CN114915562B - IEC 61850 station control layer network communication service simulation server and simulation method - Google Patents

IEC 61850 station control layer network communication service simulation server and simulation method Download PDF

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CN114915562B
CN114915562B CN202210408342.1A CN202210408342A CN114915562B CN 114915562 B CN114915562 B CN 114915562B CN 202210408342 A CN202210408342 A CN 202210408342A CN 114915562 B CN114915562 B CN 114915562B
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simulation
data
intelligent electronic
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station
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CN114915562A (en
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姚燕春
罗华煜
周华良
刘千令
郑洁
程德荣
徐广辉
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Nari Technology Co Ltd
NARI Nanjing Control System Co Ltd
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NARI Nanjing Control System Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/14—Network analysis or design
    • H04L41/145—Network analysis or design involving simulating, designing, planning or modelling of a network
    • 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]
    • 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
    • H02J13/00006—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00028—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • 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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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Computing Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Human Computer Interaction (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

The invention provides a server side and a simulation method for IEC61850 station control layer network communication service simulation, which are used for loading and analyzing a simulation test configuration script to obtain intelligent electronic equipment model data and simulation test behavior parameters required by the full-station intelligent electronic equipment simulation communication service; creating a simulation signal memory real-time database according to the intelligent electronic equipment model data; configuring a network communication environment; creating a communication service simulation object of the total-station intelligent electronic device in batches based on all intelligent electronic devices; and executing IEC61850 communication simulation tasks which are created in batches in a process mode according to the network communication environment, the intelligent electronic device model data and the configuration simulation test behavior parameters aiming at each simulation object. The invention can save a great amount of system resources by cutting the configuration information of the total station SCD model; the intelligent electronic equipment IEC61850 concurrent communication simulation behavior method can be used for intelligent electronic equipment IEC61850 concurrent communication simulation behavior with large orders of magnitude in the whole substation.

Description

IEC 61850 station control layer network communication service simulation server and simulation method
Technical Field
The invention belongs to the field of application of substation automation systems, relates to a simulation method for intelligent substation total station intelligent electronic equipment station control layer network communication service based on IEC 61850 standard, and particularly relates to a service end and a simulation method for IEC 61850 station control layer network communication service simulation.
Background
IEC61850 is the only global universal standard in the field of power system automation and is widely applied to intelligent substation engineering. The IEC61850 standard defines service primitives, interaction flows and parameters of communication services through an abstract communication service interface (Abstract communication SERVICE INTERFACE, abbreviated as ACSI), and maps the ACSI services to different communication protocols through a Special Communication Service Mapping (SCSM) to realize specific communication functions.
At present, IEC61850 service terminal simulation debugging software is developed by detecting institutions and power secondary equipment manufacturers at home and abroad, and simulation is often carried out aiming at communication service of single intelligent electronic equipment, and the simulation software is mainly used for verifying consistency of ACSI service of IEC 61850. For system integration debugging and communication performance testing at the factory station level, system simulation is often required to be carried out on station-control layer communication network communication services formed by hundreds or even hundreds of intelligent electronic devices at the whole station, and meanwhile, the communication service ends of the whole station intelligent electronic devices deployed on a spacer layer are operated in batch simulation mode, so that four-remote (remote signaling, remote measuring, remote control and remote regulation) communication services of the intelligent electronic devices and mass change data communication scenes such as avalanche are simulated. To achieve these functions, the data processing capacity and speed of the number of plant levels of the simulation system are extremely high: on one hand, the requirements on resources such as CPU, memory and the like of the simulation system are high; on the other hand, based on resource bottleneck limits of a simulation system CPU, a memory and the like, the lightweight design of the system simulation signals is required to be carried out in the face of super quantity simulation signals of a plant level, IEC61850 communication service is reconstructed, and simulation signal data sources of all intelligent electronic devices are managed in real time and in a unified mode.
At present, an intelligent electronic device server based on IEC61850 standard is simulated, an internal memory database matched with the model is generally established by analyzing an intelligent electronic device information model, then an IEC61850 server communication service is started, various model information for simulation is extracted, a virtual signal library is generated, and various communication simulation operations based on MMS protocol are further developed.
At present, for a technical route of single IED equipment simulation, a model file (CID file, configured IED Description configured IED description file) of a single intelligent electronic device is usually derived from a substation total station model configuration file (SCD file, substation Configuration Description substation configuration description file), a complete dynamic model database is created by analyzing the CID file, and model data information required by communication service is extracted from the model database to perform communication service simulation.
If communication services of all intelligent electronic devices in the simulation substation are provided, analyzing the SCD file of the total station model configuration is needed, and hundreds of device model configuration information is loaded. If the simulation database is created based on a complete model, a great deal of system resources are consumed, high requirements are put on the hardware environment for running the simulation system, and great difficulty exists in realizing the simulation database on a single machine.
Disclosure of Invention
The invention aims to provide a station control layer communication service simulation method of substation total station intelligent electronic equipment based on IEC 61850, which can save a large amount of system resources by analyzing a total station SCD model file, cutting configuration information and establishing IED model data according to the cut configuration information.
In order to achieve the technical purpose, the invention adopts the following technical scheme.
In one aspect, the invention provides a service end for IEC61850 station control layer network communication service simulation, which comprises: the information acquisition module is used for loading and analyzing the simulation test configuration script to acquire intelligent electronic equipment model data and simulation test behavior parameters required by the total station intelligent electronic equipment simulation communication service;
the simulation signal memory real-time database is used for managing simulation real-time data of the intelligent electronic equipment;
The network communication module is used for the station control layer to perform network communication;
the simulation object creation module is used for creating the communication service simulation objects of the total-station intelligent electronic devices in batches based on all the intelligent electronic devices;
The simulation task execution module is used for formulating and executing IEC61850 communication server simulation tasks which are created in batches in a process mode based on the intelligent electronic equipment model data and the configuration simulation test behavior parameters which are acquired by the network communication module and the information acquisition module aiming at each simulation object created by the simulation object creation module.
Further, the server side further comprises a simulation test configuration script generation module, wherein the simulation test configuration script generation module is used for acquiring configuration information of the total-station SCD model, cutting the configuration information of the total-station SCD model and generating a simulation test configuration script aiming at simulation behaviors of the communication service selected by the substation control layer.
Still further, the simulation test configuration script generating module obtains configuration information of the total station SCD model, cuts the configuration information of the total station SCD model to obtain configuration information for simulation test, and generates a simulation test configuration script for simulation behavior of the communication service selected by the substation control layer, including:
acquiring all intelligent electronic equipment names of the total station and IP addresses and subnet mask configuration information for station control layer network communication;
acquiring all logical device names of intelligent electronic devices;
Acquiring report control block configuration information based on a common data class to which an object having a single data attribute of a specific functional constraint in a data set referenced by the report control block belongs; traversing configuration information of all data sets, and recording data attribute sets of functional constraint FC of each data object in the data sets or indexes of single data attributes with specific functional constraint in the data sets, data reference paths, descriptions of corresponding data objects, public data classes to which the data objects belong and basic data type information of the data attributes in corresponding data templates;
Judging whether the data objects in the data set belong to a remote signaling, remote sensing or remote control data object according to the public data class of each data object, searching for an instantiation configuration of the data object with a control function, judging a control mode of the control object according to a configuration value of the control module, judging whether the control attribute of the control object is remote control, remote sensing or remote setting according to the public data class of each data object, and recording a simulation signal object corresponding to a state value of the control object;
based on the functional constraint and the specific keywords, retrieving the data object of the data integrator, acquiring fault recording information for uploading the protection device, recording the data object for sending the fault recording event, and triggering the fault recording event through simulation;
Based on the data set and the function constraint information of the data object of the data integrator, acquiring protection fixed values and device equipment parameter information, and recording fixed value entries of the simulation object; meanwhile, the number of the fixed value areas which the simulation object should support can be obtained through reading the configuration of the maximum allowable number numOfSGs of the fixed value control blocks under the protection logic device.
4. The IEC 61850 station control layer network communication service simulation server according to claim 1, wherein the simulation test behavior parameters comprise simulation signal automatic state sequence parameters and avalanche test, wherein the simulation signal automatic state sequence parameters comprise simulation signal value change upper and lower limits, simulation signal value interval time and simulation signal value change trigger times, and the avalanche test comprises avalanche signal type, avalanche signal value change upper and lower limits, avalanche signal value change interval time and avalanche duration time.
Further, the server side further comprises a simulation operation man-machine interface, wherein the simulation operation man-machine interface is used for selecting a remote signaling signal and setting a state value or quality of the remote signaling signal to generate a remote signaling value or quality change event; the simulation operation man-machine interface is also used for selecting a telemetry signal and setting a telemetry value or quality of the telemetry signal to generate a telemetry value change or quality change event;
The simulation task execution module is used for selecting a remote signaling signal and setting a state value or quality of the remote signaling signal, generating a remote signaling value or quality change event, sending the remote signaling value or quality change event to an IEC61850 client of the monitoring system through a report service, and checking whether the remote signaling state value or quality is consistent with the simulation or not when the IEC61850 client receives the remote signaling value change event; or selecting the telemetry signal and setting the telemetry value or quality of the telemetry signal, generating a telemetry value change or quality change event, sending the telemetry value or quality change event to the IEC61850 client through the reporting service, and checking whether the change telemetry state value or quality is consistent with the simulation or not by the IEC61850 client after receiving the telemetry value change event.
Further, the server receives a remote control operation command sent by the IEC61850 client by using the remote control request message, responds to the remote control request message, completes a remote signaling deflection response corresponding to the controlled object, and sends a remote signaling change event to the IEC61850 client;
The server side is also used for receiving a remote adjustment command sent by the IEC61850 client side, and the simulation task execution module completes the remote adjustment value change of the controlled object and sends a state value change event to the IEC61850 client side;
And the simulation task execution module is also used for sending a negative response and an additional reason code to the IEC61850 client according to the test strategy, prompting the operation to terminate and finally completing the closed loop of the control operation process.
The server side further comprises a simulation operation man-machine interface, wherein the simulation operation man-machine interface is used for selecting a simulated intelligent electronic device communication service simulation object, the simulation task execution module is used for simulating, generating a wave recording event with a fault sequence number and sending the wave recording event to the IEC61850 client side, the simulation task execution module is also used for simulating, according to the name of the simulated intelligent electronic device communication service simulation object, the fault sequence number and the time scale of the wave recording event, forming a wave recording file name according to a preset format, copying and generating a wave recording file, so that the IEC61850 client side can call through file service, and the IEC61850 client side can confirm whether the wave recording completion event and the wave recording file call are received successfully or not.
Further, the simulation task execution module is further configured to perform a read-write operation and a fixed value zone switching operation on the fixed value of the intelligent electronic device according to the fixed value of the intelligent electronic device transmitted by the IEC61850 client; and performing network communication performance test with the IEC61850 client, network communication stability test with the IEC61850 client and MMS substitution protocol performance comparison test.
In a second aspect, the invention provides an IEC 61850 station control layer network communication service simulation method, which comprises the following steps: loading and analyzing a simulation test configuration script to obtain intelligent electronic equipment model data and simulation test behavior parameters required by the total station intelligent electronic equipment simulation communication service;
Creating a simulation signal memory real-time database according to the intelligent electronic equipment model data; the network communication environment is configured, and the network communication module is used for the station control layer to perform network communication; creating a communication service simulation object of the total-station intelligent electronic device in batches based on all intelligent electronic devices; aiming at each simulation object, formulating and executing IEC61850 communication simulation tasks which are created in batches in a process mode based on network communication environment, intelligent electronic equipment model data and simulation test behavior parameters; and managing the simulation real-time data of the intelligent electronic equipment by using the simulation signal memory real-time database.
Further, the method further comprises the steps of obtaining configuration information of the total station SCD model, cutting the configuration information of the total station SCD model to obtain configuration information for simulation test, and generating a simulation test configuration script aiming at simulation behaviors of communication services selected by a substation control layer of the transformer substation, wherein the configuration information for the simulation test comprises the following steps:
Acquiring all intelligent electronic equipment names of the total station and IP addresses and subnet mask configuration for station control layer network communication;
acquiring all logical device names of intelligent electronic devices;
Acquiring report control block configuration information based on a common data class to which an object having a single data attribute of a specific functional constraint in a data set referenced by the report control block belongs; acquiring data items configured by remote signaling and telemetry data sets from the data sets, and recording indexes, data reference paths, descriptions of corresponding data objects, public data classes to which the data objects belong and basic data type information of the data attributes in corresponding data templates of a data attribute set with the same function constraint FC or a single data attribute with specific function constraint in each data item in the data sets;
Searching for instantiation configuration of a data object with a control function according to a public data class of a data item data object in a remote signaling data set, judging a control mode of the control object according to a configuration value of the control module, judging that a control attribute of the control object is remote control, remote regulation or remote measurement according to the public data class of the data object, and recording a simulation signal object corresponding to a state value of the control object;
searching a data set for uploading fault recording information of the protection device, recording a data object for transmitting the recording completion and the fault sequence number, and triggering a recording event in a simulation mode;
Retrieving a protection fixed value data set and an equipment parameter data set, and recording fixed value entries of the simulation object; meanwhile, the number of fixed value areas which the simulation object should support can be obtained through reading the configuration of the maximum allowable number numOfSGs of the fixed value control blocks under the PROT of the protection logic device.
The beneficial technical effects obtained by the invention are as follows: according to the simulation method, the configuration information of the total station SCD model is cut to obtain the intelligent electronic equipment model data required by the simulation communication service of the total station intelligent electronic equipment and the simulation test behavior parameters are configured, so that a large amount of system resources can be saved; the intelligent electronic equipment IEC61850 concurrent communication simulation behavior of large orders of magnitude in the whole station of the transformer substation can be used, physical equipment can be replaced by the intelligent electronic equipment in batch parallel simulation, the station-level station-control layer network communication environment of the station level can be quickly simulated and constructed, support is provided for system-level integrated debugging and verification in the complex network environment, on one hand, convenience is brought to communication point debugging in engineering debugging, such as remote signaling debugging, remote sensing debugging and remote control debugging, and the working efficiency of signal point debugging is remarkably improved; in addition, the system supports the automatic state sequence and avalanche test function of the simulation signals, and provides an effective means for avalanche performance test and stability test of the substation automation system.
In addition, the simulation tasks of the IED communication server are created in a process mode based on the IED objects in the SCD model file, namely, a plurality of communication service tasks are created by taking the IED as the objects, and the tasks exist in a process mode and are independent and uncoupled.
Drawings
FIG. 1 is a diagram of a simulation system architecture for a total station intelligent electronic device in an exemplary embodiment;
FIG. 2 is a schematic diagram of generating a simulation test configuration script from an SCD model configuration in an embodiment;
fig. 3 is a schematic diagram of the IED simulation principle according to an embodiment.
Detailed Description
The invention is further described below with reference to the drawings and specific examples.
Example 1: the IEC 61850 station control layer network communication service simulation method comprises the following steps:
Step one: and loading and analyzing the simulation test configuration script to obtain intelligent electronic equipment model data and simulation test behavior parameters required by the total station intelligent electronic equipment simulation communication service.
In this embodiment, the following method is adopted in advance to generate the simulation test configuration script, including:
Analyzing a configuration file of the total-station SCD model, cutting configuration information of the total-station SCD model aiming at station-level network communication services (remote signaling, telemetry, remote control, remote regulation and the like, abbreviated as 'four remote'), extracting configuration information required by intelligent electronic equipment (IED) simulation communication services, namely IED model data information related to IED simulation task creation communication services, and configuring simulation test behavior parameters; the simulation test behavior parameters are used for communication simulation behavior control, such as upper and lower limits of value change of an automatic state sequence, interval time of avalanche signals, duration time, signal types and the like.
In order to facilitate rapid loading of model configuration information, in this embodiment, a simulation test configuration script (Test configuration script, TSC) of the communication service is generated according to the extracted configuration information and the simulation test behavior parameters.
Step two: configuring a full-station network communication environment based on the intelligent electronic equipment communication parameters in the simulation test configuration script; creating a communication service simulation object of the total-station intelligent electronic device in batches based on all intelligent electronic devices; based on the four-remote data information and the simulation test behavior parameters in the simulation test configuration script, creating a lightweight simulation signal memory real-time database; the simulation signal memory real-time database is used for managing simulation signal real-time data and externally provides a read-write access interface for the signal real-time data. The simulation signal objects in the simulation signal memory real-time database are created based on the IED model data information, such as a constant value control block, a control object, a data set, and the like.
Step three: and aiming at each simulation object, formulating and executing IEC61850 communication simulation tasks which are created in batches in a process mode based on the network communication environment, the intelligent electronic equipment model data and the configuration simulation test behavior parameters.
As shown in fig. 2, the specific method of the first step is as follows:
1) Analyzing the total station SCD model file (Substation Configuration Description, transformer substation configuration description file) to obtain the names of all intelligent electronic devices (IEd) of the total station and the IP address and subnet mask configuration for station-level network communication;
2) Acquiring all Logic Device (LD) names of the intelligent electronic Device from the total station SCD model file, wherein the Logic Device names are used for reading the Logic Device names by the simulation server in response to IEC61850 client GetServerDirectory service;
3) Acquiring report control block configuration information from the total station SCD model file, and confirming a data set for a remote signaling or telemetry function according to the report control block name and the data set name quoted by the report control block;
4) Acquiring data items configured by remote signaling and telemetry data sets from the data sets, and recording the data attribute set of each data item FCD (FCD with the same function constraint FC; FC, functional constraints) or FCDA (single Data attribute with special functional constraints FC), a Data Reference path (Reference), a description of the corresponding Data Object (DO, data Object), a Common Data class (CDC, common DATA CLASS) to which the Data Object belongs, and a basic Data type (BDA) of the Data Attribute (DA) in the corresponding Data template;
5) According to the CDC of the data items in the remote signaling data set, the instantiation configuration of DO with a control function is searched, whether the data object is a remote control object or a remote adjustment object is judged according to the configuration value of a control mode (CtlModel), and the state remote signaling object corresponding to the control object is recorded.
6) A data set for uploading fault record information of the protection device is retrieved, and data objects for sending record completion (RcdMade) and fault sequence number (FltNum) are recorded for simulation triggering of a record event.
7) Retrieving a protection fixed value data set and an equipment parameter data set, and recording fixed value entries of the simulation object; meanwhile, the number of fixed value areas which the simulation object should support can be obtained through reading numOfSGs configuration of the fixed value control block SGCB under the protection logic device PROT.
8) Configuring simulation test behavior parameters, including selecting a triggered signal, setting a signal change time interval, trigger times and the like, and finally generating a simulation test configuration script.
And analyzing the simulation test configuration script by the communication simulation task, realizing the simulation of the network communication behavior of the station-level network of the all-station IED, and carrying out the communication point test, the signal avalanche test and the system stability test of the automatic system by matching with the automatic monitoring system of the transformer substation.
The second method comprises the following steps:
1) Creating a man-machine interface operation main process of a simulation system, loading a simulation test configuration script, and creating various data operation and display interfaces of remote signaling, remote measurement, remote control, remote regulation and the like of a simulation object by taking the IED as an object; and creating a shared memory by taking the IED as an object, and performing simulation data and information interaction of a man-machine operation main task and an IEC61850 communication simulation task. The man-machine interface operation main process is responsible for loading and analyzing a model file, creating a simulation signal real-time database, and creating various simulation signal views and simulation operations by taking the IED as an object; the main process is also responsible for the creation and management of each communication service sub-process, simulation operation, real-time database management and the like.
2) Based on IED simulation objects, loading test scripts, namely acquiring respective simulation data information and simulation behavior parameters from script files, creating a simulation signal memory real-time database, and creating IEC61850 communication simulation tasks in batches to realize concurrent operation of IEC61850 communication services.
3) And according to the network protocol configuration in the script, completing the initialization of a master SOCKET (SOCKET) of the communication server based on MMS or CMS protocol, and establishing communication connection in response to the communication connection request of the monitoring system IEC61850 client.
In the third step, an IEC61850 simulation task of the intelligent electronic equipment is started, and the function tests of total station intelligent remote signaling, remote measurement, remote control, remote adjustment and the like are realized, and the signal avalanche performance test and the stability test of the monitoring system are realized, wherein the method comprises the following steps:
simulation process I, remote signaling point function debugging: setting a state value of a simulation data object at a human-computer operation interface of a simulation system, generating a remote signaling change event, transmitting the remote signaling change event to an IEC61850 client of a monitoring system by an IEC61850 communication service subtask, and checking whether a remote signaling record is consistent with the description of the simulation object or not by the monitoring system.
Simulation process II, remote measurement and point function debugging: the debugging method is similar to the remote signaling function, telemetry values or quality of the simulation data objects are set on a telemetry data set interface of the simulation server side, change telemetry is generated, then the change telemetry is uploaded through an IEC61850 communication subtask, and observation and confirmation are carried out on a monitoring system interface.
Simulation process III, remote control function debugging: selecting a remote control object to send a remote control operation command in a monitoring system, finishing remote signaling deflection response corresponding to the controlled object by a simulation server, and sending a remote signaling change event to a client; or according to the strategy of the test configuration script, a negative response and an additional reason code are sent to the client, the operation is prompted to terminate, and finally the closed loop of the control operation process is completed.
Simulation process IV, remote adjustment function debugging: selecting a remote adjustment object to send a remote adjustment command in a monitoring system, finishing the change of a remote adjustment value of a controlled object by a simulation server, and sending a change event to a client; or according to the strategy of the test configuration script, a negative response and an additional reason code are sent to the client, the operation is prompted to terminate, and finally the closed loop of the control operation process is completed.
Simulation process V, fault wave recording function debugging: and selecting a simulation IED at a human-computer operation interface of the simulation system, generating a simulation object of the wave recording information, simulating and generating wave recording events of wave recording completion (RcdMade) and a fault sequence number (FltNum), and sending the wave recording events to the client. And meanwhile, according to the name of the simulated IED, the fault serial number and the time mark of the recording event, forming a recording file name according to a preset format, copying to generate a recording file, calling the IEC61850 client through file service, and confirming whether the recording completion event is received or not and whether the recording file calling is successful or not in a monitoring system.
Simulation process six, fixed value functional test: and calling and modifying the fixed value of the simulated IED through the IEC61850 fixed value service in the fixed value operation interface of the monitoring system.
Simulation process seven, monitoring system communication performance test: based on the parameters of the snowcollapse test behavior in script configuration, such as signal triggering time interval, duration time and the like, the avalanche signal of the total station intelligent electronic equipment is simulated, the network communication processing capacity of the monitoring system is tested, and whether the monitoring system operates normally, whether the communication connection with the intelligent electronic equipment is normal, whether the signal is lost, the consumption load condition of CPU and memory resources and the like are observed in the period.
Simulation process eight, monitoring system communication stability test: based on the stability test behavior parameters in the script configuration, the actual running state of the total station intelligent electronic equipment is simulated (the telemetry value is changed frequently, and the telemetry value and the protection event can be changed or not changed for a long time). The intelligent electronic equipment IEC61850 communication service subprocess records abnormal information of communication in operation, such as disconnection, reconnection and the like, and can monitor and analyze the communication operation state of the monitoring system in real time through the diagnosis information.
And a simulation process nine, namely starting IEC61850 clients such as a substation monitoring system and the like, establishing communication connection based on MMS protocol or CMS protocol with a simulation object of the total station intelligent electronic equipment, and performing various operations such as integrated debugging of functions such as four-remote of a substation automation system, network communication performance and stability test of a station control layer system and the like.
MMS replacement protocol (CMS) performance control test: based on the simulation operation interface, different communication protocols (MMS or CMS protocols) are switched and selected, a communication service process is started, communication simulation is carried out on the communication service process and the monitoring system respectively, and network messages are grabbed for comparison analysis. Optionally, the encoding and decoding efficiency and the real-time comparison of message transmission can be performed.
IEC61850 is widely applied to a domestic substation automation system at present, a substation control layer communication protocol (CMS) is adopted to replace an MMS protocol to realize the ACSI service mapping of the substation control layer of IEC61850, the applicability and superiority of the technical scheme of adopting the CMS protocol to replace the MMS protocol are required to be contrasted and demonstrated, the consistency of the integrated configuration of the automation system is verified, and the communication performance and the stability of the substation control layer network after replacing the MMS protocol are tested. At present, the system integration debugging and communication performance testing of the factory level are oriented, meanwhile, the IEC61850 station control layer communication server simulation of the CMS protocol and the MMS protocol is supported, and an effective means is also lacked.
The simulation method of the invention simultaneously supports MMS and a substation control layer domestic CMS communication protocol, can be used for comparing and verifying the applicability and superiority of MMS alternative scheme, and has positive and important significance for promoting the autonomous controllability of the core network protocol stack technology of the domestic substation automation system.
The whole simulation method provided by the invention is used for simulating IEC61850 communication service, realizes the function of a service end of the communication service, and the IEC61850 client can be only a client of the communication service and can also monitor an SCADA machine system (with the function of the IEC61850 communication service), and is not important as a patent description IEC61850 client.
The simulation object is mainly used for testing the communication service capability of the IEC61850 communication service (client) of the monitoring system. The monitoring system obtains model information of intelligent electronic equipment (IED) of the whole station by analyzing SCD (Substation Configuration Description substation configuration description file), wherein the model information mainly comprises remote signaling, remote sensing, remote control, fixed value and the like.
The SCD file is a set of model files of model information CID (instantiation IED model description file) of the total station intelligent electronic equipment, the CID model file is used as IED communication service simulation (service end), and here, the model information of the IED is directly extracted from the SCD model file without the CID model file.
The client communicates with the server based on the communication service to acquire data, wherein the remote signaling or telemetry data passes through the report service, the fixed value passes through the fixed value service (read-write value service), the fault wave-recording waveform file passes through the file service and the like. The problem that the data flow is solved by the IEC61850 communication service does not need to be specifically described.
Based on the same inventive concept, corresponding to the IEC61850 station control layer network communication service simulation method provided by the above embodiment, the specific embodiment of the invention also provides a service end of IEC61850 station control layer network communication service simulation, comprising:
The information acquisition module is used for loading and analyzing the simulation test configuration script to acquire intelligent electronic equipment model data and simulation test behavior parameters required by the total station intelligent electronic equipment simulation communication service;
the simulation signal memory real-time database is used for managing simulation real-time data of the intelligent electronic equipment;
The network communication module is used for the station control layer to perform network communication;
the simulation object creation module is used for creating the communication service simulation objects of the total-station intelligent electronic devices in batches based on all the intelligent electronic devices;
The simulation task execution module is used for formulating and executing IEC61850 communication server simulation tasks which are created in batches in a process mode based on the intelligent electronic equipment model data and the configuration simulation test behavior parameters which are acquired by the network communication module and the information acquisition module aiming at each simulation object created by the simulation object creation module.
It will be clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the above-described system, apparatus/module may refer to the corresponding process in the foregoing method embodiment, which is not repeated herein.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are all within the protection of the present invention.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are all within the protection of the present invention.

Claims (8)

  1. An iec 61850 station control layer network communication service simulation service end, comprising:
    The information acquisition module is used for loading and analyzing the simulation test configuration script to acquire intelligent electronic equipment model data and simulation test behavior parameters required by the total station intelligent electronic equipment simulation communication service;
    the simulation signal memory real-time database is used for managing simulation real-time data of the intelligent electronic equipment;
    The network communication module is used for the station control layer to perform network communication;
    the simulation object creation module is used for creating the communication service simulation objects of the total-station intelligent electronic devices in batches based on all the intelligent electronic devices;
    The simulation task execution module is used for formulating and executing IEC 61850 communication server simulation tasks which are created in batches in a process mode aiming at each simulation object created by the simulation object creation module based on the intelligent electronic equipment model data acquired by the network communication module and the information acquisition module and the configuration simulation test behavior parameters;
    the simulation test configuration script generation module acquires configuration information of the total station SCD model, cuts the configuration information of the total station SCD model to acquire configuration information for simulation test, and generates a simulation test configuration script aiming at simulation behavior of communication service selected by a substation control layer of a transformer substation, comprising:
    acquiring all intelligent electronic equipment names of the total station and IP addresses and subnet mask configuration information for station control layer network communication;
    acquiring all logical device names of intelligent electronic devices;
    Acquiring report control block configuration information based on a common data class to which an object having a single data attribute of a specific functional constraint in a data set referenced by the report control block belongs; traversing configuration information of all data sets, and recording data attribute sets of functional constraint FC of each data object in the data sets or indexes of single data attributes with specific functional constraint in the data sets, data reference paths, descriptions of corresponding data objects, public data classes to which the data objects belong and basic data type information of the data attributes in corresponding data templates;
    Judging whether the data objects in the data set belong to a remote signaling, remote sensing or remote control data object according to the public data class of each data object, searching for an instantiation configuration of the data object with a control function, judging a control mode of the control object according to a configuration value of the control module, judging whether the control attribute of the control object is remote control, remote sensing or remote setting according to the public data class of each data object, and recording a simulation signal object corresponding to a state value of the control object;
    based on the functional constraint and the specific keywords, retrieving the data object of the data integrator, acquiring fault recording information for uploading the protection device, recording the data object for sending the fault recording event, and triggering the fault recording event through simulation;
    Based on the data set and the function constraint information of the data object of the data integrator, acquiring protection fixed values and device equipment parameter information, and recording fixed value entries of the simulation object; meanwhile, the number of the fixed value areas which the simulation object should support can be obtained through reading the configuration of the maximum allowable number numOfSGs of the fixed value control blocks under the protection logic device.
  2. 2. The IEC 61850 station control layer network communication service simulation server according to claim 1, further comprising a simulation test configuration script generation module, wherein the simulation test configuration script generation module is used for obtaining configuration information of the total station SCD model, cutting the configuration information of the total station SCD model, and generating a simulation test configuration script for simulation behaviors of the communication service selected by the substation station control layer.
  3. 3. The IEC 61850 station control layer network communication service simulation server according to claim 1, wherein the simulation test behavior parameters comprise simulation signal automatic state sequence parameters and avalanche test, wherein the simulation signal automatic state sequence parameters comprise simulation signal value change upper and lower limits, simulation signal value interval time and simulation signal value change trigger times, and the avalanche test comprises avalanche signal type, avalanche signal value change upper and lower limits, avalanche signal value change interval time and avalanche duration time.
  4. 4. The IEC 61850 station control layer network communication service simulation service end according to claim 1, wherein the service end further comprises a simulation operation man-machine interface, the simulation operation man-machine interface is used for selecting a remote signaling signal and setting a state value or quality of the remote signaling signal, and generating a remote signaling value or quality change event; the simulation operation man-machine interface is also used for selecting a telemetry signal and setting a telemetry value or quality of the telemetry signal to generate a telemetry value change or quality change event;
    The simulation task execution module is used for selecting a remote signaling signal and setting a state value or quality of the remote signaling signal, generating a remote signaling value or quality change event, sending the remote signaling value or quality change event to an IEC 61850 client of the monitoring system through a report service, and checking whether the remote signaling state value or quality is consistent with the simulation or not when the IEC 61850 client receives the remote signaling value change event; or selecting the telemetry signal and setting the telemetry value or quality of the telemetry signal, generating a telemetry value change or quality change event, sending the telemetry value or quality change event to an IEC 61850 client through a reporting service, and checking whether the change telemetry state value or quality is consistent with the simulation or not by the IEC 61850 client after receiving the telemetry value change event.
  5. 5. The service end of the IEC 61850 station control layer network communication service simulation according to claim 1, wherein the service end receives a remote control operation command sent by an IEC 61850 client by using a remote control request message, responds to the remote control request message, completes a remote signaling deflection response corresponding to a controlled object, and sends a remote signaling change event to the IEC 61850 client;
    The server side is also used for receiving a remote adjustment command sent by the IEC 61850 client side, and the simulation task execution module completes the remote adjustment value change of the controlled object and sends a state value change event to the IEC 61850 client side;
    and the simulation task execution module is also used for sending a negative response and an additional reason code to the IEC 61850 client according to the test strategy, prompting the operation to terminate and finally completing the closed loop of the control operation process.
  6. 6. The service end of IEC 61850 station control layer network communication service simulation according to claim 1, wherein the service end further comprises a simulation operation man-machine interface, the simulation operation man-machine interface is used for selecting a simulation object of the simulation intelligent electronic device communication service simulation, the simulation task execution module is used for simulating, generating wave recording events with fault sequence numbers, and sending the wave recording events to the IEC 61850 client; the simulation task execution module is used for simulating, according to the name of the simulated object of the simulated intelligent electronic device communication service, the fault serial number and the time scale of the wave recording event, forming a wave recording file name according to a preset format, copying and generating a wave recording file, so that an IEC 61850 client can call through file service, and the IEC 61850 client can confirm whether the wave recording completion event is received and whether the wave recording file call is successful.
  7. 7. The service end of IEC 61850 station control layer network communication service simulation according to claim 1, wherein the simulation task execution module is further configured to perform read-write operation and constant value zone switching operation on the constant value of the intelligent electronic device according to the constant value of the intelligent electronic device transmitted by the IEC 61850 client; and performing network communication performance test with the IEC 61850 client, network communication stability test with the IEC 61850 client and MMS substitution protocol performance comparison test.
  8. An iec 61850 station control layer network communication service simulation method, comprising: loading and analyzing a simulation test configuration script to obtain intelligent electronic equipment model data and simulation test behavior parameters required by the total station intelligent electronic equipment simulation communication service;
    Creating a simulation signal memory real-time database according to the intelligent electronic equipment model data; configuring a network communication environment, and configuring a network communication module for network communication of a station control layer; creating a communication service simulation object of the total-station intelligent electronic device in batches based on all intelligent electronic devices; aiming at each simulation object, formulating and executing IEC 61850 communication simulation tasks which are created in batches in a process mode based on network communication environment, intelligent electronic equipment model data and simulation test behavior parameters; managing simulation real-time data of the intelligent electronic equipment by using a simulation signal memory real-time database;
    The method further comprises the steps of obtaining configuration information of the total-station SCD model, cutting the configuration information of the total-station SCD model to obtain configuration information for simulation test, and generating a simulation test configuration script aiming at simulation behaviors of communication services selected by a substation control layer of the transformer substation, wherein the configuration information for the simulation test comprises the following steps:
    Acquiring all intelligent electronic equipment names of the total station and IP addresses and subnet mask configuration for station control layer network communication;
    Acquiring report control block configuration information based on a common data class to which an object having a single data attribute of a specific functional constraint in a data set referenced by the report control block belongs; acquiring data items configured by remote signaling and telemetry data sets from the data sets, and recording indexes, data reference paths, descriptions of corresponding data objects, public data classes to which the data objects belong and basic data type information of the data attributes in corresponding data templates of a data attribute set with the same function constraint FC or a single data attribute with specific function constraint in each data item in the data sets;
    Searching for instantiation configuration of a data object with a control function according to a public data class of a data item data object in a remote signaling data set, judging a control mode of the control object according to a configuration value of the control module, judging that a control attribute of the control object is remote control, remote regulation or remote measurement according to the public data class of the data object, and recording a simulation signal object corresponding to a state value of the control object;
    searching a data set for uploading fault recording information of the protection device, recording a data object for transmitting the recording completion and the fault sequence number, and triggering a recording event in a simulation mode;
    Retrieving a protection fixed value data set and an equipment parameter data set, and recording fixed value entries of the simulation object; meanwhile, the number of fixed value areas which the simulation object should support can be obtained through reading the configuration of the maximum allowable number numOfSGs of the fixed value control blocks under the PROT of the protection logic device.
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