Control method of intelligent relay protection testing device

Identity authentication and model verification of relay protection device are carried out through intelligent control methods to ensure that only authorized personnel operate and record operation details, solving the problems of manual operation errors and difficulty in tracing responsibility in the existing technology, and improving the relay protection test Security and management efficiency.

CN119107703APending Publication Date: 2024-12-10ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER
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Patent Information

Application Number
CN202411194007.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-08-28
Publication Date
2024-12-10

AI Technical Summary

Technical Problem

The existing relay protection testing devices rely on a large number of manual operations, and there are operational errors, incomplete records or misrecords, and cannot effectively trace the operational responsibilities, and cannot ensure that only authorized personnel can operate, which affects safety and management efficiency.

Method used

Identity authentication is performed using intelligent control methods, and through identity authentication, it ensures that only authorized personnel can operate, record each operation and bind to the specific operator, combine reading the model and verification code of the relay protection device to obtain the value items to be inspected, And inject current, voltage and switching values ​​to form an action message for accurate judgment to ensure operational safety and responsibility traceability.

Benefits of technology

Improve operational safety, prevent unauthorized use, ensure accurate operation records, facilitate responsibility traceability, improve management efficiency, and ensure the safety and trustworthy verification results of relay protection devices.

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Abstract

The invention relates to a control method of an intelligent relay protection testing device, which is characterized by comprising the following steps of: authenticating the identity of an operator of the relay protection testing device, comparing the identity information of the operator with preset identity information, unlocking the relay protection testing device if the comparison is correct, and if the comparison is not correct, unlocking the relay protection testing device. Meanwhile, information of operators to which the identity information belongs is recorded. The identity of an operator can be accurately recognized through identity authentication, and it is ensured that only authorized personnel can conduct operation. Therefore, not only is the security improved, but also unauthorized use can be prevented. And the record of each operation is bound with a specific operator, so that responsibility can be traced conveniently. And when problems occur, specific operators can be traced according to records, so that the management efficiency is improved.
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Description

Technical Field

[0001] The invention belongs to the technical field of relay protection device inspection, and in particular relates to a control method for an intelligent relay protection test device. Background Art

[0002] With the rapid development of new power systems, especially the massive access of new energy and power electronic equipment, relay protection is facing unprecedented challenges. The intermittent and volatile nature of new energy and the rapid response characteristics of power electronic equipment have significantly changed the fault characteristics of the power system. These changes not only affect the normal operation of traditional relay protection equipment, but also put forward new requirements for its accuracy and reliability. First, the access of new energy leads to increased fluctuations in grid current and voltage, which may cause traditional current protection and distance protection to malfunction or refuse to operate. Especially when the proportion of new energy generation is high, the short-circuit current level of the grid will change, which requires relay protection equipment to adapt to such changes and accurately determine the fault location. Secondly, the widespread application of power electronic equipment makes the dynamic behavior of the power system more complex. These devices have fast control response capabilities and may quickly change the operating state of the system when a fault occurs, thereby affecting the judgment of relay protection. In addition, power electronic equipment may also generate a large number of harmonics and interharmonics, which puts higher requirements on the signal processing and recognition capabilities of relay protection. Finally, the new power system also puts forward higher requirements on the speed of relay protection. Due to the influence of new energy and power electronic equipment, the development of power system faults may be more rapid and complex, which requires relay protection to accurately judge and eliminate faults in a very short time to prevent further expansion of faults.

[0003] During use, existing relay protection test devices mainly rely on a large amount of manual operation and record-keeping. This method has certain limitations and risks, and the confirmation of the operator's identity relies solely on manual records, which is prone to operational errors, incomplete records or erroneous records, and cannot effectively trace operational responsibilities. Summary of the invention

[0004] The object of the present invention is to provide a control method for an intelligent relay protection test device, which can:

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A control method for an intelligent relay protection test device comprises: authenticating the identity of an operator of the relay protection test device, comparing the identity information of the operator with preset identity information, unlocking the relay protection test device if the comparison is correct, and recording the operator information to which the identity information belongs.

[0007] Preferably, it also includes: the relay protection test device reads the model and verification code of the relay protection device from the relay protection device, and determines the corresponding fixed value item to be tested according to the model and verification code.

[0008] Preferably, it also includes: the relay protection test device obtains the inspection fixed value items from the relay protection verification management main station, and determines the corresponding inspection fixed value items according to the model and the verification code and verifies the inspection fixed value items obtained from the relay protection verification management main station.

[0009] Preferably, it also includes: injecting current, voltage and switch value into the relay protection device according to the inspection setting item, and recording the voltage, voltage, switch value and duration.

[0010] Preferably, the read relay protection device model, check code, and the current, voltage, switching value injected by the corresponding test set item and the record of the action time of the relay protection device are formed into an action message, and it is judged whether the action is accurate to form an information report containing the operator information.

[0011] The present invention can accurately identify the identity of the operator through identity authentication, ensuring that only authorized personnel can perform operations. This not only improves security, but also prevents unauthorized use. The record of each operation is bound to the specific operator, which facilitates the traceability of responsibility. When a problem occurs, it can be traced back to the specific operator based on the record, improving management efficiency.

[0012] The present invention reads the model and check code of the relay protection device from the relay protection device, and reads the corresponding fixed value items to be checked. The operator injects current, voltage and switch value values ​​into the relay protection device according to the check fixed value items, and records the voltage, voltage, switch value value and duration to ensure the device safety of the relay protection device.

[0013] The present invention determines the corresponding fixed value items to be inspected according to the model and the inspection code and obtains the inspection fixed value items from the relay protection inspection management main station for verification, thereby ensuring that the inspection result of the relay protection device is credible and comprehensive. DETAILED DESCRIPTION

[0014] The present invention is further described below in conjunction with specific embodiments.

[0015] The present invention provides a control method for an intelligent relay protection test device, comprising: authenticating an operator of the relay protection test device, wherein the identity authentication includes face recognition authentication, fingerprint recognition authentication or card swiping authentication, comparing the operator's identity information with preset identity information, wherein the preset identity information is the identity information of all operators who use the relay protection tester collected in advance, and if the comparison is correct, unlocking the relay protection test device, wherein after the relay protection test device is unlocked, starting a corresponding test module according to a selected test item, and after completing the test, the test module transmits the test data to a memory of the relay protection test device in real time, and records the operator information to which the identity information belongs.

[0016] Furthermore, the relay protection test device reads the model and check code of the relay protection device from the relay protection device, and determines the corresponding fixed value item to be tested according to the model and check code;

[0017] Among them, the relay protection test device can be configured with an Ethernet port or a serial communication port to connect to the communication interface of the relay protection device. The relay protection test device reads the model and verification code of the relay protection device from the relay protection device, and reads the corresponding fixed value items to be tested from the memory of the relay protection test device. The operator injects current, voltage and switch value into the relay protection device according to the test fixed value items, and records the voltage, voltage, switch value and duration to ensure the safety of the relay protection device.

[0018] Furthermore, the relay protection test device obtains inspection set items from the relay protection verification management main station, and determines the corresponding inspection set items according to the model and the verification code, and verifies the inspection set items obtained from the relay protection verification management main station, wherein the relay protection tester can be equipped with a wireless online connection port, and obtains the relay protection device verification scheme suitable for the local power grid from the relay protection verification management main station, that is, the inspection set items, and determines the corresponding inspection set items according to the model and the verification code, and verifies the inspection set items obtained from the relay protection verification management main station, so as to ensure that the verification results of the relay protection device are credible and comprehensive.

[0019] Furthermore, the read relay protection device model, check code, and the current, voltage, switching value injected by the corresponding test set item and the record of the action time of the relay protection device are formed into an action message, and it is judged whether the action is accurate to form an information report containing the operator information, which is convenient for subsequent responsibility tracing and management.

Claims

1. A control method for an intelligent relay protection test device, characterized in that: include: The operator of the relay protection test device is authenticated, and the operator's identity information is compared with the preset identity information. If the comparison is correct, the relay protection test device is unlocked and the operator information to which the identity information belongs is recorded.

2. The control method of the intelligent relay protection test device according to claim 1, characterized in that: Also includes: The relay protection test device reads the model and check code of the relay protection device from the relay protection device, and determines the corresponding fixed value item to be tested according to the model and the check code.

3. The control method of the intelligent relay protection test device according to claim 2, characterized in that: Also includes: The relay protection test device obtains the inspection set value items from the relay protection verification management main station, and determines the corresponding inspection set value items according to the model and the verification code and verifies the inspection set value items obtained from the relay protection verification management main station.

4. The control method of the intelligent relay protection test device according to claim 2 or 3, characterized in that: Also includes: Inject current, voltage and switch value into the relay protection device according to the test setting items, and record the voltage, voltage, switch value and duration.

5. The control method of the intelligent relay protection test device according to claim 4, characterized in that: The read relay protection device model, check code, and the current, voltage, switch quantity injected by the corresponding test set item and the record of the action time of the relay protection device are formed into an action message, and it is judged whether the action is accurate to form an information report containing the operator information.