CN111025042A - Logic simulation and verification system of relay protection device - Google Patents
Logic simulation and verification system of relay protection device Download PDFInfo
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- CN111025042A CN111025042A CN201911094402.1A CN201911094402A CN111025042A CN 111025042 A CN111025042 A CN 111025042A CN 201911094402 A CN201911094402 A CN 201911094402A CN 111025042 A CN111025042 A CN 111025042A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The invention discloses a logic simulation and verification system of a relay protection device, which comprises a storage unit and an operation unit, wherein the storage unit is used for storing system operation data, service data and a control program, the operation unit is used for executing the control program and outputting an operation result, and the system comprises a control unit and an analog data unit; the control unit is used for converting the operation result of the operation unit into one or more of an electric signal, a driving current and a voltage, and/or controlling the input and/or the output of one or more of the electric signal, the driving current and the voltage to the operation unit; and the analog quantity data unit is used for generating analog current and/or voltage according to the corresponding operation result of the operation unit. The simulation and verification of the protection logic of the protection device of any mainstream manufacturer are realized, and meanwhile, the real SMV and GOOSE data can be analyzed. The checking and training of the protection device can be realized under the condition that no real protection device exists.
Description
Technical Field
The invention relates to the technical field of relay protection, relates to a simulation technology of relay protection device logic, and particularly relates to a logic simulation and verification system of a relay protection device.
Background
The intelligent transformer substation adopts advanced, reliable, integrated and environment-friendly intelligent equipment, takes total station information digitization, communication platform networking and information sharing standardization as basic requirements, automatically completes basic functions of information acquisition, measurement, control, protection, metering, detection and the like, and simultaneously has advanced functions of supporting real-time automatic control, intelligent adjustment, on-line analysis decision, cooperative interaction and the like of a power grid.
The intelligent transformer substation mainly comprises an intelligent high-voltage device and a transformer substation unified information platform. The intelligent high-voltage equipment mainly comprises an intelligent transformer, intelligent high-voltage switch equipment, an electronic transformer and the like. The intelligent transformer is connected with the control system by means of communication optical fibers, and the state parameters and the operation data of the transformer can be mastered in time. When the operation mode is changed, the equipment determines whether to adjust the tap according to the voltage and power conditions of the system; when equipment goes wrong, early warning can be sent out, state parameters can be provided, and the like, so that the operation management cost is reduced to a certain extent, hidden dangers are reduced, and the operation reliability of the transformer is improved. The intelligent high-voltage switch equipment is high-performance switch equipment and control equipment, is provided with electronic equipment, a sensor and an actuator, and has monitoring and diagnosis functions. The electronic mutual inductor is a pure optical fiber mutual inductor, a magneto-optical glass mutual inductor and the like, and can effectively overcome the defects of the traditional electromagnetic mutual inductor. The transformer substation unified information platform has two functions, namely, system transverse information sharing which is mainly expressed as unification of various upper-layer applications in a management system on information acquisition; and secondly, the standardization of longitudinal information of the system is mainly expressed by the transparentization of each layer to the upper application support of the layer.
The intelligent system is humanized, namely the transformer substation is adjusted like a person, the transformer substation sends out electric quantity meeting the requirement of increasing the load when the low-voltage load is increased, and the transformer substation sends out electric quantity which is reduced when the low-voltage load is reduced, so that the energy is saved.
In the operation and maintenance process of the intelligent substation, the secondary system abnormity and fault diagnosis, the function test of the protection device, the accident analysis related test and the like cannot be carried out in an operation system, and the offline analysis cannot restore the real fault state; relay protection manufacturers and protection devices are various in types, and if real equipment is purchased in daily training and learning, the cost is higher; most of the existing relay protection simulation systems adopt virtual data, and cannot receive SMV and GOOSE signals to carry out real action verification. Therefore, a system which not only replaces real equipment, but also can realize protection logic verification, fault playback and accident analysis is urgently needed.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are that relay protection manufacturers and protection devices have various models, and if real equipment is purchased in daily training and learning, the cost is higher; virtual data adopted by most of the existing relay protection simulation systems cannot receive SMV and GOOSE signals to carry out real action verification; the logic simulation and verification system of the relay protection device is provided to solve the above problems in the prior art.
According to one aspect of the present invention, there is provided a logic simulation and verification system for a relay protection device, comprising a storage unit and an arithmetic unit, wherein the storage unit is used for storing system operation data, service data and a control program, the arithmetic unit is used for executing the control program and outputting an arithmetic result, and is characterized in that,
the system comprises a control unit and an analog quantity data unit;
a control unit for converting the operation result of the operation unit into one or more of an electric signal, a driving current and a voltage, and/or,
controlling one or more of the electric signal, the driving current and the voltage to be input into and/or output from the arithmetic unit;
and the analog quantity data unit is used for generating analog current and/or voltage according to the corresponding operation result of the operation unit.
Preferably, the control program includes an SCD file parsing unit, and the SCD file parsing unit is configured to parse an SCD file stored in the storage unit and/or an SCD file stored in an external storage medium input through a system interface.
Preferably, the control program includes an SCD file checking unit, and the SCD file checking unit may extract standard check data stored in the storage unit and/or stored in an external storage medium input through a system interface, perform compliance checking on the SCD file obtained by the parsing according to the extracted standard data specification, and output a result of compliance or non-compliance.
In a preferred scheme, the system comprises a relay device protection logic simulation unit, the relay device protection logic simulation unit can acquire relay device protection logic data in the analysis result of the SCD file analysis unit and generate a control signal to control an input and/or output interface of the control unit,
and the input and output interface of the control unit takes the relay device protection logic data as logic execution input and/or output according to the control signal.
Preferably, the system includes an SMV data parsing unit, where the SMV data parsing unit is configured to parse an SMV data file stored in the storage unit and/or an SMV data file stored in an external storage medium input through a system interface.
Preferably, the system includes a GOOSE data parsing unit, where the GOOSE data parsing unit is configured to parse GOOSE data files stored in the storage unit and/or GOOSE data files stored in an external storage medium input through a system interface.
Preferably, the system comprises an MMS communication unit, the MMS communication unit comprises a first data port connected with a system data interface and a second data interface connected with external data, and the second data interface can be used for being in communication connection with a monitoring background and/or a telecontrol device and used for acquiring or acquiring service data of the monitoring background and/or the telecontrol device in real time.
In an optimized scheme, the system comprises a fault playback unit, wherein the fault playback unit can record the simulation process in a wave recording mode and generate a wave recording file; and calling the recording file at any time, and/or playing back and analyzing.
Preferably, the system comprises an expert logic unit, and the expert logic unit can extract expert logic data stored in a storage unit and/or an external storage medium input through a system interface, perform compliance monitoring on the simulation process according to the extracted expert logic data specification, and output a result of compliance or non-compliance according to a detection item.
The logic simulation and verification system of the relay protection device can simulate the logic of the relay protection device of a mainstream manufacturer in an SCD configuration file mode, and meanwhile, the system is provided with an analog quantity simulation unit and can realize real-time verification of the protection logic; in addition, the system supports the import of the recording file to realize fault playback, thereby completing fault analysis. The system can realize simulation and verification of protection logic of any mainstream factory protection device, can also realize data such as current and voltage simulation, and can analyze real SMV and GOOSE data. The checking and training of the protection device can be realized under the condition that no real protection device exists.
Drawings
FIG. 1 is an analytic diagram of a unit structure of a protection logic simulation and verification system of a relay protection device;
fig. 2 is a service flow chart of a relay protection device protection logic simulation and verification system.
Detailed Description
The technical means adopted by the invention to achieve the predetermined object of the invention are further described below with reference to the drawings and the preferred embodiments of the invention.
As shown in fig. 1 and fig. 2, in an optional embodiment of the present invention, a logic simulation and verification system for a relay protection device includes a storage unit and an arithmetic unit, where the storage unit is used to store system operation data, service data and a control program, and the arithmetic unit is used to execute the control program and output an arithmetic result, and the system includes a control unit and an analog data unit;
a control unit for converting the operation result of the operation unit into one or more of an electric signal, a driving current and a voltage, and/or,
controlling one or more of the electric signal, the driving current and the voltage to be input into and/or output from the arithmetic unit;
and the analog quantity data unit is used for generating analog current and/or voltage according to the corresponding operation result of the operation unit.
In an embodiment, the control program includes an SCD file parsing unit, where the SCD file parsing unit is configured to parse an SCD file stored in the storage unit and/or an SCD file stored in an external storage medium input through a system interface.
In an embodiment, the control program includes an SCD file checking unit, and the SCD file checking unit may extract standard check data stored in the storage unit and/or stored in an external storage medium input through a system interface, perform compliance check on the SCD file obtained through parsing according to the extracted standard data specification, and output a result of compliance or non-compliance.
In the embodiment, the system includes a relay protection logic simulation unit, the relay protection logic simulation unit can obtain the relay protection logic data in the analysis result of the SCD file analysis unit, generate a control signal, control the input and/or output interface of the control unit,
and the input and output interface of the control unit takes the relay device protection logic data as logic execution input and/or output according to the control signal.
In an alternative embodiment, the system includes an SMV data parsing unit, where the SMV data parsing unit is configured to parse an SMV data file stored in the storage unit and/or an SMV data file stored in an external storage medium input through a system interface.
In an embodiment, the system includes a GOOSE data parsing unit, where the GOOSE data parsing unit is configured to parse a GOOSE data file stored in the storage unit and/or a GOOSE data file stored in an external storage medium input through a system interface.
In an alternative embodiment, the system includes an MMS communication unit, where the MMS communication unit includes a first data port connected to a system data interface and a second data interface connected to external data, and the second data interface may be used for being in communication connection with a monitoring background and/or a remote control device, and is used to obtain or obtain service data of the monitoring background and/or the remote control device in real time.
In an alternative embodiment, the system includes a fault playback unit, and the fault playback unit may record the simulation process in a wave recording manner and generate a wave recording file; and calling the recording file at any time, and/or playing back and analyzing.
According to the scheme of the optional embodiment, the system comprises an expert logic unit, and the expert logic unit can extract expert logic data stored by a storage unit and/or an external storage medium input through a system interface, perform compliance monitoring on the simulation process according to the extracted expert logic data specification, and output a result of compliance or non-compliance according to a detection item.
In one embodiment, the system mainly comprises an SCD file analyzing and verifying unit, an analog quantity data simulation unit, a relay device protection logic simulation unit, an SMV and GOOSE data analyzing unit, a communication unit and a fault playback unit.
The SCD file analyzing and checking unit mainly analyzes the SCD file and checks whether the model meets the relevant specifications, such as 61850 specification;
the analog quantity data simulation unit is mainly used for realizing simulation voltage and current data in a system and used for inputting the relay protection logic simulation unit;
the relay protection device protection logic simulation unit is mainly used for simulating the protection device logic of each major manufacturer and judging whether the protection logic should act according to input voltage and current data;
the SMV and GOOSE data analysis unit is mainly used for analyzing received SMV and GOOSE message information and analyzing voltage and current and switch positions in the SMV and GOOSE message information;
the MMS communication unit is mainly used for communicating with a monitoring background, a telecontrol device and the like, and can transmit the action information of the device;
the fault playback unit is mainly used for analyzing the fault recording file and transmitting data in the recording file to the relay protection device protection logic simulation unit through the analog quantity data simulation unit again.
In one embodiment, a protection device protection logic expert library is established, protection device logics of current mainstream manufacturers are recorded, any protection device can be selected after an SCD file is analyzed, and then corresponding protection logics are called in the protection logic expert library, so that real-time verification of the protection logics of the protection device is realized; the data source of the embodiment can be from an analog quantity simulation unit, and can also collect and analyze external actual SMV and GOOSE data; the invention is also provided with an MMS communication unit, and can communicate and transmit data with a monitoring background, a telecontrol device and the like.
In one embodiment, the protection logic verification process of the system is as follows: a. the system imports the SCD file and checks whether the SCD file meets the specification; b. selecting a relay protection device to be checked, and calling a corresponding template from a protection logic expert library by a system; c. selecting corresponding data, selecting analog voltage and current of a system, selecting external data and analyzing SMV data; d. and carrying out protection logic verification according to the data source, and if a protection action report is output through verification, adjusting the voltage and current data to retest if the program can be directly ended.
The method comprises the steps of establishing a protection device protection logic expert library, recording protection device logics of current mainstream manufacturers, analyzing an SCD file, selecting any protection device, calling corresponding protection logics in the protection logic expert library, and further realizing real-time verification of the protection logic of the protection device; the data source of the invention can come from the analog quantity simulation unit of the invention, can gather and analyze the actual SMV, GOOSE data of the external world too; the invention is also provided with an MMS communication unit, and can communicate and transmit data with a monitoring background, a telecontrol device and the like.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A logic simulation and verification system of a relay protection device comprises a storage unit and an operation unit, wherein the storage unit is used for storing system operation data, service data and a control program, the operation unit is used for executing the control program and outputting an operation result, and the logic simulation and verification system is characterized in that,
the system comprises a control unit and an analog quantity data unit;
a control unit for converting the operation result of the operation unit into one or more of an electric signal, a driving current and a voltage, and/or,
controlling one or more of the electric signal, the driving current and the voltage to be input into and/or output from the arithmetic unit;
and the analog quantity data unit is used for generating analog current and/or voltage according to the corresponding operation result of the operation unit.
2. The relay protection device logic simulation and verification system according to claim 1, wherein the control program comprises an SCD file parsing unit, and the SCD file parsing unit is configured to parse an SCD file stored in the storage unit and/or an SCD file stored in an external storage medium input through a system interface.
3. The relay protection device logic simulation and verification system according to claim 2, wherein the control program comprises an SCD file verification unit, and the SCD file verification unit is capable of extracting verification standard data stored in the storage unit and/or stored in an external storage medium input through a system interface, performing compliance verification on the SCD file obtained by analysis according to the extracted standard data specification, and outputting a result of compliance or non-compliance.
4. The relay protection device logic simulation and verification system according to claim 3, wherein the system comprises a relay protection logic simulation unit, the relay protection logic simulation unit can obtain the relay protection logic data in the analysis result of the SCD file analysis unit, generate a control signal, control the input and/or output interface of the control unit,
and the input and output interface of the control unit takes the relay device protection logic data as logic execution input and/or output according to the control signal.
5. The relay protection device logic simulation and verification system according to any one of claims 1 to 4, wherein the system comprises an SMV data analysis unit, and the SMV data analysis unit is configured to analyze an SMV data file stored in the storage unit and/or an SMV data file stored in an external storage medium input through a system interface.
6. The relay protection device logic simulation and verification system according to any one of claims 1 to 5, wherein the system comprises a GOOSE data analysis unit, and the GOOSE data analysis unit is configured to analyze GOOSE data files stored in the storage unit and/or GOOSE data files stored in an external storage medium input through a system interface.
7. The relay protection device logic simulation and verification system according to any one of claims 1 to 6, wherein the system comprises an MMS communication unit, the MMS communication unit comprises a first data port connected to a system data interface and a second data interface connected to external data, and the second data interface is used for being in communication connection with a monitoring back-end and/or a telecontrol device, and is used for acquiring or real-time acquiring service data of the monitoring back-end and/or the telecontrol device.
8. The relay protection device logic simulation and verification system according to any one of claims 1 to 7, wherein the system comprises a fault playback unit, the fault playback unit can record the simulation process in a wave recording manner and generate a wave recording file; and calling the recording file at any time, and/or playing back and analyzing.
9. The relay protection device logic simulation and verification system according to any one of claims 1 to 8, wherein the system comprises an expert logic unit, the expert logic unit can extract expert logic data stored in a storage unit and/or stored in an external storage medium input through a system interface, perform compliance monitoring on the simulation process according to the extracted expert logic data specification, and output a result of compliance or non-compliance according to a detection item.
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