CN119916084A - An intelligent line shaking insulation core phase test system and test method thereof - Google Patents
An intelligent line shaking insulation core phase test system and test method thereof Download PDFInfo
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- CN119916084A CN119916084A CN202510227669.2A CN202510227669A CN119916084A CN 119916084 A CN119916084 A CN 119916084A CN 202510227669 A CN202510227669 A CN 202510227669A CN 119916084 A CN119916084 A CN 119916084A
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Abstract
The invention relates to the technical field of operation and maintenance of an electric power system, in particular to an intelligent circuit shaking insulation nuclear phase test system and a test method thereof, wherein an insulation resistance test module adopts a self-adaptive algorithm, so that the influence of ambient temperature and humidity on a test result can be eliminated, and the measurement precision of the insulation resistance is obviously improved; the system can quickly complete access and test in a blank stage from the disconnection of the line to be tested to the start of the test of equipment access, so as to avoid the damage to the equipment caused by the rising of the induced voltage, and monitors and adjusts in real time, namely, in the test blank stage, the system monitors the induced voltage of the line in real time, dynamically adjusts the grounding state and the compensation voltage according to the monitoring result, and ensures the safety of the equipment.
Description
Technical Field
The invention relates to the technical field of power system detection, in particular to an intelligent circuit shaking insulation nuclear phase testing system and a testing method thereof.
Background
In an electric power system, insulation resistance measurement and nuclear phase test of a line are important links for ensuring safe operation of electric power equipment. The traditional insulation resistance test and nuclear phase test generally need manual operation, and have the problems that the manual operation is long in time consumption, cannot meet the rapid detection requirement of a large-scale power line, is easy to generate errors, influences the accuracy of a test result, requires close contact with high-voltage equipment by an operator, has potential safety hazards, and also comprises an induced voltage problem, a test neutral period problem and a manual operation potential safety hazard problem; aiming at the problems, an intelligent line shaking insulation nuclear phase testing system and an intelligent line shaking insulation nuclear phase testing method are provided, automatic, high-precision and high-efficiency testing can be realized, and meanwhile, the problems of induced voltage, test idle stage, potential safety hazards caused by manual operation and the like are solved.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide an intelligent circuit shaking insulation nuclear phase testing system and a testing method thereof, which are used for solving the technical problems existing in the background art.
The technical aim of the intelligent circuit shaking insulation nuclear phase test system is achieved through the following technical scheme that the intelligent circuit shaking insulation nuclear phase test system comprises a test host used for collecting and processing test data of a circuit and a data archiving host used for backing up and storing the test data and the test results of the test host, wherein the data archiving host is arranged on a system terminal, the test host is in communication connection with the data archiving host, an insulation resistance test module used for measuring insulation resistance values of the circuit, a nuclear phase test module used for detecting phase consistency of the measured circuit, a wireless communication module used for carrying out data interaction with the data archiving host, a display and operation module used for displaying test results and operation interfaces, the insulation resistance test module and the nuclear phase test module are respectively and electrically connected with the display and operation module, the display and operation module is electrically connected with the wireless communication module, and the wireless communication module is in communication connection with the data archiving host.
Optionally, the insulation resistance testing module comprises a voltage testing unit for applying a testing voltage to the line insulation end, a current sensor for measuring leakage current of the line insulation end and a data processing unit for calculating insulation resistance value of the line insulation end, wherein the voltage testing unit and the current sensor are respectively and electrically connected with the data processing unit, and the data processing unit is electrically connected with the display and operation module.
Optionally, the nuclear phase testing module comprises a plurality of nuclear phase testing units, and the nuclear phase testing units adopt a wireless synchronization technology to realize multi-line synchronous nuclear phase testing so as to detect the consistency of a plurality of nuclear phases of the lines.
The wireless communication module comprises a wireless communication unit, wherein the wireless communication unit is respectively in communication connection with the insulation resistance test module and the nuclear phase test module and is used for receiving test results of the insulation resistance test module and the nuclear phase test module, and the wireless communication unit is in communication connection with the data archiving host and the display and operation module to transmit the test results of the insulation resistance test module and the nuclear phase test module.
Optionally, the data archiving host comprises a data receiving unit for receiving test data and test results transmitted by the wireless communication module and transmitting the test data and test results, a data classifying unit for receiving the data transmitted by the data receiving unit and performing classified numbering, and a data storage unit for classifying and storing the data transmitted by the data receiving unit according to the number of the data classifying unit, wherein a receiving end of the data receiving unit is in communication connection with the wireless communication module, a transmitting end of the data receiving unit is in communication connection with a receiving end of the data classifying unit, and a transmitting end of the data classifying unit is in communication connection with the data storage unit.
Optionally, the remote login checking unit is in communication connection with the data storage unit, and a manager can check test data and test results in any test through the remote login checking unit.
The automatic grounding device comprises a mechanical arm and a grounding wire clamp, one end of the mechanical arm is detachably connected with the grounding wire clamp, the other end of the mechanical arm is detachably connected with the testing host, and the display and operation module can be used for controlling the grounding operation of the grounding wire clamp.
Optionally, the test host further includes an induced voltage suppression module, configured to suppress an induced voltage of the test circuit, so as to ensure test accuracy and safety.
A circuit shaking insulation nuclear phase testing method based on the intelligent circuit shaking insulation nuclear phase testing system comprises the steps of,
Step A, carrying a test host to the site by a detector to ensure that the test host and a data archiving host are in communication connection;
Step B, measuring the insulation resistance value of the line through an insulation resistance test module on the test host, and correcting the measured data through a self-adaptive algorithm to obtain a more accurate insulation resistance value;
step C, detecting the phase consistency of the test line through a nuclear phase test module on the test host;
Step D, displaying test data and test results through a display and operation module on the test host, so that a tester can conveniently check and record and collect the test data;
And E, transmitting the test data to a data archiving host through a wireless communication module on the test host, and analyzing and storing the data by the data archiving host, so that the test of the multiple disks is facilitated in the future.
In summary, the invention has the following beneficial effects:
1. the insulation resistance test module adopts a self-adaptive algorithm, can eliminate the influence of ambient temperature and humidity on a test result, and remarkably improves the accuracy of insulation resistance measurement, and adopts a dynamic grounding technology, namely the induced voltage suppression module adjusts the grounding state and the compensation voltage in real time through the dynamic grounding technology and the voltage compensation algorithm, so that the test result is ensured not to be interfered by the induced voltage.
2. The system can quickly complete the access and the test in the period from the disconnection of the line to be tested to the start of the test of the equipment access, thereby avoiding the damage to the equipment caused by the rising of the induced voltage again, and monitors and adjusts in real time.
Drawings
FIG. 1 is a schematic diagram of the system flow logic of the present invention;
FIG. 2 is a flow chart of the method steps of the present invention.
Detailed Description
In order that the objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Several embodiments of the invention are presented in the figures. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances. The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not to indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
The present invention will be described in detail below with reference to the accompanying drawings and examples.
The invention provides an intelligent line shaking insulation nuclear phase test system, which is shown in figure 1 and comprises a test host used for collecting and processing test data of a line and a data archiving host used for carrying out backup storage on the test data and test results of the test host, wherein the data archiving host is arranged on a system terminal and is in communication connection with the data archiving host, an insulation resistance test module used for measuring insulation resistance values of the line, a nuclear phase test module used for detecting phase consistency of the measured line, a wireless communication module used for carrying out data interaction with the data archiving host, a display and operation module used for displaying test results and operation interfaces, the insulation resistance test module and the nuclear phase test module are respectively and electrically connected with the display and operation module, the display and operation module is electrically connected with the wireless communication module, and the wireless communication module is in communication connection with the data archiving host.
In the specific implementation process, a tester carries and uses the test host to test the insulation resistance test of the circuit and the consistency of the core of the circuit, and displays the test result on the test host, so that the tester can operate and check the test data through the display and operation module on the test host, and meanwhile, the test host communicates with the data archiving host on the system terminal, so that the test data and the test result are backed up at the rear end, and the test result is recorded for a plurality of discs in the future conveniently.
Further, the insulation resistance testing module comprises a voltage testing unit for applying testing voltage to the line insulation end, a current sensor for measuring leakage current of the line insulation end and a data processing unit for calculating insulation resistance value of the line insulation end, wherein the voltage testing unit and the current sensor are respectively and electrically connected with the data processing unit, and the data processing unit is electrically connected with the display and operation module.
In the first embodiment, when the insulation resistance of the line is tested, a voltage test unit applies a test voltage to the insulation end of the line, meanwhile, the leakage current of the insulation end of the line is collected, the current sensor reads data, and the insulation resistance value is calculated according to ohm's law, so that the insulation resistance value of the insulation end of the line is obtained.
Further, the nuclear phase test module comprises a plurality of nuclear phase test units, wherein the nuclear phase test units adopt a wireless synchronization technology to realize multi-line synchronous nuclear phase test so as to detect the consistency of a plurality of nuclear phases of the lines.
In the second embodiment, the nuclear phase testing unit realizes the synchronous nuclear phase testing of multiple lines by a wireless synchronous technology, adopts a time synchronous algorithm to ensure the phase detection time consistency of each test point, extracts the phase information of line voltage signals by Fourier transformation from test data, calculates the phase difference between two points of the lines, and judges the phase consistency of the lines when the phase difference is smaller than a preset threshold value.
The wireless communication module comprises a wireless communication unit, wherein the wireless communication unit is respectively in communication connection with the insulation resistance test module and the nuclear phase test module and is used for receiving test results of the insulation resistance test module and the nuclear phase test module, and the wireless communication unit is in communication connection with the data archiving host and the display and operation module to transmit the test results of the insulation resistance test module and the nuclear phase test module.
In the third embodiment, the wireless communication unit comprises a high-performance Wi-F I chip (such as ESP32 or ESP 8266), supports 2.4GHz and 5GHz dual-band communication, supports the IEEEE802.11a/b/g/n/ac protocol, has a maximum transmission rate of 150Mbps, and receives test results of the insulation resistance test module and the nuclear phase test module and transmits the test results to the data archiving host and the display and operation module.
The display and operation module comprises a display unit for displaying measurement data and measurement results and an operation unit for controlling the system to be opened and closed integrally, wherein the display unit is in communication connection with the wireless communication module, and the operation unit is electrically connected with the insulation resistance test module and the nuclear phase detection module.
In the fourth embodiment, the display unit adopts a high-resolution IPS liquid crystal touch screen, supports multi-point touch and gesture operation, provides smooth user experience, and the operation unit provides a plurality of physical key interfaces for realizing quick operation of common functions, supports key self-defining functions and meets the requirements of different users, so that the starting and ending of testing by inspection personnel through the operation unit are realized, and then the testing data and testing results are checked through the display unit.
The data archiving host comprises a data receiving unit, a data classifying unit and a data storage unit, wherein the data receiving unit is used for receiving test data and test results transmitted by the wireless communication module and transmitting the test data and the test results, the data classifying unit is used for receiving data transmitted by the data receiving unit and carrying out classified numbering, the data storage unit is used for classifying and storing the data transmitted by the data receiving unit according to the serial numbers of the data classifying unit, the receiving end of the data receiving unit is in communication connection with the wireless communication module, the transmitting end of the data receiving unit is in communication connection with the receiving end of the data classifying unit, and the transmitting end of the data classifying unit is in communication connection with the data storage unit.
In the fifth embodiment, the data in the data receiving unit is classified and numbered by the data classifying unit, the classifying basis can be test time, project number, test line name and the like, so that more intelligent storage is realized, and the data storage unit stores the transmitted data in a classified manner according to the numbers, so that a supervisor can check the data through different numbers.
The remote login checking unit is in communication connection with the data storage unit, and a manager can check test data and test results in any test through the remote login checking unit.
The automatic grounding device is used for grounding the test host, the automatic grounding device comprises a mechanical arm and a grounding wire clamp, one end of the mechanical arm is detachably connected with the grounding wire clamp, the other end of the mechanical arm is detachably connected with the test host, and the display and operation module can be used for controlling the grounding operation of the grounding wire clamp.
In the sixth embodiment, in order to ensure safety in an actual testing process, to perform a grounding operation on a testing host, the automatic grounding device adopts a mechanical arm with multiple degrees of freedom, so that the grounding wire clamp can be accurately positioned and operated, wherein a control formula of the mechanical arm is as followsΘ is the rotation angle of the mechanical arm, x and y are the target position coordinates of the grounding wire clamp, and the intelligent control system is adopted, so that the disassembly and assembly work of the grounding wire clamp can be automatically completed according to the test requirement.
Further, the test host also comprises an induced voltage suppression module, which is used for suppressing the induced voltage of the test circuit, so as to ensure the test precision and the safety.
In a seventh embodiment, during the insulation resistance value test of the circuit, the induced voltage suppression module adjusts the grounding state in real time through a dynamic grounding technology to ensure that the induced voltage of the circuit is always within a safe range, wherein the induced compensation grounding voltage formula is V ground＝Vinduced -V, V ground is expressed as the dynamic grounding voltage, V induced is expressed as the induced voltage of the circuit, and V is expressed as the voltage compensation value.
In other embodiments, in the testing process, the method further comprises the step of optimizing the test blank period by adopting a quick access technology, wherein a calculation formula of equipment access time is t access＝tdisconnect +Δt, wherein t access is expressed as equipment access time, t disconnect is expressed as grounding disconnection time of a circuit, and Δt is response time of a testing module, so that accuracy of a testing result is better ensured under the condition that normal operation of an original circuit is not damaged.
A circuit shaking insulation nuclear phase testing method based on the intelligent circuit shaking insulation nuclear phase testing system comprises the steps of,
Step A, carrying a test host to the site by a detector to ensure that the test host and a data archiving host are in communication connection;
Step B, measuring the insulation resistance value of the line through an insulation resistance test module on the test host, and correcting the measured data through a self-adaptive algorithm to obtain a more accurate insulation resistance value;
step C, detecting the phase consistency of the test line through a nuclear phase test module on the test host;
Step D, displaying test data and test results through a display and operation module on the test host, so that a tester can conveniently check and record and collect the test data;
And E, transmitting the test data to a data archiving host through a wireless communication module on the test host, and analyzing and storing the data by the data archiving host, so that the test of the multiple disks is facilitated in the future.
Optionally, the resistance value correction formula of the adaptive algorithm in the step B is that R corrected＝Rins@(1+α·(T-T0)+β·(H-H0)),Rins is an insulation resistance value measured for the first time, R corrected is an insulation resistance value after correction, T is a measured ambient temperature, H is a measured ambient humidity, T 0 is a standard temperature value, H 0 is a standard humidity value, α is a temperature influence coefficient, β is a humidity influence coefficient, and the temperature influence coefficient and the humidity influence coefficient may be automatically divided or manually set by the system to adapt to different working environments.
Optionally, the system in step E adopts a machine learning algorithm to analyze the historical data, predicts the insulation state and the phase change trend of the line, provides scientific basis for the operation and maintenance of the power system, can generate a data analysis report, helps the user to know the change rule of the environmental parameters, and provides an early warning suggestion.
According to the intelligent circuit shaking insulation nuclear phase testing system and the testing method thereof, the insulation resistance testing module adopts the self-adaptive algorithm, so that the influence of the ambient temperature and the humidity on the testing result can be eliminated, and the insulation resistance measuring precision is remarkably improved; the system can quickly complete access and test in a blank stage from the disconnection of the line to be tested to the start of the test of equipment access, so as to avoid the damage to the equipment caused by the rising of the induced voltage, and monitors and adjusts in real time, namely, in the test blank stage, the system monitors the induced voltage of the line in real time, dynamically adjusts the grounding state and the compensation voltage according to the monitoring result, and ensures the safety of the equipment.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (10)
1. The intelligent line shaking insulation nuclear phase test system is characterized by comprising a test host machine and a data archiving host machine, wherein the test host machine is used for collecting and processing test data of a line, and the data archiving host machine is used for carrying out backup storage on the test data and the test result of the test host machine;
The testing host is provided with an insulation resistance testing module, a nuclear phase testing module, a wireless communication module, a display and operation module and a control module, wherein the insulation resistance testing module is used for measuring the insulation resistance value of a line;
The insulation resistance testing module and the nuclear phase testing module are respectively and electrically connected with the display and operation module, the display and operation module is electrically connected with the wireless communication module, and the wireless communication module is in communication connection with the data archiving host.
2. The intelligent line swing insulation nuclear phase testing system according to claim 1, wherein the insulation resistance testing module comprises a voltage testing unit for applying a testing voltage to an insulation end of a line, a current sensor for measuring leakage current of the insulation end of the line and a data processing unit for calculating insulation resistance value of the insulation end of the line, the voltage testing unit and the current sensor are respectively and electrically connected with the data processing unit, and the data processing unit is electrically connected with the display and operation module.
3. The intelligent circuit shaking insulation nuclear phase test system according to claim 1, wherein the nuclear phase test module comprises a plurality of nuclear phase test units, and the nuclear phase test units adopt a wireless synchronization technology to realize multi-circuit synchronous nuclear phase test so as to detect the consistency of a plurality of nuclear phases of a circuit.
4. The intelligent line swing insulation nuclear phase test system according to claim 1, wherein the wireless communication module comprises a wireless communication unit, the wireless communication unit is in communication connection with the insulation resistance test module and the nuclear phase test module respectively and is used for receiving test results of the insulation resistance test module and the nuclear phase test module, and the wireless communication unit is in communication connection with the data archiving host and the display and operation module to transmit the test results of the insulation resistance test module and the nuclear phase test module.
5. The intelligent line swing insulation nuclear phase test system according to claim 1, wherein the display and operation module comprises a display unit for displaying measurement data and measurement results and an operation unit for controlling the system to be opened and closed as a whole;
The display unit is in communication connection with the wireless communication module, and the operation unit is electrically connected with the insulation resistance test module and the nuclear phase detection module.
6. The intelligent line swing insulation nuclear phase test system according to claim 1, wherein the data archiving host comprises a data receiving unit for receiving and transmitting test data and test results transmitted by the wireless communication module, a data classifying unit for receiving and classifying and numbering data transmitted by the data receiving unit, and a data storage unit for classifying and storing the data transmitted by the data receiving unit according to the serial numbers of the data classifying unit;
The receiving end of the data receiving unit is in communication connection with the wireless communication module, the transmitting end of the data receiving unit is in communication connection with the receiving end of the data classifying unit, and the transmitting end of the data classifying unit is in communication connection with the data storage unit.
7. The intelligent line swing insulation nuclear phase test system according to claim 6, further comprising a telnet checking unit, wherein the telnet checking unit is in communication connection with the data storage unit, and a manager can check test data and test results in any test through the telnet checking unit.
8. The intelligent line swing insulation nuclear phase test system according to claim 1, further comprising an automatic grounding device for grounding the test host, wherein the automatic grounding device comprises a mechanical arm and a grounding wire clamp, one end of the mechanical arm is detachably connected with the grounding wire clamp, the other end of the mechanical arm is detachably connected with the test host, and the display and operation module can be used for controlling grounding operation of the grounding wire clamp.
9. The intelligent line swing insulation nuclear phase test system according to claim 1, wherein the test host further comprises an induced voltage suppression module for suppressing the induced voltage of the test line, so as to ensure the test precision and safety.
10. A line swing insulation nuclear phase testing method based on an intelligent line swing insulation nuclear phase testing system according to any one of claims 1-9, comprising,
Step A, carrying a test host to the site by a detector to ensure that the test host and a data archiving host are in communication connection;
Step B, measuring the insulation resistance value of the line through an insulation resistance test module on the test host, and correcting the measured data through a self-adaptive algorithm to obtain a more accurate insulation resistance value;
step C, detecting the phase consistency of the test line through a nuclear phase test module on the test host;
Step D, displaying test data and test results through a display and operation module on the test host, so that a tester can conveniently check and record and collect the test data;
And E, transmitting the test data to a data archiving host through a wireless communication module on the test host, and analyzing and storing the data by the data archiving host, so that the test of the multiple disks is facilitated in the future.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121142447A (en) * | 2025-11-18 | 2025-12-16 | 国网上海市电力公司 | A method and device for controlling the rocking insulation test of a voltage transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121142447A (en) * | 2025-11-18 | 2025-12-16 | 国网上海市电力公司 | A method and device for controlling the rocking insulation test of a voltage transformer |
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