CN103731320B - Simulation testing platform for electrical equipment and secondary device and system based on IEC61850 bus - Google Patents

Abstract

A simulation test platform for power equipment, secondary devices and systems based on IEC61850 bus, including system simulation module (1), MMS client interface (2), IEC61850 bus (3), IED simulator (4), secondary device, MMS server interface (8), GOOSE subscription/publishing interface (9), SMV subscription/publishing interface (10), power equipment simulation module (11) and power equipment. The system simulation module (1) exchanges information with the IEC61850 bus (3) through the MMS client interface (2), the IED simulator (4) and the secondary device exchange information with the IEC61850 bus (3), and the power equipment simulation module (11) passes The MMS server interface (8) exchanges information with the IED simulator (4), and the power equipment simulation module (11) exchanges information with the secondary device through the GOOSE subscription/publishing interface (9) and the SMV subscription/publishing interface (10). The invention can realize the characteristic test, capability evaluation and development integration of various electric equipments, secondary devices and systems.

Description

Simulation test platform for power equipment, secondary devices and systems based on IEC61850 bus

technical field

The invention relates to a simulation test platform for power equipment, secondary devices and systems, in particular to a simulation test platform for power equipment, secondary devices and systems based on the IEC61850 bus.

Background technique

The rapid development of large-scale integrated circuit technology has made advanced and powerful microprocessors a reality, thereby promoting the fundamental innovation of substation automation systems: secondary devices (automatic control, monitoring, metering, measurement, protection and other substation bay layer devices) ) from electro-mechanical devices to digital devices. Practice has proved that the use of intelligent electronic devices (Intelligent Electronic Devices, IEDs) in the secondary device to complete the required complex functions (such as monitoring, control, relay protection, etc.) new requirements for efficient communication and interoperability capabilities. The IED test system can simulate algorithms and data, and it usually uses the object-oriented communication protocol system-OPC communication mode to interact the simulation information with the device and system under test. When the device and system under test do not support OPC communication, relevant preprocessing is required, and the simulation test is carried out when the OPC communication function is supported.

IEC61850 is an international standard applied to automation communication networks and systems of electric power enterprises. It adopts object-oriented modeling technology and flexible and extensible communication architecture, and provides the principles and models of basic communication structures of multi-type devices, abstract communication service interfaces (Abstract Communication Service Interfaces, ACSI), and common data classes (Common DataClasses, CDC) , Compatible with logical node (Logical Node, LN) class and data class. Based on the standardized language, semantics, services, protocols and architecture provided by IEC61850, various power equipment, secondary devices and their smart parks, microgrids, substations, smart distribution networks, medium voltage grids and other systems can have Good feature self-describing ability, meeting the openness and interoperability requirements of various applications. Compared with OPC communication, IEC61850 has the advantages of not being limited by OLE technology, adapting to the needs of embedded environments, and supporting the transmission of transient information (sampled values and events). Therefore, applying IEC61850 to power equipment, secondary devices and systems, and building a simulation test platform for power equipment, secondary devices and systems based on the IEC61850 bus, can perform characteristic tests of power equipment, secondary devices and systems more efficiently , capability assessment, and development integration.

At present, the simulation test platform based on the IEC61850 communication protocol mainly serves the performance test of the secondary device, and a real-time digital simulator (Real-Time Digital Simulator, RTDS) is usually used to establish a simulation test environment for the secondary device. When the simulation test platform is running, an external GTNET-SV board is required to convert the corresponding simulation output into an information frame conforming to IEC61850 Sampled Measured Value (SMV), and an external GTNET-GSE board is required to convert the corresponding simulation output into an information frame conforming to IEC61850 The information frame of the Generic Object Oriented SubstationEvent (GOOSE) oriented substation event is issued to the secondary device to be tested. After the secondary device is processed, the corresponding processing results are fed back to the RTDS to complete the digital-analog hybrid simulation test. This kind of emulation test platform needs to be equipped with corresponding expansion boards, the cost is high, and its test operation is relatively complicated.

IEC 61850 GOOSE and SMV information exchange is one of the components of the IEC 61850 communication system, and the more widely used IEC 61850 Manufacturing Message Specification (MMS) information exchange has not yet been effective in the above-mentioned types of simulation test platforms implement. At the same time, in addition to realizing the performance test of the secondary device, there is no intelligent and integrated solution for the simulation test of the more comprehensive power equipment and the system composed of various types of power equipment and the secondary device.

Contents of the invention

The purpose of the present invention is to reduce the cost and complexity of the existing secondary device simulation test technology, integrate the comprehensive information interaction capability of IEC 61850, and form a comprehensive, intelligent and convenient simulation test for multiple types of power equipment, secondary devices and systems Technology, a simulation test platform for power equipment, secondary devices and systems based on IEC 61850 bus is proposed. The invention can improve the research and development efficiency of power equipment, secondary devices and systems, and carry out characteristic testing, capability evaluation and Development and integration work.

The invention includes system simulation module, MMS client interface, IEC 61850 bus, IED simulator, secondary device, MMS server interface, GOOSE subscription/publishing interface, SMV subscription/publishing interface, power equipment simulation module and actual power equipment. The system simulation module performs information interaction with the IEC 61850 bus through the MMS client interface; the IED simulator and the secondary device perform information interaction with the IEC 61850 bus; the power equipment simulation module performs information interaction with the IED simulator through the MMS server interface ; The power equipment simulation module performs information interaction with the secondary device through the GOOSE subscription/publishing interface and the SMV subscription/publishing interface.

The IEC 61850 bus involved in the present invention may be, but not limited to, communication networks such as single network and dual network supporting the IEC 61850 communication protocol.

The power equipment involved in the present invention may be, but not limited to, distributed power generation, protection switches, transformers, energy storage, thermoelectric loads and other equipment.

The power equipment simulation module involved in the present invention can be in the form of but not limited to digital simulation, analog simulation, digital-analog hybrid simulation, etc., and can include but not limited to simulation software such as Matlab, RTlab, RTDS, and DIgSILENT. According to the simulation test requirements of the power equipment object, the power equipment simulation module constructs the corresponding simulation model of the power equipment, forms a complete and programmable simulation data source, and transmits information through the MMS server interface and the corresponding IED simulator in the form of offline or online Interactively simulate the operating characteristics of multiple types of power equipment, and efficiently complete performance tests and evaluations related to power equipment.

The secondary devices involved in the present invention can be, but not limited to, IEDs such as automatic control, monitoring, metering, measurement, and protection. The power equipment simulation module builds a performance test simulation environment for secondary devices, forms a complete and programmable source of simulation data, and publishes to secondary devices through GOOSE subscription/publishing interfaces and SMV subscription/publishing interfaces. After the secondary device analyzes and processes according to its own functions, the output information is fed back to the power equipment simulation module through the GOOSE subscription/publishing interface and the SMV subscription/publishing interface. Different functions and types of secondary devices carry out related performance tests and evaluations.

The system simulation module involved in the present invention can be in the form of but not limited to digital simulation, analog simulation, digital-analog hybrid simulation, etc., and can include but not limited to simulation software such as Matlab, RTlab, RTDS, and DIgSILENT. According to the simulation test needs of the system object, the system simulation module constructs the corresponding simulation model of the system. The system simulation module obtains the operation information of each part of the system from the IEC61850 bus through the MMS client interface. According to the different test functions and objectives of the system, it generates the corresponding management information of each part of the system through intelligent optimization, complex decision-making or coordination management, and passes The MMS client interface sends to the IEC 61850 bus. The management information is received by the IED simulator and the secondary device connected to the IEC 61850 bus and sent to the simulation model of each power equipment or the actual power equipment, which can realize the mixed simulation test of digital and analog, and use convenient and intelligent implementation methods to test different functions, This type of system carries out relevant algorithm verification, function design and testing, efficiency evaluation and other work.

The systems involved in the present invention may be, but not limited to, types such as smart parks, microgrids, substations, smart distribution networks, and medium-voltage power grids.

In addition, a simulation test platform for power equipment, secondary devices and systems based on the IEC 61850 bus proposed by the present invention also has the following advantages:

(1) The simulation test platform can conveniently and intelligently carry out characteristic testing, capability evaluation and development integration of various types of power equipment, secondary devices and systems, and significantly improve the research and development efficiency of power equipment, secondary devices and systems.

(2) Part of the power equipment can perform characteristic simulation in the form of simulation model, and conduct mixed operation tests with other actual power equipment. On this basis, the simulation test platform can provide flexible and diverse test structures and schemes, and different types of functional tests , Calculation analysis and other work can be quickly deployed and tested and verified, which greatly reduces the difficulty and workload of system integration development.

(3) Different types of power equipment, secondary devices and systems can be connected to the IEC61850 bus only by supporting the IEC61850 communication protocol. On this basis, the simulation test platform can flexibly expand the corresponding The simulation test module has strong expansibility.

Description of drawings

Fig. 1 is the simulation test platform structure of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Figure 1 shows the simulation test platform of the present invention based on the IEC 61850 bus for electrical equipment, secondary devices and systems. The simulation test platform includes a system simulation module 1, an MMS client interface 2, an IEC 61850 bus 3, an IED simulator 4, a plurality of secondary devices, an MMS server interface 8, a GOOSE subscription/publishing interface 9, an SMV subscription/ Publishing interface 10, power device simulation module 11 and multiple power devices.

System simulation module 1, such as digital simulation, analog simulation, digital-analog mixed simulation, etc., can include simulation software such as Matlab, RTlab, RTDS, DIgSILENT, etc., and build the corresponding simulation model of the system according to the simulation test needs of different system objects, and pass MMS The client interface 2 exchanges information with the IEC61850 bus 3 . The system simulation module 1 obtains the information transmitted by the IEC 61850 bus 3 through the MMS client interface 2, analyzes and obtains the overall operating data of the system, and further processes according to different test functions and objectives of the system, through intelligent optimization, complex decision-making or coordination management, etc., to generate The corresponding management information of each part of the system is sent to the IEC 61850 bus 3 through the MMS client interface 2 . The management information is received by the IED simulator 4 and each secondary device and delivered to each power equipment simulation model or actual power equipment, which can realize digital-analog hybrid simulation test, and then complete different functions and types of systems, such as smart parks, micro-grids, and substations Algorithm verification, function design and testing, efficiency evaluation, etc. of smart distribution network and medium voltage power grid.

The MMS client interface 2 establishes the mapping relationship with each simulation model in the system simulation module 1, and provides communication services according to the IEC61850MMS communication specification during operation. After receiving the information transmitted by the IEC61850 bus 3, it parses and feeds back to the system simulation module according to the mapping relationship 1. When the MMS client interface 2 receives the simulation output information of the system simulation module 1, it analyzes and sends it to the IEC61850 bus 3 according to the mapping relationship.

The power equipment simulation module 11, such as digital simulation, analog simulation, digital-analog hybrid simulation, etc., can include simulation software such as Matlab, RTlab, RTDS, DIgSILENT, etc., and build corresponding simulation models of power equipment according to the simulation test needs of different power equipment objects, Form multiple types of power equipment, such as distributed power generation, protection switches, transformers, energy storage, thermoelectric loads, etc., with complete operating characteristics and programmable analog data sources, which can be connected offline or online through MMS server interface 8 and IED simulator 4 carry out information exchange. The IED simulator 4 performs information interaction with the IEC61850 bus 3, provides communication services with the IEC61850MMS communication specification during operation, obtains the simulation output information of the power equipment simulation module 11 through the MMS server interface 8, analyzes and sends it to the IEC61850 bus 3; when the IED simulates When the device 4 acquires the information transmitted by the IEC61850 bus 3, it parses it and feeds it back to the power equipment simulation module 11 through the MMS server interface 8. Based on the above operations, the operating characteristics of multiple types of electrical equipment can be simulated, and then the performance testing and evaluation of different functions and types of electrical equipment can be completed.

The MMS server-side interface 8 establishes the mapping relationship between the IED simulator 4 and each simulation model in the power equipment simulation module 11, obtains the simulation output information of each simulation model in the power equipment simulation module 11 during operation, analyzes and sends it to the IED simulation according to the mapping relationship device 4; when the MMS server interface 8 receives the information sent by the IED simulator 4, it parses it and feeds it back to the power equipment simulation module 11 according to the mapping relationship.

Secondary devices, such as automatic control, monitoring, metering, measurement, protection and other interval layer IEDs, exchange information with IEC 61850 bus 3. Part of the secondary device that cooperates with the power equipment simulation module 11, such as a secondary device 5, and the secondary device that cooperates with the actual power equipment, such as another secondary device 6, will simulate the output information of the power equipment simulation module 11 or The analysis and processing results of the actual power equipment operation information are sent to the IEC 61850 bus 3. When the secondary device obtains the information transmitted by the IEC61850 bus 3, it parses and executes corresponding operations.

The power equipment simulation module 11 needs to build the corresponding simulation model of the power equipment associated with the secondary device for the performance test of the secondary device, such as when the secondary device is a power quality analyzer, a corresponding inverter harmonic simulation model can be established; When the device is a motor comprehensive protector, a corresponding motor simulation model can be established to form a programmable analog data source with complete operating characteristics of the power equipment associated with the secondary device. The power equipment simulation module 11 performs information interaction with the secondary device through the GOOSE subscription/publishing interface 9 and the SMV subscription/publishing interface 10 . The secondary device obtains the simulation output information of the power equipment simulation module 11 through the GOOSE subscription/publishing interface 9 and the SMV subscription/publishing interface 10, performs corresponding analysis and processing according to its own functions, and passes the analysis and processing results through the GOOSE subscription/publishing interface 9, The SMV subscription/publishing interface 10 feeds back to the power equipment simulation module 11 . Based on the above operations, the digital-analog hybrid simulation test can be realized, and then the performance test and evaluation of secondary devices with different functions and types can be completed.

The GOOSE subscription/publishing interface 9 and the SMV subscription/publishing interface 10 respectively establish the mapping relationship between the secondary device GOOSE, the SMV information point and each simulation model in the power equipment simulation module 11, and obtain the simulation output information of the power equipment simulation module 11 during operation, Analyze according to the mapping relationship and publish to the secondary device according to the IEC61850 GOOSE and SMV communication specifications; The mapping relationships are respectively fed back to the power equipment simulation module 11 .

Claims (7)

1. a kind of simulation test platform based on IEC 61850 bus, it is characterized in that: described simulation test platform comprises system simulation module (1), MMS client interface (2), IEC 61850 bus (3), IED simulator ( 4), multiple secondary devices, MMS server interface (8), GOOSE subscription/publishing interface (9), SMV subscription/publishing interface (10), power equipment simulation module (11), and multiple power equipment; The above-mentioned system simulation module (1) carries out information exchange with the IEC 61850 bus (3) through the MMS client interface (2); the described IED simulator (4) and the secondary device carry out information exchange with the IEC61850 bus (3); Described power equipment simulation module (11) carries out information interaction with IED simulator (4) through MMS server end interface (8); Described power equipment simulation module (11) subscribes/publishes interface (9) or SMV through GOOSE The subscription/publishing interface (10) performs information interaction with the secondary device. 2. the emulation test platform based on IEC 61850 bus according to claim 1, is characterized in that: described system emulation module (1) obtains the information that IEC 61850 bus (3) transmits by MMS client interface (2), According to the different test functions and objectives of the system, through intelligent optimization, complex decision-making or coordinated management, the corresponding management information of each part of the system is generated, and sent to the IEC 61850 bus (3) through the MMS client interface (2). 3. the simulation test platform based on IEC 61850 bus according to claim 1, is characterized in that: described IED simulator (4) obtains the simulation output of power equipment simulation module (11) by MMS server-side interface (8) information, and sent to the IEC 61850 bus (3); when the IED simulator (4) obtains the information transmitted by the IEC 61850 bus (3), it is fed back to the power equipment simulation module ( 11). 4. The simulation test platform based on IEC 61850 bus according to claim 1, characterized in that: said secondary device obtains power equipment simulation through GOOSE subscription/publishing interface (9) or SMV subscription/publishing interface (10) The simulation output information of the module (11) is analyzed and processed according to its own function, and the analysis and processing results are fed back to the power equipment simulation module (11) through the GOOSE subscription/publishing interface (9) or the SMV subscription/publishing interface (10) . 5. The simulation test platform based on the IEC 61850 bus according to claim 1, characterized in that: said secondary device will analyze the simulation output information of the power equipment simulation module (11) or the actual power equipment operation information The processing result is sent to the IEC 61850 bus (3); when the secondary device obtains the information transmitted by the IEC 61850 bus (3), it parses and executes corresponding operations. 6. the simulation test platform based on IEC 61850 bus according to claim 1, is characterized in that: described system simulation module (1) needs to build the corresponding simulation model of system according to the simulation test of different system objects; The equipment simulation module (11) builds corresponding simulation models of the power equipment according to the needs of the simulation test of different power equipment objects, and simulates the operating characteristics of multiple types of power equipment. 7. The simulation test platform based on the IEC 61850 bus according to claim 1, characterized in that: the simulation test platform can access multi-type power equipment, secondary devices and systems to carry out simulation tests, according to different simulation tests It is required to expand the corresponding simulation test module through the IEC 61850 bus (3).