CN109858771B - A method and system for evaluating the interoperability level of smart substations - Google Patents
A method and system for evaluating the interoperability level of smart substations Download PDFInfo
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Abstract
本发明涉及一种智能变电站互操作能力等级评价方法及系统，根据预先制定的互操作能力等级仿真实验系统进行仿真实验得到每级互操作能力实验结果；针对所述每级互操作能力实验结果对智能变电站各等级互操作能力进行评价；所述互操作能力等级包括：孤立级、联通级、功能级、域级和企业级；所述互操作能力等级仿真实验系统基于设定的互操作能力等级分别对互操作能力各等级进行仿真实验。本发明对智能变电站做出适当的整体评价，准确掌握智能变电站业务需求、运行维护需求、检修状态等信息，指导智能变电站信息交互标准化工作。
The present invention relates to a method and system for evaluating the interoperability level of a smart substation. A simulation experiment is performed according to a pre-established interoperability level simulation experiment system to obtain the experimental results of each level of interoperability; the interoperability of each level of the smart substation is evaluated according to the experimental results of each level of interoperability; the interoperability levels include: isolated level, interconnection level, function level, domain level and enterprise level; the interoperability level simulation experiment system performs simulation experiments on each level of interoperability based on the set interoperability level. The present invention makes an appropriate overall evaluation of the smart substation, accurately grasps the business needs, operation and maintenance needs, maintenance status and other information of the smart substation, and guides the standardization of information interaction of the smart substation.
Description
Technical Field
The invention relates to the technical field of substation automation, in particular to an intelligent substation interoperability grade evaluation method and system.
Background
The interconnection and interworking of intelligent devices is the key for realizing intelligent manufacturing, and each industry very important looks at the interconnection and interworking between devices or systems, and the interoperability of the devices or systems reflects the interconnection and interworking performance and function level. In general, a large, complex device or system can be divided into different hierarchical stacks covering different levels of connectivity from underlying communications to distributed functions, business procedures, and thus also interoperable high-low hierarchy. Low level interoperability refers to simple physical connections; high level interoperability refers to the exchange of information to which a communication protocol is applied; the highest level of interoperability fuses business, policy rules and other factors, supporting global decisions and collaboration. It is therefore a goal of each industrial automation system to pursue a higher level of interworking.
At present, several evaluation methods are derived for the analysis of the interoperability of an automation system, the standard of the interoperability grade classification is put forward in LISI (Levels of Information Systems Interoperability) interoperability system reports, and 5 complex interoperability grade evaluation modes are formulated by LISI to measure the exchange and sharing of information and services. The level of interoperability can be divided into 0-4 levels, wherein a level 0 system is in an isolated state, a level 1 is basic communication, a level 2 is basic cooperation, and information is exchanged between different devices; the 3-level shared database is complex cooperation and has single application; the 4-level interoperation is to exchange distributed global information and applications, and simulation interaction can be performed. Each level is focused on four aspects of the device/system's procedures, applications, infrastructure, and data attributes. Different interoperability standards are formulated for different interoperability levels. LISI plays a very good reference role for the interoperability grade evaluation in the field of industrial control of power systems.
Along with the start of large-scale construction of intelligent substations, IEC61850 series communication standards are widely applied to the intelligent substations, and the interconnection level between products of different equipment manufacturers is greatly promoted. Through research and engineering application for many years, the research and application of the intelligent substation reach higher technical level, the information exchange is basically mature and gradually perfected, but the operation maintenance capability and the intelligent level of primary equipment also need to be improved, the possibility that the equipment information is further acquired and shared for analysis decision is limited, and therefore, proper overall evaluation of the intelligent substation cannot be performed.
Disclosure of Invention
In order to solve the problems that in the prior art, the operation maintenance capability and the intelligent level of primary equipment also need to be improved, the possibility that equipment information is further acquired and shared for analysis decision making is limited, and thus proper overall evaluation cannot be performed on an intelligent substation, the invention aims to provide a method and a system for evaluating the level of the interoperability capability of the intelligent substation, which are used for performing proper overall evaluation on the intelligent substation, accurately grasping information such as business requirements, operation maintenance requirements, overhaul states and the like of the intelligent substation and guiding information interaction standardization work of the intelligent substation.
The invention aims at adopting the following technical scheme:
the invention provides an intelligent substation interoperability grade evaluation method, which is improved in that:
Performing simulation experiments according to a preset interoperability grade simulation experiment system to obtain each grade of interoperability experiment result;
evaluating the interoperability of each level of the intelligent substation according to the experimental result of each level of the interoperability;
the interoperability level includes: isolation, communication, function, domain and enterprise levels;
The interoperability grade simulation experiment system respectively carries out simulation experiments on each grade of the interoperability based on the set interoperability grade.
Further: the interoperability level simulation experiment system respectively carries out simulation experiments on each level of interoperability based on the set interoperability level, and comprises the following steps:
the simulation experiment based on the isolation level comprises the following steps: simulation experiments are carried out on an IED equipment monomer or an isolated system without external connection;
The simulation experiment based on the communication level comprises the following steps: aiming at a simulation experiment that an intelligent electronic device IED monomer or system is electrically connected with a simulation test system in a point-to-point or network mode;
the simulation experiment based on the functional level comprises the following steps: information sharing is carried out on the IED or the system and the simulation test system in a point-to-point or local area network mode, and a standardized IEC 61850 communication protocol is adopted for simulation experiments;
The simulation experiment based on the domain level comprises the following steps: the domain system is composed of a plurality of intelligent substation function subsystems, a cross-switch and a routing communication medium through wide area network connection and a simulation test system, and a plurality of simulation test devices access domain-level data at the same time;
The simulation experiment based on the enterprise level comprises the following steps: the method comprises the step of interacting with global systems connected with an enterprise internal dispatching support domain system, a production management domain system, a power transmission and transformation equipment state monitoring domain system, a power market transaction platform domain system and other domain systems.
Further: the simulation experiment that the intelligent electronic device IED monomer or system of the communication level is electrically connected with the simulation test system in a point-to-point or network mode comprises the following steps: the simulation test system can only obtain format text information, information and picture one-dimensional information from intelligent electronic equipment IED monomers or isolated systems of the communication-level system, and the interoperability is passed.
Further: the functional intelligent electronic device IED or system performs information sharing with a simulation test system in a point-to-point or local area network mode, and performs simulation experiments by adopting a standardized IEC 61850 communication protocol, and the method comprises the following steps:
the SV message is used for transmitting sampling value information, the GOOSE message is used for transmitting state quantity information, and an IEC61850 standardized information model is used for constructing an in-station measurement, monitoring, control, protection and metering automation function module; and the interoperation is further performed by the function level measurement, monitoring, control, protection and metering automation function modules when interacting with the simulation test system respectively: the domain level is connected with the simulation test system through a wide area network, and comprises: and when the simulation test device constructs each functional module according to the intelligent substation information according to the communication type and the preset model type, the mutual operation is passed.
Further: when the simulation test device constructs each functional module according to the intelligent substation information and the preset model type, the mutual operation is passed, and the simulation test device comprises:
Allowing multiple domain-level master stations to access intra-domain substation measurement, monitoring, control, protection and metering data simultaneously; the domain-level and simulation test system interaction information supports the domain-level state estimation, tide calculation, AVC and scheduling plan service function module.
Further: the function level measurement, monitoring, control, protection and metering automation function modules respectively interact information with the simulation test system, and the function level measurement, monitoring, control, protection and metering automation function modules comprise:
the measuring module interacts SV sampling value information with the simulation test system to realize calculation of current, voltage, power and phase angle;
The control module interacts GOOSE messages with the simulation test system to obtain state quantity and control the receiving and sending of the messages;
The protection function module interacts SV sampling value information with the simulation test system to realize calculation of current, voltage, power and phase angle;
Monitoring signals of abnormal device, remote signaling deflection and self-checking information are interacted with the simulation test system by the monitoring module;
And the SV sampling value is interacted with the simulation test system by the metering module, and the electric energy and the electric quantity of the simulated device are calculated.
Further: the domain-level and simulation test system interaction information support domain internal state estimation, tide calculation, AVC and dispatch plan service function module comprises:
Extracting a power grid topological structure and measurement data from a simulation test system to a state estimation service function module in an information support domain, and predicting the running state of a power grid in the domain;
Extracting a power grid topological structure, system parameters and measurement data from a simulation test system to a tide calculation module, and calculating a power grid steady-state operation state parameter in a domain;
Extracting a power grid topological structure, system parameters and measurement data from a simulation test system to an AVC service functional module, and performing intra-domain power grid voltage reactive power automatic control;
the scheduling plan is that the main station in the domain performs power scheduling service according to the power grid load balance, the power grid safety margin and the energy consumption factors extracted from the simulation test system to the scheduling plan service functional module.
Further: the method for interacting with global systems connected with an enterprise internal dispatching support domain system, a production management domain system, a power transmission and transformation equipment state monitoring domain system, an electric power market transaction platform domain system and other domain systems comprises the following steps:
the interoperation is through when the intelligent substation information is globally transmitted through a scheduling support domain system, a production management domain system, a power transmission and transformation equipment state monitoring domain system, an electric power market trading platform domain system and other domain systems in the enterprise level.
The invention also provides an intelligent substation interoperability grade evaluation system, which is improved in that:
The simulation module is used for carrying out simulation experiments according to a preset interoperability grade simulation experiment system to obtain each grade of interoperability experiment result;
the evaluation module is used for evaluating the interoperability of each level of the intelligent substation according to the experimental result of the interoperability of each level;
the interoperability level includes: isolation, communication, function, domain and enterprise levels;
The interoperability grade simulation experiment system respectively carries out simulation experiments on each grade of the interoperability based on the set interoperability grade.
Further: the pre-acquired intelligent substation information comprises: electrical information, formatted text information, one-dimensional information of messages of the intelligent electronic device IED monomer or isolated system.
Further: the construction receiving module comprises:
The construction submodule is used for constructing each functional module according to the intelligent substation information according to the communication type and the preset model type by the simulation test device;
And the receiving sub-module is used for receiving the intelligent substation information by the functional modules.
Further: the construction submodule comprises:
The first construction unit is used for transmitting sampling value information by using SV message and transmitting state quantity information by using GOOSE message when the communication type is functional process layer communication, and constructing an in-station measurement, monitoring, control, protection and metering automation function module by using an IEC61850 standardized information model;
the second construction unit is used for allowing a plurality of domain master stations to access the intra-domain data simultaneously, wherein the second construction unit is composed of a plurality of intelligent substation function subsystems crossing communication media when the communication type is domain wide area network communication; and the information supporting state estimation, tide calculation, AGC, AVC and scheduling plan service function modules of all intelligent substations in the domain are built by adopting a common information CIM model.
Further: the receiving sub-module includes:
the first receiving unit is used for respectively receiving intelligent substation information by the measuring, monitoring, controlling, protecting and metering automation functional modules;
the second receiving unit is used for respectively receiving the intelligent substation information from the information supporting state estimation, the tide calculation, the AGC, the AVC and the scheduling plan service function module.
Compared with the closest prior art, the technical scheme provided by the invention has the beneficial effects that:
The invention divides the interoperability of the whole communication process of the intelligent substation into 5 different layers, namely isolation, communication, function, domain and enterprise level, defines the interconnection and interworking range and attribute characteristics of the IED or the system under different interoperability levels, and gives out high-level cooperative targets in each interoperability level. The invention has important guiding significance for planning and standard formulation of communication targets in each interoperation level.
Drawings
FIG. 1 is a flow chart of an intelligent substation interoperability level evaluation method provided by the invention;
FIG. 2 is a schematic diagram of the intelligent substation interoperability grading provided by the invention;
FIG. 3 is a functional level interoperation schematic provided by the present invention;
FIG. 4 is a schematic diagram of domain-level interoperability provided by the invention;
FIG. 5 is a schematic diagram of enterprise level interoperability provided by the invention;
FIG. 6 is a schematic diagram of a communication level interconnection test platform provided by the invention;
FIG. 7 is a schematic diagram of a functional level interoperability test platform provided by the invention;
fig. 8 is a schematic diagram of a domain-level interoperation system provided by the present invention.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. These embodiments of the invention may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed.
Embodiment 1,
The invention provides an intelligent substation interoperability grade evaluation method, a flow chart of which is shown in figure 1, comprising the following steps:
Performing simulation experiments according to a preset interoperability grade simulation experiment system to obtain each grade of interoperability experiment result;
evaluating the interoperability of each level of the intelligent substation according to the experimental result of each level of the interoperability;
the interoperability level includes: isolation, communication, function, domain and enterprise levels;
The interoperability grade simulation experiment system respectively carries out simulation experiments on each grade of the interoperability based on the set interoperability grade.
Further: the interoperability level simulation experiment system respectively carries out simulation experiments on each level of interoperability based on the set interoperability level, and comprises the following steps:
the simulation experiment based on the isolation level comprises the following steps: simulation experiments are carried out on an IED equipment monomer or an isolated system without external connection;
The simulation experiment based on the communication level comprises the following steps: aiming at a simulation experiment that an intelligent electronic device IED monomer or system is electrically connected with a simulation test system in a point-to-point or network mode;
the simulation experiment based on the functional level comprises the following steps: information sharing is carried out on the IED or the system and the simulation test system in a point-to-point or local area network mode, and a standardized IEC 61850 communication protocol is adopted for simulation experiments;
The simulation experiment based on the domain level comprises the following steps: the domain system is composed of a plurality of intelligent substation function subsystems, a cross-switch and a routing communication medium through wide area network connection and a simulation test system, and a plurality of simulation test devices access domain-level data at the same time;
The simulation experiment based on the enterprise level comprises the following steps: the method comprises the step of interacting with global systems connected with an enterprise internal dispatching support domain system, a production management domain system, a power transmission and transformation equipment state monitoring domain system, a power market transaction platform domain system and other domain systems.
Further: the simulation experiment that the intelligent electronic device IED monomer or system of the communication level is electrically connected with the simulation test system in a point-to-point or network mode comprises the following steps: the simulation test system can only obtain format text information, information and picture one-dimensional information from intelligent electronic equipment IED monomers or isolated systems of the communication-level system, and the interoperability is passed.
Further: the functional intelligent electronic device IED or system performs information sharing with a simulation test system in a point-to-point or local area network mode, and performs simulation experiments by adopting a standardized IEC 61850 communication protocol, and the method comprises the following steps:
the SV message is used for transmitting sampling value information, the GOOSE message is used for transmitting state quantity information, and an IEC61850 standardized information model is used for constructing an in-station measurement, monitoring, control, protection and metering automation function module; and the interoperation is further performed by the function level measurement, monitoring, control, protection and metering automation function modules when interacting with the simulation test system respectively: the domain level is connected with the simulation test system through a wide area network, and comprises: and when the simulation test device constructs each functional module according to the intelligent substation information according to the communication type and the preset model type, the mutual operation is passed.
Further: when the simulation test device constructs each functional module according to the intelligent substation information and the preset model type, the mutual operation is passed, and the simulation test device comprises:
Allowing multiple domain-level master stations to access intra-domain substation measurement, monitoring, control, protection and metering data simultaneously; the domain-level and simulation test system interaction information supports the domain-level state estimation, tide calculation, AVC and scheduling plan service function module.
Further: the function level measurement, monitoring, control, protection and metering automation function modules respectively interact information with the simulation test system, and the function level measurement, monitoring, control, protection and metering automation function modules comprise:
the measuring module interacts SV sampling value information with the simulation test system to realize calculation of current, voltage, power and phase angle;
The control module interacts GOOSE messages with the simulation test system to obtain state quantity and control the receiving and sending of the messages;
The protection function module interacts SV sampling value information with the simulation test system to realize calculation of current, voltage, power and phase angle;
Monitoring signals of abnormal device, remote signaling deflection and self-checking information are interacted with the simulation test system by the monitoring module;
And the SV sampling value is interacted with the simulation test system by the metering module, and the electric energy and the electric quantity of the simulated device are calculated.
Further: the domain-level and simulation test system interaction information support domain internal state estimation, tide calculation, AVC and dispatch plan service function module comprises:
Extracting a power grid topological structure and measurement data from a simulation test system to a state estimation service function module in an information support domain, and predicting the running state of a power grid in the domain;
Extracting a power grid topological structure, system parameters and measurement data from a simulation test system to a tide calculation module, and calculating a power grid steady-state operation state parameter in a domain;
Extracting a power grid topological structure, system parameters and measurement data from a simulation test system to an AVC service functional module, and performing intra-domain power grid voltage reactive power automatic control;
the scheduling plan is that the main station in the domain performs power scheduling service according to the power grid load balance, the power grid safety margin and the energy consumption factors extracted from the simulation test system to the scheduling plan service functional module.
Further: the method for interacting with global systems connected with an enterprise internal dispatching support domain system, a production management domain system, a power transmission and transformation equipment state monitoring domain system, an electric power market transaction platform domain system and other domain systems comprises the following steps:
the interoperation is through when the intelligent substation information is globally transmitted through a scheduling support domain system, a production management domain system, a power transmission and transformation equipment state monitoring domain system, an electric power market trading platform domain system and other domain systems in the enterprise level.
The intelligent substation automation system consists of a plurality of equipment monomers, a communication network, a monitoring system and a remote system, and information interaction is carried out through the remote system and the systems such as a regulation master station, a production management system, a power transmission and substation equipment state monitoring master station, a metering master station and the like. The invention selects four factors of infrastructure communication facilities, functions, data and policy rules as technical factors for evaluating the interoperability of the intelligent substation. The infrastructure communication facility refers to a software and hardware platform of a device or a system, a communication system, and information security measures, wherein the communication system comprises a TCP/IP, UDP, FTP bottom layer protocol; policy rules refer to production management regulations, legal policies, personnel arrangements and training plans.
The invention divides the level of the interoperation capability of the intelligent substation into 5 levels, namely an isolated level, a connected level, a functional level, a domain level and an enterprise level. The adjacent two levels are in a parent-child relationship, and the larger the level is, the stronger the interoperability of the device or system is, as shown in fig. 2.
(1) Isolation stage: only intelligent electronic devices (INTELLIGENT ELECTRONIC DEVICE, IEDs) of intelligent substations or the systems themselves are included, the devices or systems are completely in an isolated and closed state, and no other devices or systems are connected or exchange information with the devices or systems. The isolated level platform corresponds to an IED device monomer or an isolated system without external connection and consists of a hardware platform and an operating system, wherein the operating system can be a Unix/Linux system or a Windows system.
(2) And (3) communication stage: the IED or the system has simple electrical connection relation with other devices in a point-to-point or network mode, and only provides simple one-dimensional information interaction of text, message mail, pictures and the like, wherein the type of information interaction is isomorphic information. The communication level interoperation platform comprises a communication infrastructure module, a communication network service module, an underlying protocol module, an information security module, a protocol/grammar and an information transmission message module, wherein the information sharing capability is mainly supported by the factor of the infrastructure communication module. The communication infrastructure module comprises equipment hardware, a switch and a router, the bottom layer protocol module comprises a TCP/IP, UDP, FTP protocol, the information security module provides security measures for inhibiting denial of service attack, network scanning, network spoofing and virus Trojan horse, and the protocol/grammar and information transmission message module comprises a GOOSE protocol and an SV protocol.
The subsystem formed by the IEDs or the systems which are connected in pairs is a communication-level system, and is connected in a point-to-point or network mode, and GOOSE, SV messages and files are transmitted between the two systems.
(3) Functional level: the IED or system performs information sharing with the outside through a point-to-point or local area network mode, adopts relatively complex medium exchange, and applies a normalized data model to allow a logic data model to cross program modules, namely a standardized communication protocol. The primary goal of the communication protocol at the connected level is to achieve interoperability within the station. The information interaction type can be isomorphic information or heterogeneous information. The focus of this level of interoperability consideration is the implementation of the functionality. The function level system is constructed on the basis of a communication level and also comprises a communication module and a distributed function module, wherein the communication module is composed of a communication information model and a communication service interface/service mapping; the distributed functional modules are formed by functional modules.
The integrated monitoring system of the intelligent substation is a functional level system. As shown in fig. 3, the intelligent substation IED is connected to other devices or systems through a process layer network and a bay layer network, uses SV messages to transmit sampling value information, uses GOOSE messages to transmit state quantity information, and uses an IEC61850 standardized information model to construct in-station measurement, monitoring, control, protection and metering automation functions, where the information model can adapt to each functional program module.
(4) Domain level: the domain system is connected through a wide area network, consists of a plurality of intelligent substation functional subsystems which cross communication media (switches and routes), and allows a plurality of users to access data at the same time, and information is shared among a plurality of independent applications. The domain level has a domain data model which can be shared in the whole domain, and the information interaction and the database replication are directly carried out between the databases. The main goal of domain-level interoperability is to integrate all information of the region, supporting intra-domain analysis decisions. The domain-level system also considers the service module on the basis of the communication-level system, and realizes the functions of remote monitoring, remote control and remote maintenance in the area.
The dispatch support system is a domain-level system. As shown in fig. 4, the plurality of intelligent substation function level subsystems form a domain level dispatching support system, a unified CIM (Common Information Model, CIM) model is applied in the domain level system, and service functions such as information support state estimation, tide calculation, AGC, AVC, dispatching plan and the like of all intelligent substations in the domain are performed.
(5) Enterprise level: namely, the system is connected with an enterprise internal dispatching support domain system, a production management domain system, a power transmission and transformation equipment state monitoring domain system, a power market transaction platform domain system and other domain systems, and describes global interoperability under an enterprise-level overall environment. The system can interoperate across multiple domain systems using a distributed global information space, multiple users access or interact application information simultaneously, data and applications can be fully shared, and the data has a general and global description and illustration. This level of interoperability pursues cross-functional and cross-domain information space interoperability. The enterprise-level system also considers a policy procedure module based on the domain-level system, wherein the policy procedure comprises management rules, market policies, personnel arrangement, laws and regulations and the like.
As shown in fig. 5, global information can be interacted between the subsystems of each domain of the enterprise-level system of the power system, so as to make scientific and reasonable analysis decisions for the enterprise level.
Embodiment II,
The following examples are used to verify the application scenario of the method:
The intelligent substation interoperation simulation testing device is a group of testing tools for simulating and testing the whole communication and information interaction process of the intelligent substation. According to the method for classifying the interoperation capacity level, a communication level, a function level and a domain level interoperation simulation test device are respectively built. The device or the communication network can provide basic TCP/IP, UDP, CAN buses, FTP file transmission, HTM, serial and message services. The test platform is shown in fig. 6.
The function level test is based on an intra-station communication network, a process layer device and a spacer layer device, and realizes the test of monitoring functions such as four-remote, interlocking, protection and the like in the station. Standardization of information models and services is a key to this level of interoperability implementation, so standard consistency testing and information model normalization detection are focused on, and functional testing is performed simultaneously. The detection platform consists of an information model standardized detection tool, a standard consistency test tool and a simulation device. As shown in fig. 7.
The domain level test refers to the detection of information interaction between an intelligent substation and a regulation master station, and comprises a telecontrol function and a protocol conversion function which are related to the substation. The detection platform is composed of an in-station process layer device, a spacer layer device, a station control layer device, a process layer network, a station control layer network and a simulation scheduling master station, as shown in fig. 8.
The intelligent substation interoperation simulation testing device verifies the communication-level interoperation capability, the function-level test verifies the function-level interoperation capability, and the domain-level test verifies the domain-level interoperation capability.
Third embodiment,
Based on the same inventive concept, the invention also provides an intelligent substation interoperability grade evaluation system, which is improved in that:
The simulation module is used for carrying out simulation experiments according to a preset interoperability grade simulation experiment system to obtain each grade of interoperability experiment result;
the evaluation module is used for evaluating the interoperability of each level of the intelligent substation according to the experimental result of the interoperability of each level;
the interoperability level includes: isolation, communication, function, domain and enterprise levels;
The interoperability grade simulation experiment system respectively carries out simulation experiments on each grade of the interoperability based on the set interoperability grade.
Further: the pre-acquired intelligent substation information comprises: electrical information, formatted text information, one-dimensional information of messages of the intelligent electronic device IED monomer or isolated system.
Further: the construction receiving module comprises:
The construction submodule is used for constructing each functional module according to the intelligent substation information according to the communication type and the preset model type by the simulation test device;
And the receiving sub-module is used for receiving the intelligent substation information by the functional modules.
Further: the construction submodule comprises:
The first construction unit is used for transmitting sampling value information by using SV message and transmitting state quantity information by using GOOSE message when the communication type is functional process layer communication, and constructing an in-station measurement, monitoring, control, protection and metering automation function module by using an IEC61850 standardized information model;
the second construction unit is used for allowing a plurality of domain master stations to access the intra-domain data simultaneously, wherein the second construction unit is composed of a plurality of intelligent substation function subsystems crossing communication media when the communication type is domain wide area network communication; and the information supporting state estimation, tide calculation, AGC, AVC and scheduling plan service function modules of all intelligent substations in the domain are built by adopting a common information CIM model.
Further: the receiving sub-module includes:
the first receiving unit is used for respectively receiving intelligent substation information by the measuring, monitoring, controlling, protecting and metering automation functional modules;
the second receiving unit is used for respectively receiving the intelligent substation information from the information supporting state estimation, the tide calculation, the AGC, the AVC and the scheduling plan service function module.
The invention provides an intelligent substation interoperability grade evaluation method and system, which divide the interoperability of an intelligent substation automation system into a plurality of grades, and define attribute and characteristic factors which are supposed to be possessed by each grade of interoperability, thereby being beneficial to providing targeted standards and specifications to guide standardized work of intelligent substation interconnection.
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 above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, one skilled in the art may make modifications and equivalents to the specific embodiments of the present invention, and any modifications and equivalents not departing from the spirit and scope of the present invention are within the scope of the claims of the present invention.
Claims (11)
1. An intelligent substation interoperability grade evaluation method is characterized in that:
Performing simulation experiments according to a preset interoperability grade simulation experiment system to obtain each grade of interoperability experiment result;
evaluating the interoperability of each level of the intelligent substation according to the experimental result of each level of the interoperability;
the interoperability level includes: isolation, communication, function, domain and enterprise levels;
The interoperability grade simulation experiment system respectively carries out simulation experiments on each grade of the interoperability on the basis of the set interoperability grade;
the interoperability level simulation experiment system respectively carries out simulation experiments on each level of interoperability based on the set interoperability level, and comprises the following steps:
the simulation experiment based on the isolation level comprises the following steps: simulation experiments are carried out on an IED equipment monomer or an isolated system without external connection;
The simulation experiment based on the communication level comprises the following steps: aiming at a simulation experiment that an intelligent electronic device IED monomer or system is electrically connected with a simulation test system in a point-to-point or network mode;
the simulation experiment based on the functional level comprises the following steps: information sharing is carried out on the IED or the system and the simulation test system in a point-to-point or local area network mode, and a standardized IEC 61850 communication protocol is adopted for simulation experiments;
The simulation experiment based on the domain level comprises the following steps: the domain system is composed of a plurality of intelligent substation function subsystems, a cross-switch and a routing communication medium through wide area network connection and a simulation test system, and a plurality of simulation test devices access domain-level data at the same time;
The simulation experiment based on the enterprise level comprises the following steps: the method comprises the step of interacting with global systems connected with an enterprise internal dispatching support domain system, a production management domain system, a power transmission and transformation equipment state monitoring domain system, a power market transaction platform domain system and other domain systems.
2. The interoperability level assessment method according to claim 1, wherein: the simulation experiment that the intelligent electronic device IED monomer or system of the communication level is electrically connected with the simulation test system in a point-to-point or network mode comprises the following steps: the simulation test system can only obtain format text information, information and picture one-dimensional information from intelligent electronic equipment IED monomers or isolated systems of the communication-level system, and the interoperability is passed.
3. The interoperability level assessment method according to claim 1, wherein: the functional intelligent electronic device IED or system performs information sharing with a simulation test system in a point-to-point or local area network mode, and performs simulation experiments by adopting a standardized IEC 61850 communication protocol, and the method comprises the following steps:
The SV message is used for transmitting sampling value information, the GOOSE message is used for transmitting state quantity information, and an IEC61850 standardized information model is used for constructing an in-station measurement, monitoring, control, protection and metering automation function module; and interoperation is passed when the function level measurement, monitoring, control, protection and metering automation function modules respectively interact with the simulation test system.
4. The interoperability level assessment method according to claim 1, wherein: the domain level is connected with the simulation test system through a wide area network, and comprises: and when the simulation test device constructs each functional module according to the intelligent substation information according to the communication type and the preset model type, the mutual operation is passed.
5. The interoperability evaluation method of claim 3, wherein: when the simulation test device constructs each functional module according to the intelligent substation information and the preset model type, the mutual operation is passed, and the simulation test device comprises:
Allowing multiple domain-level master stations to access intra-domain substation measurement, monitoring, control, protection and metering data simultaneously; the domain-level and simulation test system interaction information supports the domain-level state estimation, tide calculation, AVC and scheduling plan service function module.
6. The interoperability level assessment method of claim 3, wherein: the function level measurement, monitoring, control, protection and metering automation function modules respectively interact information with the simulation test system, and the function level measurement, monitoring, control, protection and metering automation function modules comprise:
the measuring module interacts SV sampling value information with the simulation test system to realize calculation of current, voltage, power and phase angle;
The control module interacts GOOSE messages with the simulation test system to obtain state quantity and control the receiving and sending of the messages;
The protection function module interacts SV sampling value information with the simulation test system to realize calculation of current, voltage, power and phase angle;
Monitoring signals of abnormal device, remote signaling deflection and self-checking information are interacted with the simulation test system by the monitoring module;
And the SV sampling value is interacted with the simulation test system by the metering module, and the electric energy and the electric quantity of the simulated device are calculated.
7. The interoperability level assessment method according to claim 5, wherein: the domain-level and simulation test system interaction information support domain internal state estimation, tide calculation, AVC and dispatch plan service function module comprises:
Extracting a power grid topological structure and measurement data from a simulation test system to a state estimation service function module in an information support domain, and predicting the running state of a power grid in the domain;
Extracting a power grid topological structure, system parameters and measurement data from a simulation test system to a tide calculation module, and calculating a power grid steady-state operation state parameter in a domain;
Extracting a power grid topological structure, system parameters and measurement data from a simulation test system to an AVC service functional module, and performing intra-domain power grid voltage reactive power automatic control;
the scheduling plan is that the main station in the domain performs power scheduling service according to the power grid load balance, the power grid safety margin and the energy consumption factors extracted from the simulation test system to the scheduling plan service functional module.
8. The interoperability level assessment method according to claim 1, wherein: the method for interacting with global systems connected with an enterprise internal dispatching support domain system, a production management domain system, a power transmission and transformation equipment state monitoring domain system, an electric power market transaction platform domain system and other domain systems comprises the following steps:
the interoperation is through when the intelligent substation information is globally transmitted through a scheduling support domain system, a production management domain system, a power transmission and transformation equipment state monitoring domain system, an electric power market trading platform domain system and other domain systems in the enterprise level.
9. An intelligent substation interoperability grade evaluation method system is characterized in that:
The simulation module is used for carrying out simulation experiments according to a preset interoperability grade simulation experiment system to obtain each grade of interoperability experiment result;
the evaluation module is used for evaluating the interoperability of each level of the intelligent substation according to the experimental result of the interoperability of each level;
the interoperability level includes: isolation, communication, function, domain and enterprise levels;
The interoperability grade simulation experiment system respectively carries out simulation experiments on each grade of the interoperability on the basis of the set interoperability grade;
constructing a receiving module, comprising:
The construction submodule is used for constructing each functional module according to the intelligent substation information according to the communication type and the preset model type by the simulation test device;
The receiving sub-module is used for receiving the intelligent substation information by the functional modules;
The construction submodule comprises:
The first construction unit is used for transmitting sampling value information by using SV message and transmitting state quantity information by using GOOSE message when the communication type is functional process layer communication, and constructing an in-station measurement, monitoring, control, protection and metering automation function module by using an IEC61850 standardized information model;
The second construction unit is used for allowing a plurality of domain master stations to access the intra-domain data simultaneously, wherein the second construction unit is composed of a plurality of intelligent substation function subsystems crossing communication media when the communication type is domain wide area network communication; and the information supporting state estimation, tide calculation, AGC, AVC and scheduling plan service function modules of all intelligent substations in the domain are built by adopting a common information CIM model.
10. The interoperability level assessment system of claim 9, wherein: the intelligent substation information acquired in advance comprises: electrical information, formatted text information, one-dimensional information of messages of the intelligent electronic device IED monomer or isolated system.
11. The interoperability level assessment system of claim 9, wherein: the receiving sub-module includes:
the first receiving unit is used for respectively receiving intelligent substation information by the measuring, monitoring, controlling, protecting and metering automation functional modules;
the second receiving unit is used for respectively receiving the intelligent substation information from the information supporting state estimation, the tide calculation, the AGC, the AVC and the scheduling plan service function module.
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