Automatic test system and method of relay protection device based on dynamic port configuration

Abstract

The invention discloses an automatic test system and method for a relay protection device based on dynamic port configuration, the system comprises an input module, a simulation test module, a function interface module and a tester, the function interface module comprises a function interface management unit and a relay unit, and the simulation test module generates a test scheme according to test requirements; the tester outputs corresponding electrical test quantity according to parameters in the test scheme; the function interface management unit controls the relay unit to transmit simulation test quantity to the tested relay protection device according to the test scheme, wherein the simulation test quantity comprises alternating-current analog quantity and direct-current analog quantity; the function interface module receives output information of the tested device, generates a corresponding input message and feeds the input message back to the simulation test module. And the simulation test module generates a test report according to the fed-back input message and the test scheme. According to the invention, the number of input, output and analog output ports and the input and output functions can be dynamically configured, and the test requirements of different types of relay protection devices can be met.

Description

Technical Field

[0001] The invention relates to an automatic test system and method for a relay protection device based on dynamic port configuration, belonging to the technical field of relay protection device testing. Background Art

[0002] Relay protection devices are the first important line of defense for power grid security. With the continuous expansion and complexity of power systems, the functions of relay protection devices are becoming increasingly complex. From traditional single-function protection to comprehensive intelligent protection, the difficulty of testing and maintenance is also increasing. Traditional relay protection test methods mostly rely on manual operation, which is not only inefficient but also prone to errors. Especially when faced with a large number of protection devices and complex test items, the limitations of manual testing are more obvious. In view of the shortcomings of traditional test methods, the Haomai Star 6000D series relay protection tester, based on the IEC-61850 communication protocol, can "one-click" load test modules, import SCD model files, and execute test files; Beijing Bodian's digital-analog integrated tester is suitable for testing smart stations or digital equipment under the "new six unified" specifications. It can directly call the test modules of related functions through the protocol, and can generate corresponding test results when the test is completed. In the automatic test method provided by this type of manufacturer, there is only process layer data interaction between the tester and the equipment. The tester cannot perform station control layer operations on the equipment, such as setting value modification, and the executable test items in this test scheme are relatively fixed, mainly testing the protection function logic, completing the local test closed loop through time control or receiving the input node, and the multi-function test can only be simply combined through the functional unit module, and it is impossible to design a more complex test process according to the test requirements. The automatic test system that realizes two-way communication between the background, tester, and equipment, such as ABB's automatic test system, automates the test, evaluation, report generation and storage, and stores the test results in XML format. The advantages of this test system are obvious, the test process is standardized, and it meets international standards. However, there are problems including that the test system only supports omicron testers, the cost is high and the application scope is small, which limits the promotion and use of the test system. The above-mentioned automatic test methods all need to simulate process layer data based on the tester. Different types of relay protection devices have different numbers of inputs and outputs and the terminals used. However, the number of inputs and outputs of the tester is limited, and the tester cannot provide all input and output interfaces. This requires frequent replacement of test lines during the test, which reduces the efficiency of automatic testing. In response to the insufficient number of inputs and outputs. Chinese patent CN202310199169.3 discloses an IO expansion device and an automatic test system for relay protection devices. The proposed IO expansion device communicates with the automatic test system through a private protocol, which increases the difficulty of transplanting the test template and is not conducive to the upgrade and expansion of the automatic test system; in the test of relay protection devices that require multiple groups of voltages, such as the logic test of multi-station / multi-incoming line backup automatic switching devices, because the system only expands the number of inputs and outputs, it cannot meet the test requirements of multiple groups of voltage outputs. Summary of the invention

[0003] Purpose of the invention: In view of the shortcomings of the current automatic test system, the present invention proposes an automatic test system for relay protection devices based on dynamic port configuration.

[0004] Technical solution: To achieve the above purpose, the technical solution adopted by the present invention is:

[0005] An automatic test system for a relay protection device based on dynamic port configuration is used for testing the relay protection device under test, comprising an input module, a simulation test module, a functional interface module, and a tester, wherein:

[0006] The input module is used to input the test requirements of the relay protection device under test.

[0007] The simulation test module generates a test plan according to the test requirements. The simulation test module determines whether the test is qualified according to the feedback input message and the test plan, and generates a test report.

[0008] The tester is used to simulate the electrical test quantity in the power system to obtain the electrical simulation quantity, and the tester outputs the corresponding electrical simulation quantity according to the parameters in the test scheme generated by the simulation test module.

[0009] The functional interface module includes a functional interface management unit and a relay unit. The functional interface management unit receives the electrical analog quantity output by the tester and the test plan sent by the simulation test module; the functional interface management unit controls the relay unit according to the test plan to transmit the electrical analog quantity and the output test quantity to the relay protection device under test; the functional interface module receives the output information of the relay protection device under test when executing the test task, generates a corresponding input message, and feeds it back to the simulation test module.

[0010] Preferably: the tester is provided with P voltage analog output terminals, the functional interface module includes Q relay units, the qth relay unit includes Bq relays and Cq input terminals. The voltage analog output terminal of the ith tester is used to communicate with the kith relay of the ith relay unit. The open input terminal of the ith relay unit is connected to the kith relay The output terminal is used to connect to the kith input terminal of the ith relay protection device under test. Connect the lith input terminal of the ith relay unit Used to connect to the lith output terminal of the i-th relay protection device under test connection, i=1,2,3,…,n, n represents the number of relay protection devices under test, ki=1,2,3,…,Ki, li=1,2,3,…,Li, Ki≤Bi, Li≤Ci, n≤P≤Q, Ki represents the number of input terminals of the i-th relay protection device under test, Bi represents the number of relays in the i-th relay unit, Li represents the number of output terminals of the i-th relay protection device under test, and Ci represents the number of input terminals of the i-th relay unit.

[0011] Preferably: it also includes an ICD model module, and the ICD model module is used to define the information and method of interaction between the relay protection device under test, the functional interface module and the simulation test module.

[0012] Preferably: the simulation test module is provided with a test template, and the simulation test module generates a test plan according to the test template and the test requirements.

[0013] Preferably, the electrical test quantities include voltage, current and frequency.

[0014] Preferably, the simulation test module communicates with the functional interface module and the relay protection device under test through the MMS protocol.

[0015] An automatic testing method for a relay protection device based on dynamic port configuration, using the automatic testing system for a relay protection device based on dynamic port configuration, comprises the following steps:

[0016] Step 1: According to the IEC-61850 standard, an ICD model of the relay protection device under test and the functional interface module is constructed. The ICD model is imported into the relay protection device under test, the simulation test module and the functional interface module.

[0017] Step 2: Connect the voltage analog output terminal of the ith tester to the kith relay of the ith relay unit. The open input terminal of the ith relay unit is connected to the kith relay The output terminal of the i-th relay protection device under test is connected to the ki-th input terminal of the i-th relay protection device under test. Connect the lith input terminal of the ith relay unit With the lith output terminal of the ith relay protection device under test connect.

[0018] Step 3, according to the input and output functions of the relay protection device under test connected to the functional interface module, the input and output function definitions are completed on the simulation test module through the input module.

[0019] Step 4: input the test requirements of the relay protection device under test through the input module, and the simulation test module generates a test plan according to the test requirements of the relay protection device under test.

[0020] Step 5: The tester outputs the corresponding electrical test quantity according to the parameters in the test scheme generated by the simulation test module. The functional interface management unit controls the relay unit to transmit the electrical test quantity to the relay protection device under test according to the test scheme. The relay protection device under test performs the test task according to the test scheme and the received electrical test quantity.

[0021] Step 6: The simulation test module sends the test completion information to the tester and the functional interface module.

[0022] Step 7, the functional interface module receives the output information of the relay protection device under test during the execution of the test task, generates a corresponding input message, and feeds it back to the simulation test module. The simulation test module determines whether the test is qualified based on the feedback input message and the test plan, and generates a test report.

[0023] Preferably: in step 1, an ICD model is constructed according to the IEC-61850 standard, and the ICD model defines the information and method of interaction between the relay protection device under test, the functional interface module and the simulation test module.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention generates a test scheme according to the test requirements through the simulation test module, and the tester outputs the corresponding electrical test quantity according to the parameters in the test scheme generated by the simulation test module. The functional interface module includes a functional interface management unit and a relay unit, and the functional interface management unit controls the relay unit according to the test scheme to transmit the electrical test quantity to the relay protection device under test. The functional interface module receives the output information of the relay protection device under test in the execution of the test task, generates a corresponding input message, and feeds it back to the simulation test module. The simulation test module determines whether the test is qualified based on the feedback input message and the test scheme, and generates a test report. Therefore, the number of input, output, and analog output ports and the input and output functions can be dynamically configured to meet the test requirements of different types of relay protection devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a system block diagram of Example 1.

[0027] Figure 2 This is a schematic diagram of voltage analog wiring in Example 3.

[0028] Figure 3 This is a schematic diagram of the input and output wiring of Example 4. DETAILED DESCRIPTION

[0029] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0030] Example 1

[0031] Due to the limitations of the tester, the current automatic test system has the problem of insufficient input, output and analog ports, which requires frequent wiring changes during the test process, reducing the efficiency of automatic testing. In addition, the current automatic test system IO expansion module uses a private protocol to communicate with the automatic test device, which increases the difficulty of transplanting the test template, and is not conducive to the upgrade of the automatic test system and the further expansion of the IO number. The current automatic test system IO expansion module only expands the number of inputs and outputs, and cannot meet the testing requirements of multiple groups of voltages. In response to the above problems, the present embodiment provides an automatic test system for a relay protection device based on dynamic port configuration, which is used for testing the relay protection device under test, such as Figure 1 As shown, it includes an input module, a simulation test module, a functional interface module, and a tester, wherein:

[0032] The input module is used to input the test requirements of the relay protection device under test.

[0033] The simulation test module generates a test plan according to the test requirements. The simulation test module determines whether the test is qualified according to the feedback input message and the test plan, and generates a test report. In another embodiment, the simulation test module is provided with a test template, and the simulation test module generates a test plan according to the test template and the test requirements.

[0034] The tester is used to simulate the electrical test quantity in the power system to obtain the electrical analog quantity. In another embodiment, the electrical analog quantity (electrical test quantity) includes an AC analog quantity and a DC analog quantity. In another embodiment, the electrical test quantity includes voltage, current, and frequency. The tester outputs the corresponding electrical analog quantity (electrical test quantity) according to the parameters in the test scheme generated by the simulation test module.

[0035] The functional interface module includes a functional interface management unit and a relay unit. The functional interface management unit receives the electrical analog quantity output by the tester and the test plan sent by the simulation test module; the functional interface management unit controls the relay unit according to the test plan to transmit the electrical analog quantity and the output test quantity to the relay protection device under test; the functional interface module receives the output information of the relay protection device under test when executing the test task, generates a corresponding input message, and feeds it back to the simulation test module.

[0036] In another embodiment, the tester is provided with P voltage analog output terminals, the functional interface module includes Q relay units, the qth relay unit includes Bq relays and Cq input terminals. The voltage analog output terminal of the i-th tester is used to communicate with the ki-th relay of the i-th relay unit. The open input terminal of the ith relay unit is connected to the kith relay The output terminal is used to connect to the kith input terminal of the ith relay protection device under test. Connect the lith input terminal of the ith relay unit Used to connect to the lith output terminal of the i-th relay protection device under test connection, i=1,2,3,…,n, n represents the number of relay protection devices under test, ki=1,2,3,…,Ki, li=1,2,3,…,Li, Ki≤Bi, Li≤Ci, n≤P≤Q, Ki represents the number of input terminals of the i-th relay protection device under test, Bi represents the number of relays in the i-th relay unit, Li represents the number of output terminals of the i-th relay protection device under test, and Ci represents the number of input terminals of the i-th relay unit.

[0037] In another embodiment, an ICD model module is further included, and the ICD model module is used to define the information and method of interaction between the relay protection device under test, the functional interface module and the simulation test module.

[0038] In another embodiment, the simulation test module communicates with the functional interface module and the relay protection device under test through the MMS (Manufacture Message Specification) protocol.

[0039] The automatic test system consists of a simulation test module, a functional interface module, and a relay protection tester. The simulation test module can provide standardized test templates, and can complete remote modification of set values, remote soft pressure plate insertion and withdrawal, remote switching of set value areas, remote control, reading and parsing of messages, and finally complete automatic judgment of result information. The functional interface module consists of an output port, an input port, a functional interface management unit, and a communication management unit. It has the functions of remote signal collection and magnetic holding export. This module expands the input and output interfaces and voltage output ports of the tester, and can dynamically configure the test port according to different test scenario requirements. The tester consists of input, analog quantity, and communication management units, and can simulate various electrical quantities in the power system, such as voltage, current, frequency, etc., to verify the action characteristics and protection functions of the relay protection device. The simulation test module generates a test plan based on the test template filled in by the user; the tester outputs the corresponding test quantity according to the parameters in the test plan generated by the simulation test module; the functional interface module controls the test quantity added to the device under test according to the test plan, and can generate corresponding input messages according to the action of the device under test, and feedback to the simulation test module. The simulation test module automatically determines whether the test is qualified based on the feedback input message and the action message fed back by the device. The simulation test module communicates with the functional interface module and the device under test through the MMS protocol.

[0040] Example 2

[0041] An automatic testing method for a relay protection device based on dynamic port configuration, using the automatic testing system for a relay protection device based on dynamic port configuration, comprises the following steps:

[0042] Step 1, construct an ICD model of the relay protection device under test and the functional interface module according to the standard of IEC-61850. Import the ICD model into the relay protection device under test, the simulation test module and the functional interface module. In another embodiment, an ICD model is constructed according to the standard of IEC-61850, and the ICD model defines the information and method of interaction between the relay protection device under test, the functional interface module and the simulation test module.

[0043] Step 2: Connect the voltage analog output terminal of the ith tester to the kith relay of the ith relay unit. The open input terminal of the ith relay unit is connected to the kith relay The output terminal of the i-th relay protection device under test is connected to the ki-th input terminal of the i-th relay protection device under test. Connect the lith input terminal of the ith relay unit With the lith output terminal of the ith relay protection device under test connect.

[0044] Step 3, according to the input and output functions of the relay protection device under test connected to the functional interface module, the input and output function definitions are completed on the simulation test module through the input module.

[0045] Step 4: input the test requirements of the relay protection device under test through the input module, and the simulation test module generates a test plan according to the test requirements of the relay protection device under test.

[0046] Step 5: The tester outputs the corresponding electrical test quantity according to the parameters in the test scheme generated by the simulation test module. The functional interface management unit controls the relay unit to transmit the electrical test quantity to the relay protection device under test according to the test scheme. The relay protection device under test performs the test task according to the test scheme and the received electrical test quantity.

[0047] Step 6: The simulation test module sends the test completion information to the tester and the functional interface module.

[0048] Step 7, the functional interface module receives the output information of the relay protection device under test during the execution of the test task, generates a corresponding input message, and feeds it back to the simulation test module. The simulation test module determines whether the test is qualified based on the feedback input message and the test plan, and generates a test report.

[0049] Example 3

[0050] The connection method of the voltage analog quantity in this embodiment is as follows Figure 2As shown, there are two devices under test, the ua of the tester is connected to the magnetic latching outputs ua1 and ua2 of the functional interface module, the ub of the tester is connected to the magnetic latching outputs ub1 and ub2 of the functional interface module, the uc of the tester is connected to the magnetic latching outputs uc1 and uc2 of the functional interface module, and the un of the tester is connected to the magnetic latching outputs un1 and un2 of the functional interface module; then the magnetic latching outputs ua1, ub1, uc1, and un1 of the functional interface module are connected to ua1, ub1, uc1, and un1 of the device under test 1, and the magnetic latching outputs ua2, ub2, uc2, and un2 of the functional interface module are connected to ua2, ub2, uc2, and un2 of the device under test 2. By controlling the magnetic latching outputs of the functional interface module, a voltage analog quantity is provided for the device under test. If the tests of the two devices under test are to be consistent, the relevant voltage tests can be performed at the same time; if the two devices are to perform different types of tests, such as one of them needs to perform remote control operation to detect no voltage, and the other needs to simulate low-voltage load reduction action, the corresponding voltage analog quantity can be simulated for the two devices by controlling the corresponding magnetic holding relay. If the two devices need to be tested in coordination, such as the coordinated test of the action logic of the backup automatic transfer of multiple stations, multiple groups of voltage analog quantities can be provided for the backup automatic transfer device to simulate the bus voltage conditions of different stations. Through this connection method, voltage analog quantities can be provided for n devices under test, expanding the output port of the tester voltage, and through the magnetic holding output of the functional interface module, different analog quantity addition conditions can be flexibly simulated, thereby improving the efficiency of the test.

[0051] Example 4

[0052] The wiring of the input and output of this embodiment is as follows Figure 3 As shown, the magnetic latching output a1 and magnetic latching output an of the functional interface module are connected to the input 1 and input n of the device under test 1 respectively; the output 1 and output n of the device under test 1 are connected to the input a1 and input an of the functional interface module; the magnetic latching output b1 and magnetic latching output bn of the functional interface module are connected to the input 1 and input n of the device under test 2 respectively; the output 1 and output n of the device under test 2 are connected to the input b1 and input bn of the functional interface module; the simulation test module is connected to the device under test 1, the device under test 2 and the functional interface module through the network port. Through the expansion of the functional interface module, sufficient inputs and outputs can be provided for multiple relay protection devices.

[0053] According to the IEC-61850 standard, the ICD (IED Capability Description) model of the device under test and the functional interface module is constructed. The ICD model specifies the content and method of communication between the device under test, the functional interface module and the simulation test module. The model of the device under test and the functional interface module needs to be imported into the simulation test module. According to the actual wiring method, the meaning of the input and output of the functional interface module is defined on the simulation test module. For example, if the remote input of the device under test 1 is connected to the magnetic latching output b1 of the functional interface module, the description of the magnetic latching output b1 in the ICD model of the functional interface module is modified to the remote control of the device 1. The simulation test module sends the command of closing the magnetic latching output b1 to the functional interface module through MMS communication, so that the device under test 1 can be placed in a remote state. According to this method, all the input and output definitions of the functional interface module are completed, so as to realize the testing of all the inputs and outputs of the device under test and the background remote control operation. In the process of testing the protection function of the device, in addition to detecting whether the device is in action, it is also necessary to detect whether the device has an action outlet, and judge whether the time of its action is qualified according to this action outlet. The input of the function interface module is connected to the action output interface of the device under test. When the device under test performs protection action, the corresponding input of the function interface module is set to 1, and a SOE report is generated. The SOE report is transmitted to the simulation test module through MMS communication, and the action report of the device is also transmitted to the simulation test module through MMS communication. The simulation test module compares the standards of the test items according to the two reports, judges whether the protection action is qualified, and controls the tester to increase the amount according to the report results. Through the method proposed by the present invention, the same type of tests can be performed on multiple devices at the same time, different types of tests can be performed on multiple devices, and the compatibility test between multiple devices can be completed, which greatly improves the efficiency of automatic testing.

[0054] The system and method of the present invention can achieve the following effects:

[0055] 1) The voltage can be connected to multiple groups of hold outputs of the functional interface module, and then output to multiple groups of voltage inputs of the device under test to expand the voltage output of the tester to meet the needs of simultaneous testing of multiple devices.

[0056] 2) The various modules of the system communicate with each other through the MMS communication protocol, and all adopt a unified model based on the IEC-61850 standard, which can flexibly define the input and output, reduce the difficulty of transplanting the automatic test template, and the modular design improves the scalability and applicability of the system.

[0057] 3) The functional interface module provides magnetic holding output. Through the simulation test module, the output function of each functional interface module can be flexibly customized to provide the tested device with various input status quantities such as position signal and hard pressure plate signal, thus solving the problem of frequent line changes during the test process due to the output limitation of the relay protection tester.

[0058] 4) The functional interface module can collect various types of outputs of different types of devices under test, and generate corresponding SOE changes through the station control layer communication to the simulation test module. The simulation test module can determine the protection logic action time by receiving the corresponding telesignal change time. By defining the mapping of telesignal inputs through the simulation test module, it can adapt to the testing of multiple different types of devices under test.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An automatic test system for a relay protection device based on dynamic port configuration, used for testing a relay protection device under test, characterized in that: It includes input module, simulation test module, functional interface module and tester, among which: The input module is used to input the test requirements of the relay protection device under test; The simulation test module generates a test plan according to the test requirements; the simulation test module determines whether the test is qualified according to the feedback input message and the test plan, and generates a test report; The tester is used to simulate the electrical test quantity in the power system to obtain the electrical simulation quantity, and the tester outputs the corresponding electrical simulation quantity according to the parameters in the test scheme generated by the simulation test module; The functional interface module includes a functional interface management unit and a relay unit. The functional interface management unit receives the electrical analog quantity output by the tester and the test plan sent by the simulation test module; the functional interface management unit controls the relay unit according to the test plan to transmit the electrical analog quantity and the output test quantity to the relay protection device under test; the functional interface module receives the output information of the relay protection device under test when executing the test task, generates a corresponding input message, and feeds it back to the simulation test module.

2. The automatic test system for relay protection device based on dynamic port configuration according to claim 1, characterized in that: The tester is provided with P voltage analog output terminals, the functional interface module includes Q relay units, and the qth relay unit includes Bq relays and Cq input terminals; The voltage analog output terminal of the i-th tester is used to connect to the ki-th relay of the ki-th relay unit. The open input terminal of the ith relay unit is connected to the kith relay The output terminal is used to connect to the kith input terminal of the ith relay protection device under test. Connect the lith input terminal of the ith relay unit Used to connect to the lith output terminal of the i-th relay protection device under test connection, i=1,2,3,…,n, n represents the number of relay protection devices under test, ki=1,2,3,…,Ki, li=1,2,3,…,Li, Ki≤Bi, Li≤Ci, n≤P≤Q, Ki represents the number of input terminals of the i-th relay protection device under test, Bi represents the number of relays in the i-th relay unit, Li represents the number of output terminals of the i-th relay protection device under test, and Ci represents the number of input terminals of the i-th relay unit.

3. The automatic test system for relay protection device based on dynamic port configuration according to claim 2 is characterized in that: It also includes an ICD model module, which is used to define the information and method of interaction between the relay protection device under test, the functional interface module and the simulation test module.

4. The automatic test system for relay protection device based on dynamic port configuration according to claim 3 is characterized in that: The simulation test module is provided with a test template, and the simulation test module generates a test plan according to the test template and the test requirements.

5. The automatic test system for relay protection device based on dynamic port configuration according to claim 4 is characterized in that: The electrical test quantities include voltage, current, and frequency.

6. The automatic test system for relay protection device based on dynamic port configuration according to claim 5, characterized in that: The simulation test module communicates with the functional interface module and the relay protection device under test through the MMS protocol.

7. An automatic test method for a relay protection device based on dynamic port configuration, using the automatic test system for a relay protection device based on dynamic port configuration according to any one of claims 2 to 6, characterized in that: The following steps are involved: Step 1: According to the IEC-61850 standard, an ICD model of the relay protection device under test and the functional interface module is constructed; the ICD model is imported into the relay protection device under test, the simulation test module and the functional interface module; Step 2: Connect the voltage analog output terminal of the ith tester to the kith relay of the ith relay unit. The open input terminal of the ith relay unit is connected to the kith relay The output terminal of the i-th relay protection device under test is connected to the ki-th input terminal of the i-th relay protection device under test. Connect the lith input terminal of the ith relay unit With the lith output terminal of the ith relay protection device under test connect; Step 3, according to the input and output functions of the relay protection device under test connected to the functional interface module, the input and output function definitions are completed on the simulation test module through the input module; Step 4: input the test requirements of the relay protection device under test through the input module, and the simulation test module generates a test plan according to the test requirements of the relay protection device under test; Step 5, the tester outputs the corresponding electrical test quantity according to the parameters in the test scheme generated by the simulation test module; the functional interface management unit controls the relay unit to transmit the electrical test quantity to the relay protection device under test according to the test scheme; The relay protection device under test performs the test task according to the test plan and the received electrical test quantity; Step 6: The simulation test module sends the test end information to the tester and the functional interface module; Step 7, the functional interface module receives the output information of the relay protection device under test during the execution of the test task, generates a corresponding input message, and feeds it back to the simulation test module. The simulation test module determines whether the test is qualified based on the feedback input message and the test plan, and generates a test report.

8. The automatic testing method for relay protection device based on dynamic port configuration according to claim 7 is characterized in that: In step 1, an ICD model is constructed according to the IEC-61850 standard, and the ICD model defines the information and method of interaction between the relay protection device under test, the functional interface module and the simulation test module.

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