Power transmission line operation state monitoring system based on power transmission management

Abstract

The invention discloses a power transmission line operation state monitoring system based on power transmission management, relates to the technical field of power transmission line monitoring, and solves the technical problem in the prior art that hidden danger analysis and early warning cannot be carried out on a line when the line is normally operated and transmitted. Specifically, an operation hidden danger monitoring unit obtains vibration influence data and galloping influence data of the power transmission line, whether operation hidden danger exists in operation of the power transmission line or not is deduced according to data analysis, and after operation hidden danger monitoring is qualified, a line operation evaluation unit collects line operation evaluation information; a line operation evaluation coefficient is obtained through calculation, whether the line transmission operation state is qualified or not is deduced according to coefficient comparison, and targeted line regulation and control are carried out through a line monitoring platform according to signals generated through data analysis.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission line monitoring, and in particular to a power transmission line operation status monitoring system based on power transmission management. Background Art

[0002] In recent years, with the improvement of living standards, the electric power industry, as a leading industry, has achieved rapid development, and the installed capacity of the system and the voltage level of the transmission line have been continuously improved. With the increase of installed capacity of the power system, the increase of operating voltage level and the expansion of grid coverage, on the one hand, the reliability and economy of operation have been improved, but on the other hand, the scope of system operation failures and the impact on industrial and agricultural production and people's lives have become increasingly larger.

[0003] The invention patent with announcement number CN118539596A discloses a transmission line overhead line operation status monitoring system and operation method, which relates to the field of line detection. The data center integrated power supply control system extracts and processes the power supply information of the power consumption end through the data extraction module and the data processing module, and monitors the processed data in real time through the data status monitoring module. For abnormal data, the data abnormality diagnosis module performs data diagnosis to determine the cause of the abnormality.

[0004] However, it is impossible to conduct real-time impact analysis on the power transmission line itself, and it is impossible to continuously monitor and analyze the real-time impact after ensuring that the line status is qualified. In addition, it is impossible to conduct hidden danger analysis and early warning on the line when the line is operating normally, which reduces the feasibility of power transmission.

[0005] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0006] The purpose of the present invention is to solve the above-mentioned problems and to propose a transmission line operation status monitoring system based on power transmission management.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A transmission line operation status monitoring system based on power transmission management includes a line monitoring platform, which is communicatively connected to a line online monitoring unit, a real-time impact monitoring unit, an operation hidden danger monitoring unit, and a line operation evaluation unit;

[0009] The line online monitoring unit obtains the operation time period of the power transmission line and selects the middle moment of the operation time period and any moment at the beginning and end of the operation time period, and uniformly constructs the selected moments as online monitoring moments; infers whether the online monitoring is qualified through online line data collection and analysis, and if qualified, the real-time impact monitoring unit performs real-time impact analysis on the transmission time period of the power transmission line, obtains line change information and line impact information, and infers whether the real-time impact analysis is normal based on information comparison;

[0010] After the impact analysis is normal, the operation hidden danger monitoring unit obtains the vibration impact data and dancing impact data of the power transmission line, and infers whether there are operation hidden dangers in the operation of the power transmission line based on the data analysis. After the operation hidden danger monitoring is qualified, the line operation evaluation unit collects the line operation evaluation information, obtains the line operation evaluation coefficient through calculation, and infers whether the line transmission operation status is qualified based on the coefficient comparison, and performs targeted line regulation through the line monitoring platform according to the signal generated by the data analysis.

[0011] As a preferred embodiment of the present invention, the operation process of the line online monitoring unit is as follows:

[0012] When the transmission loss power fluctuation trend of the power transmission line corresponding to the adjacent online monitoring time is obtained, if the transmission loss power fluctuation trend shows a continuous increasing trend and the actual transmission loss power exceeds the set threshold, an insulation abnormality signal is generated; if the transmission loss power fluctuation trend shows a reciprocating floating trend and the actual transmission loss power exceeds the set threshold, a transmission abnormality signal is generated;

[0013] If the transmission loss power fluctuation trend is a reciprocating fluctuation trend and the actual transmission loss power does not exceed the set threshold, the pollution information on the surface of the power transmission line corresponding to the online monitoring time is collected, wherein the pollution information includes the pollution area on the line surface and the conductivity impact value of the pollutants.

[0014] As a preferred embodiment of the present invention, if any data of the pollution information on the surface of the power transmission line exceeds the corresponding set threshold, a transmission risk signal is generated; if any data of the pollution information on the surface of the power transmission line does not exceed the corresponding set threshold, an online monitoring normal signal is generated.

[0015] As a preferred embodiment of the present invention, the line change information and the line impact information are respectively the overlapping duration of the period of increase in the line surface thickness change value and the period of increase in transmission loss during the transmission process of the power transmission line, and the delay duration of the adjacent time nodes corresponding to the time node of increase in the line surface thickness change peak value and the time node of increase in transmission loss during the transmission process of the power transmission line.

[0016] As a preferred embodiment of the present invention, if the line change information exceeds the time period overlap duration threshold, or the line impact information does not exceed the delay duration threshold, a real-time impact abnormal signal is generated; if the line change information does not exceed the time period overlap duration threshold, and the line impact information exceeds the delay duration threshold, a real-time impact normal signal is generated and sent to the line monitoring platform.

[0017] As a preferred embodiment of the present invention, the vibration impact data and the dancing impact data are respectively the speed ratio of the vibration frequency increase rate to the vibration amplitude decrease rate during the line vibration stage when the power transmission line is in a breeze environment, and the corresponding span ratio of the maximum rising span of the dancing amplitude to the shortened span of adjacent dancing interval time during the line dancing stage when the power transmission line is in a changeable environment.

[0018] As a preferred embodiment of the present invention, if the vibration impact data exceeds the speed value ratio threshold, or the dancing impact data exceeds the span value ratio threshold, a hidden danger abnormal signal is generated; if the vibration impact data does not exceed the speed value ratio threshold, and the dancing impact data does not exceed the span value ratio threshold, a hidden danger normal signal is generated and sent to the line monitoring platform.

[0019] As a preferred embodiment of the present invention, the line operation evaluation information includes the floating deviation value of the transmission speed corresponding to the adjacent moments of the power transmission flow during the transmission stage of the power transmission line, the duration of the power loss reduction control at any line part in the power transmission flow after the power loss is at the loss peak, and the continuous frequency increase span value of any transmission data floating in the transmission flow in any trajectory part when the power transmission flow repeats the trajectory during the transmission stage of the power transmission line.

[0020] As a preferred embodiment of the present invention, if the line operation evaluation coefficient during the transmission phase of the power transmission line exceeds the line operation evaluation coefficient threshold, an abnormal operation signal is generated; if the line operation evaluation coefficient during the transmission phase of the power transmission line does not exceed the line operation evaluation coefficient threshold, a normal operation signal is generated.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the present invention, the power transmission line is monitored online, and the current leakage risk of the line surface is inferred through the online monitoring of the power transmission line surface, so as to ensure the feasibility of the power transmission line through online monitoring, and the line operation status is monitored under the premise of ensuring operation, so as to ensure the timeliness of power transmission and the efficiency of power transmission, and improve the comprehensiveness of line monitoring;

[0023] Conduct real-time impact analysis on the transmission period of power transmission lines to avoid the impact of the transportation environment on the transmission efficiency of power transmission lines, which may cause deviations in online monitoring results and make it impossible to accurately monitor the feasibility of power transmission lines. At the same time, real-time impact monitoring can improve the timeliness of line monitoring and control, and conduct reasonable and timely early warning and control of environmental impacts, thereby reducing environmental impacts and improving line operation efficiency.

[0024] 2. In the present invention, the operation hidden danger analysis is carried out on the transmission process of the power transmission line. By analyzing the influence of breeze vibration and dancing monitoring in the real-time operation stage, it is inferred whether there are hidden dangers in the real-time operation of the line to avoid the failure to timely discover the operation hidden dangers of the line, resulting in long-term accumulation of damage to the line, and the strong concealment that cannot be detected in time. Through the hidden danger analysis, early warning can be carried out in time to avoid the impact of the quantitative change of hidden dangers to qualitative change;

[0025] Conduct real-time operation evaluation of power transmission lines, and infer the current power transmission line operation efficiency based on real-time evaluation of the power transmission flow in the power transmission lines, so as to facilitate real-time monitoring of the operation status of the power transmission lines and carry out early warning and rectification in case of abnormalities, reduce the impact of power transmission line failures, and ensure the power transmission efficiency and feasibility of the power transmission lines.

[0026] 3. In the present invention, the tower setting analysis is performed on the power transmission line, and the operating efficiency of the auxiliary devices of the current power transmission line is inferred to be qualified based on the real-time tower setting analysis, so as to avoid the unreasonable tower setting causing the operating efficiency of the power transmission line to be affected. At the same time, the tower position can be accurately set to reduce the long-span supply impact of the power transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0028] Figure 1 This is a principle block diagram of Embodiment 1 of the present invention;

[0029] Figure 2 This is a principle block diagram of the second embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] Embodiment 1

[0033] See also Figure 1 As shown, a transmission line operation status monitoring system based on power transmission management includes a line monitoring platform, wherein the line monitoring platform is communicatively connected to a line online monitoring unit, a real-time impact monitoring unit, an operation hidden danger monitoring unit, and a line operation evaluation unit;

[0034] The line monitoring platform generates a line online monitoring signal and sends the line online monitoring signal to the line online monitoring unit. After receiving the line online monitoring signal, the line online monitoring unit performs online monitoring on the power transmission line. Through the online monitoring of the power transmission line surface, it is inferred whether there is a leakage risk on the current line surface, so as to ensure the feasibility of the power transmission line through online monitoring, and monitor the line operation status under the premise of ensuring operation, so as to ensure the timeliness of power transmission and the efficiency of power transmission, and improve the comprehensiveness of line monitoring;

[0035] The operation time of the power transmission line is obtained, and the middle moment of the operation time and any moment at the beginning and end of the operation time are selected, and the selected moments are uniformly constructed as online monitoring moments; the transmission loss power fluctuation trend of the power transmission line corresponding to the adjacent online monitoring moments is obtained when the power transmission line is obtained. If the transmission loss power fluctuation trend shows a continuous increasing trend and the actual transmission loss power exceeds the set threshold, it is inferred that the current power transmission line online monitoring is abnormal, and an insulation abnormality signal is generated and sent to the line monitoring platform. After receiving the insulation abnormality signal, the line monitoring platform replaces the material of the power transmission line and controls the insulation performance;

[0036] If the transmission loss power fluctuation trend shows a reciprocating fluctuation trend, and the actual transmission loss power exceeds the set threshold, it is inferred that the current power transmission line online monitoring is abnormal, and a transmission abnormality signal is generated and sent to the line monitoring platform. After receiving the transmission abnormality signal, the line monitoring platform adjusts the power transmission task volume, such as reducing the task volume peak or speed peak, or reducing the transmission duration peak;

[0037] If the transmission loss power fluctuation trend is a reciprocating fluctuation trend, and the actual transmission loss power does not exceed the set threshold, the pollution information on the surface of the power transmission line corresponding to the online monitoring time is collected, wherein the pollution information is the pollution area on the line surface and the conductivity impact value of the pollutants, and the conductivity impact value of the pollutants is collected by using distilled water to clean the pollutants on the surface of the insulator, and then measuring the conductivity in the cleaning liquid, and obtaining it through comparison of the conductivity values;

[0038] If any data of the pollution information on the surface of the power transmission line exceeds the corresponding set threshold, the power transmission line is determined to be affected, a transmission risk signal is generated and sent to the line monitoring platform. After receiving the transmission risk signal, the line monitoring platform cleans the surface of the power transmission line;

[0039] If any data of the pollution information on the surface of the power transmission line does not exceed the corresponding set threshold, it is determined that the power transmission line has no impact, and an online monitoring normal signal is generated and sent to the line monitoring platform; at the same time, a real-time impact monitoring signal is generated and sent to the real-time impact monitoring unit;

[0040] After receiving the real-time impact monitoring signal, the real-time impact monitoring unit performs real-time impact analysis on the transmission period of the power transmission line when the online monitoring of the power transmission line is normal, so as to avoid the impact of the transportation environment causing the transmission efficiency of the power transmission line to decrease, so as to cause deviations in the online monitoring results and fail to accurately monitor the feasibility of the power transmission line. At the same time, the real-time impact monitoring can improve the timeliness of line monitoring and control, and conduct reasonable and timely early warning control of environmental impacts, thereby reducing environmental impacts and improving line operation efficiency.

[0041] The overlapping time of the period of increased line surface thickness change value and the period of increased transmission loss during the transmission of the power transmission line is obtained, where the line surface thickness value represents the thickness change of the line surface caused by weather reasons during line transmission, such as ice on the line surface, water on the line surface, or wear on the line surface; at the same time, the delay time of the adjacent time nodes corresponding to the time node of increased line surface thickness change peak value and the time node of increased transmission loss during the transmission of the power transmission line is obtained, and the overlapping time of the period of increased line surface thickness change value and the period of increased transmission loss during the transmission of the power transmission line, and the delay time of the adjacent time nodes corresponding to the time node of increased line surface thickness change peak value and the time node of increased transmission loss during the transmission of the power transmission line are marked as line change information and line impact information, respectively, and compared with the time period overlap time threshold and delay time threshold, respectively:

[0042] If the overlapping time of the period of increase in the line surface thickness change value and the period of increase in transmission loss during the transmission of the power transmission line exceeds the period overlapping time threshold, or the delay time of the adjacent time nodes corresponding to the time node of the line surface thickness change peak increase and the time node of the transmission loss increase during the transmission of the power transmission line does not exceed the delay time threshold, it is inferred that there is an impact on the real-time transmission environment of the power transmission line, and a real-time impact abnormality signal is generated and sent to the line monitoring platform. After receiving the real-time impact abnormality signal, the line monitoring platform performs environmental impact control on the current circuit transmission line and lowers the online monitoring standard to ensure that the power transmission line is qualified while the line is not repaired. After the environmental impact control is successful, the line is detected and repaired in the event of an abnormality, to avoid environmental abnormalities causing a decrease in line transmission efficiency and thus generating unnecessary maintenance costs for line maintenance;

[0043] If the overlapping time of the period of increase in the line surface thickness change value and the period of increase in transmission loss during the transmission of the power transmission line does not exceed the period overlapping time threshold, and the delay time of the adjacent time nodes corresponding to the time node of increase in the line surface thickness change peak value and the time node of increase in transmission loss during the transmission of the power transmission line exceeds the delay time threshold, it is inferred that there is no impact on the real-time transmission environment of the power transmission line, and a real-time impact normal signal is generated and sent to the line monitoring platform;

[0044] After receiving the real-time normal impact signal, the line monitoring platform generates an operation hidden danger monitoring signal and sends the operation hidden danger monitoring signal to the operation hidden danger monitoring unit. After receiving the operation hidden danger monitoring signal, the operation hidden danger monitoring unit analyzes the operation hidden danger of the power transmission line transmission process. Through the impact analysis of breeze vibration and dancing monitoring in the real-time operation stage, it is inferred whether there are hidden dangers in the real-time operation of the line to avoid the operation hidden dangers of the line not being discovered in time, resulting in long-term accumulation of damage to the line, and the strong concealment that cannot be detected in time. Through hidden danger analysis, early warning can be given in time to avoid the impact of the quantitative change of hidden dangers to the qualitative change;

[0045] The speed value ratio of the vibration frequency increase speed to the vibration amplitude decrease speed in the line vibration stage when the power transmission line is in a breeze environment is obtained, and the corresponding span value ratio of the maximum rising span of the dancing amplitude to the shortened span of the adjacent dancing interval time in the line dancing stage when the power transmission line is in a changeable environment is obtained. The speed value ratio of the vibration frequency increase speed to the vibration amplitude decrease speed in the line vibration stage when the power transmission line is in a breeze environment and the corresponding span value ratio of the maximum rising span of the dancing amplitude to the shortened span of the adjacent dancing interval time in the line dancing stage when the power transmission line is in a changeable environment are marked as vibration influence data and dancing influence data, respectively, and compared with the speed value ratio threshold and the span value ratio threshold, respectively:

[0046] If the speed value ratio of the vibration frequency increase speed to the vibration amplitude decrease speed during the line vibration stage when the power transmission line is in a breeze environment exceeds the speed value ratio threshold, or the maximum rising span of the dancing amplitude during the line dancing stage when the power transmission line is in a changeable environment and the shortening span of the adjacent dancing interval time exceed the span value ratio threshold, it is inferred that the operation hidden danger monitoring of the power transmission line is abnormal during operation, and a hidden danger abnormality signal is generated and sent to the line monitoring platform. After the line monitoring platform receives the hidden danger abnormality signal, it will add anti-vibration measures for the corresponding part of the power transmission line, such as adding measures on the basis of the original anti-vibration measures, increasing the number of anti-vibration hammers or adding damping wires, etc.;

[0047] If the speed value ratio of the vibration frequency increase speed to the vibration amplitude decrease speed in the line vibration stage when the power transmission line is in a breeze environment does not exceed the speed value ratio threshold, and the maximum rising span of the dancing amplitude in the line dancing stage when the power transmission line is in a changeable environment and the shortening span of the adjacent dancing interval time do not exceed the span value ratio threshold, it is inferred that the operation hidden danger monitoring of the power transmission line is normal during operation, and a hidden danger normal signal is generated and sent to the line monitoring platform;

[0048] At the same time, a line operation evaluation signal is generated and sent to the line operation evaluation unit. After receiving the line operation evaluation signal, the line operation evaluation unit performs a real-time operation evaluation on the power transmission line, and infers the current power transmission line operation efficiency based on the real-time evaluation of the power transmission flow in the power transmission line, so as to facilitate real-time monitoring of the operation status of the power transmission line and carry out early warning and rectification in the event of an abnormality, thereby reducing the impact of the fault of the power transmission line and ensuring the power transmission efficiency and feasibility of the power transmission line;

[0049] The electric quantity transmission trajectory of the electric power transmission line is set as the electric quantity transmission flow, and the floating deviation value of the transmission speed corresponding to the adjacent moments of the electric quantity transmission flow in the transmission stage of the electric power transmission line is obtained, and at the same time, the duration of the loss reduction control after the electric quantity loss at any line part in the electric quantity transmission flow is at the loss peak is obtained, and the floating deviation value of the transmission speed corresponding to the adjacent moments of the electric quantity transmission flow in the transmission stage of the electric power transmission line and the duration of the loss reduction control after the electric quantity loss at any line part in the electric quantity transmission flow is at the loss peak are marked as FDP and CSX respectively;

[0050] Obtain the value of the continuous frequency increase span of any transmission data of the transmission flow that appears in any trajectory part when the transmission flow of electric power repeats the trajectory transmission in the transmission stage of the power transmission line, and mark the value of the continuous frequency increase span of any transmission data of the transmission flow that appears in any trajectory part when the transmission flow of electric power repeats the trajectory transmission in the transmission stage of the power transmission line as ZJK, where the transmission data is represented by the speed, loss, temperature and other data of the transmission flow of electric power;

[0051] The above collected data are uniformly marked as line operation evaluation information, and substituted into the formula to obtain the line operation evaluation coefficient in the transmission stage of the power transmission line, where the formula is:

[0052] Where G is the line operation evaluation coefficient, fnm1, fnm2, and fnm3 are preset proportional coefficients, and e is a natural constant. α is an error correction factor with a value of 0.99;

[0053] Compare the line operation evaluation coefficient in the transmission stage of the power transmission line with the line operation evaluation coefficient threshold:

[0054] If the line operation evaluation coefficient during the transmission phase of the power transmission line exceeds the line operation evaluation coefficient threshold, it is inferred that the line operation evaluation during the transmission phase of the power transmission line is abnormal, an operation abnormality signal is generated and the operation abnormality signal is sent to the line monitoring platform. After receiving the operation abnormality signal, the line monitoring platform conducts operation rectification of the power transmission line and performs targeted maintenance on various parts of the line, specifically taking the line part where the transmission data fluctuates during the transmission process as the maintenance center;

[0055] If the line operation evaluation coefficient during the transmission phase of the power transmission line does not exceed the line operation evaluation coefficient threshold, it is inferred that the line operation evaluation during the transmission phase of the power transmission line is normal, and a normal operation signal is generated and sent to the line monitoring platform;

[0056] Embodiment 2

[0057] In the previous embodiment, the operation status of the power transmission line is monitored, and this embodiment performs setting analysis on the auxiliary device of the power transmission line based on the previous embodiment. Figure 2 As shown, a tower setting analysis unit is provided in the operation status monitoring system;

[0058] After the line completes online monitoring, a tower setting analysis signal is generated and sent to the tower setting analysis unit. After receiving the tower setting analysis signal, the tower setting analysis unit performs a tower setting analysis on the power transmission line. Based on the real-time tower setting analysis, it is inferred whether the operating efficiency of the auxiliary device of the current power transmission line is qualified, so as to avoid the unreasonable tower setting causing the operating efficiency of the power transmission line to be affected. At the same time, the tower position can be accurately set to reduce the long-span supply impact of the power transmission line.

[0059] The floating frequency of the constant deviation value of the terrain height corresponding to any adjacent tower position when the power transmission line transmits electricity by setting the tower position in real time is obtained, and the real-time tension value ratio of the line tension corresponding to the current adjacent tower position and the line tension at the corresponding position when the power transmission line is transported is obtained, and the floating frequency of the constant deviation value of the terrain height corresponding to any adjacent tower position when the power transmission line transmits electricity by setting the tower position in real time and the real-time tension value ratio of the line tension corresponding to the current adjacent tower position and the line tension at the corresponding position when the power transmission line is transported are compared with the numerical floating frequency threshold and the tension value ratio threshold respectively:

[0060] If the floating frequency of the constant deviation value of the terrain height corresponding to any adjacent tower position exceeds the numerical floating frequency threshold when the power transmission line transmits electricity by setting the tower position in real time, or the real-time tension value ratio of the line tension borne by the current adjacent tower position to the line tension borne by the corresponding position during the transportation of the power transmission line does not exceed the tension value ratio threshold, it is inferred that the setting of the tower corresponding to the power transmission line is unreasonable, and a tower re-planning signal is generated and sent to the line monitoring platform. After receiving the tower re-planning signal, the line monitoring platform re-plans the tower position of the power transmission line;

[0061] If the floating frequency of the constant deviation value of the terrain height corresponding to any adjacent tower position does not exceed the numerical floating frequency threshold when the power transmission line transmits electricity with the real-time set tower position, and the real-time tension value ratio of the line tension borne by the current adjacent tower position and the line tension borne by the corresponding position during the transportation of the power transmission line exceeds the tension value ratio threshold, it is inferred that the setting of the corresponding tower of the power transmission line is reasonable, and a reasonable tower position signal is generated and sent to the line monitoring platform;

[0062] The above formulas are obtained by collecting a large amount of data and performing software simulation, and a formula close to the actual value is selected. The coefficients in the formula are set by technicians in this field according to actual conditions;

[0063] When the present invention is in use, the line online monitoring unit obtains the operating time period of the power transmission line and selects the middle moment of the operating time period and any moment at the beginning and end of the operating time period, and uniformly constructs the selected moments as online monitoring moments; through online collection and analysis of line data, it is inferred whether the online monitoring is qualified, and after it is qualified, the real-time impact monitoring unit performs real-time impact analysis on the transmission time period of the power transmission line, obtains line change information and line impact information, and infers whether the real-time impact analysis is normal based on information comparison; after the impact analysis is normal, the operation hidden danger monitoring unit obtains the vibration impact data and the dancing impact data of the power transmission line, and infers whether there are operation hidden dangers in the operation of the power transmission line based on data analysis, and after the operation hidden danger monitoring is qualified, the line operation evaluation unit collects the line operation evaluation information, obtains the line operation evaluation coefficient through calculation, and infers whether the line transmission operation status is qualified based on the coefficient comparison, and performs targeted line regulation through the line monitoring platform according to the signal generated by the data analysis.

[0064] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A power transmission line operation status monitoring system based on power transmission management, characterized in that: It includes a line monitoring platform, which is communicatively connected with a line online monitoring unit, a real-time impact monitoring unit, an operation hidden danger monitoring unit and a line operation evaluation unit; The line online monitoring unit obtains the operation time period of the power transmission line and selects the middle moment of the operation time period and any moment at the beginning and end of the operation time period, and uniformly constructs the selected moments as online monitoring moments; infers whether the online monitoring is qualified through online line data collection and analysis, and if qualified, the real-time impact monitoring unit performs real-time impact analysis on the transmission time period of the power transmission line, obtains line change information and line impact information, and infers whether the real-time impact analysis is normal based on information comparison; After the impact analysis is normal, the operation hidden danger monitoring unit obtains the vibration impact data and dancing impact data of the power transmission line, and infers whether there are operation hidden dangers in the operation of the power transmission line based on the data analysis. After the operation hidden danger monitoring is qualified, the line operation evaluation unit collects the line operation evaluation information, obtains the line operation evaluation coefficient through calculation, and infers whether the line transmission operation status is qualified based on the coefficient comparison, and performs targeted line regulation through the line monitoring platform according to the signal generated by the data analysis.

2. The power transmission line operation status monitoring system based on power transmission management according to claim 1 is characterized in that: The operation process of the line online monitoring unit is as follows: When the transmission loss power fluctuation trend of the power transmission line corresponding to the adjacent online monitoring time is obtained, if the transmission loss power fluctuation trend shows a continuous increasing trend and the actual transmission loss power exceeds the set threshold, an insulation abnormality signal is generated; if the transmission loss power fluctuation trend shows a reciprocating floating trend and the actual transmission loss power exceeds the set threshold, a transmission abnormality signal is generated; If the transmission loss power fluctuation trend is a reciprocating fluctuation trend and the actual transmission loss power does not exceed the set threshold, the pollution information on the surface of the power transmission line corresponding to the online monitoring time is collected, wherein the pollution information includes the pollution area on the line surface and the conductivity impact value of the pollutants.

3. The power transmission line operation status monitoring system based on power transmission management according to claim 2 is characterized in that: If any data of the pollution information on the surface of the power transmission line exceeds the corresponding set threshold, a transmission risk signal is generated; if any data of the pollution information on the surface of the power transmission line does not exceed the corresponding set threshold, an online monitoring normal signal is generated.

4. The power transmission line operation status monitoring system based on power transmission management according to claim 1 is characterized in that: The line change information and line impact information are respectively the overlapping time length of the period when the line surface thickness change value increases and the period when the transmission loss increases during the transmission process of the power transmission line, and the delay time length of the adjacent time nodes corresponding to the time node when the line surface thickness change peak value increases and the time node when the transmission loss increases during the transmission process of the power transmission line.

5. The power transmission line operation status monitoring system based on power transmission management according to claim 4 is characterized in that: If the line change information exceeds the time period overlap threshold, or the line impact information does not exceed the delay threshold, a real-time impact abnormal signal is generated; if the line change information does not exceed the time period overlap threshold, and the line impact information exceeds the delay threshold, a real-time impact normal signal is generated and sent to the line monitoring platform.

6. The power transmission line operation status monitoring system based on power transmission management according to claim 1 is characterized in that: The vibration impact data and the dancing impact data are respectively the speed ratio of the vibration frequency increase rate to the vibration amplitude decrease rate during the line vibration stage when the power transmission line is in a breeze environment, and the corresponding span ratio of the maximum rising span of the dancing amplitude to the shortening span of adjacent dancing intervals during the line dancing stage when the power transmission line is in a changeable environment.

7. The power transmission line operation status monitoring system based on power transmission management according to claim 6 is characterized in that: If the vibration impact data exceeds the speed value ratio threshold, or the dancing impact data exceeds the span value ratio threshold, a hidden danger abnormal signal is generated; if the vibration impact data does not exceed the speed value ratio threshold, and the dancing impact data does not exceed the span value ratio threshold, a hidden danger normal signal is generated and sent to the line monitoring platform.

8. The power transmission line operation status monitoring system based on power transmission management according to claim 1, characterized in that: The line operation evaluation information includes the floating deviation value of the transmission speed corresponding to the adjacent moments of the power transmission flow during the transmission stage of the power transmission line, the duration of the power loss reduction control at any part of the line after the power loss is at the loss peak, and the continuous frequency increase span value of any transmission data fluctuation of the transmission flow in any part of the trajectory when the power transmission flow repeats the trajectory during the transmission stage of the power transmission line.

9. The power transmission line operation status monitoring system based on power transmission management according to claim 8, characterized in that: If the line operation evaluation coefficient during the transmission stage of the power transmission line exceeds the line operation evaluation coefficient threshold, an abnormal operation signal is generated; if the line operation evaluation coefficient during the transmission stage of the power transmission line does not exceed the line operation evaluation coefficient threshold, a normal operation signal is generated.

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