenience is provided for inspection work.
Description
Technical Field
The invention relates to the technical field of relay protection, in particular to an intelligent distinguishing system and method for a relay protection operation mode of a transformer substation.
Background
The operation and maintenance work of the transformer substation mainly depends on a manual mode to distinguish the protection function and the state of the loop pressing plate, and the switching and returning state confirmation of the pressing plate also completely depends on the manual mode. With the development of secondary technology, the pressing plate of the relay protection device shows integrated composivity in function, the layout mode of the pressing plate is gradually changed into simplified standardization, and conditions are objectively provided for intelligent transformation of the inspection and operation and maintenance modes. However, during inspection, the real-time running state of the pressing plates needs to be checked manually to check the specific running state of each pressing plate, so that certain trouble is brought to inspection work.
Disclosure of Invention
The invention aims to provide an intelligent distinguishing system and method for relay protection operation modes of a transformer substation, which are used for solving the problem that the real-time operation states of pressing plates are required to be checked manually and respectively during inspection, so that certain trouble is brought to inspection work.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a system is discerned to transformer substation relay protection running mode intelligence, intelligence discerns system installation operation in relay protection integration intelligent management and control platform for discern transformer substation circuit and transformer protection running mode, intelligent discernment system includes:
the data processing unit is used for receiving monitoring data of the on-line monitoring terminal on the transformer station circuit and the transformer, and preprocessing the received monitoring data to form a judging signal;
the logic analysis judging unit is used for judging and identifying the type of the station, wherein the type of the station comprises a conventional station and an intelligent station, receiving judging signals from the data unit, and carrying out logic analysis on a transformer station circuit and a transformer protection operation mode according to the judging signals to form a protection judging result;
the result output unit is used for displaying the discrimination result output by the logic analysis unit through the relay protection integrated intelligent management and control platform;
the logic analysis judging unit comprises a judging module, a logic analysis module and a result judging module, wherein the judging module judges the state of the element according to a judging signal output by the data processing unit, the logic analysis module analyzes the logic states of the control word and the pressing plate of the element, and the operation mode of the element is judged by the result judging module according to the analysis result of the logic analysis module.
Preferably, the data processing unit comprises a data interface, a data discriminating module and a data processing module, the data interface establishes a transmission channel of monitoring data with the on-line monitoring terminal through a data bus, the data discriminating module discriminates and classifies monitoring data acquired by the on-line monitoring terminal from a conventional station and an intelligent station, classifies the data according to line protection and transformer protection types corresponding to the monitored data, the data processing module processes the classified data of the data discriminating module to form a judging signal with logic characters, the element comprises a differential element, a distance element, a zero sequence element, a reclosing element and a backup element, a signal generator is fixedly connected in the pressing plate, the pressing plate comprises a soft pressing plate, a functional hard pressing plate, an outlet hard pressing plate, a GOOSE outlet pressing plate and a tripping and closing pressing plate, the pressing plate comprises a tripping module and a closing module, the pressing plate comprises a plurality of running state modules, the running state modules are internally connected with signal receivers, the signal feedback modules are arranged in the signal feedback modules, the signal feedback modules are integrally connected with an intelligent management and control signal, the signal feedback modules are integrally connected with a relay protection platform, and the conventional station is fixedly connected with a display signal feedback module, and the display signal is fixedly connected with the display module.
Preferably, the data processing unit adopts an MCU, the signal feedback module adopts a DM9000 chip, the data interface comprises a data communication interface module, and the data communication interface module adopts a double-chip w5200 chip.
An intelligent distinguishing method of an intelligent distinguishing system of a relay protection operation mode of a transformer substation comprises the following steps:
s1, judging the attributes of a line and a transformer through a judging module, and judging whether the type of the station belongs to a conventional station or an intelligent station;
s11, judging whether the type of the station is a conventional station or not, and classifying the monitoring data acquired by the on-line monitoring terminal by a data judging module of the data processing unit to divide line protection or transformer protection;
s111, for line protection, when the voltage level of the line is 110kV or above, starting a logic analysis module and a result judgment module, judging logic for the line protection operation mode of the conventional station, and outputting the intelligent identification result of the line of the conventional station;
s112, for transformer protection, starting a logic analysis module and a result judgment module, judging logic for a conventional station voltage protection operation mode, and outputting an intelligent identification result of the conventional station transformer;
s12, if the type of the station is judged to be an intelligent station, judging and classifying the monitoring data acquired by the on-line monitoring terminal through a data judging module of the data processing unit, and dividing line protection or transformer protection;
s121, when the type of the intelligent station equipment is judged to be line protection, for line protection, when the voltage level of the line is 110kV or above, starting a logic analysis module and a result judgment module, judging logic for the line protection operation mode of the intelligent station, and outputting the intelligent identification result of the intelligent station line
S122, when the type of the intelligent station equipment is judged to be transformer protection, starting a logic analysis module and a result judgment module for transformer protection, and outputting an intelligent identification result of the intelligent station transformer by an intelligent station voltage device protection operation mode judgment logic;
and S123, the result output unit receives the line protection and transformer intelligent identification result of the conventional station or the intelligent station, and displays the result through the relay protection integrated intelligent management and control platform.
Preferably, in the step S111, the logic judgment of the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate of the differential element, the distance element, the zero sequence element and the reclosing element in the conventional station line includes:
differential element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judgment result is tripping; the control word, the soft pressing plate and the functional hard pressing plate are all 1, the outlet hard pressing plate is 0, and the judgment result is weak current response; the control word and the soft pressing plate are 1, the functional hard pressing plate is 0, the outlet hard pressing plate is not judged, and the judgment result is a signal; the control word and the soft pressing plate are arbitrarily 0, the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judging result is not started; the control word and the soft pressing plate are not judged, and the functional hard pressing plate and the outlet hard pressing plate are not judged, so that the judging result is that the differential function is not generated;
distance element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judging result is starting; the control word is 1, any one of the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate is 0, and the judgment result is that the device is not used; the control word and the soft pressing plate are arbitrarily 0, the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judging result is not started;
zero sequence element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judging result is starting; the control word is 1, and any one of the soft pressing plate, the functional hard pressing plate or the outlet hard pressing plate is 0, and the judging result is that the device is disabled; any one of the control word and the soft pressing plate is 0, and the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judgment result is not started;
reclosing element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judging result is starting; the control word and the soft pressing plate are 1, the functional hard pressing plate or the outlet hard pressing plate is arbitrarily 0, and the judgment result is that the device is not used; the control word or the soft pressing plate is arbitrarily 0, and the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judgment result is not throw.
Preferably, in the step S112, the logic judgment of the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate of the differential element and the backup element in the protection of the transformer of the conventional station includes:
differential element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judgment result is tripping; the control word or the soft pressing plate is arbitrarily 0, and the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judgment result is a signal;
backup element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judging result is starting; the control word and the soft pressing plate are not judged, and if one of the functional hard pressing plate and the outlet hard pressing plate is 0, the judging result is that the device is disabled; the control word is not judged, the soft pressing plate is 0, the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judging result is not started.
Preferably, in the step S121, the logic for determining the operation mode of the intelligent station line protection is to logically determine control words, soft pressing plates, GOOSE outlet pressing plates and tripping and closing pressing plates of differential elements, distance elements, zero sequence elements and reclosing elements in the intelligent station line protection, including:
differential element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is tripping; the control word, the soft pressing plate and the tripping and closing pressing plate are all 1, and the GOOSE outlet pressing plate is 0, so that the judgment result is weak current response; the control word is 1, the soft pressing plate is 0, the GOOSE outlet pressing plate is not judged, the tripping and closing pressing plate is 1, and the judgment result is a signal; the control word is 1, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are not judged, and the judging result is not started; the control word and the soft pressing plate are not all arranged, and the GOOSE outlet pressing plate and the tripping and closing pressing plate are not judged, so that the judging result is that the differential function is not arranged;
distance element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is that starting is achieved; the control word is 1, any one of the soft pressing plate and the GOOSE outlet pressing plate is 0, the tripping and closing pressing plate is not judged, and the judging result is that the device is disabled; the control word is 0, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are not judged, and the judging result is not started;
zero sequence element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is that starting is achieved; the control word is 1, the soft pressing plate and the GOOSE outlet pressing plate are arbitrarily 0, the tripping and closing pressing plate is not judged, and the judging result is that the device is disabled; the control word is 0, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are not judged, and the judging result is not started;
reclosing element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is that starting is achieved; the control word is 1, any one of the soft pressing plate and the GOOSE outlet pressing plate is 0, the tripping and closing pressing plate is not judged, and the judging result is that the device is disabled; and if any one of the control word and the soft pressing plate is 0 and the GOOSE outlet pressing plate and the tripping and closing pressing plate are not judged, the judgment result is not throw.
Preferably, in the step S122, performing logic judgment on the control word, the soft pressing plate, the GOOSE outlet pressing plate, and the tripping and closing pressing plate of the differential element and the backup element in the transformer protection includes:
differential element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is tripping; the control word is not judged, any one of the soft pressing plate and the GOOSE outlet pressing plate is 0, the tripping and closing pressing plate is not judged, and the judgment result is a signal;
backup element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is that starting is achieved; the control word is not judged, one and only one of the soft pressing plate and the GOOSE outlet pressing plate are 0, the tripping and closing pressing plate is not judged, and the judging result is that the device is disabled; and if the control word is not judged, the soft pressing plate and the GOOSE outlet pressing plate are both 0, and the tripping and closing pressing plate is not judged, the judging result is not started.
Compared with the prior art, the invention has the beneficial effects that:
the invention recognizes and distinguishes the conventional station or the intelligent station through the combined use of the data processing unit, the logic analysis judging unit and the result output unit, and according to the data such as the control word, the pressing plate and the like in the relay protection equipment, the intelligent discrimination of the output line protection and the transformer protection is applied to the logic judgment, the relay protection running state of the transformer substation can be controlled in real time by the relay protection integrated intelligent control platform, meanwhile, the signal receiver corresponding to the pressing plate in different running states can be electrified to work, the detection signal sent by the signal generator can be received by the signal receiver in the electrified working state, the signal feedback module feeds back in time and displays the signal on the display in a centralized way, and the inspection personnel can learn the running state of various pressing plates at one glance, thereby providing convenience for the inspection work.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a schematic diagram of conventional station line protection operation mode judgment logic in the present invention;
FIG. 3 is a schematic diagram of a conventional station transformer protection operation mode judgment logic;
FIG. 4 is a schematic diagram of a judging logic of a line protection operation mode of an intelligent station according to the present invention;
FIG. 5 is a schematic diagram of the judgment logic of the protection operation mode of the intelligent station transformer in the invention;
FIG. 6 is a diagram of a medium-voltage plate-like judgment logic according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, an embodiment of the present invention is provided:
an intelligent distinguishing system for a relay protection operation mode of a transformer substation, which is installed and operated on an intelligent management and control platform integrated with the relay protection, is used for distinguishing a circuit of the transformer substation and a protection operation mode of a transformer, and comprises: the data processing unit is used for receiving monitoring data of the on-line monitoring terminal on the transformer station circuit and the transformer, and preprocessing the received monitoring data to form a judging signal; the logic analysis judging unit is used for judging and identifying the type of the station, wherein the type of the station comprises a conventional station and an intelligent station, receiving judging signals from the data unit, and carrying out logic analysis on a transformer station circuit and a transformer protection operation mode according to the judging signals to form a protection judging result; the result output unit is used for displaying the discrimination result output by the logic analysis unit through the relay protection integrated intelligent management and control platform; the logic analysis judging unit comprises a judging module, a logic analysis module and a result judging module, wherein the judging module judges the state of the element according to the judging signals output by the data processing unit, the logic analysis module analyzes the control word of the element and the logic state of the pressing plate, the operation mode of the element is judged by the result judging module according to the analysis result of the logic analysis module, the conventional station or the intelligent station is identified and distinguished by the combined use of the data processing unit, the logic analysis judging unit and the result output unit, the intelligent judgment of the output circuit protection and the transformer protection is utilized according to the data such as the control word and the pressing plate in the relay protection equipment, the operation state of the relay protection can be controlled in real time by the relay protection integrated intelligent control platform, meanwhile, the signal receiver corresponding to the pressing plate in different operation states can be electrified, the detection signal sent by the signal generator can be received by the signal receiver in the electrified operation state, the signal feedback module feeds back and displays the detection signal on a display in a centralized manner, the inspection personnel can learn the operation state of the pressing plate at one glance, and the inspection personnel can learn the operation state of the inspection work for the various pressing plates
Referring to fig. 6, in this embodiment, a data processing unit includes a data interface, a data discriminating module and a data processing module, the data interface establishes a transmission channel of monitoring data with an on-line monitoring terminal through a data bus, the data discriminating module discriminates and classifies monitoring data collected by the on-line monitoring terminal from a conventional station and an intelligent station, classifies the data according to line protection and transformer protection types corresponding to the monitored data, the data processing module processes the classified data of the data discriminating module to form a judging signal with logic characters, the element includes a differential element, a distance element, a zero sequence element, a reclosing element and a backup element, a signal generator is fixedly connected in the pressing plate, the pressing plate includes a soft pressing plate, a functional hard pressing plate, an exit hard pressing plate, a GOOSE exit pressing plate and a tripping pressing plate, the tripping pressing plate includes a tripping module and a closing module, the pressing plate includes a plurality of operation state modules, the operation state modules are connected with signal receivers, the signal receivers include signal feedback modules arranged in the operation state modules, the signal feedback modules are connected with a relay protection integrated intelligent management platform, and the conventional station and the intelligent station are fixedly connected with a display, and the signal feedback module is connected with the display;
referring to fig. 6, the operation state module refers to an operation state of the platen with various functions, for example: the tripping and closing pressure plate comprises a tripping module and a closing module, wherein the tripping module and the closing module are internally connected with signal receivers, the signal receivers comprise signal feedback modules arranged in the tripping module and the closing module, the signal feedback modules are in signal connection with a relay protection integrated intelligent control platform, the conventional station and the intelligent station are fixedly connected with a display, the signal feedback modules are in signal connection with the display, in the blending pressure plate, the tripping module and the closing module are running state modules, when the tripping module runs, the signal receivers connected with the tripping module are electrified along with the tripping module, the signal receivers connected with the closing module in an inactive state are powered off, and when the signal generator sends out a detection signal, the signal receivers in the electrified working state are synchronously fed back to the relay protection integrated intelligent control platform and the display in the corresponding position by the signal feedback modules, and the working state of the tripping pressure plate is displayed by the display.
The data processing unit adopts MCU, the signal feedback module adopts DM9000 chip, the data interface includes the data communication interface module, the data communication interface module adopts biplate w5200 chip, DM9000 chip is in the support tolerance of 3.3V and 5V of low-power consumption and high performance process, DM9000 still provides the medium irrelevant interface, is connected with all domestic telephone line network equipment or other transceivers that provide support medium irrelevant interface function.
An intelligent distinguishing method of an intelligent distinguishing system of a relay protection operation mode of a transformer substation comprises the following steps:
s1, judging the attributes of a line and a transformer through a judging module, and judging whether the type of the station belongs to a conventional station or an intelligent station;
s11, judging whether the type of the station is a conventional station or not, and classifying the monitoring data acquired by the on-line monitoring terminal by a data judging module of the data processing unit to divide line protection or transformer protection;
s111, for line protection, when the voltage level of the line is 110kV or above, starting a logic analysis module and a result judgment module, judging logic for the line protection operation mode of the conventional station, and outputting the intelligent identification result of the line of the conventional station;
s112, for transformer protection, starting a logic analysis module and a result judgment module, judging logic for a conventional station voltage protection operation mode, and outputting an intelligent identification result of the conventional station transformer;
s12, if the type of the station is judged to be an intelligent station, judging and classifying the monitoring data acquired by the on-line monitoring terminal through a data judging module of the data processing unit, and dividing line protection or transformer protection;
s121, when the type of the intelligent station equipment is judged to be line protection, for line protection, when the voltage level of the line is 110kV or above, starting a logic analysis module and a result judgment module, judging logic for the line protection operation mode of the intelligent station, and outputting the intelligent identification result of the intelligent station line
S122, when the type of the intelligent station equipment is judged to be transformer protection, starting a logic analysis module and a result judgment module for transformer protection, and outputting an intelligent identification result of the intelligent station transformer by an intelligent station voltage device protection operation mode judgment logic;
and S123, the result output unit receives the line protection and transformer intelligent identification result of the conventional station or the intelligent station, and displays the result through the relay protection integrated intelligent management and control platform.
In step S111, performing logic judgment on control words, soft pressing plates, functional hard pressing plates and outlet hard pressing plates of differential elements, distance elements, zero sequence elements and reclosing elements in a conventional station line includes:
differential element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judgment result is tripping; the control word, the soft pressing plate and the functional hard pressing plate are all 1, the outlet hard pressing plate is 0, and the judgment result is weak current response; the control word and the soft pressing plate are 1, the functional hard pressing plate is 0, the outlet hard pressing plate is not judged, and the judgment result is a signal; the control word and the soft pressing plate are arbitrarily 0, the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judging result is not started; the control word and the soft pressing plate are not judged, and the functional hard pressing plate and the outlet hard pressing plate are not judged, so that the judging result is that the differential function is not generated;
distance element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judging result is starting; the control word is 1, any one of the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate is 0, and the judgment result is that the device is not used; the control word and the soft pressing plate are arbitrarily 0, the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judging result is not started;
zero sequence element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judging result is starting; the control word is 1, and any one of the soft pressing plate, the functional hard pressing plate or the outlet hard pressing plate is 0, and the judging result is that the device is disabled; any one of the control word and the soft pressing plate is 0, and the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judgment result is not started;
reclosing element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judging result is starting; the control word and the soft pressing plate are 1, the functional hard pressing plate or the outlet hard pressing plate is arbitrarily 0, and the judgment result is that the device is not used; the control word or the soft pressing plate is arbitrarily 0, and the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judgment result is not throw.
In step S112, performing logic judgment on the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate of the differential element and the backup element in the protection of the transformer of the conventional station includes:
differential element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judgment result is tripping; the control word or the soft pressing plate is arbitrarily 0, and the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judgment result is a signal;
backup element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judging result is starting; the control word and the soft pressing plate are not judged, and if one of the functional hard pressing plate and the outlet hard pressing plate is 0, the judging result is that the device is disabled; the control word is not judged, the soft pressing plate is 0, the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judging result is not started.
In step S121, logic for judging the operation mode of the intelligent station line protection is to logically judge control words, soft pressing plates, GOOSE outlet pressing plates and tripping and closing pressing plates of differential elements, distance elements, zero sequence elements and reclosing elements in the intelligent station line protection, including:
differential element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is tripping; the control word, the soft pressing plate and the tripping and closing pressing plate are all 1, and the GOOSE outlet pressing plate is 0, so that the judgment result is weak current response; the control word is 1, the soft pressing plate is 0, the GOOSE outlet pressing plate is not judged, the tripping and closing pressing plate is 1, and the judgment result is a signal; the control word is 1, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are not judged, and the judging result is not started; the control word and the soft pressing plate are not all arranged, and the GOOSE outlet pressing plate and the tripping and closing pressing plate are not judged, so that the judging result is that the differential function is not arranged;
distance element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is that starting is achieved; the control word is 1, any one of the soft pressing plate and the GOOSE outlet pressing plate is 0, the tripping and closing pressing plate is not judged, and the judging result is that the device is disabled; the control word is 0, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are not judged, and the judging result is not started;
zero sequence element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is that starting is achieved; the control word is 1, the soft pressing plate and the GOOSE outlet pressing plate are arbitrarily 0, the tripping and closing pressing plate is not judged, and the judging result is that the device is disabled; the control word is 0, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are not judged, and the judging result is not started;
reclosing element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is that starting is achieved; the control word is 1, any one of the soft pressing plate and the GOOSE outlet pressing plate is 0, the tripping and closing pressing plate is not judged, and the judging result is that the device is disabled; and if any one of the control word and the soft pressing plate is 0 and the GOOSE outlet pressing plate and the tripping and closing pressing plate are not judged, the judgment result is not throw.
In step S122, performing logic judgment on the control word, the soft pressing plate, the GOOSE outlet pressing plate, and the tripping and closing pressing plate of the differential element and the backup element in transformer protection includes:
differential element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is tripping; the control word is not judged, any one of the soft pressing plate and the GOOSE outlet pressing plate is 0, the tripping and closing pressing plate is not judged, and the judgment result is a signal;
backup element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is that starting is achieved; the control word is not judged, one and only one of the soft pressing plate and the GOOSE outlet pressing plate are 0, the tripping and closing pressing plate is not judged, and the judging result is that the device is disabled; and if the control word is not judged, the soft pressing plate and the GOOSE outlet pressing plate are both 0, and the tripping and closing pressing plate is not judged, the judging result is not started.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a system is discerned to transformer substation relay protection running mode intelligence which characterized in that, intelligence discerns system installation operation in relay protection integration intelligent management and control platform for discern transformer substation circuit and transformer protection running mode, intelligent discernment system includes:
the data processing unit is used for receiving monitoring data of the on-line monitoring terminal on the transformer station circuit and the transformer, and preprocessing the received monitoring data to form a judging signal;
the logic analysis judging unit is used for judging and identifying the type of the station, wherein the type of the station comprises a conventional station and an intelligent station, receiving judging signals from the data unit, and carrying out logic analysis on a transformer station circuit and a transformer protection operation mode according to the judging signals to form a protection judging result;
the result output unit is used for displaying the discrimination result output by the logic analysis unit through the relay protection integrated intelligent management and control platform;
the logic analysis judging unit comprises a judging module, a logic analysis module and a result judging module, wherein the judging module judges the state of the element according to a judging signal output by the data processing unit, the logic analysis module analyzes the logic states of the control word and the pressing plate of the element, and the operation mode of the element is judged by the result judging module according to the analysis result of the logic analysis module;
the data processing unit comprises a data interface, a data distinguishing module and a data processing module, wherein the data interface establishes a transmission channel of monitoring data with the online monitoring terminal through a data bus, the data distinguishing module distinguishes and classifies monitoring data acquired by the online monitoring terminal from a conventional station and an intelligent station, classifies the data according to line protection and transformer protection types corresponding to the monitored data, the data processing module processes the classified data of the data distinguishing module to form a judging signal with logic characters, the element comprises a differential element, a distance element, a zero sequence element, a reclosing element and a backup element, a signal generator is fixedly connected in the pressing plate, the pressing plate comprises a soft pressing plate, a functional hard pressing plate, an outlet hard pressing plate, a GOOSE outlet pressing plate and a tripping and closing pressing plate, the pressing plate comprises a tripping module and a closing module, the pressing plate comprises a plurality of running state modules, the running state modules are internally connected with signal receivers, the signal feedback modules are connected with an integrated management and control platform, the signal feedback modules are fixedly connected with the conventional station and the intelligent station, and the display module is fixedly connected with a display signal feedback module.
2. The intelligent distinguishing system for the relay protection operation mode of the transformer substation according to claim 1, wherein the data processing unit adopts an MCU, the signal feedback module adopts a DM9000 chip, the data interface comprises a data communication interface module, and the data communication interface module adopts a double-chip w5200 chip.
3. The intelligent distinguishing method of the intelligent distinguishing system for the relay protection operation mode of the transformer substation according to any one of claims 1 to 2, comprising the following steps:
s1, judging the attributes of a line and a transformer through a judging module, and judging whether the type of the station belongs to a conventional station or an intelligent station;
s11, judging whether the type of the station is a conventional station or not, and classifying the monitoring data acquired by the on-line monitoring terminal by a data judging module of the data processing unit to divide line protection or transformer protection;
s111, for line protection, when the voltage level of the line is 110kV or above, starting a logic analysis module and a result judgment module, judging logic for the line protection operation mode of the conventional station, and outputting the intelligent identification result of the line of the conventional station;
s112, for transformer protection, starting a logic analysis module and a result judgment module, judging logic for a conventional station voltage protection operation mode, and outputting an intelligent identification result of the conventional station transformer;
s12, if the type of the station is judged to be an intelligent station, judging and classifying the monitoring data acquired by the on-line monitoring terminal through a data judging module of the data processing unit, and dividing line protection or transformer protection;
s121, when the type of the intelligent station equipment is judged to be line protection, for line protection, when the voltage level of the line is 110kV or above, starting a logic analysis module and a result judgment module, judging logic for the line protection operation mode of the intelligent station, and outputting the intelligent identification result of the intelligent station line
S122, when the type of the intelligent station equipment is judged to be transformer protection, starting a logic analysis module and a result judgment module for transformer protection, and outputting an intelligent identification result of the intelligent station transformer by an intelligent station voltage device protection operation mode judgment logic;
and S123, the result output unit receives the line protection and transformer intelligent identification result of the conventional station or the intelligent station, and displays the result through the relay protection integrated intelligent management and control platform.
4. The intelligent recognition method of the intelligent recognition system for the relay protection operation mode of the transformer substation according to claim 3, wherein in the step S111, the logic judgment of the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate of the differential element, the distance element, the zero sequence element and the reclosing element in the conventional station line comprises:
differential element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judgment result is tripping; the control word, the soft pressing plate and the functional hard pressing plate are all 1, the outlet hard pressing plate is 0, and the judgment result is weak current response; the control word and the soft pressing plate are 1, the functional hard pressing plate is 0, the outlet hard pressing plate is not judged, and the judgment result is a signal; the control word and the soft pressing plate are arbitrarily 0, the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judging result is not started; the control word and the soft pressing plate are not judged, and the functional hard pressing plate and the outlet hard pressing plate are not judged, so that the judging result is that the differential function is not generated;
distance element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judging result is starting; the control word is 1, any one of the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate is 0, and the judgment result is that the device is not used; the control word and the soft pressing plate are arbitrarily 0, the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judging result is not started;
zero sequence element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judging result is starting; the control word is 1, and any one of the soft pressing plate, the functional hard pressing plate or the outlet hard pressing plate is 0, and the judging result is that the device is disabled; any one of the control word and the soft pressing plate is 0, and the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judgment result is not started;
reclosing element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judging result is starting; the control word and the soft pressing plate are 1, the functional hard pressing plate or the outlet hard pressing plate is arbitrarily 0, and the judgment result is that the device is not used; the control word or the soft pressing plate is arbitrarily 0, and the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judgment result is not throw.
5. The intelligent recognition method of the intelligent recognition system for the relay protection operation mode of the transformer substation according to claim 3, wherein in the step S112, performing logic judgment on control words, soft pressing plates, functional hard pressing plates and outlet hard pressing plates of differential elements and backup elements in the protection of a transformer of a conventional substation comprises:
differential element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judgment result is tripping; the control word or the soft pressing plate is arbitrarily 0, and the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judgment result is a signal;
backup element: the control word, the soft pressing plate, the functional hard pressing plate and the outlet hard pressing plate are all 1, and the judging result is starting; the control word and the soft pressing plate are not judged, and if one of the functional hard pressing plate and the outlet hard pressing plate is 0, the judging result is that the device is disabled; the control word is not judged, the soft pressing plate is 0, the functional hard pressing plate and the outlet hard pressing plate are not judged, and the judging result is not started.
6. The intelligent recognition method of the intelligent recognition system for the relay protection operation mode of the transformer substation according to claim 3, wherein in the step S121, logic for judging the intelligent station line protection operation mode is to judge control words, soft pressing plates, GOOSE outlet pressing plates and tripping and closing pressing plates of differential elements, distance elements, zero sequence elements and reclosing elements in the intelligent station line protection, and the logic comprises the following steps:
differential element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is tripping; the control word, the soft pressing plate and the tripping and closing pressing plate are all 1, and the GOOSE outlet pressing plate is 0, so that the judgment result is weak current response; the control word is 1, the soft pressing plate is 0, the GOOSE outlet pressing plate is not judged, the tripping and closing pressing plate is 1, and the judgment result is a signal; the control word is 1, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are not judged, and the judging result is not started; the control word and the soft pressing plate are not all arranged, and the GOOSE outlet pressing plate and the tripping and closing pressing plate are not judged, so that the judging result is that the differential function is not arranged;
distance element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is that starting is achieved; the control word is 1, any one of the soft pressing plate and the GOOSE outlet pressing plate is 0, the tripping and closing pressing plate is not judged, and the judging result is that the device is disabled; the control word is 0, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are not judged, and the judging result is not started;
zero sequence element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is that starting is achieved; the control word is 1, the soft pressing plate and the GOOSE outlet pressing plate are arbitrarily 0, the tripping and closing pressing plate is not judged, and the judging result is that the device is disabled; the control word is 0, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are not judged, and the judging result is not started;
reclosing element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is that starting is achieved; the control word is 1, any one of the soft pressing plate and the GOOSE outlet pressing plate is 0, the tripping and closing pressing plate is not judged, and the judging result is that the device is disabled; and if any one of the control word and the soft pressing plate is 0 and the GOOSE outlet pressing plate and the tripping and closing pressing plate are not judged, the judgment result is not throw.
7. The intelligent identification method of the intelligent identification system for the relay protection operation mode of the transformer substation according to claim 3, wherein in the step S122, performing logic judgment on control words, soft pressing plates, GOOSE outlet pressing plates and tripping and closing pressing plates of the differential element and the backup element in the transformer protection comprises:
differential element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is tripping; the control word is not judged, any one of the soft pressing plate and the GOOSE outlet pressing plate is 0, the tripping and closing pressing plate is not judged, and the judgment result is a signal;
backup element: the control word, the soft pressing plate, the GOOSE outlet pressing plate and the tripping and closing pressing plate are all 1, and the judgment result is that starting is achieved; the control word is not judged, one and only one of the soft pressing plate and the GOOSE outlet pressing plate are 0, the tripping and closing pressing plate is not judged, and the judging result is that the device is disabled; and if the control word is not judged, the soft pressing plate and the GOOSE outlet pressing plate are both 0, and the tripping and closing pressing plate is not judged, the judging result is not started.
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