An electric power supply monitoring and early warning system based on information feedback analysis

By introducing information feedback analysis technology into the power supply system, the problems of inaccurate data acquisition and insufficient fault monitoring in the power supply monitoring and early warning system are solved, and the stability of the power network and monitoring and early warning efficiency are improved.

CN118539613BActive Publication Date: 2024-12-20SHANXI PROVINCE JINJUMEIDIANHUA INC CORP
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Patent Information

Application Number
CN202410712450.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-04
Publication Date
2024-12-20
Estimated Expiration
2044-06-04

AI Technical Summary

Technical Problem

In the prior art, the power supply system cannot conduct effective monitoring and early warnings from the power equipment end and the power transmission end at the same time, resulting in inaccurate collection of power data and insufficient monitoring of power supply faults, and the stability of power transmission cannot be guaranteed.

Method used

Design a power supply monitoring and early warning system based on information feedback analysis, including data storage unit, error analysis unit, power supply fault monitoring unit, tower planning evaluation unit and power supply coordination analysis unit, through screening and error analysis of power network data , fault monitoring, tower planning evaluation and power supply coordination analysis, and generate corresponding signals for early warning.

Benefits of technology

It improves the accuracy of power data and the credibility of power supply monitoring, avoids the impact of power supply failures, and ensures the stability of the power network and monitoring and early warning efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an electric power supply monitoring and early warning system based on information feedback analysis, relates to the technical field of electric power supply monitoring and early warning, and solves the technical problem in the prior art that power supply monitoring and early warning cannot be performed from two aspects, namely, a power equipment end and a power transmission end, during power supply. Specifically, a data storage unit filters data generated by power grid operation, performs error analysis on the power network through an error analysis unit when real-time data collection is stored, a power supply fault monitoring unit performs power supply fault monitoring according to collected electrical parameters, generates a high power supply fault signal or a low power supply fault signal through power supply fault monitoring, and uploads it to the power equipment end; a tower planning and evaluation unit performs planning and evaluation on power transmission towers of the power network, and after completing the planning and evaluation, analyzes the power supply coordination of the power transmission end and the power equipment end in the power network through a power supply coordination analysis unit.
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Description

Technical Field

[0001] The present invention relates to the technical field of electric power supply monitoring and early warning, and in particular to an electric power supply monitoring and early warning system based on information feedback analysis. Background Art

[0002] The electric traction power supply system is a power network that converts electricity from a high-voltage power system or a dedicated power supply to supply equipment; it is divided into two categories according to the current system: AC and DC.

[0003] However, in the prior art, it is not possible to perform power supply monitoring and early warning from both the power equipment end and the power transmission end during power supply. The reliability of power data collection and the credibility of the data cannot be guaranteed at the power equipment end, and power supply failures cannot be monitored. In addition, it is impossible to perform power transmission tower planning and evaluation at the power transmission end, so that the stability of power transmission cannot be guaranteed.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned problems and to propose an electric power supply monitoring and early warning system based on information feedback analysis.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An electric power supply monitoring and early warning system based on information feedback analysis includes an electric power network platform, wherein an electric power equipment end and an electric power transmission end are arranged in the electric power network platform, wherein a data preservation unit, an error analysis unit and a power supply fault monitoring unit are arranged in the electric power equipment end, and the power transmission end is communicatively connected to an electric tower planning and evaluation unit and a power supply coordination analysis unit;

[0008] The data storage unit screens the data generated by the operation of the power grid, divides the electrical parameters into instantaneous parameters and continuous parameters through screening, and when uploading the data to the power equipment end, uses the continuous parameters as storage data and the instantaneous parameters as storage data before screening. When real-time storage data collection is performed, the error analysis unit performs error analysis on the power network. The power supply fault monitoring unit performs power supply fault monitoring according to the collected electrical parameters, generates a high power supply fault signal or a low power supply fault signal through power supply fault monitoring, and uploads it to the power equipment end;

[0009] The power tower planning and evaluation unit conducts planning and evaluation on the power transmission towers of the power network. After completing the planning and evaluation, the power supply coordination analysis unit analyzes the power supply coordination between the power transmission end and the power equipment end in the power network.

[0010] As a preferred embodiment of the present invention, the operation process of the data authenticity unit is as follows:

[0011] Obtain the duration deviation value corresponding to the real-time peak electrical parameter of the power equipment and the instantaneous electrical parameter during the operation of the power network, as well as the cumulative occurrence frequency of the real-time peak value corresponding to the real-time peak electrical parameter of the power equipment, and compare them with the duration deviation value threshold and the cumulative occurrence frequency threshold respectively:

[0012] If the duration deviation value corresponding to the real-time peak electrical parameters and instantaneous electrical parameters of power equipment during the operation of the power network exceeds the duration deviation value threshold, and the cumulative occurrence frequency of the real-time peak value corresponding to the real-time peak electrical parameters of the power equipment does not exceed the cumulative occurrence frequency threshold, then the value of the current electrical parameter is determined to be an instantaneous parameter; conversely, if the duration deviation value corresponding to the real-time peak electrical parameters and instantaneous electrical parameters of power equipment during the operation of the power network does not exceed the duration deviation value threshold, or the cumulative occurrence frequency of the real-time peak value corresponding to the real-time peak electrical parameters of the power equipment exceeds the cumulative occurrence frequency threshold, then the value of the current electrical parameter is determined to be a continuous parameter.

[0013] As a preferred embodiment of the present invention, the operation process of the error analysis unit is as follows:

[0014] Obtain the duration deviation value of the floating period and storage period of the corresponding type of parameter data in the electric parameter collection period during the operation of the power network, and the maximum floating amount of the electric parameters at adjacent moments when the environmental parameters float during the operation of the power network; obtain the overlapping period duration of the power equipment failure period and the power parameter collection during the operation of the power network; obtain the error analysis coefficient during the operation of the power network through analysis; compare the error analysis coefficient during the operation of the power network with the error analysis coefficient threshold:

[0015] If the error analysis coefficient exceeds the error analysis coefficient threshold during the operation of the power network, the error analysis during the operation of the power network is judged to be abnormal, a high error signal is generated and uploaded to the power equipment end, and the collection cycle is adjusted during data collection at the power equipment end during the operation of the power network platform; if the error analysis coefficient does not exceed the error analysis coefficient threshold during the operation of the power network, the error analysis during the operation of the power network is judged to be normal, a low error signal is generated and uploaded to the power equipment end.

[0016] As a preferred embodiment of the present invention, the operation process of the power supply fault monitoring unit is as follows:

[0017] The maximum deviation value of the failure rate of power equipment during the power supply period and the non-power supply period during the operation of the power network, as well as the maximum deviation floating amount of the supply and demand corresponding to the power equipment supply time during the power supply period during the operation of the power network are obtained, and the maximum deviation value of the failure rate of power equipment during the power supply period and the non-power supply period during the operation of the power network, as well as the maximum deviation floating amount of the supply and demand corresponding to the power equipment supply time during the power supply period during the operation of the power network are compared with the maximum deviation value threshold of the failure rate and the maximum deviation floating amount threshold respectively.

[0018] As a preferred embodiment of the present invention, if the maximum deviation value of the power equipment failure rate during the power supply period and the non-power supply period during the operation of the power network exceeds the maximum deviation value threshold of the failure rate, or the maximum deviation floating amount of the supply amount and the demand amount corresponding to the power equipment supply time during the power supply period during the operation of the power network exceeds the maximum deviation floating amount threshold, then it is determined that the power supply fault monitoring of the power network is abnormal, a power supply high fault signal is generated and the power supply high fault signal is uploaded to the power equipment end;

[0019] If the maximum deviation value of the power equipment failure rate during the power supply period and the non-power supply period during the operation of the power network does not exceed the maximum deviation value threshold of the failure rate, and the maximum deviation fluctuation amount of the supply and demand amount corresponding to the power equipment supply time during the power supply period during the operation of the power network does not exceed the maximum deviation fluctuation amount threshold, then it is determined that the power supply fault monitoring of the power network is normal, and a low power supply fault signal is generated and uploaded to the power equipment end.

[0020] As a preferred embodiment of the present invention, the operation process of the tower planning and evaluation unit is as follows:

[0021] The deviation value between the setting height of the power transmission tower at the planned location of the power transmission tower in the power network coverage area and the setting height of the power transmission tower at the real-time monitoring moment is obtained, and the growth rate of the numerical floating of the setting height at the planned location of the power transmission tower in the power network coverage area is obtained, and the deviation value of the setting height of the power transmission tower at the planned location of the power transmission tower in the power network coverage area and the setting height of the power transmission tower at the real-time monitoring moment and the growth rate of the numerical floating of the setting height at the planned location of the power transmission tower in the power network coverage area are compared with the setting height deviation value threshold and the numerical floating growth rate threshold respectively.

[0022] As a preferred embodiment of the present invention, if the growth rate of the numerical fluctuation of the setting height at the planned position of the power transmission tower in the power network coverage area exceeds the setting height deviation value threshold, or the growth rate of the numerical fluctuation of the setting height at the planned position of the power transmission tower in the power network coverage area exceeds the numerical fluctuation growth rate threshold, then it is determined that the planned position of the power transmission tower in the power network coverage area is abnormal, and a geological subsidence risk signal is generated and sent to the power transmission end, the power transmission end uploads the geological subsidence risk signal to the power network platform, and the power network platform re-plans the position of the power transmission tower in the coverage area;

[0023] If the growth rate of the numerical floating of the set height at the planned location of the power transmission tower in the power network coverage area does not exceed the set height deviation value threshold, and the growth rate of the numerical floating of the set height at the planned location of the power transmission tower in the power network coverage area does not exceed the numerical floating growth rate threshold, then it is determined that the planned location of the power transmission tower in the power network coverage area is normal, and a low planning risk signal is generated and sent to the power transmission end.

[0024] As a preferred embodiment of the present invention, the operation process of the power supply coordination analysis unit is as follows:

[0025] The interval between the instruction processing period at the power equipment end and the transmission execution period at the power transmission end during the power network power supply period, as well as the deviation between the shortest interval between the power equipment end transportation instruction modification and the shortest time taken to modify the transportation instruction at the power transmission end during the power network power supply period are obtained, and compared with the time interval threshold and the time deviation threshold respectively:

[0026] If the interval between the instruction processing period at the power equipment end and the transmission execution period at the power transmission end during the power supply period of the power network exceeds the interval time threshold, or the deviation between the shortest interval time for modifying the transportation instruction at the power equipment end and the shortest time for modifying the transportation instruction at the power transmission end during the power supply period of the power network exceeds the time deviation threshold, a coordinated power supply inefficiency signal is generated and uploaded to the power network platform;

[0027] If the interval between the command processing period at the power equipment end and the transmission execution period at the power transmission end during the power supply period of the power network does not exceed the period interval time threshold, and the time deviation between the shortest interval time for modifying the transport command at the power equipment end and the shortest time for modifying the transport command at the power transmission end during the power supply period of the power network does not exceed the time deviation threshold, a coordinated power supply high-efficiency signal is generated and uploaded to the power network platform.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. In the present invention, the data authenticity unit in the power equipment end screens the data generated by the power grid operation to improve the accuracy of the power grid data, and judges the authenticity of the power grid data through online monitoring to avoid the occasional equipment of the power equipment, which causes deviations in the power supply warning and leads to low efficiency of power supply monitoring and early warning; when storing data collection in real time, the error analysis unit performs error analysis on the power network to determine whether the errors in the collection of electrical parameters during the operation of the power network are reasonable, to avoid large deviations in the collection of electrical parameters causing reduced credibility of the electrical parameters, resulting in low efficiency of power supply monitoring and early warning; the power supply fault monitoring unit performs power supply fault monitoring according to the collected electrical parameters to determine whether there is a fault in the actual power supply of the power network, to avoid the power supply efficiency of the power network being reduced and the inability to issue a timely warning, resulting in the inability to minimize the impact of the power supply fault, causing unnecessary wear on the power equipment and the inability to accurately control the power supply efficiency.

[0030] 2. In the present invention, the power tower planning and evaluation unit performs planning and evaluation on the power transmission towers of the power network, determines whether there are any abnormalities in the current planned positions of the power transmission towers, and performs reliability analysis on the power transmission towers planned in real time, so as to avoid the power transmission efficiency being affected by the abnormalities in the planning of the power transmission towers, thereby reducing the monitoring and early warning efficiency of power transmission; the power supply coordination analysis unit analyzes the power supply coordination between the power transmission end and the power equipment end in the power network, determines whether the power supply coordination efficiency in the power network meets the actual needs, and improves the monitoring and early warning efficiency of the power network. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0032] Figure 1 It is a principle block diagram of the present invention;

[0033] Figure 2 It is a principle block diagram of the power equipment end in the present invention;

[0034] Figure 3 It is a principle block diagram of the power transmission end in the present invention. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] See also Figure 1-3 As shown, an electric power supply monitoring and early warning system based on information feedback analysis includes an electric power network platform, in which an electric power equipment end and an electric power transmission end are arranged, wherein the electric power equipment end is provided with a data preservation unit, an error analysis unit and a power supply fault monitoring unit, and the power transmission end is communicatively connected with an electric tower planning and evaluation unit and a power supply coordination analysis unit;

[0038] During the operation of the power network platform, the data authenticity unit in the power equipment side screens the data generated by the power grid operation to improve the accuracy of the power grid data. The authenticity of the power grid data is judged through online monitoring to avoid occasional power equipment errors, which may cause deviations in power supply warnings and lead to low efficiency in power supply monitoring and warning.

[0039] Obtain the duration deviation value corresponding to the instantaneous electrical parameters of the real-time peak electrical parameters of the power equipment during the operation of the power network, and the cumulative occurrence frequency of the real-time peak electrical parameters of the power equipment corresponding to the real-time peak value, and compare the duration deviation value corresponding to the instantaneous electrical parameters of the real-time peak electrical parameters of the power equipment during the operation of the power network, and the cumulative occurrence frequency of the real-time peak electrical parameters of the power equipment corresponding to the real-time peak value with the duration deviation value threshold and the cumulative occurrence frequency threshold, respectively: wherein the electrical parameters are represented by parameters such as voltage and current;

[0040] If the duration deviation value between the real-time peak electrical parameter of the power equipment and the instantaneous electrical parameter during the operation of the power network exceeds the duration deviation value threshold, and the cumulative occurrence frequency of the real-time peak value of the real-time peak electrical parameter of the power equipment does not exceed the cumulative occurrence frequency threshold, then the value of the current electrical parameter is determined to be an instantaneous parameter; conversely, if the duration deviation value between the real-time peak electrical parameter of the power equipment and the instantaneous electrical parameter during the operation of the power network does not exceed the duration deviation value threshold, or the cumulative occurrence frequency of the real-time peak value of the real-time peak electrical parameter of the power equipment exceeds the cumulative occurrence frequency threshold, then the value of the current electrical parameter is determined to be a continuous parameter;

[0041] When the data storage unit uploads data to the power equipment end, the continuous parameters are used as storage data and the instantaneous parameters are screened before being used as storage data;

[0042] When real-time storage data collection is in progress, the error analysis unit performs error analysis on the power network to determine whether the error in the electric parameter collection during the operation of the power network is reasonable, so as to avoid a large deviation in the electric parameter collection causing a decrease in the credibility of the electric parameter, resulting in low efficiency in power supply monitoring and early warning of the power network;

[0043] Obtain the time deviation value between the floating period and the storage period of the corresponding type of parameter data in the electric parameter collection period during the operation of the power network, and the maximum floating amount of the electric parameter at adjacent moments when the environmental parameters float during the operation of the power network, and mark the time deviation value between the floating period and the storage period of the corresponding type of parameter data in the electric parameter collection period during the operation of the power network, and the maximum floating amount of the electric parameter at adjacent moments when the environmental parameters float during the operation of the power network as SCP and FDL respectively; obtain the overlapping period duration of the electric equipment fault period and the electric parameter collection during the operation of the power network, and mark the overlapping period duration of the electric equipment fault period and the electric parameter collection during the operation of the power network as ZQS;

[0044] By formula Obtain the error analysis coefficient G during the operation of the power network, where fe1, fe2 and fe3 are all preset proportional coefficients, and fe1>fe2>fe3>1, and e is a natural constant;

[0045] Compare the error analysis coefficient G during the operation of the power network with the error analysis coefficient threshold:

[0046] If the error analysis coefficient G during the operation of the power network exceeds the error analysis coefficient threshold, the error analysis during the operation of the power network is determined to be abnormal, a high error signal is generated and uploaded to the power equipment end, and the data collection cycle of the power equipment end is adjusted during the operation of the power network platform;

[0047] If the error analysis coefficient G during the operation of the power network does not exceed the error analysis coefficient threshold, it is determined that the error analysis during the operation of the power network is normal, a low error signal is generated and the low error signal is uploaded to the power equipment end;

[0048] The power supply fault monitoring unit monitors the power supply fault according to the collected electrical parameters, and determines whether there is a fault in the actual power supply of the power network, so as to avoid the power supply efficiency of the power network being reduced and the failure of timely warning, which causes the impact of the power supply fault to be unable to be minimized, causes unnecessary wear and tear on the power equipment, and fails to accurately control the power supply efficiency;

[0049] The maximum deviation value of the power equipment failure rate during the power supply period and the non-power supply period during the operation of the power network and the maximum deviation floating amount of the supply and demand corresponding to the power equipment supply time during the power supply period during the operation of the power network are obtained, and the maximum deviation value of the power equipment failure rate during the power supply period and the non-power supply period during the operation of the power network and the maximum deviation floating amount of the supply and demand corresponding to the power equipment supply time during the power supply period during the operation of the power network are compared with the maximum deviation value threshold of the failure rate and the maximum deviation floating amount threshold respectively:

[0050] If the maximum deviation value of the power equipment failure rate during the power supply period and the non-power supply period during the operation of the power network exceeds the maximum deviation value threshold of the failure rate, or the maximum deviation floating amount of the power equipment supply time corresponding to the supply amount and the demand amount during the power supply period during the operation of the power network exceeds the maximum deviation floating amount threshold, then the power network power supply fault monitoring is determined to be abnormal, a power supply high fault signal is generated and uploaded to the power equipment end, the power equipment end performs power supply operation and maintenance and uploads the operation and maintenance results to the power network platform, and the power network platform makes power supply decisions based on the uploaded operation and maintenance results;

[0051] If the maximum deviation value of the power equipment failure rate during the power supply period and the non-power supply period during the operation of the power network does not exceed the maximum deviation value threshold of the failure rate, and the maximum deviation floating amount of the supply and demand corresponding to the power equipment supply time during the power supply period during the operation of the power network does not exceed the maximum deviation floating amount threshold, then it is determined that the power supply fault monitoring of the power network is normal, a low power supply fault signal is generated and the low power supply fault signal is uploaded to the power equipment end;

[0052] When the power network makes a power supply decision based on the operation and maintenance results, the power transmission end generates a tower planning evaluation signal and sends the tower planning evaluation signal to the tower planning evaluation unit. After receiving the tower planning evaluation signal, the tower planning evaluation unit performs planning evaluation on the power transmission towers of the power network, determines whether there is an abnormality in the current planned position of the power transmission tower, and performs reliability analysis on the real-time planned power transmission tower to avoid affecting the power transmission efficiency due to abnormal planning of the power transmission tower, thereby reducing the monitoring and early warning efficiency of power transmission;

[0053] The deviation value between the setting height of the power transmission tower at the planned location of the power transmission tower in the power network coverage area and the setting height of the power transmission tower at the real-time monitoring time is obtained, and the growth rate of the setting height value floating at the planned location of the power transmission tower in the power network coverage area is obtained, and the deviation value between the setting height of the power transmission tower at the planned location of the power transmission tower in the power network coverage area and the setting height of the power transmission tower at the real-time monitoring time and the growth rate of the setting height value floating at the planned location of the power transmission tower in the power network coverage area are compared with the setting height deviation value threshold and the value floating growth rate threshold respectively:

[0054] If the growth rate of the numerical fluctuation of the set height at the planned location of the power transmission tower in the power network coverage area exceeds the set height deviation value threshold, or the growth rate of the numerical fluctuation of the set height at the planned location of the power transmission tower in the power network coverage area exceeds the numerical fluctuation growth rate threshold, then it is determined that the planned location of the power transmission tower in the power network coverage area is abnormal, and a geological subsidence risk signal is generated and sent to the power transmission end, and the power transmission end uploads the geological subsidence risk signal to the power network platform, and the power network platform re-plans the location of the power transmission tower in the coverage area;

[0055] If the growth rate of the numerical fluctuation of the set height at the planned location of the power transmission tower in the power network coverage area does not exceed the set height deviation value threshold, and the growth rate of the numerical fluctuation of the set height at the planned location of the power transmission tower in the power network coverage area does not exceed the numerical fluctuation growth rate threshold, it is determined that the planned location of the power transmission tower in the power network coverage area is normal, and a planning low risk signal is generated and sent to the power transmission end;

[0056] The power transmission end generates a power supply coordination analysis signal and sends the power supply coordination analysis signal to the power supply coordination analysis unit. After receiving the power supply coordination analysis signal, the power supply coordination analysis unit analyzes the power supply coordination between the power transmission end and the power equipment end in the power network to determine whether the power supply coordination efficiency in the power network meets the actual demand, thereby improving the monitoring and early warning efficiency of the power network;

[0057] The interval between the instruction processing period at the power equipment end and the transmission execution period at the power transmission end within the power network power supply period, as well as the time deviation between the shortest interval between the power equipment end and the power transmission end within the power network power supply period and the shortest time required for the power transmission end to change the transportation instruction are obtained, and the interval between the instruction processing period at the power equipment end and the transmission execution period at the power transmission end within the power network power supply period, as well as the time deviation between the shortest interval between the power equipment end and the power transmission end within the power network power supply period and the shortest time required for the power transmission end to change the transportation instruction are compared with the time interval time threshold and the time deviation threshold respectively:

[0058] If the interval between the instruction processing period at the power equipment end and the transmission execution period at the power transmission end during the power supply period of the power network exceeds the interval time threshold, or the deviation between the shortest interval time for modifying the transportation instruction at the power equipment end and the shortest time for modifying the transportation instruction at the power transmission end during the power supply period of the power network exceeds the time deviation threshold, then it is determined that the coordinated power supply analysis in the power network is abnormal, and a coordinated power supply inefficiency signal is generated and uploaded to the power network platform. After receiving the signal, the power network platform performs data transmission rectification on the power network.

[0059] If the interval between the instruction processing period at the power equipment end and the transmission execution period at the power transmission end during the power network power supply period does not exceed the interval time threshold, and the time deviation between the shortest interval time for modifying the transportation instruction at the power equipment end and the shortest time for modifying the transportation instruction at the power transmission end during the power network power supply period does not exceed the time deviation threshold, then it is determined that the coordinated power supply analysis in the power network is normal, and a coordinated power supply high-efficiency signal is generated and uploaded to the power network platform;

[0060] 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;

[0061] When the present invention is in use, the data authenticity unit screens the data generated by the operation of the power grid, divides the electrical parameters into instantaneous parameters and continuous parameters through screening, and when uploading the data to the power equipment end, uses the continuous parameters as storage data and the instantaneous parameters as storage data before screening, when real-time storage data collection, the error analysis unit performs error analysis on the power network, the power supply fault monitoring unit performs power supply fault monitoring according to the collected electrical parameters, generates a high power supply fault signal or a low power supply fault signal through power supply fault monitoring, and uploads it to the power equipment end; the tower planning and evaluation unit performs planning and evaluation on the power transmission towers of the power network, and after completing the planning and evaluation, the power supply coordination of the power transmission end and the power equipment end in the power network is analyzed through the power supply coordination analysis unit.

[0062] 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. An electric power supply monitoring and early warning system based on information feedback analysis, characterized in that: It includes a power network platform, in which a power equipment end and a power transmission end are arranged, wherein a data preservation unit, an error analysis unit and a power supply fault monitoring unit are arranged in the power equipment end, and the power transmission end is communicatively connected with a tower planning and evaluation unit and a power supply coordination analysis unit; The data storage unit screens the data generated by the operation of the power grid, divides the electrical parameters into instantaneous parameters and continuous parameters through screening, and when uploading the data to the power equipment end, uses the continuous parameters as storage data and the instantaneous parameters as storage data before screening. When real-time storage data collection is performed, the error analysis unit performs error analysis on the power network. The power supply fault monitoring unit performs power supply fault monitoring according to the collected electrical parameters, generates a high power supply fault signal or a low power supply fault signal through power supply fault monitoring, and uploads it to the power equipment end; The power tower planning and evaluation unit performs planning and evaluation on the power transmission towers of the power network. After completing the planning and evaluation, the power supply coordination analysis unit analyzes the power supply coordination between the power transmission end and the power equipment end in the power network. The operation process of the data preservation unit is as follows: Obtain the duration deviation value corresponding to the real-time peak electrical parameter of the power equipment and the instantaneous electrical parameter during the operation of the power network, as well as the cumulative occurrence frequency of the real-time peak value corresponding to the real-time peak electrical parameter of the power equipment, and compare them with the duration deviation value threshold and the cumulative occurrence frequency threshold respectively: If the duration deviation value corresponding to the real-time peak electrical parameters and instantaneous electrical parameters of power equipment during the operation of the power network exceeds the duration deviation value threshold, and the cumulative occurrence frequency of the real-time peak value corresponding to the real-time peak electrical parameters of the power equipment does not exceed the cumulative occurrence frequency threshold, then the value of the current electrical parameter is determined to be an instantaneous parameter; conversely, if the duration deviation value corresponding to the real-time peak electrical parameters and instantaneous electrical parameters of power equipment during the operation of the power network does not exceed the duration deviation value threshold, or the cumulative occurrence frequency of the real-time peak value corresponding to the real-time peak electrical parameters of the power equipment exceeds the cumulative occurrence frequency threshold, then the value of the current electrical parameter is determined to be a continuous parameter.

2. According to claim 1, a power supply monitoring and early warning system based on information feedback analysis is characterized in that: The operation process of the error analysis unit is as follows: Obtain the time deviation value of the floating period and storage period of the corresponding type of parameter data in the electric parameter collection period during the operation of the power network, and the maximum floating amount of the electric parameter at adjacent moments when the environmental parameter floats during the operation of the power network; Obtain the overlapping period length of the power equipment failure cycle and the power parameter collection during the operation of the power network; obtain the error analysis coefficient during the operation of the power network through analysis; compare the error analysis coefficient during the operation of the power network with the error analysis coefficient threshold: If the error analysis coefficient exceeds the error analysis coefficient threshold during the operation of the power network, the error analysis during the operation of the power network is judged to be abnormal, a high error signal is generated and uploaded to the power equipment end, and the collection cycle is adjusted during data collection at the power equipment end during the operation of the power network platform; if the error analysis coefficient does not exceed the error analysis coefficient threshold during the operation of the power network, the error analysis during the operation of the power network is judged to be normal, a low error signal is generated and uploaded to the power equipment end.

3. The electric power supply monitoring and early warning system based on information feedback analysis according to claim 1 is characterized in that: The operation process of the power supply fault monitoring unit is as follows: The maximum deviation value of the failure rate of power equipment during the power supply period and the non-power supply period during the operation of the power network, as well as the maximum deviation floating amount of the supply and demand corresponding to the power equipment supply time during the power supply period during the operation of the power network are obtained, and the maximum deviation value of the failure rate of power equipment during the power supply period and the non-power supply period during the operation of the power network, as well as the maximum deviation floating amount of the supply and demand corresponding to the power equipment supply time during the power supply period during the operation of the power network are compared with the maximum deviation value threshold of the failure rate and the maximum deviation floating amount threshold respectively.

4. The electric power supply monitoring and early warning system based on information feedback analysis according to claim 3 is characterized in that: If the maximum deviation value of the power equipment failure rate during the power supply period and the non-power supply period during the operation of the power network exceeds the maximum deviation value threshold of the failure rate, or the maximum deviation floating amount of the supply and demand corresponding to the power equipment supply time during the power supply period during the operation of the power network exceeds the maximum deviation floating amount threshold, then it is determined that the power supply fault monitoring of the power network is abnormal, a high power supply fault signal is generated and the high power supply fault signal is uploaded to the power equipment end; If the maximum deviation value of the power equipment failure rate during the power supply period and the non-power supply period during the operation of the power network does not exceed the maximum deviation value threshold of the failure rate, and the maximum deviation fluctuation amount of the supply and demand amount corresponding to the power equipment supply time during the power supply period during the operation of the power network does not exceed the maximum deviation fluctuation amount threshold, then it is determined that the power supply fault monitoring of the power network is normal, and a low power supply fault signal is generated and uploaded to the power equipment end.

5. The electric power supply monitoring and early warning system based on information feedback analysis according to claim 1 is characterized in that: The operation process of the tower planning and evaluation unit is as follows: The deviation value between the setting height of the power transmission tower at the planned location of the power transmission tower in the power network coverage area and the setting height of the power transmission tower at the real-time monitoring moment is obtained, and the growth rate of the numerical floating of the setting height at the planned location of the power transmission tower in the power network coverage area is obtained, and the deviation value of the setting height of the power transmission tower at the planned location of the power transmission tower in the power network coverage area and the setting height of the power transmission tower at the real-time monitoring moment and the growth rate of the numerical floating of the setting height at the planned location of the power transmission tower in the power network coverage area are compared with the setting height deviation value threshold and the numerical floating growth rate threshold respectively.

6. The electric power supply monitoring and early warning system based on information feedback analysis according to claim 5 is characterized in that: If the growth rate of the numerical fluctuation of the set height at the planned location of the power transmission tower in the power network coverage area exceeds the set height deviation value threshold, or the growth rate of the numerical fluctuation of the set height at the planned location of the power transmission tower in the power network coverage area exceeds the numerical fluctuation growth rate threshold, then it is determined that the planned location of the power transmission tower in the power network coverage area is abnormal, and a geological subsidence risk signal is generated and sent to the power transmission end, and the power transmission end uploads the geological subsidence risk signal to the power network platform, and the power network platform re-plans the location of the power transmission tower in the coverage area; If the growth rate of the numerical floating of the set height at the planned location of the power transmission tower in the power network coverage area does not exceed the set height deviation value threshold, and the growth rate of the numerical floating of the set height at the planned location of the power transmission tower in the power network coverage area does not exceed the numerical floating growth rate threshold, then it is determined that the planned location of the power transmission tower in the power network coverage area is normal, and a low planning risk signal is generated and sent to the power transmission end.

7. The electric power supply monitoring and early warning system based on information feedback analysis according to claim 1 is characterized in that: The operation process of the power supply coordination analysis unit is as follows: The interval between the instruction processing period at the power equipment end and the transmission execution period at the power transmission end during the power network power supply period, as well as the deviation between the shortest interval between the power equipment end transportation instruction modification and the shortest time taken to modify the transportation instruction at the power transmission end during the power network power supply period are obtained, and compared with the time interval threshold and the time deviation threshold respectively: If the interval between the instruction processing period at the power equipment end and the transmission execution period at the power transmission end during the power supply period of the power network exceeds the interval time threshold, or the deviation between the shortest interval time for modifying the transportation instruction at the power equipment end and the shortest time for modifying the transportation instruction at the power transmission end during the power supply period of the power network exceeds the time deviation threshold, a coordinated power supply inefficiency signal is generated and uploaded to the power network platform; If the interval between the command processing period at the power equipment end and the transmission execution period at the power transmission end during the power supply period of the power network does not exceed the period interval time threshold, and the time deviation between the shortest interval time for modifying the transport command at the power equipment end and the shortest time for modifying the transport command at the power transmission end during the power supply period of the power network does not exceed the time deviation threshold, a coordinated power supply high-efficiency signal is generated and uploaded to the power network platform.

Citation Information

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