A galloping detection method for eight-bundle transmission lines considering strain insulator strings

Abstract

The present application relates to the technical field of electrical engineering, and more particularly to a kind of eight split transmission line galloping detection method considering strain insulator string.The method is by installing vibration sensor in strain insulator string, three-dimensional displacement sensor is arranged on eight strand conductor, and remote intelligent platform is constructed to process data.The platform sets amplitude galloping ratio R, and obtains galloping threshold value according to the model established according to relevant parameters.When the vibration sensor detects that the amplitude exceeds the ratio, the sub-conductor movement data is recorded, and whether the sub-conductor touches is judged and the staff is informed.At the same time, the platform estimates the movement data to calculate the overall and single galloping value, and compares it with the threshold value, and if it exceeds the threshold value, the staff is notified.This method has accurate calculation formula and rigorous steps, realizes multi-sensor collaborative monitoring and scientific judgment of galloping, and provides strong support for the safe and stable operation of power system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical engineering, and particularly relates to a galloping detection method for eight-bundle transmission lines considering strain insulator strings. BACKGROUND

[0002] With the rapid development of economy and the increasing demand for electricity in society, the stability and reliability of power transmission become crucial. Eight-bundle transmission lines, as an efficient power transmission method, have been widely used in modern power systems. However, under certain meteorological conditions, eight-bundle transmission lines are prone to galloping, which poses a great challenge to the safe operation of power systems. Galloping refers to the large-amplitude, low-frequency vibration of transmission line conductors under the action of wind. When strong wind interacts with the ice cover on the surface of transmission line conductors, it may trigger the galloping of the conductors. Due to the particularity of its structure, eight-bundle transmission lines are more susceptible to galloping. Galloping not only causes fatigue damage to conductors, damage to fittings, and tilting of towers, but also may lead to line tripping, power outage, and other accidents, seriously affecting the normal operation of power systems. Traditional galloping detection methods for transmission lines mainly focus on monitoring the conductors themselves, such as measuring the vibration parameters of the conductors through acceleration sensors, displacement sensors, and other devices installed on the conductors. However, these methods often overlook the important role of strain insulator strings in the galloping process. Strain insulator strings are important components that connect transmission line conductors and towers, and they not only serve as insulators but also bear the tension of the conductors. During galloping, strain insulator strings move with the conductors, and their mechanical properties and movement states have a significant impact on the galloping of the conductors.

[0003] The complexity of the structure of eight-bundle transmission lines also increases the difficulty of galloping detection. The interaction between the eight-bundle conductors and the coordinated movement with the strain insulator strings make it difficult for traditional detection methods to accurately determine the galloping situation. At the same time, since eight-bundle transmission lines usually span a long distance and are distributed in different terrains and meteorological conditions, this also poses a great challenge to galloping detection. SUMMARY

[0004] To address the shortcomings of traditional galloping detection methods and improve the accuracy and reliability of galloping detection for eight-bundle transmission lines, the present application proposes the following technical solutions:

[0005] A galloping detection method for eight-bundle transmission lines considering strain insulator strings, characterized by the following steps:

[0006] S1: Carefully install vibration sensors on the tension insulator string, and at the same time, install three-dimensional displacement sensors on each of the eight sub-conductors of the eight-bundle transmission line. Then, accurately adjust each three-dimensional displacement sensor, and set the origin coordinates of each three-dimensional displacement sensor to the position of the corresponding sub-conductor when it is in a static state. Such setting can provide a reliable reference for subsequent accurate measurement of the displacement change of the sub-conductor.

[0007] S2: Construct a remote intelligent platform and connect the three-dimensional displacement sensors and vibration sensors to the platform. Set the amplitude galloping ratio R, construct a model based on the relevant parameters of the tension insulator string and the eight-bundle transmission line, and then obtain the overall galloping threshold and the individual galloping threshold. The determination of these thresholds is based on the comprehensive analysis of various characteristics of the transmission line, and they will serve as important standards for judging the severity of galloping.

[0008] S3: When the amplitude detected by the vibration sensor exceeds the set amplitude galloping ratio R, it is preliminarily determined that galloping may occur. At this time, the remote intelligent platform will record the motion data of each sub-conductor periodically at a set time interval. In this way, dynamic changes during galloping can be captured in time, providing rich data support for subsequent analysis.

[0009] S4: The remote intelligent platform determines whether the sub-conductors of the eight-bundle transmission line have touched each other based on the recorded motion data. Once it is determined that the sub-conductors of the eight-bundle transmission line have touched each other, the remote intelligent platform will promptly notify the staff. This can ensure that appropriate measures can be taken in time when potential dangerous situations occur, ensuring the safe operation of the transmission line.

[0010] S5: The remote intelligent platform accurately estimates the detected motion data and calculates the individual galloping value and the overall galloping value of each line. The overall galloping value is calculated based on the individual galloping value of each line. Then, compare the overall galloping value with the overall galloping threshold, and compare the individual galloping value with the individual galloping threshold. When the overall galloping value exceeds the overall galloping threshold or the individual galloping value exceeds the individual galloping threshold, the remote intelligent platform will promptly notify the staff so that effective measures can be taken.

[0011] In S2, when setting the amplitude galloping ratio R, the relevant expression is as follows:

[0012]

[0013] In the formula, A min represents the minimum amplitude value when the line gallops, represents the wind speed in the normal situation of the region, L represents the length of the sub-conductor, F averageThe average tension of the line in normal operation is represented, k1, k2, k3 are weighting coefficients, and ∈ represents an amplitude factor fine adjustment factor set according to experience; wherein, k1, k2, k3 are 1 in total; the smaller the value of ∈, the smaller R is.

[0014] In S2, when calculating the monomer galloping threshold T dance , the overall galloping threshold T total , the relevant expression is as follows:

[0015]

[0016] T total = k5 x F item + k6 x n x T dance ,

[0017] In the formula, x max represents the maximum coordinate value of the sub-conductor in the left-right direction within 5 seconds, y max represents the maximum coordinate value of the sub-conductor in the up-down direction within 5 seconds, T strength represents the tensile strength of the sub-conductor, m represents the weight of a single sub-conductor of the eight-bundle transmission line, L represents the average length of the sub-conductor of the eight-bundle transmission line, T dance represents the monomer galloping threshold, F item represents the tension strength of the strain insulator string, k1, k2, k3, k4, k5, k6 are set weighting coefficients; wherein, k1, k2, k3, k4 are 1 in total; k5, k6 are 1 in total.

[0018] In S1, when regulating each three-dimensional displacement sensor, the origin coordinates of each three-dimensional displacement sensor are set as the positions of the corresponding sub-conductor in the static state; when each three-dimensional displacement sensor detects the motion data of the corresponding sub-conductor, the data points in the two-dimensional coordinates in the left-right direction and the up-down direction based on the origin coordinates are detected.

[0019] In S3, the relevant expression of the time interval is as follows:

[0020]

[0021] In the formula, A represents the vibration amplitude value detected by the vibration sensor, f represents the sampling frequency of the vibration sensor, m represents the weight of a single sub-conductor of the eight-bundle transmission line, L represents the average length of the sub-conductor of the eight-bundle transmission line, and w1 represents an interval regulation factor set according to experience; wherein, w1 is greater than 0 and less than 1; the smaller the value of w1, the smaller the value of T is.

[0022] In S4, when judging whether the eight-bundle transmission line is in contact, the specific steps are as follows:

[0023] S41: Number each sub-conductor of the eight-split transmission line from left to right in sequence, and associate with the motion data of each sub-conductor;

[0024] S42: Extract the coordinate information of each sub-conductor except the 8th sub-conductor and the coordinate information of the first adjacent sub-conductor on the right side;

[0025] S43: According to the data extracted in S42, calculate the two-line position relationship measure value of each sub-conductor except the 8th sub-conductor and the first adjacent sub-conductor on the right side respectively;

[0026] S44: Combine the two-line position relationship measure value of each sub-conductor calculated in S43 into a set, and compare the value in the set with the set touch threshold d min , when there is a value greater than or equal to d min in the set, it is considered that the eight-split transmission line has touch.

[0027] In S43, when calculating the two-line position relationship measure value d of the sub-conductor and the first adjacent sub-conductor on the right side, the specific expression is as follows:

[0028] d = (x1-x2) x |y1-y2|,

[0029] In the formula, x1 represents the motion data left-right direction coordinate value of the sub-conductor to be calculated, y1 represents the motion data up-down direction coordinate value of the sub-conductor to be calculated, x2 represents the motion data left-right direction coordinate value of the first adjacent sub-conductor on the right side of the sub-conductor to be calculated, and y2 represents the motion data up-down direction coordinate value of the first adjacent sub-conductor on the right side of the sub-conductor to be calculated.

[0030] In S44, the touch determination value E is related to the expression as follows:

[0031] d min = (n-r1) x (m-r2),

[0032] In the formula, n represents the distance between the left-right direction of the sub-conductor to be calculated and the first adjacent sub-conductor on the right side, m represents the distance between the up-down direction of the sub-conductor to be calculated and the first adjacent sub-conductor on the right side, r1 represents the radius of the sub-conductor to be calculated, and r2 represents the radius of the first adjacent sub-conductor on the right side of the sub-conductor to be calculated.

[0033] In S5, when calculating the single-body galloping value, the related expression is as follows:

[0034]

[0035] In the formula, x min represents the minimum coordinate value of the sub-conductor in the left-right direction within 5 seconds, and ymax D represents the maximum coordinate value of the up-down direction of the sub-conductor within 5 seconds, m represents the weight of a single sub-conductor of the eight-split transmission line, L represents the average length of the sub-conductor of the eight-split transmission line, and k1 and k2 are weighting coefficients, wherein k1 and k2 are 1 in total.

[0036] In S5, when the overall galloping value is calculated, the related expression is as follows:

[0037]

[0038] In the formula, D i D represents the galloping value of the i-th wire in the set D={D1, D2, D3, D4, D5, D6, D7, D8}, A max D represents the maximum vibration amplitude value appearing within 5 seconds, k1 and k2 are set weighting coefficients; wherein k1 is in the range of 0.7-0.9, k2 is in the range of 0.1-0.3, k1 and k2 are 1 in total; and the set D is the single galloping value of each sub-conductor of the eight sub-conductors of the eight-split transmission line.

[0039] The present application has the following beneficial effects:

[0040] 1. The present application realizes comprehensive monitoring through multi-sensor cooperative monitoring. By installing vibration sensors on the tension insulator string and three-dimensional displacement sensors on the eight sub-conductors, the movement of the conductors and the vibration information of the tension insulator string can be detected, and the galloping state of the transmission line can be comprehensively understood.

[0041] 2. The present application provides rich data through two-dimensional coordinate data acquisition. Each three-dimensional displacement sensor collects data points in the two-dimensional coordinates determined based on the origin coordinates in the left-right direction and the up-down direction when detecting the corresponding sub-conductor movement data, accurately reflects the in-plane movement of the sub-conductor, and provides rich data for subsequent analysis and judgment.

[0042] 3. The present application improves the accuracy of judgment by scientifically setting the threshold value. According to the model established based on the relevant parameters of the tension insulator string and the eight-split transmission line, the overall galloping threshold value and the single galloping threshold value are obtained. The threshold value calculation considers multiple key factors, making the threshold value setting more scientific and reasonable, and improving the accuracy of galloping judgment.

[0043] 4. The present application provides reliable basis by accurately calculating the galloping value. Through a series of accurate calculation formulas, such as the expressions for calculating the single galloping value and the overall galloping value, the galloping degree of the transmission line is accurately quantified, providing reliable basis for judging the galloping condition.

[0044] 5、The application accurately judges the contact and discovers the hidden danger in time. When judging whether the contact between the sub-conductors of the eight-split transmission line occurs, the rigorous steps and calculation formula are adopted to accurately judge whether the contact between the sub-conductors occurs and discover the potential safety hidden danger in time. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 It is a step schematic diagram of the eight-split transmission line galloping detection method considering the strain insulator string.

[0046] Figure 2 It is a step schematic diagram of the eight-split transmission line galloping detection method considering the strain insulator string for judging whether the contact between the eight-split transmission lines occurs. DETAILED DESCRIPTION

[0047] An eight-split transmission line galloping detection method considering a strain insulator string, characterized in that it comprises the following steps:

[0048] S1: install a vibration sensor on the strain insulator string, and simultaneously install three-dimensional displacement sensors on the eight sub-conductors of the eight-split transmission line; adjust and control each three-dimensional displacement sensor, and set the origin coordinates of each three-dimensional displacement sensor as the positions of the corresponding sub-conductors in the static state; when adjusting and controlling each three-dimensional displacement sensor, set the origin coordinates of each three-dimensional displacement sensor as the positions of the corresponding sub-conductors in the static state; when each three-dimensional displacement sensor detects the motion data of the corresponding sub-conductor, the detected data points are in the two-dimensional coordinates determined based on the origin coordinates, the left-right direction and the up-down direction.

[0049] The vibration sensor is installed on the strain insulator string and is mainly used for monitoring the vibration of the insulator string and the nearby transmission line. When the transmission line is excited by natural environment such as wind, rain, and snow, or vibrates due to current load change, mechanical failure, etc., the vibration sensor can capture these vibration signals. These signals can be processed and analyzed to evaluate the health condition of the transmission line and discover potential faults or damages in time.

[0050] The three-dimensional displacement sensors are installed on the eight sub-conductors of the eight-split transmission line. After installation, each three-dimensional displacement sensor is adjusted and controlled, and the origin coordinates thereof are set as the positions of the corresponding sub-conductors in the static state. This step is the key to ensuring the accuracy of subsequent displacement monitoring data.

[0051] When the sub-conductors move (such as swinging due to wind, thermal expansion and contraction due to temperature change, etc.), the three-dimensional displacement sensors can detect and record these motion data in real time.

[0052] The detected data are data points in a two-dimensional coordinate determined in left-right and up-down directions based on a set origin coordinate. Although the sensor itself is three-dimensional, in this application scenario, the main concern is the displacement change of the sub-conductor within the horizontal plane (left-right direction) and the vertical plane (up-down direction).

[0053] By analyzing these data points, key information such as the motion trajectory and displacement amplitude of the sub-conductor can be understood, thereby evaluating the stability and safety of the power transmission line.

[0054] S2: Construct a remote intelligent platform, connect the three-dimensional displacement sensor and the vibration sensor to the platform, set the amplitude-to-dance ratio R, establish a model according to the related parameters of the tension insulator string and the eight-split transmission line, and obtain the overall dance threshold and the single-body dance threshold; when setting the amplitude-to-dance ratio R, the related expression is as follows:

[0055]

[0056] In the formula, A min represents the minimum amplitude value when the line appears to dance, represents the wind speed in the normal situation of the region, L represents the length of the sub-conductor, F average represents the average tension of the line in normal operation, k1, k2, and k3 are weighting coefficients, and ∈ represents an amplitude factor fine tuning factor set according to experience; wherein k1, k2, and k3 are 1 in total; the smaller the value of ∈, the smaller R is.

[0057] When calculating the single-body dance threshold T dance and the overall dance threshold T total , the related expressions are as follows:

[0058]

[0059] T total = k5 × F item + k6 × n × T dance ,

[0060] In the formula, x max represents the maximum coordinate value of the sub-conductor in the left-right direction within 5 seconds, y max represents the maximum coordinate value of the sub-conductor in the up-down direction within 5 seconds, T strength represents the tensile strength of the sub-conductor, m represents the weight of a single sub-conductor of the eight-split transmission line, L represents the average length of the sub-conductor of the eight-split transmission line, T dance represents the single-body dance threshold, F item represents the tension strength of the tension insulator string, and k1, k2, k3, k4, k5, and k6 are set weighting coefficients; wherein k1, k2, and k3 are 1 in total; k4 is 1; k5 and k6 are 1 in total.

[0061] When constructing a remote intelligent platform and connecting three-dimensional displacement sensors and vibration sensors to monitor and analyze the galloping of tension insulator strings and eight-bundle transmission lines, setting the amplitude-galloping ratio R and its related parameter model is a complex but crucial process. Here is a detailed explanation of this process and the working mechanism:

[0062] The amplitude-galloping ratio R is an important parameter for describing the characteristics of line galloping, which takes into account various factors, including the minimum amplitude value when the line gallops, the normal wind speed in the area, the length of the sub-conductor, and the average tension of the line during normal operation. The specific expression may involve multiple weighting coefficients and amplitude factor fine-tuning factors set by experience. These parameters together determine the value of R, reflecting the sensitivity and possibility of line galloping.

[0063] Individual Galloping Threshold: The individual galloping threshold refers to the minimum amplitude at which a single sub-conductor gallops under certain conditions. Its calculation takes into account factors such as the tensile strength of the sub-conductor, weight, average length, and tensile strength of the tension insulator string. By considering these factors comprehensively, the stress and stability of the individual sub-conductor during galloping can be evaluated.

[0064] Overall Galloping Threshold: The overall galloping threshold refers to the minimum amplitude at which the entire eight-bundle transmission line gallops under certain conditions. Its calculation is more complex because it needs to consider the interaction between all sub-conductors and the structural characteristics of the entire line. By calculating the overall galloping threshold, the overall stability and safety of the entire line during galloping can be evaluated.

[0065] Data Collection: Three-dimensional displacement sensors and vibration sensors collect displacement and vibration data of tension insulator strings and eight-bundle transmission lines in real time. These data are the basis for subsequent analysis and calculation.

[0066] Data Processing: The collected data are processed and analyzed by the remote intelligent platform. The platform uses advanced algorithms and models to process the data to extract useful information and evaluate the galloping of the line.

[0067] Threshold Calculation: According to the set amplitude-galloping ratio R and related expressions, the platform calculates the individual galloping threshold and overall galloping threshold. These thresholds are used to evaluate the galloping risk and stability of the line under certain conditions.

[0068] Warning and Decision: When the monitored amplitude exceeds the set threshold, the platform will issue a warning signal and provide corresponding decision recommendations. These recommendations can help operation and maintenance personnel take timely measures to prevent or mitigate the impact of line galloping accidents.

[0069] By setting the amplitude galloping ratio R, calculating the single galloping threshold and the overall galloping threshold, and deeply understanding the working mechanism, the galloping risk and stability of the line can be more accurately evaluated, providing strong decision support for operation and maintenance personnel.

[0070] S3: When the amplitude detected by the vibration sensor exceeds the set amplitude galloping ratio R, it is determined that galloping may occur, and the remote intelligent platform will record the motion data of each sub-conductor periodically at a set time interval; the related expression of the time interval is as follows:

[0071]

[0072] In the formula, A represents the vibration amplitude value detected by the vibration sensor, f represents the sampling frequency of the vibration sensor, m represents the weight of the single sub-conductor of the eight-split transmission line, L represents the average length of the sub-conductor of the eight-split transmission line, and w1 represents the interval control factor set according to experience; wherein w1 is greater than 0 and less than 1; the smaller the value of w1, the smaller the value of T.

[0073] Vibration detection and judgment: The vibration sensor detects the vibration of the line in real time, and compares the detected vibration amplitude value with the set amplitude galloping ratio R. If the vibration amplitude value exceeds R, it is determined that galloping may occur.

[0074] Time interval calculation: According to the expression of the time interval T and the related parameters, it is calculated how to record the data according to the time interval. This time interval is dynamically adjusted, and changes according to the changes of vibration amplitude, sampling frequency, sub-conductor weight and length, and interval control factor, etc.

[0075] Periodic recording: The remote intelligent platform records the motion data of each sub-conductor periodically according to the calculated time interval T. These data include but are not limited to displacement, speed, acceleration and other key information, which are used for subsequent analysis and processing.

[0076] Data analysis and early warning: The recorded data will be transmitted to the remote intelligent platform for analysis and processing. By comparing historical data and current data, the galloping situation and trend of the line can be evaluated. If abnormal situation or increased galloping risk is detected, the platform will send an early warning signal in time to remind the operation and maintenance personnel to take corresponding measures.

[0077] S4: The remote intelligent platform determines whether the sub-conductors of the eight-split transmission line have touched each other according to the recorded motion data, and notifies the staff when it is determined that the sub-conductors of the eight-split transmission line have touched each other; when determining whether the sub-conductors of the eight-split transmission line have touched each other, the specific steps are as follows:

[0078] S41: Number each sub-conductor of the eight-split transmission line from left to right in sequence, and associate with the motion data of each sub-conductor;

[0079] S42: Extract the coordinate information of each sub-conductor except the 8th sub-conductor and the coordinate information of the first adjacent line to the right of each sub-conductor;

[0080] S43: According to the data extracted in S42, calculate the two-line position relationship measure value of each sub-conductor except the 8th sub-conductor and the first adjacent sub-conductor to the right.

[0081] S44: Combine the two-line position relationship measure value of each line calculated in S43 into a set, and compare the value in the set with the set touch threshold d min , when there is a value greater than or equal to d min in the set, it is considered that the eight-split transmission line has touch.

[0082] In calculating the two-line position relationship measure value d of the sub-conductor and the first adjacent sub-conductor to the right, the specific expression is as follows:

[0083] d = (x1-x2) x |y1-y2|,

[0084] In the formula, x1 represents the motion data left-right coordinate value of the sub-conductor to be calculated, y1 represents the motion data up-down coordinate value of the sub-conductor to be calculated, x2 represents the motion data left-right coordinate value of the first adjacent line to the right of the sub-conductor to be calculated, and y2 represents the motion data up-down coordinate value of the first adjacent line to the right of the sub-conductor to be calculated.

[0085] The touch determination value E is related to the expression as follows:

[0086] d min = (n-r1) x (m-r2),

[0087] In the formula, n represents the distance between the left-right direction of the sub-conductor to be calculated and the first adjacent sub-conductor to the right, m represents the distance between the up-down direction of the sub-conductor to be calculated and the first adjacent sub-conductor to the right, r1 represents the radius of the sub-conductor to be calculated, and r2 represents the radius of the first adjacent sub-conductor to the right of the sub-conductor to be calculated.

[0088] Data collection and association: The remote intelligent platform collects the motion data of each sub-conductor of the eight-split transmission line in real time, and associates with the number of the sub-conductor.

[0089] Coordinate information extraction and calculation: Extract the coordinate information of each sub-conductor and the first adjacent sub-conductor to the right, and calculate the position relationship measure value between them.

[0090] Collision judgment: Compare the calculated position relationship metric value with the set collision threshold to determine whether collision occurs between the eight-split transmission lines.

[0091] Early warning and notification: When it is judged that collision occurs, the remote intelligent platform will timely notify the staff so as to take corresponding measures for processing.

[0092] S5: The remote intelligent platform estimates the detected motion data, calculates the overall galloping value and the single galloping value of each strand of line, calculates the overall galloping value according to the single galloping value of each strand of line, compares the overall galloping value with the overall galloping threshold value and compares the single galloping value with the single galloping threshold value, and notifies the staff when the overall galloping value exceeds the overall galloping threshold value or the single galloping value exceeds the single galloping threshold value. In calculating the single galloping value, the relevant expression is as follows:

[0093]

[0094] In the formula, x min represents the minimum coordinate value of the sub-conductor in the left-right direction within 5 seconds, y max represents the maximum coordinate value of the sub-conductor in the up-down direction within 5 seconds, m represents the weight of the single strand of sub-conductor of the eight-split transmission line, L represents the average length of the sub-conductor of the eight-split transmission line, and k1 and k2 are weighting coefficients, wherein k1 and k2 are 1 in total.

[0095] In calculating the overall galloping value, the relevant expression is as follows:

[0096]

[0097] In the formula, D i represents the galloping value of the i-th line in the set D={D1, D2, D3, D4, D5, D6, D7, D8}, A max represents the maximum vibration amplitude value appearing within 5 seconds, k1 and k2 are set weighting coefficients; wherein k1 takes a value in the range of 0.7-0.9, k2 takes a value in the range of 0.1-0.3, and k1 and k2 are 1 in total; and the set D is the single galloping value of each strand of sub-conductor of the eight strands of sub-conductor of the eight-split transmission line.

[0098] Data acquisition and processing: The remote intelligent platform acquires the motion data of each strand of sub-conductor of the eight-split transmission line in real time, and processes and analyzes the data.

[0099] Single galloping value calculation: According to the maximum and minimum coordinate values of the sub-conductor in the left-right direction and the up-down direction, as well as the weight and average length of the sub-conductor, the single galloping value of each strand of sub-conductor is calculated.

[0100] Whole galloping value calculation: according to the single galloping value of each sub-conductor and the set weighting coefficient, the whole galloping value of the eight-split transmission line is calculated.

[0101] Galloping judgment and early warning: the calculated whole galloping value and single galloping value are compared with the set threshold value, whether the galloping condition occurs is judged, and the staff is timely notified.

Claims

1. A method for galloping detection of an eight-bundle transmission line with strain insulator strings, characterized in that, It comprises the following steps: S1: install vibration sensors on the strain insulator string, and install three-dimensional displacement sensors on the eight sub-conductors of the eight-bundle transmission line respectively, adjust and control each three-dimensional displacement sensor, and set the origin coordinates of each three-dimensional displacement sensor as the positions of the corresponding sub-conductors in the static state; S2: build a remote intelligent platform, connect the three-dimensional displacement sensors and the vibration sensors to the platform, set the amplitude galloping ratio R, establish a model according to the relevant parameters of the strain insulator string and the eight-bundle transmission line, and obtain the overall galloping threshold value and the single galloping threshold value; S3: when the amplitude detected by the vibration sensor exceeds the set amplitude galloping ratio R, it is determined that galloping may occur, and the remote intelligent platform will record the motion data of each sub-conductor periodically at a set time interval; S4: the remote intelligent platform determines whether the sub-conductors of the eight-bundle transmission line have touched each other according to the recorded motion data, and notifies the staff when the sub-conductors of the eight-bundle transmission line have touched each other; S5: the remote intelligent platform estimates the detected motion data, calculates the overall galloping value and the single galloping value of each line, compares the overall galloping value with the overall galloping threshold value and compares the single galloping value with the single galloping threshold value, and notifies the staff when the overall galloping value exceeds the overall galloping threshold value or the single galloping value exceeds the single galloping threshold value; In S2, when setting the amplitude galloping ratio R, the relevant expression is as follows: In the formula, A min represents the minimum amplitude value when the line appears to flutter, represents the wind speed in the normal situation of the region, L represents the length of the sub-conductor, F average represents the average tension of the line in normal operation, k1, k2, and k3 are weighting coefficients, and ∈ represents an amplitude factor fine adjustment factor set according to experience; wherein the sum of k1, k2, and k3 is 1; the smaller the value of ∈, the smaller R is; In S2, when calculating the single-body flutter threshold T dance , the overall flutter threshold T total , the relevant expression is as follows: T total = k5 x F item + k6 x n x T dance , In the formula, x max represents the maximum coordinate value of the left and right directions of the sub-conductor within 5 seconds, y max represents the maximum coordinate value of the up and down directions of the sub-conductor within 5 seconds, T strength represents the tensile strength of the sub-conductor, m represents the weight of a single sub-conductor of the eight-bundle transmission line, L represents the average length of the sub-conductor of the eight-bundle transmission line, T dance represents the monomer galloping threshold value, F item represents the tension strength of the tension insulator string, k1, k2, k3, k4, k5, k6 are set weighting coefficients; wherein, k1, k2, k3, k4 are 1 in total; k5, k6 are 1 in total; In S5, when calculating the single galloping value, the relevant expression is as follows: wherein x min represents the minimum coordinate value of the left-right direction of the sub-conductor within 5 seconds, y min represents the minimum coordinate value of the up-down direction of the sub-conductor within 5 seconds, m represents the weight of a single sub-conductor of an eight-bundle transmission line, L represents the average length of the sub-conductor of the eight-bundle transmission line, and k1 and k2 are weighting coefficients, wherein k1 and k2 add up to 1; In S5, when calculating the overall galloping value, the relevant expression is as follows: In the formula, D i represents the i-th line in the set D = {D1, D2, D3, D4, D5, D6, D7, D8} flutter value, A max represents the maximum vibration amplitude value appearing in 5 seconds, k1, k2 are set weighting coefficients; wherein k1 value range is 0.7-0.9, k2 value range is 0.1-0.3, k1 and k2 total is 1; set D is the single body flutter value of each sub-conductor of eight sub-conductors of eight split transmission lines.

2. A method for galloping detection of an eight-bundled transmission line considering the strain insulator string according to claim 1, characterized in that, In S1, when adjusting and controlling each three-dimensional displacement sensor, the origin coordinates of each three-dimensional displacement sensor are set as the positions of the corresponding sub-conductors in the static state; when each three-dimensional displacement sensor detects the motion data of the corresponding sub-conductor, it detects the data points in the two-dimensional coordinates determined based on the origin coordinates in the left-right direction and the up-down direction.

3. A method for galloping detection of an eight-bundled transmission line considering the strain insulator string according to claim 1, characterized in that, In S3, the relevant expression of the time interval is as follows: In the formula, A represents the vibration amplitude value detected by the vibration sensor, f represents the sampling frequency of the vibration sensor, m represents the weight of the single sub-conductor of the eight-bundle transmission line, L represents the average length of the sub-conductor of the eight-bundle transmission line, and w1 represents the interval control factor set according to experience; wherein w1 is greater than 0 and less than 1; the smaller the value of w1, the smaller the value of T.

4. A method of galloping detection of an eight-bundled transmission line considering the strain insulator string according to claim 1, characterized in that, In S4, when determining whether the sub-conductors of the eight-bundle transmission line have touched each other, the specific steps are as follows: S41: number each sub-conductor of the eight-bundle transmission line from left to right, and associate the motion data of each sub-conductor; S42: extract the coordinate information of each sub-conductor except the eighth sub-conductor and the coordinate information of the first line adjacent to the right of each sub-conductor; S43: According to the data extracted in S42, the two-line position relationship measure value of each sub-conductor except the eighth sub-conductor and the first sub-conductor adjacent to the right side thereof is calculated respectively; S44: combine the two-wire position relation metric values of each line calculated in S43 into a set, and compare the values in the set with a set touch threshold value d min When there is a value greater than or equal to d min in the set, it is considered that the eight-split transmission line has touched.

5. A method for galloping detection of an eight-bundled transmission line with strain insulator strings as claimed in claim 4, wherein In S43, when calculating the two-line position relationship measure value d of the sub-conductor and the first sub-conductor adjacent to the right side thereof, the specific expression is as follows: d = (x1-x2) x |y1-y2|, In the formula, x1 represents the motion data left-right direction coordinate value of the sub-conductor to be calculated, y1 represents the motion data up-down direction coordinate value of the sub-conductor to be calculated, x2 represents the motion data left-right direction coordinate value of the first sub-conductor adjacent to the right side of the sub-conductor to be calculated, and y2 represents the motion data up-down direction coordinate value of the first sub-conductor adjacent to the right side of the sub-conductor to be calculated.

6. A method of galloping detection of an eight bundled transmission line with strain insulator strings as claimed in claim 4, wherein In S44, the collision determination value E is determined, and the relevant expression is as follows: d min = (n - r1) x (m - r2); In the formula, n represents the left-right direction distance between the sub-conductor to be calculated and the first sub-conductor adjacent to the right side thereof, m represents the up-down direction distance between the sub-conductor to be calculated and the first sub-conductor adjacent to the right side thereof, r1 represents the radius of the sub-conductor to be calculated, and r2 represents the radius of the first sub-conductor adjacent to the right side of the sub-conductor to be calculated.

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