CN211785867U - Test platform of distribution automation system - Google Patents
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Abstract
The embodiment of the invention relates to a test platform of a power distribution automation system, which comprises a control unit, a test unit, a virtual terminal group, a bus and a tested master station system. The test platform of the distribution automation system is an integrated test platform for supporting tests such as a master station, tested terminals and protocol consistency, and is used for detecting the distribution automation system, so that the scale and automatic detection capability of relevant equipment and functions of a power distribution network can be improved, the detection efficiency is high, and the test platform can be configured according to the requirements of the tested terminals through the virtual terminal group, so that the practicability of the test platform is high; the technical problems that an existing distribution automation system detection platform is complex in testing process, low in testing efficiency, weak in universality and the like are solved.
Description
Technical Field
The invention relates to the technical field of power distribution automation systems, in particular to a test platform of a power distribution automation system.
Background
A Distribution Automation System (DAS) is an automated system that enables a distribution enterprise to monitor, coordinate, and operate distribution equipment remotely in real time; the system comprises a power distribution network data acquisition and monitoring (SCADA system), a power distribution Geographic Information System (GIS) and a Demand Side Management (DSM).
At present, scientific research institutions and equipment manufacturers have experimental detection platforms for power distribution automation systems, and the experimental detection platforms mainly form related test methods and tools for testing requirements of power distribution automation communication protocol tests, power distribution terminal electromagnetic compatibility tests, distribution network terminal basic function tests, main station function tests, FA tests and the like. However, the existing experiment detection platform has the defects of complicated test flow, low test efficiency, weak universality and the like due to the fact that a certain type of distribution automation system is detected, so that repeated construction of test equipment of the distribution automation system can be caused, and the workload is large.
Disclosure of Invention
The embodiment of the invention provides a test platform of a power distribution automation system, which is used for solving the technical problems of complicated test flow, low test efficiency, weak universality and the like of the conventional test platform of the power distribution automation system.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
a test platform of a power distribution automation system comprises a control unit, a test unit, a virtual terminal group, a bus and a tested master station system, wherein the control unit is respectively connected with the test unit and the virtual terminal group through the bus, and the test unit is respectively connected with the tested master station system and a tested terminal through cables;
the control unit and the test unit form an HIL rack;
the testing system comprises a control unit, a bus, a tested master station system and a tested master station system, wherein a testing screen is connected between the control unit and the tested master station system, one end of the testing screen is connected with the bus, and the other end of the testing screen is connected with the tested master station system through a terminal row wiring.
Preferably, the control unit is provided with a test control system, and the test control system is used for carrying out power distribution network operation simulation environment test on the tested terminal according to a power distribution network typical operation mode.
Preferably, the test unit comprises a programmable power source and a network communication module;
the program-controlled power source is used for outputting corresponding electrical signals according to the state sequence and the fault waveform sent by the control unit and transmitting the electrical signals to the tested terminal;
the network communication module is used for communication connection and comprises a switch and a serial server.
Preferably, the control unit is further connected with the test screen through the bus, and the control unit comprises a running environment simulation module, an interactive configuration module, an output module and an input module;
the operation environment simulation module is used for forming a typical section sequence simulation environment for the operation of the power distribution network according to a typical operation mode of the power distribution network;
the interactive configuration module is used for simulating a power distribution operation environment according to the section sequence simulation environment;
the output module is used for controlling and/or outputting a test instruction;
and the opening module is used for acquiring, analyzing and evaluating the information of the tested terminal according to the instruction output by the opening module to obtain a test report.
Preferably, the operating environment simulation module comprises a network topology analysis submodule, a power flow analysis submodule and a fault characteristic analysis submodule;
the network topology analysis submodule is used for forming a power distribution network operation topology according to switches and connection relations thereof in a typical power distribution network operation mode;
the load flow analysis submodule is used for calculating the current, voltage and power data of each node in the power distribution network operation topology of the tested terminal in the normal operation state by adopting load flow calculation;
and the fault characteristic analysis submodule is used for calculating the section data of each monitoring point obtained by calculating the distribution network operation topology of the tested terminal in the fault state by adopting load flow calculation.
Preferably, the output module comprises a test screen control submodule, a virtual terminal group system control submodule, a four-remote signal extraction submodule and a terminal row wiring error prevention submodule;
the test screen control submodule is used for carrying out serialized test management according to the test instruction output from the test screen and the display test item and result;
the virtual terminal group system control submodule is used for realizing the issuing of a test instruction of the virtual terminal group;
the four-remote signal extraction sub-module is used for extracting four-remote signals needing to be output from the operation environment simulation module according to a test object;
and the terminal row wiring anti-misoperation submodule is used for realizing the anti-misoperation and the error elimination of the terminal row wiring of the test platform of the power distribution automation system.
Preferably, the opening module comprises an opening information analysis storage submodule, a test case library analysis submodule, a test result intelligent analysis submodule and a test report intelligent compiling submodule;
the opening information analysis and storage submodule is used for acquiring the information of the tested terminal and the reference information to obtain acquired information data;
the test case library analysis submodule is used for analyzing the collected information data to obtain evaluation information;
the test result intelligent analysis submodule is used for analyzing the acquired information data to obtain defect data generated by testing and analyzing the defect data to obtain defect reasons and obtain defect information;
and the test report intelligent compiling submodule is used for compiling the evaluation information and the defect information and outputting a test report.
Preferably, the virtual terminal group comprises an HIL rack communication module, a virtual terminal group module, a virtual switching module and a log management module; the virtual terminal group module is connected with the log management module, the tested master station system is connected with the virtual terminal group module through the virtual switching module, and the virtual terminal group module is connected with the control unit through the HIL rack communication module.
Preferably, the virtual terminal group further includes a system configuration module, and the system configuration module is configured to select a power distribution system of a corresponding virtual terminal in the virtual terminal group module according to the configuration of the terminal to be tested.
Preferably, the system configuration module includes a forwarding configuration, a communication configuration, and a data format configuration.
According to the technical scheme, the embodiment of the invention has the advantages that: the test platform of the distribution automation system is an integrated test platform for supporting tests such as a master station, tested terminals and protocol consistency, and is used for detecting the distribution automation system, so that the scale and automatic detection capability of relevant equipment and functions of a power distribution network can be improved, the detection efficiency is high, and the test platform can be configured according to the requirements of the tested terminals through the virtual terminal group, so that the practicability of the test platform is high; the technical problems of complicated testing process, low testing efficiency, weak universality and the like of the existing detection platform of the distribution automation system are solved;
drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a block diagram of a test platform of a distribution automation system according to an embodiment of the present invention.
Fig. 2 is a frame diagram of a test platform HIL rack of the distribution automation system according to an embodiment of the present invention.
Fig. 3 is a circuit diagram of a first typical operation mode of a conventional power distribution network.
Fig. 4 is a circuit diagram of a typical operation mode two of the conventional power distribution network.
Fig. 5 is a circuit diagram of a third typical operation mode of a conventional power distribution network.
Fig. 6 is a block diagram of a test platform virtual terminal group of the distribution automation system according to an embodiment of the present invention.
Fig. 7 is a block diagram of a testing platform virtual terminal group information exchange of the distribution automation system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the application provides a test platform of a power distribution automation system, which is used for solving the technical problems of complex test flow, low test efficiency, weak universality and the like of the existing test platform of the power distribution automation system.
The first embodiment is as follows:
fig. 1 is a frame diagram of a test platform of a distribution automation system according to an embodiment of the present invention, and fig. 2 is a frame diagram of a test platform HIL rack of a distribution automation system according to an embodiment of the present invention.
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a test platform of a power distribution automation system, including a control unit 100, a test unit 200, a virtual terminal group 300, a bus 400, and a tested master station system 500, where the control unit 100 is connected to the test unit 200 and the virtual terminal group 300 through the bus 400, and the test unit 200 is connected to the tested master station system 500 and the tested terminal through cables;
the control unit 100 and the test unit 200 constitute an HIL bench.
It should be noted that the HIL rack is mainly used for realizing a power distribution network operation simulation environment for a terminal to be tested. The power distribution network operation simulation environment is mainly formed by simulating different power distribution networks, virtual terminals and tested terminals according to needs, and can also be formed by mixing different power distribution networks, virtual terminals and tested terminals to realize sufficiently large power distribution network operation simulation. Wherein the number of virtual terminals is not limited.
In the embodiment of the present invention, the control unit 100 is a management core of a test platform of the power distribution automation system, and has functions of environmental simulation, test configuration, and the like.
In the embodiment of the present invention, the test unit 200 is provided with a connection interface, and the terminal to be tested is connected to the connection interface through a connection line, so as to connect the test unit 200 and the terminal to be tested.
It should be noted that the connection interface may be a standardized interface, and the corresponding connection line is also a standardized connection line. In this embodiment, the test unit 200 is connected to at least one terminal under test.
In the embodiment of the present invention, a virtual terminal group 300 is provided with a virtual terminal system to be tested, the virtual terminal group 300 is mainly connected to an exchange by using an ethernet, and the transmission of switch operation information and control signals between the virtual terminal group 300 and the exchange is realized by using a 104 protocol, the virtual terminal group 300, a real terminal to be tested, and a master station communicate with each other through the ethernet and an optical fiber concentrator, and the standard 104 protocol is also adopted to transmit information between the virtual terminal group 300 and the master station, and the virtual terminal group 300 is an important component of a test platform for realizing a distribution automation system.
It should be noted that the hardware part of the virtual terminal system under test is mainly composed of a computer.
In embodiments of the present invention, bus 400 includes Ethernet, serial, and wireless.
It should be noted that ethernet is a computer local area network technology, and the ethernet mainly includes the connection of the physical layer, the electronic signal, and the content of the medium access layer protocol. The serial port is also a serial interface, also called serial communication interface or serial communication interface (usually referred to as COM interface), and the serial port is an extended interface adopting a serial communication mode. Wireless refers to radio or airwaves.
In the embodiment of the present invention, a test screen is further connected between the control unit 100 and the master station system 500 under test, one end of the test screen is connected to the bus 400, and the other end of the test screen is connected to the master station system 500 under test through a terminal row wiring. The tested master station system 500 mainly provides the same or similar functions of the master station for the test platform of the power distribution automation system.
The test platform of the distribution automation system is an integrated test platform for supporting tests such as a master station, tested terminals and protocol consistency, and is used for detecting the distribution automation system, so that the scale and automatic detection capability of relevant equipment and functions of a power distribution network can be improved, the detection efficiency is high, and the test platform can be configured according to the requirements of the tested terminals through the virtual terminal group, so that the practicability of the test platform is high; the technical problems that an existing distribution automation system detection platform is complex in testing process, low in testing efficiency, weak in universality and the like are solved.
In an embodiment of the present invention, the control unit 100 is provided with a test control system, and the test control system is configured to perform a power distribution network operation simulation environment test on the terminal to be tested according to a power distribution network typical operation mode.
It should be noted that the test control system is mainly a system in which the control unit 100 performs operations.
In one embodiment of the present invention, the control unit 100 includes a runtime environment simulation module 101, an interaction configuration module 102, an exit module 103, and an entry module 104. The operation environment simulation module 101 is mainly used for forming a typical section sequence simulation environment for the operation of the power distribution network according to a typical operation mode of the power distribution network; the interactive configuration module 102 is mainly used for simulating a power distribution operation environment according to a section sequence simulation environment; the output module 103 is mainly used for controlling and/or outputting a test instruction; the opening module 104 is mainly used for acquiring, analyzing and evaluating the information of the terminal to be tested according to the instruction output by the opening module 103 to obtain a test report.
In an embodiment of the present invention, the line environment simulation module 101 includes a network topology analysis submodule 101a, a power flow analysis submodule 101b, and a fault characteristic analysis submodule 101 c. The network topology analysis submodule 101a is mainly used for forming a power distribution network operation topology according to switches and connection relations thereof in a typical power distribution network operation mode; the power flow analysis submodule 101b is mainly used for calculating current, voltage and power data of each node in the power distribution network operation topology of the terminal to be measured in a normal operation state by adopting power flow calculation; the fault characteristic analysis submodule 101c is mainly used for calculating section data of each monitoring point in the power distribution network operation topology of the measured terminal in the fault state by adopting tidal current calculation.
It should be noted that, the network topology analysis sub-module 101a forms an operation topology of the power distribution network according to the switches and their connection relationships in the typical operation mode of the power distribution network. The load flow analysis submodule 101b is used for load flow calculation in a normal operation state, and can form current, voltage and power data of each node by combining with an operation topology of a power distribution network according to a currently input switch state and load data of a typical point. The fault characteristic analysis submodule 101c is configured to calculate section data of each monitoring point of the distribution network automation system in a fault state, and according to the position and the property of the fault point, and the constant value data of the system configuration and the current distribution network operation topology, current of each monitoring point upstream of the fault point is used as fault current, and current of each monitoring point downstream is unchanged. And forming a typical section sequence (such as a normal operation section before the fault, an operation section during the fault, an operation section after the protection trip, an operation section after the reclosing and the like) of the operation of the power distribution network through continuous power flow calculation and fault characteristic analysis.
In the embodiment of the present invention, the export module 103 includes a test screen control sub-module, a virtual terminal group system control sub-module, a four-remote signal extraction sub-module, and a terminal strip wiring error prevention sub-module; the test screen control submodule is used for carrying out serialized test management according to the test instruction output from the test screen and the display test item and result; the virtual terminal group system control submodule is used for issuing a test instruction of the virtual terminal group; the four-remote signal extraction sub-module is used for extracting four-remote signals needing to be output from the operation environment simulation module according to the test object; the terminal row wiring anti-misoperation submodule is used for realizing the anti-misoperation and the error elimination of the terminal row wiring of the test platform of the distribution automation system.
It should be noted that the test screen control submodule implements the output of the test instruction of the test screen and the management of the serialization test; the virtual terminal group system control submodule realizes the issuing of a virtual terminal test instruction; the four-remote signal extraction sub-module is used for extracting four-remote signals to be output from the power distribution network operation simulation environment according to a test object when a terminal or a master station is tested; the terminal row wiring anti-misoperation submodule realizes the anti-misoperation and the error elimination of the terminal row wiring.
In the embodiment of the present invention, the open module 104 includes an open information analysis storage sub-module 104a, a test case library analysis sub-module 104b, a test result intelligent analysis sub-module 104c, and a test report intelligent compiling sub-module 104 d; the input information analysis storage submodule 104a is used for acquiring the information of the tested terminal and the reference information to obtain the acquired information data; the test case library analysis submodule 104b is used for analyzing the collected information data to obtain evaluation information; the test result intelligent analysis submodule 104c is used for analyzing the acquired information data to obtain defect data generated by testing and analyzing the defect data to obtain defect information; and the test report intelligent compiling sub-module 104d is used for compiling the evaluation information and the defect information and outputting a test report.
It should be noted that, the import information analysis storage sub-module 104a realizes the collection of the terminal information to be tested and the reference information (for example, the reference information of a high-precision test meter and a wave recorder); the test case library analysis submodule 104b realizes the analysis of the test data of the tested terminal and gives an evaluation; the test result intelligent analysis submodule 104c realizes intelligent analysis of reasons according to the defects generated in the test; the test report intelligent compiling sub-module 104d realizes intelligent compiling and outputting of test reports.
In an embodiment of the present invention, the test unit 200 is configured to receive a test command issued by the control unit 100, output a test environment, and simultaneously collect a test result, where the test unit 200 includes a programmable power source 201 and a network communication module 202;
the program-controlled power source 201 is mainly used for outputting corresponding electrical signals according to a state sequence and a fault waveform sent by the control unit 100 and transmitting the electrical signals to a tested terminal;
the network communication module 202 is mainly used for communication connection, and the network communication module 202 includes a switch 202a and a serial server 202 b. The test unit 200 further includes a high-precision measuring meter 203, a voltage-current switching device 204, and a wave recorder 205.
It should be noted that, the test control system simulates a typical operation mode of the power distribution network, sets an operation state section according to test contents, obtains a power flow of each switching node in the typical operation mode of the power distribution network through power flow calculation, and issues an electrical state value of a corresponding node to the program-controlled power source 201 through a network instruction mode according to different test purposes, and the program-controlled power source 201 outputs actual electrical quantity through a connection interface (standardized interface) to be injected into a tested terminal, thereby realizing a power distribution network operation simulation environment tested by the tested terminal. The high-precision measuring meter 203 (high-precision three-phase meter) mainly provides a high-accuracy test result for the test in the test unit 200. The voltage-to-current switching device 204 provides conversion of signals in the test unit 200. The recorder 205 is an important instrument that mainly records transient and steady analog quantity and event quantity information of a generator, a transformer, a power transmission line, a power station and a power plant of the distribution automation system of the test unit 200 during a test process, monitors the operation of the power system, stores test data, records and captures fault information, and provides a basis for testing the performance of the distribution automation system, and the recorder 205 is simply used for providing test information for the test unit 200.
Fig. 3 is a circuit diagram of a first typical operation mode of a conventional power distribution network, fig. 4 is a circuit diagram of a second typical operation mode of the conventional power distribution network, and fig. 5 is a circuit diagram of a third typical operation mode of the conventional power distribution network.
In the embodiment of the invention, the power distribution network operation simulation environment mainly comprises operation environment simulation during testing of a single tested terminal, operation environment simulation during FA testing and operation environment simulation during testing of the main station.
It should be noted that when the tested terminal operates in the field, the instrument transformer is used for collecting data such as current and voltage when the power distribution network operates, the tested terminal is used for collecting data of a certain switching node, and the simulated operation environment of the tested terminal is only used for simulating electrical data (including data during steady-state operation and fault operation) of the certain switching node.
In this embodiment, when the operating environment of a single terminal under test is simulated, as shown in fig. 3, a switch K3 is used as an access point of the terminal under test, and the operating state of the switch is embodied as a state sequence and a fault waveform; during testing, a tested terminal is connected into a testing screen through a standardized wiring, a testing control system issues a state sequence and a fault waveform to the program-controlled power source 201 in sequence according to a testing case, the program-controlled power source 201 continuously outputs a corresponding electrical signal, the electrical signal is injected into the tested terminal, the simulation of the operating environment of the terminal is completed, and different terminal operating environments can be flexibly and conveniently simulated by replacing different state sequences and fault waveforms.
In this embodiment, when the terminal under test is under the operation environment simulation during the FA test, as shown in fig. 4, the terminal under test respectively uses the switches K1, K2, K3, and K4 as access points; during testing, the test control system selects an FA test case library, calculates the states of the switches K1, K2, K3 and K4 according to the set running section and the result of load flow calculation, takes the state data as instructions and sends the instructions to the programmable power supplies corresponding to K1, K2, K3 and K4 in a network mode, and the programmable power supplies 201 synchronously output corresponding electric quantities to be injected into a tested terminal to finish running environment simulation during FA testing; different operation environment simulation during FA test can be realized by adopting different test cases and operation sections.
In this embodiment, when the tested terminal is in the operation environment simulation of the master station during testing, the master station of the power distribution automation system collects the operation data of the regional distribution network, so that the operation environment simulation of the master station is different from the operation environment simulation of the tested terminal in two points, one is that the master station operation environment is a regional power distribution network, the other is that the number of the switch nodes is very large, in order to solve the problem of large number of the switch nodes, the HIL rack adopts a semi-physical semi-simulation technology, as shown in fig. 5, a part of the real tested terminal is accessed to the power distribution master station to be tested, and a part of the real terminal is accessed to the virtual terminal group 300, and the virtual terminal group 300 is accessed to the master station through a network mode and can send. When the test platform of the distribution automation system is used for testing, the test control system simulates a typical distribution network of a distribution network, and according to a load flow calculation result, the operation simulation data is injected into a tested terminal through the program control power source 201 by the opening module 103 of the control unit 100, or is injected into the virtual terminal group 300 by the virtual terminal group system control submodule of the opening module 103, and all the data form the simulation of the operation environment of the distribution main station, so that the test of the distribution main station can be carried out.
Fig. 6 is a block diagram of a test platform virtual terminal group of the distribution automation system according to an embodiment of the present invention.
As shown in fig. 6, in one embodiment of the present application, the virtual terminal group 300 includes an HIL rack communication module 302, a virtual switching module 303, a log management module 304, and a virtual terminal group module 305. The virtual terminal group module 305 is connected to the log management module 304, the master station system under test 500 is connected to the virtual terminal group module 305 through the virtual switch module 303, and the virtual terminal group module 305 is connected to the control unit 100 through the HIL rack communication module 302.
It should be noted that the virtual terminal group 300 further includes a system configuration module 301 configured to configure the HIL rack communication module 302, the virtual terminal group module 305, the virtual switch module 303, and the log management module 304; the virtual terminal group module 305 is connected with the log management module 304; the tested master station system 500 establishes contact with the virtual terminal group module 305 through the virtual switching module 303; the virtual terminal group module 305 establishes contact with the control unit 100 of the HIL cradle through the HIL cradle communication module 302. The virtual terminal group module 305 includes a plurality of virtual terminals. The system configuration module 301 is configured to select a power distribution system of a corresponding middle virtual terminal in the virtual terminal group module 05 according to the configuration of the terminal under test.
In this embodiment, the system configuration module 301 implements analysis of the topology of the power distribution network and various configurations of the virtual terminal system under test, including forwarding configuration, communication configuration, and data format configuration. Analyzing the topological structure of the power distribution network by the virtual tested terminal system based on the CIM data of the power distribution network of the master station; after reading the CIM/XML file of the master station, the virtual tested terminal system automatically analyzes the file, identifies and judges the relations among the tested terminals, between the tested terminals and the monitoring switches, between the monitoring switches and the auxiliary devices thereof, and converts the relations among the tested terminals, the tested terminals and the monitoring switches into the link relations among the data tables in the system database.
It should be noted that the forwarding configuration mainly configures the forwarding functions of the HIL rack communication module 302 and the virtual terminal group module 305 according to the result of the topology analysis; the communication configuration is used for configuring information such as channels, paths, data groups, measuring points and the like of the virtual tested terminal system; the data format configuration is used for setting the format of data presented in the interface.
Fig. 7 is a block diagram of a testing platform virtual terminal group information exchange of the distribution automation system according to an embodiment of the present invention.
In the embodiment of the present invention, the HIL bench communication module 302 is configured to implement data exchange between the virtual terminal system under test and the HIL bench, where the data exchange has data streams in two directions, where the data streams include a system status data stream and a control signal data stream.
It should be noted that, the system status data stream is to distribute centrally received HIL bench test point data to corresponding virtual terminals, the control signal data stream is to receive control information from each virtual terminal and forward the control information to the HIL bench, firstly, a link is established with the HIL bench according to a channel link mode protocol in the system configuration module 301, and a monitoring port is used to monitor whether the connection with a channel between the HIL bench is successful; after the channel connection is successful, a path is established by using a Socket linked list, and when the path is overtime when the path is in a stop state for a long time, the processing unit can carry out reconnection operation according to the overtime. When the path is in an idle state, the data receiving and transmitting unit sends commands of activating, calling data, timing and the like to the HIL rack and a data message command returned by the HIL rack through the path established by the Socket linked list, the commands are stored in a command information list, the data processing unit analyzes and identifies the measuring point data of the message, and then the data are respectively forwarded to the corresponding virtual terminals through forwarding interfaces according to the data sequence regulation in the system configuration module 301 and the link relation established according to the CIM model; the implementation principle of the control signal data flow is similar to that described above, and the control signal from the virtual terminal is received through the forwarding interface, and the received signal is subjected to packet encapsulation within a certain time interval and then sent to the HIL rack through the data receiving and sending unit.
In the embodiment of the present invention, the virtual switch module 303 is mainly used for simulating the communication between a plurality of terminals to be tested and the master station or the real terminals to be tested at the same time. The hardware device where the virtual switch module 303 is located may allocate a network port to each virtual terminal, and the virtual terminal may communicate with the master station or the real terminal to be tested through the switch, but if the hardware device does not have a sufficient number of network ports, a plurality of virtual terminals need to share one network port for communication. In order to enable each virtual terminal to communicate independently, a virtual switch module 303 is added in the virtual tested terminal system, and the virtual switch module 303 is mainly used for realizing the function of a virtual switch, so that information interaction among the virtual terminals, between the virtual terminals and a master station, and between the virtual terminals and real tested terminals is performed.
It should be noted that, the virtual switching module 303 adopts a multi-channel communication technology, so that each of the virtual terminal group and each of the other devices has one or more independent channels, and the IP addresses and port numbers of the devices may be different; in the virtual switching module 303, a bidirectional processing technology is adopted for the same channel, and the virtual terminal system to be tested can send information to the equipment or receive the information; the virtual switching module 303 adopts a time sequence control technology to realize real-time synchronization of data, a process is established for each channel, different channels can receive and transmit data information in parallel, and meanwhile, the receiving and transmitting time sequences in the same channel are processed, so that efficient and orderly operation of communication is guaranteed; in the virtual switching module 303, a feature processing technology is used to configure the protocols used by the channels according to the inconsistency of the connection modes of data transmission of different devices and the protocol compliance specifications (each channel can load dynamic library files developed according to the protocols according to the configuration), and the configuration can be used for solving the problems of different characteristics of the same protocol, such as the initial address, the acquisition quantity and the like.
In the embodiment of the present invention, the log management module 304 includes log processing and log storage, and is configured to process and analyze relevant logs generated by the modules in the function implementation process, and store the items generated after processing.
In the embodiment of the present invention, the virtual terminal group module 305 is configured to construct a plurality of virtual terminals simultaneously, and first determine the number of virtual terminals required according to the configuration information of the system configuration module 301, construct a corresponding number of virtual terminals, and set a dedicated address for each virtual terminal; then, the multithreading technology is used for realizing the parallel operation among all the virtual terminals, and the multichannel technology is used for realizing the independent communication between each virtual terminal and the virtual switching module 303.
It should be noted that the implementation principle of each virtual terminal is the same, and the data is transmitted through the forwarding interface and the test bench communication module 302, and data interaction is performed between the data receiving and transmitting unit and the virtual switching module 303; the data processing unit encapsulates or analyzes the data communicated with the virtual switching module 303; the virtual terminal performs logic judgment on the received HIL bench test point data and the switch information of other terminals to be tested according to the control strategy in the system configuration module 301 to realize fault location, and then generates a control instruction to be forwarded to the test bench communication module 302.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A test platform of a power distribution automation system is characterized by comprising a control unit, a test unit, a virtual terminal group, a bus and a tested master station system, wherein the control unit is respectively connected with the test unit and the virtual terminal group through the bus, and the test unit is respectively connected with the tested master station system and a tested terminal through cables;
the control unit and the test unit form an HIL rack;
the testing system comprises a control unit, a bus, a tested master station system and a tested master station system, wherein a testing screen is connected between the control unit and the tested master station system, one end of the testing screen is connected with the bus, and the other end of the testing screen is connected with the tested master station system through a terminal row wiring.
2. The test platform of the power distribution automation system as claimed in claim 1, wherein a test control system is provided on the control unit, and the test control system is configured to perform a power distribution network operation simulation environment test on the terminal under test according to a power distribution network typical operation mode.
3. The test platform of the power distribution automation system of claim 1, the test unit further comprising a programmed power source and a network communication module;
the program-controlled power source is used for outputting corresponding electrical signals according to the state sequence and the fault waveform sent by the control unit and transmitting the electrical signals to the tested terminal;
the network communication module is used for communication connection and comprises a switch and a serial server.
4. The test platform of the power distribution automation system of claim 1, wherein the control unit is further connected to the test screen via the bus, the control unit including an operating environment simulation module, an interactive configuration module, an egress module, and an ingress module;
the operation environment simulation module is used for forming a typical section sequence simulation environment for the operation of the power distribution network according to a typical operation mode of the power distribution network;
the interactive configuration module is used for simulating a power distribution operation environment according to the section sequence simulation environment;
the output module is used for controlling and/or outputting a test instruction;
and the opening module is used for acquiring, analyzing and evaluating the information of the tested terminal according to the instruction output by the opening module to obtain a test report.
5. The test platform of the distribution automation system of claim 4, wherein the operating environment simulation module comprises a network topology analysis sub-module, a power flow analysis sub-module, and a fault characteristic analysis sub-module;
the network topology analysis submodule is used for forming a power distribution network operation topology according to switches and connection relations thereof in a typical power distribution network operation mode;
the load flow analysis submodule is used for calculating the current, voltage and power data of each node in the power distribution network operation topology of the tested terminal in the normal operation state by adopting load flow calculation;
and the fault characteristic analysis submodule is used for calculating the section data of each monitoring point obtained by calculating the distribution network operation topology of the tested terminal in the fault state by adopting load flow calculation.
6. The test platform of the distribution automation system of claim 4, wherein the opening module comprises a test screen control sub-module, a virtual terminal group system control sub-module, a four-remote signal extraction sub-module and a terminal row wiring sub-module;
the test screen control submodule is used for carrying out serialized test management according to the test instruction output from the test screen and the display test item and result;
the virtual terminal group system control submodule is used for realizing the issuing of a test instruction of the virtual terminal group;
the four-remote signal extraction sub-module is used for extracting four-remote signals needing to be output from the operation environment simulation module according to a test object;
and the terminal row wiring anti-misoperation submodule is used for realizing the anti-misoperation and the error elimination of the terminal row wiring of the test platform of the power distribution automation system.
7. The test platform of the distribution automation system of claim 4, wherein the open module comprises an open information analysis storage sub-module, a test case library analysis sub-module, a test result intelligent analysis sub-module and a test report intelligent compilation sub-module;
the opening information analysis and storage submodule is used for acquiring the information of the tested terminal and the reference information to obtain acquired information data;
the test case library analysis submodule is used for analyzing the collected information data to obtain evaluation information;
the test result intelligent analysis submodule is used for analyzing the acquired information data to obtain defect data generated by testing and analyzing the defect data to obtain defect reasons and obtain defect information;
and the test report intelligent compiling submodule is used for compiling the evaluation information and the defect information and outputting a test report.
8. The test platform of the power distribution automation system of claim 1, wherein the virtual terminal group comprises a HIL rack communication module, a virtual terminal group module, a virtual switching module, and a log management module; the virtual terminal group module is connected with the log management module, the tested master station system is connected with the virtual terminal group module through the virtual switching module, and the virtual terminal group module is connected with the control unit through the HIL rack communication module.
9. The test platform of the distribution automation system of claim 8, wherein the virtual terminal group further comprises a system configuration module, and the system configuration module is configured to select the distribution system of the corresponding virtual terminal in the virtual terminal group module according to the configuration of the terminal under test.
10. The test platform of the power distribution automation system of claim 9, the system configuration module comprising a forwarding configuration, a communication configuration, and a data format configuration.
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