Power supply chain safety early warning system adapted to power transmission, supply and distribution services

Abstract

The invention belongs to the technical field of electric power supervision, and particularly relates to an electric power supply chain safety early warning system adaptive to power transmission, supply and distribution business, which comprises a power utilization monitoring transmission module, an electric power supply plan analysis module, an electric power production monitoring module, a power transmission risk management module and an electric power early warning decision center, the power supply plan analysis module performs power supply plan analysis to determine a power generation plan threshold value corresponding to a target time period, and the power production monitoring module determines whether to generate a power production speed early warning signal based on the power generation plan threshold value through power production speed performance analysis. When a power production speed early warning signal is generated, power generation supervision is enhanced to ensure power generation stability and meet power utilization requirements, and a power transmission risk management module is used for monitoring all high-voltage power transmission lines for power transmission and judging the power transmission risk of each high-voltage power transmission line; the power transmission stability and the power transmission safety of each high-voltage power transmission line are ensured, and the power management difficulty is remarkably reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power supervision, and in particular to a power supply chain security early warning system suitable for power transmission, supply and distribution services. Background Art

[0002] The power supply chain is a complex network structure, involving the entire process from power production, transmission, distribution and consumption. With the continuous growth of power demand and the increase of power system complexity, the potential safety hazards in the power supply chain are becoming increasingly prominent. Therefore, it is necessary to conduct safety monitoring and early warning of the power supply chain.

[0003] At present, when conducting power supply chain management, it is often difficult to scientifically formulate corresponding power generation plans for each time period of the day and reasonably evaluate the power generation control performance. It is also impossible to gradually and accurately determine the transmission risks and safety hazards of high-voltage transmission lines and issue timely warnings, which increases the difficulty of power management.

[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 provide a power supply chain security early warning system suitable for power transmission, supply and distribution business, which solves the problems that the prior art is difficult to scientifically formulate corresponding power generation plans for each time period of the day and reasonably evaluate the power generation control performance, and is unable to gradually and progressively accurately judge the transmission risks and safety hazards of high-voltage transmission lines and issue timely early warnings, making power management difficult.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The power supply chain security early warning system suitable for power transmission, supply and distribution business includes power consumption monitoring and transmission module, power supply plan analysis module, power production monitoring module, power transmission risk management module and power early warning decision center;

[0008] The power consumption monitoring and transmission module is used to monitor power consumption, collect power consumption data in real time and send the power consumption data to the power supply plan analysis module and the power early warning decision center;

[0009] The power supply plan analysis module sets eight plan periods every day, each of which lasts three hours. It obtains the current plan period and marks it as the target period. It determines the power generation plan threshold corresponding to the target period through power supply plan analysis, and sends the power generation plan threshold to the power production monitoring module and the power early warning decision center.

[0010] The power production monitoring module monitors the power production of the power plant, and determines whether to generate a power production speed warning signal through power production speed performance analysis, and sends the power production speed warning signal to the power warning decision center when the power production speed warning signal is generated;

[0011] The transmission risk management module is used to monitor all high-voltage transmission lines that transmit electric energy, determine the transmission risk of each high-voltage transmission line, and generate a transmission warning signal or a transmission safety signal for the corresponding high-voltage transmission line, and send the transmission warning signal or the transmission safety signal of the corresponding transmission line to the power warning decision center; the power warning decision center issues a corresponding warning when it receives the power production speed warning signal or the transmission warning signal.

[0012] Furthermore, the specific analysis process of power supply plan analysis is as follows:

[0013] The forward tracing period is set to P1 with the current date as the end date, and the power consumption data of the planned period corresponding to the corresponding date and the target period in the forward tracing period are marked as the power generation inspection value, and the power generation inspection value corresponding to the forward tracing period and the target period is averaged to obtain the power generation judgment value;

[0014] A number of preset power generation judgment value ranges are set in advance, and each set of preset power generation judgment value ranges corresponds to a set of preset power generation speed thresholds; the power generation judgment value is compared with all the preset power generation judgment value ranges one by one, the preset power generation judgment value range containing the corresponding power generation judgment value is marked as a selected range, and the power generation speed threshold corresponding to the selected range is marked as the power generation plan threshold of the target period.

[0015] Furthermore, the specific analysis process of analyzing the performance of power production speed to determine whether to generate a power production speed warning signal is as follows:

[0016] The real-time power generation speed of the power plant is collected, the difference between the real-time power generation speed and the power generation plan threshold is calculated and the absolute value is taken to obtain the power generation deviation value, the power generation deviation value is numerically compared with the preset power generation deviation threshold, if the power generation deviation value exceeds the preset power generation deviation threshold, it is judged that the current power production is in an abnormal state; the power production condition assessment value is obtained through analysis, the power production condition assessment value is numerically compared with the preset power production condition assessment threshold, if the power production condition assessment value exceeds the preset power production condition assessment threshold, a power production speed warning signal is generated.

[0017] Furthermore, the specific analysis process of obtaining the power production evaluation value through analysis is as follows:

[0018] The number of occurrences of abnormal power production within a unit time is obtained and marked as the power production abnormality detection value, and when it is judged that the power production is currently in an abnormal state, its recovery time is collected, and all recovery times within a unit time are summed up to obtain the power recovery time value;

[0019] The recovery time is numerically compared with the preset recovery time threshold, and the number of recovery times exceeding the preset recovery time threshold per unit time is marked as the power recovery frequency deviation value, and the average of all generator tube deviation values ​​per unit time is calculated to obtain the generator tube inspection value; the power production condition assessment value is obtained by numerically calculating the generator tube inspection value, the power production frequency deviation value, the power recovery frequency deviation value and the power recovery condition value.

[0020] Furthermore, the specific operation process of the transmission risk management module includes:

[0021] All high-voltage transmission lines that need to be managed are obtained, and the corresponding high-voltage transmission lines are marked as analysis objects i, where i is a natural number greater than 1; the analysis object i is divided into several sub-segments, the power consumption speed of the corresponding sub-segments is collected, and the power consumption speed is numerically compared with the preset power consumption speed threshold. If the power consumption speed exceeds the preset power consumption speed threshold, the corresponding sub-segment is marked as a risk segment;

[0022] If the electric energy consumption rate does not exceed the preset electric energy consumption rate threshold, the segment temperature assessment value of the corresponding sub-segment is obtained through analysis, and the segment temperature assessment value is numerically compared with the preset segment temperature assessment threshold. If the segment temperature assessment value exceeds the preset segment temperature assessment threshold, the corresponding sub-segment is marked as a risk segment; if there is a risk segment on the analysis object i, a transmission warning signal of the corresponding high-voltage transmission line is generated; if there is no risk segment on the analysis object i, a transmission safety signal of the corresponding high-voltage transmission line is generated.

[0023] Furthermore, the method for analyzing and obtaining the segment temperature evaluation value is as follows:

[0024] A number of detection points are set on the corresponding sub-segment of the analysis object i, and the real-time temperatures of the corresponding detection points are collected. The real-time temperatures of all the detection points are averaged to obtain the segment temperature performance value, and the proportion of the number of detection points whose real-time temperatures exceed the preset real-time temperature threshold is marked as the segment temperature anomaly detection value, and the real-time temperature with the largest value is marked as the segment temperature amplitude value; the segment temperature evaluation value is obtained by numerically calculating the segment temperature performance value, the segment temperature anomaly detection value and the segment temperature amplitude value.

[0025] Furthermore, the transmission risk management module is communicatively connected to the transmission auxiliary analysis module, and the transmission risk management module sends the transmission safety signal of the corresponding high-voltage transmission line to the transmission auxiliary analysis module. When the transmission auxiliary analysis module receives the transmission safety signal, it performs auxiliary analysis on the potential hidden dangers of the corresponding high-voltage transmission line, and determines through analysis whether to generate a key attention signal for the corresponding high-voltage transmission line, and sends the key attention signal of the corresponding high-voltage transmission line to the power early warning decision center. When the power early warning decision center receives the key attention signal, it issues a warning.

[0026] Furthermore, the specific analysis process of the power transmission auxiliary analysis module is as follows:

[0027] The jitter amplitude and jitter frequency of the corresponding high-voltage transmission line are collected and marked as the line jitter amplitude detection value and the line jitter frequency detection value respectively, and the ambient temperature, ambient humidity and ambient wind speed of the environment in which the corresponding high-voltage transmission line is located are collected, and the deviation value of the ambient temperature compared to the set suitable ambient temperature standard value is marked as the line ambient temperature value, and the line ambient humidity value is obtained similarly; and the ambient wind speed of the environment in which the corresponding high-voltage transmission line is located is collected and marked as the line ambient wind value, and the line jitter amplitude detection value, the line jitter frequency detection value, the line ambient temperature value, the line ambient humidity value and the line ambient wind value are numerically calculated to obtain the transmission auxiliary analysis value;

[0028] The line decision value of the corresponding high-voltage transmission line is obtained by analysis, and several groups of preset line decision value ranges are set in advance, and each group of preset line decision value ranges corresponds to a group of preset transmission auxiliary analysis thresholds; the line decision value of the corresponding high-voltage transmission line is compared with all the preset line decision value ranges one by one, and the transmission auxiliary analysis threshold corresponding to the preset line decision value range containing the corresponding line decision value is marked as the optimal judgment threshold;

[0029] The transmission auxiliary analysis value of the corresponding high-voltage transmission line is numerically compared with the corresponding optimal judgment threshold. If the transmission auxiliary analysis value exceeds the optimal judgment threshold, a key attention signal of the corresponding high-voltage transmission line is generated.

[0030] Furthermore, the specific analysis process of obtaining the line decision value of the corresponding high-voltage transmission line through analysis is as follows:

[0031] The commissioning date of the corresponding high-voltage transmission line is collected, the interval between the current date and the commissioning date is marked as the line time detection value, and the ratio of the total number of faults of the corresponding high-voltage transmission line in the historical stage to the line time detection value is marked as the line fault detection value, and the line operation and maintenance detection value is obtained by averaging all operation and maintenance intervals for the corresponding high-voltage transmission line in the historical stage; the line decision value of the corresponding high-voltage transmission line is obtained by numerically calculating the line time detection value, the line fault detection value and the line operation and maintenance detection value.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. In the present invention, the power supply plan analysis module is used to perform power supply plan analysis to determine the power generation plan threshold corresponding to the target time period. The power production monitoring module determines whether to generate a power production speed warning signal based on the power generation plan threshold and through power production speed performance analysis. When the power production speed warning signal is generated, power generation supervision is strengthened to ensure power generation stability and meet power demand. In addition, the power transmission risk management module monitors all high-voltage transmission lines for power transmission and determines the transmission risk of each high-voltage transmission line, thereby ensuring the transmission stability and safety of each high-voltage transmission line, and significantly reducing the difficulty of power management.

[0034] 2. In the present invention, the transmission safety signal of the corresponding high-voltage transmission line is sent to the transmission auxiliary analysis module through the transmission risk management module. When the transmission auxiliary analysis module receives the transmission safety signal, it performs auxiliary analysis on the potential hidden dangers of the corresponding high-voltage transmission line, and determines whether to generate a key attention signal for the corresponding high-voltage transmission line through analysis. When the key attention signal is generated, the corresponding high-voltage transmission line is continuously focused on, and the corresponding high-voltage transmission line is inspected and repaired as needed, so as to further ensure the stability and safety of transmission, and the degree of intelligence is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings;

[0036] Figure 1 This is a system block diagram of Embodiment 1 of the present invention;

[0037] Figure 2 This is a system block diagram of Embodiment 2 of the present invention. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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.

[0039] Embodiment 1: Figure 1 As shown, the power supply chain security early warning system suitable for power transmission, supply and distribution business proposed by the present invention includes a power consumption monitoring and transmission module, a power supply plan analysis module, a power production monitoring module, a power transmission risk management module and a power early warning decision center;

[0040] It should be noted that the power supply chain involves the entire process from power production, transmission, distribution and consumption. Power production is the starting point of the supply chain. Power plants convert primary energy (such as coal, water, wind, solar energy, etc.) into electrical energy through different energy conversion methods. The produced electrical energy is transmitted over long distances through high-voltage transmission lines. After the electrical energy reaches the power consumption area, it is distributed to various users through the distribution network. End users (such as households, businesses, public facilities, etc.) use electricity for production, life, entertainment and other activities.

[0041] The electricity consumption monitoring and transmission module is used to monitor electricity consumption, collect power consumption data in real time (i.e. the sum of the electric energy consumed by the end users) and send the power consumption data to the power supply plan analysis module and the power early warning decision center. It not only helps power management personnel to grasp the power consumption status in detail, but also provides data support for the power production plan analysis of the power supply plan analysis module to ensure the accuracy of its planning results.

[0042] The power supply plan analysis module sets eight planning periods every day, each of which lasts three hours. It also obtains the current planning period and marks it as the target period. It determines the power generation plan threshold corresponding to the target period through power supply plan analysis, and sends the power generation plan threshold to the power production monitoring module and the power early warning decision center, which is helpful for power generation planning and evaluating the power generation execution and control performance. The specific analysis process of power supply plan analysis is as follows:

[0043] The forward tracing period is set to P1 with the current date as the end date. Preferably, the forward tracing period is fifteen days. The power consumption data of the planned period corresponding to the corresponding date and the target period in the forward tracing period are marked as the power generation inspection value, and the average of all the power generation inspection values ​​corresponding to the forward tracing period and the target period is calculated to obtain the power generation judgment value.

[0044] A plurality of groups of preset power generation judgment value ranges are set in advance, and each group of preset power generation judgment value ranges corresponds to a group of preset power generation speed thresholds; it should be noted that the values ​​of the preset power generation speed thresholds are all positive numbers, and the larger the value of the corresponding preset power generation judgment value range is, the larger the value of the preset power generation speed threshold that matches it is;

[0045] The power generation judgment value is compared with all preset power generation judgment value ranges one by one, the preset power generation judgment value range containing the corresponding power generation judgment value is marked as the selected range, the power generation speed threshold corresponding to the selected range is marked as the power generation plan threshold of the target period, and the power generation speed is managed according to the power generation plan threshold in the current target period, which significantly reduces the difficulty of power generation management.

[0046] The power production monitoring module monitors the power production of the power plant, and determines whether to generate a power production speed warning signal through power production speed performance analysis. When the power production speed warning signal is generated, the power production speed warning signal is sent to the power warning decision center. When the power warning decision center receives the power production speed warning signal, it issues a corresponding warning, which can reasonably analyze and accurately evaluate the power generation execution control performance. The power management personnel strengthen the power generation supervision in time, so as to ensure the stability of power generation and meet the power demand. The specific analysis process is as follows:

[0047] The real-time power generation speed of the power plant is collected, and the difference between the real-time power generation speed and the power generation plan threshold is calculated and the absolute value is taken to obtain the power generation management deviation value, wherein the larger the value of the power generation management deviation value is, the worse the power generation speed management performance at the corresponding moment is, and the power generation management deviation value is compared with the preset power generation management deviation threshold value. If the power generation management deviation value exceeds the preset power generation management deviation threshold value, it indicates that the power generation speed management performance at the corresponding moment is poor, and it is judged that the current power production is in an abnormal state;

[0048] The number of occurrences of abnormal power production within a unit time is obtained and marked as the power production abnormality detection value, and when it is judged that the power production is currently in an abnormal state, its recovery time (that is, the interval between the moment when the power production is judged to be in an abnormal state and the moment when the power production is out of the abnormal state) is collected, and all the recovery time within a unit time are summed up to obtain the power recovery time value;

[0049] The recovery time is numerically compared with the preset recovery time threshold, and the number of recovery times exceeding the preset recovery time threshold in a unit time is marked as the power recovery frequency difference value, and the average value of all the generator tube deviation values ​​in a unit time is calculated to obtain the generator tube inspection value;

[0050] By formula The power generation inspection value Eg, the power generation frequency detection value Et, the power recovery frequency detection value Ew and the power recovery condition value Ep are numerically calculated to obtain the power generation condition evaluation value Qey; wherein, s1, s2, s3, s4 are preset proportional coefficients with values ​​greater than zero, s3>s2>s1>s4; and, the larger the value of the power generation condition evaluation value Qey, the worse the power production control performance is in general;

[0051] The power production condition assessment value Qey is numerically compared with the preset power production condition assessment threshold. If the power production condition assessment value Qey exceeds the preset power production condition assessment threshold, it indicates that the overall power production control performance is poor and power production supervision needs to be strengthened in a timely manner, then a power production speed warning signal is generated.

[0052] The transmission risk management module is used to monitor all high-voltage transmission lines for electric energy transmission, determine the transmission risk of each high-voltage transmission line, and generate a transmission warning signal or a transmission safety signal for the corresponding high-voltage transmission line, and send the transmission warning signal or the transmission safety signal for the corresponding transmission line to the power warning decision center;

[0053] When the power early warning decision center receives the transmission early warning signal, it will issue a corresponding early warning, and can gradually and progressively evaluate the transmission risk of each high-voltage transmission line to remind power management personnel to promptly inspect and repair the corresponding high-voltage transmission lines, ensure the transmission stability and safety of each high-voltage transmission line, further reduce the difficulty of power management, and have a high degree of intelligence; the specific operation process of the transmission risk management module is as follows:

[0054] All high-voltage transmission lines that need to be managed are obtained, and the corresponding high-voltage transmission lines are marked as analysis objects i, where i is a natural number greater than 1; the analysis object i is divided into several sub-segments, and the power consumption rate of the corresponding sub-segment (i.e., the data value of the amount of power consumed by the corresponding sub-segment itself within a certain period of time) is collected, and the power consumption rate is numerically compared with the preset power consumption rate threshold. If the power consumption rate exceeds the preset power consumption rate threshold, it indicates that the power consumption of the corresponding sub-segment is too large, and the probability of abnormalities such as leakage is high, and the corresponding sub-segment is marked as a risk segment;

[0055] If the power consumption rate does not exceed the preset power consumption rate threshold, several detection points are set on the corresponding sub-segment of the analysis object i, and the real-time temperature of the corresponding detection points is collected. The real-time temperatures of all detection points are averaged to obtain the segment temperature performance value, and the real-time temperature of the corresponding detection point is numerically compared with the preset real-time temperature threshold. The number of detection points whose real-time temperature exceeds the preset real-time temperature threshold is marked as the segment temperature abnormal detection value, and the real-time temperature with the largest value is marked as the segment temperature amplitude value;

[0056] The segment temperature evaluation value FRi is obtained by numerically calculating the segment temperature performance value WYi, the segment temperature abnormality detection value WPi and the segment temperature amplitude value WNi through the formula FRi=hg2*WPi+(hg1*WYi+hg3*WNi) / 2; wherein hg1, hg2 and hg3 are preset proportional coefficients, hg2>hg1>hg3>0; and the larger the value of the segment temperature evaluation value FRi is, the more abnormal the temperature condition of the corresponding sub-segment on the analysis object i is;

[0057] The segment temperature assessment value FRi is numerically compared with the preset segment temperature assessment threshold. If the segment temperature assessment value FRi exceeds the preset segment temperature assessment threshold, it indicates that the temperature condition of the corresponding sub-segment on the analysis object i is relatively abnormal, and the corresponding sub-segment is marked as a risk segment; if there is a risk segment on the analysis object i, it indicates that the safety risk of the corresponding high-voltage transmission line is relatively large, and a transmission warning signal of the corresponding high-voltage transmission line is generated; if there is no risk segment on the analysis object i, it indicates that the safety risk of the corresponding high-voltage transmission line is relatively small, and a transmission safety signal of the corresponding high-voltage transmission line is generated.

[0058] Embodiment 2: Figure 2 As shown, the difference between this embodiment and the first embodiment is that the power transmission risk management module is communicatively connected to the power transmission auxiliary analysis module, the power transmission risk management module sends the power transmission safety signal of the corresponding high-voltage transmission line to the power transmission auxiliary analysis module, and the power transmission auxiliary analysis module performs auxiliary analysis on the potential hidden dangers of the corresponding high-voltage transmission line when receiving the power transmission safety signal, and determines whether to generate a key concern signal of the corresponding high-voltage transmission line through analysis;

[0059] And the key attention signal of the corresponding high-voltage transmission line is sent to the power early warning decision center. When the power early warning decision center receives the key attention signal, it will issue an early warning. When it is judged that the transmission risk of the corresponding high-voltage transmission line is small, it can further evaluate its operation hidden danger status and realize the hidden danger auxiliary analysis of the high-voltage transmission line. When receiving the early warning, the power management personnel will continue to pay attention to the corresponding high-voltage transmission line, and inspect and repair the corresponding high-voltage transmission line as needed, so as to further ensure the stability and safety of power transmission. The specific analysis process of the transmission auxiliary analysis module is as follows:

[0060] The jitter amplitude and jitter frequency of the corresponding high-voltage transmission line are collected and marked as the line jitter amplitude detection value and the line jitter frequency detection value respectively, and the ambient temperature, ambient humidity and ambient wind speed of the environment in which the corresponding high-voltage transmission line is located are collected, and the deviation value of the ambient temperature compared to the set suitable ambient temperature standard value is marked as the line ambient temperature value, and the line ambient humidity value is obtained similarly;

[0061] And the ambient wind speed of the environment in which the corresponding high-voltage transmission line is located is collected and marked as the line ring wind value, and the line jitter amplitude detection value PNi, the line jitter frequency detection value PMi, the line ambient temperature value PTi, the line ambient humidity value PHi and the line ring wind value PKi are numerically calculated by the formula PXi=(e1*PNi+e2*PMi+e3*PTi+e4*PHi+e5*PKi) / 5 to obtain the transmission auxiliary analysis value PXi; wherein, e1, e2, e3, e4, and e5 are preset proportional coefficients with values ​​greater than zero, and the larger the value of the transmission auxiliary analysis value PXi, the greater the safety hazard of the corresponding high-voltage transmission line;

[0062] The line decision value of the corresponding high-voltage transmission line is obtained through analysis, specifically: the commissioning date of the corresponding high-voltage transmission line is collected, the interval between the current date and the commissioning date is marked as the line time detection value, and the ratio of the total number of faults of the corresponding high-voltage transmission line in the historical stage to the line time detection value is marked as the line fault detection value, and the average of all operation and maintenance intervals for the corresponding high-voltage transmission line in the historical stage is calculated to obtain the line operation and maintenance detection value;

[0063] By formula The line time detection value LWi, the line fault detection value LPi and the line operation and maintenance detection value LFi are numerically calculated to obtain the line decision value LMi of the corresponding high-voltage transmission line; wherein uk1, uk2 and uk3 are preset proportional coefficients, uk2>uk3>uk1>0; and the larger the value of the line decision value LMi, the worse the line quality condition of the corresponding high-voltage transmission line is in general;

[0064] A number of preset line decision value ranges are set in advance, and each set of preset line decision value ranges corresponds to a set of preset transmission auxiliary analysis thresholds; the line decision value LMi of the corresponding high-voltage transmission line is compared with all preset line decision value ranges one by one, and the transmission auxiliary analysis threshold corresponding to the preset line decision value range containing the corresponding line decision value LMi is marked as the optimal judgment threshold, and the matching preset transmission auxiliary analysis threshold is allocated to the corresponding high-voltage transmission line, which is conducive to ensuring the accuracy of the hidden danger auxiliary analysis results;

[0065] The transmission auxiliary analysis value of the corresponding high-voltage transmission line is numerically compared with the corresponding optimal judgment threshold. If the transmission auxiliary analysis value exceeds the optimal judgment threshold, it indicates that the corresponding high-voltage transmission line has a large safety hazard, and a key attention signal for the corresponding high-voltage transmission line is generated.

[0066] The working principle of the present invention is as follows: when in use, electricity consumption is monitored through the electricity consumption monitoring and transmission module, the electricity supply plan analysis module determines the power generation plan threshold corresponding to the target time period through power supply plan analysis, the power production monitoring module monitors the power production of the power plant, and determines whether to generate a power production speed warning signal based on the power generation plan threshold of the target time period and through power production speed performance analysis. When generating a power production speed warning signal, power generation supervision is strengthened to ensure power generation stability and meet electricity demand, and all high-voltage transmission lines for power transmission are monitored through the transmission risk management module to determine the transmission risk of each high-voltage transmission line. When generating a transmission warning signal, the corresponding high-voltage transmission line is inspected and maintained to ensure the transmission stability and safety of each high-voltage transmission line, further reduce the difficulty of power management, and have a high degree of intelligence.

[0067] The above formulas are all dimensionless and numerical calculations. The formula is a formula obtained by collecting a large amount of data and performing software simulation to obtain the most recent real situation. The preset parameters in the formula are set by technicians in this field according to actual conditions. 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 contents 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 technicians in the relevant technical field can understand and use the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A power supply chain security early warning system suitable for power transmission, supply and distribution business, characterized by: It includes power consumption monitoring and transmission module, power supply plan analysis module, power production monitoring module, power transmission risk management module and power early warning decision center; The power consumption monitoring and transmission module is used to monitor power consumption, collect power consumption data in real time and send the power consumption data to the power supply plan analysis module and the power early warning decision center; The power supply plan analysis module sets eight plan periods every day, each of which lasts three hours. It obtains the current plan period and marks it as the target period. It determines the power generation plan threshold corresponding to the target period through power supply plan analysis, and sends the power generation plan threshold to the power production monitoring module and the power early warning decision center. The power production monitoring module monitors the power production of the power plant, and determines whether to generate a power production speed warning signal through power production speed performance analysis, and sends the power production speed warning signal to the power warning decision center when the power production speed warning signal is generated; The transmission risk management module is used to monitor all high-voltage transmission lines that transmit electric energy, determine the transmission risk of each high-voltage transmission line, and generate a transmission warning signal or a transmission safety signal for the corresponding high-voltage transmission line, and send the transmission warning signal or the transmission safety signal of the corresponding transmission line to the power warning decision center.

2. The power supply chain security early warning system adapted for power transmission, supply and distribution business according to claim 1 is characterized in that: The specific analysis process of power supply plan analysis is as follows: The forward tracing period is set to P1 with the current date as the end date, and the power consumption data of the planned period corresponding to the corresponding date and the target period in the forward tracing period are marked as the power generation inspection value, and the power generation inspection value corresponding to the forward tracing period and the target period is averaged to obtain the power generation judgment value; A plurality of preset power generation judgment value ranges are set in advance, and each preset power generation judgment value range corresponds to a set of preset power generation speed thresholds; the preset power generation judgment value ranges containing corresponding power generation judgment values ​​are marked as selected ranges, and the power generation speed threshold corresponding to the selected range is marked as the power generation plan threshold of the target period.

3. The power supply chain security early warning system adapted for power transmission, supply and distribution business according to claim 1 is characterized in that: The specific analysis process of analyzing the performance of power production speed to determine whether to generate a power production speed warning signal is as follows: The real-time power generation speed of the power plant is collected, and the difference between the real-time power generation speed and the power generation plan threshold is calculated and the absolute value is taken to obtain the power generation tube deviation value. If the power generation tube deviation value exceeds the preset power generation tube deviation threshold, it is judged that the current power production is in an abnormal state; the power production condition assessment value is obtained through analysis. If the power production condition assessment value exceeds the preset power production condition assessment threshold, a power production speed warning signal is generated.

4. The power supply chain security early warning system adapted for power transmission, supply and distribution business according to claim 3 is characterized in that: The specific analysis process of obtaining the power production assessment value through analysis is as follows: The number of occurrences of abnormal power production within a unit time is obtained and marked as the power production abnormality detection value, and when it is judged that the power production is currently in an abnormal state, its recovery time is collected, and all recovery times within a unit time are summed up to obtain the power recovery time value; The number of recovery times exceeding the preset recovery time threshold within a unit time is marked as the power recovery frequency deviation value, and the average of all power generation tube deviation values ​​within a unit time is calculated to obtain the power generation tube inspection value; the power generation condition assessment value is obtained by numerically calculating the power generation tube inspection value, the power generation frequency deviation value, the power recovery frequency deviation value and the power recovery condition value.

5. The power supply chain security early warning system adapted for power transmission, supply and distribution business according to claim 1 is characterized in that: The specific operation process of the transmission risk management module includes: All high-voltage transmission lines that need to be managed are obtained, and the corresponding high-voltage transmission lines are marked as analysis objects i, where i is a natural number greater than 1; the analysis object i is divided into several sub-segments, and the power consumption speed of the corresponding sub-segments is collected. If the power consumption speed exceeds the preset power consumption speed threshold, the corresponding sub-segment is marked as a risk segment; If the electric energy consumption rate does not exceed the preset electric energy consumption rate threshold, the segment temperature assessment value of the corresponding sub-segment is obtained through analysis; if the segment temperature assessment value exceeds the preset segment temperature assessment threshold, the corresponding sub-segment is marked as a risk segment; if there is a risk segment on the analysis object i, a transmission warning signal of the corresponding high-voltage transmission line is generated; if there is no risk segment on the analysis object i, a transmission safety signal of the corresponding high-voltage transmission line is generated.

6. The power supply chain security early warning system adapted for power transmission, supply and distribution business according to claim 5 is characterized in that: The analysis and acquisition method of the segment temperature evaluation value is as follows: A number of detection points are set on the corresponding sub-segment of the analysis object i, and the real-time temperatures of the corresponding detection points are collected. The real-time temperatures of all the detection points are averaged to obtain the segment temperature performance value, and the proportion of the number of detection points whose real-time temperatures exceed the preset real-time temperature threshold is marked as the segment temperature anomaly detection value, and the real-time temperature with the largest value is marked as the segment temperature amplitude value; the segment temperature evaluation value is obtained by numerically calculating the segment temperature performance value, the segment temperature anomaly detection value and the segment temperature amplitude value.

7. The power supply chain security early warning system adapted for power transmission, supply and distribution business according to claim 5 is characterized in that: The transmission risk management module is communicatively connected to the transmission auxiliary analysis module. The transmission risk management module sends the transmission safety signal of the corresponding high-voltage transmission line to the transmission auxiliary analysis module. When the transmission auxiliary analysis module receives the transmission safety signal, it performs auxiliary analysis on the potential hidden dangers of the corresponding high-voltage transmission line, and determines whether to generate a key attention signal for the corresponding high-voltage transmission line through analysis, and sends the key attention signal of the corresponding high-voltage transmission line to the power early warning decision center.

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