Power supply service command-oriented power supply reliability evaluation method and device

Abstract

The invention provides a power supply reliability evaluation method and device for power supply service command, relates to the technical field of electric power information, and solves the problem that the power supply capability of a power supply area is difficult to reflect truly due to a large number of evaluation factors for power supply reliability in the prior art to a certain extent. According to the method provided by the invention, the fault first-aid repair time upper limit of the region is calculated based on the load density of the target grid region, the per household power failure duration of the region is calculated according to the fault time of the transformer in the target grid region, and then the calculated per household power failure duration is used as a factor for evaluating the power supply reliability of the grid region. And comparing the per household power failure duration of the grid area with the upper limit of the fault first-aid repair time, and performing power supply reliability evaluation on the grid area according to an obtained comparison result.

Description

Technical Field

[0001] The present invention relates to the field of electric power information technology, and in particular to a power supply reliability evaluation method and device for power supply service command. Background Art

[0002] Power supply service command is a command and decision-making business that dispatches resources related to fault repair and equipment operation and maintenance in order to meet the power supply service guarantee needs of users. The premise of providing high-quality power supply services to electricity users is to reasonably allocate various resources required for power supply services. Only by reasonably and scientifically allocating emergency repair resource elements such as equipment, vehicles, and personnel in the area can the power supply service business be assisted to achieve efficient and accurate command and decision-making. The power supply reliability evaluation is carried out according to the load distribution in the user's area and the demand for emergency repair resources. The power supply reliability evaluation results provide data support for the subsequent optimization of power supply service command decisions.

[0003] The existing power supply reliability evaluation takes into account multiple factors such as the power supply radius of the current area, the years of equipment operation, user satisfaction evaluation, line wiring standardization, etc. The more evaluation factors there are for power supply reliability in the allocation of emergency repair resources for power supply service command business, the more the corresponding power supply reliability evaluation results are affected by user subjective factors, and it is difficult to truly reflect the power supply capacity of the power supply area. Summary of the invention

[0004] In order to solve the problem in the prior art that the large number of evaluation factors for power supply reliability makes it difficult to truly reflect the power supply capacity of the power supply area, the present invention proposes a power supply reliability evaluation method and device for power supply service command.

[0005] On the one hand, the present invention provides a power supply reliability evaluation method for power supply service command, comprising:

[0006] Obtain historical power outage records of transformers in the target grid area;

[0007] Based on the historical power outage records of the transformer, calculate the average power outage duration per household in the target grid area;

[0008] Based on the load density of the target grid area, calculating the upper limit of the fault repair time of the target grid area;

[0009] The average power outage duration per household in the target grid area and the upper limit of the fault repair time in the target grid area are compared to obtain a comparison result; and a power supply reliability evaluation result of the target grid area is determined according to the comparison result.

[0010] Optionally, the calculating the upper limit of the emergency repair time of the target grid based on the load density of the target grid area includes:

[0011] Based on the load density of the target grid area, the area type of the target grid area is obtained by using a preset correspondence relationship between the load density and the area type;

[0012] According to the area type of the target grid area, a fault repair time acceptance coefficient corresponding to the area type is obtained, and the fault repair time acceptance coefficient is confirmed as the upper limit of the fault repair time of the target grid area.

[0013] Optionally, the calculating the average power outage duration per household in the target grid area based on the historical power outage record of the transformer includes:

[0014] Based on the acquired historical power outage records of the transformer, the number of power outages of each transformer and the duration of each power outage are obtained;

[0015] For each transformer, summing up the duration of each power outage of the transformer to obtain a total power outage duration of the transformer;

[0016] Sum the total power outage duration of the transformer to obtain the power outage duration of the target grid area;

[0017] Based on the power outage duration and the number of transformers in the target grid area, an average power outage duration of transformers in the target grid area is obtained, and the average power outage duration of transformers in the target grid area is determined as the average power outage duration per household in the target grid area.

[0018] Optionally, the process of summing the power outage duration of each transformer to obtain the total power outage duration of the transformer satisfies the following expression:

[0019]

[0020] Where, T pause,sum is the total power outage duration of the transformer; i is the i-th power outage of the transformer, i=1,…,k; k is the number of power outages of the transformer; T pause,i is the power outage duration of the transformer during the i-th power outage.

[0021] Optionally, the process of obtaining the average power outage duration of transformers in the target grid area based on the power outage duration and the number of transformers in the target grid area satisfies the following expression:

[0022]

[0023] Where, t Fail,avgis the average power outage duration of the transformer in the target grid area; j is the jth line in the target grid area, j=1,…,n; n is the number of lines in the target grid area; are the number of public and dedicated transformers connected to the jth line in the target grid area; t Fail,j is the total power outage duration of all transformers on the j-th line in the target grid area.

[0024] Optionally, determining the power supply reliability evaluation result of the target grid area according to the comparison result includes:

[0025] When the comparison result is that the average power outage duration per household in the target grid area is longer than the upper limit of the emergency repair time in the target grid area, calculating the evaluation difference between the average power outage duration per household in the target grid area and the upper limit of the emergency repair time in the target grid area;

[0026] If the evaluation difference is greater than or equal to a preset power outage time threshold, it is determined that the power supply reliability of the target grid area is seriously insufficient;

[0027] If the evaluation difference is less than the power outage time threshold, it is determined that the power supply reliability of the target grid area is relatively insufficient.

[0028] Optionally, after the evaluation difference is less than a preset power outage time threshold and it is determined that the power supply reliability of the target grid area is relatively insufficient, the method further includes:

[0029] Calculating a weight difference between the preset power outage time threshold and the evaluation difference, and using the weight difference as a weight value for power supply service command resource configuration in the target grid area;

[0030] According to the power supply service command resource configuration weight value, the priority of the power supply service emergency repair resource configuration of the target grid area is adjusted, wherein the higher the power supply service command resource configuration weight value, the lower the priority of the power supply service emergency repair resource configuration of the target grid area.

[0031] Optionally, the method further includes:

[0032] When the comparison result is that the average power outage duration per household in the target grid area is less than or equal to the upper limit of the emergency repair time in the target grid area, it is determined that the average power outage duration per household in the target grid area has no effect on the power supply reliability of the target grid area.

[0033] Optionally, the historical power outage record of the transformer includes:

[0034] The transformer fault type, the transformer number, the transformer fault start time, the transformer fault end time, the grid number to which the transformer belongs, the duration of each transformer power outage and the number of transformer power outages; wherein the duration of each transformer power outage is obtained from the transformer fault start time and the transformer fault end time, and the number of transformer power outages is obtained from the transformer number, the transformer fault start time and the transformer fault end time.

[0035] On the other hand, the present application provides a power supply reliability evaluation device for power supply service command, comprising:

[0036] A data acquisition module, used to obtain historical power outage records of transformers in a target grid area;

[0037] A power outage duration acquisition module, used to calculate the average power outage duration per household in the target grid area based on the historical power outage records of the transformer;

[0038] A repair time acquisition module, used to acquire the load density of the target grid area and obtain the upper limit of the repair time of the target grid area;

[0039] The result evaluation module is used to compare the average power outage duration per household in the target grid and the upper limit of the emergency repair time of the target grid to obtain a comparison result; and determine the power supply reliability evaluation result of the target grid according to the comparison result.

[0040] Optionally, the emergency repair time acquisition module includes:

[0041] A region type acquisition unit, configured to obtain the region type of the target grid region based on the load density of the target grid region and using a preset correspondence relationship between the load density and the region type;

[0042] The emergency repair time acquisition unit is used to obtain a fault emergency repair time acceptance coefficient corresponding to the area type according to the area type of the target grid area, and confirm the fault emergency repair time acceptance coefficient as the upper limit of the fault emergency repair time of the target grid area.

[0043] Optionally, the power outage duration acquisition module includes:

[0044] A first duration acquisition unit, configured to obtain the number of power outages of each transformer and the duration of each power outage based on the acquired historical power outage records of the transformer;

[0045] A second duration acquisition unit is used to sum the power outage duration of each transformer for each transformer to obtain a total power outage duration of the transformer;

[0046] A third duration acquisition unit is used to sum the total power outage duration of the transformer to obtain the power outage duration of the target grid area;

[0047] The fourth duration acquisition unit is used to use the power outage duration of the target grid and the number of transformers to obtain the average power outage duration of the transformers in the target grid area, and determine the average power outage duration of the transformers in the target grid area as the average power outage duration per household in the target grid area.

[0048] Optionally, the second duration acquisition unit is specifically configured to sum the duration of each power outage of the transformer through the following expression to obtain a total power outage duration of the transformer:

[0049]

[0050] Where, T pause,sum is the total power outage duration of the transformer; i is the i-th power outage of the transformer, i=1,…,k; k is the number of power outages of the transformer; T pause,i is the power outage duration of the transformer during the i-th power outage.

[0051] Optionally, the fourth duration acquisition unit is specifically configured to obtain an average power outage duration of transformers in the target grid area through the following expression based on the power outage duration and the number of transformers in the target grid area:

[0052]

[0053] Where, t Fail,avg is the average power outage duration of the transformer in the target grid area; j is the jth line in the target grid area; n is the number of lines in the target grid area; are the number of public and dedicated transformers connected to the jth line in the target grid area; t Fail,j is the total power outage duration of all transformers on the j-th line in the target grid area.

[0054] Optionally, the result evaluation module includes:

[0055] An evaluation difference acquisition unit, configured to calculate an evaluation difference between the average power outage duration per household in the target grid area and the upper limit of the emergency repair time in the target grid area when the comparison result is that the average power outage duration per household in the target grid area is greater than the upper limit of the emergency repair time in the target grid area;

[0056] A first evaluation unit, configured to determine that the power supply reliability of the target grid area is seriously insufficient if the evaluation difference is greater than or equal to a preset power outage time threshold;

[0057] The second evaluation unit is configured to determine that the power supply reliability of the target grid area is relatively insufficient if the difference is less than the power outage time threshold.

[0058] Optionally, also include:

[0059] A repair resource configuration unit, used to calculate a weight difference between the preset power outage time threshold and the evaluation difference, and use the weight difference as a power supply service command resource configuration weight value of the target grid area;

[0060] According to the power supply service command resource configuration weight value, the priority of the power supply service emergency repair resource configuration of the target grid area is adjusted, wherein the higher the power supply service command resource configuration weight value, the lower the priority of the power supply service emergency repair resource configuration of the target grid area.

[0061] Optionally, the result evaluation module further includes:

[0062] The third evaluation unit is used to determine that the average power outage duration per household in the target grid area has no impact on the power supply reliability of the target grid area when the comparison result is that the average power outage duration per household in the target grid area is less than or equal to the upper limit of the emergency repair time of the target grid area.

[0063] Optionally, the historical power outage records of the transformer acquired by the data acquisition module specifically include:

[0064] The transformer fault type, the transformer number, the transformer fault start time, the transformer fault end time, the grid number to which the transformer belongs, the duration of each transformer power outage and the number of transformer power outages; wherein the duration of each transformer power outage is obtained from the transformer fault start time and the transformer fault end time, and the number of transformer power outages is obtained from the transformer number, the transformer fault start time and the transformer fault end time.

[0065] On the other hand, the present invention provides an electronic device, comprising at least one processor and a memory; the memory and the processor are connected via a bus;

[0066] The memory is used to store one or more programs;

[0067] When the one or more programs are executed by the at least one processor, the power supply reliability evaluation method for power supply service command as described in the above technical solution is implemented.

[0068] On the other hand, the present invention proposes a readable storage medium having an execution program stored thereon, and when the execution program is executed, the power supply reliability evaluation method for power supply service command as described in the above technical solution is implemented.

[0069] Compared with the prior art, the present invention has the following beneficial effects:

[0070] The present invention provides a power supply reliability evaluation method for power supply service command, which calculates the upper limit of fault repair time in a target grid area based on the load density of the area, calculates the average household power outage duration in the area according to the fault time of the transformer in the target grid area, and then uses the calculated average household power outage duration as a factor for power supply reliability evaluation of the grid area, and then compares the average household power outage duration and the upper limit of fault repair time in the grid area, and evaluates the power supply reliability of the grid area according to the comparison result. Compared with the power supply reliability evaluation method based on absolute power outage duration and rationality of power supply path in the prior art, the method provided in the present application directly measures the power supply reliability based on the average household power outage duration, and can reflect the real power supply capacity of the power supply area. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Figure 1 It is a flow chart of a power supply reliability evaluation method for power supply service command of the present invention;

[0072] Figure 2 is a schematic diagram of the grid, line and transformer of the present invention;

[0073] Figure 3 It is a flow chart of the steps of obtaining the average power outage duration per household in a target grid area of ​​a power supply reliability evaluation method for power supply service command of the present invention;

[0074] Figure 4 The figure is a schematic diagram of the structure of an electronic device of the present invention. DETAILED DESCRIPTION

[0075] The present invention proposes a power supply reliability evaluation method for power supply service command, which calculates the upper limit of fault repair time in a target grid area based on the load density of the area, calculates the average household power outage duration in the area according to the fault time of the transformer in the target grid area, and then uses the calculated average household power outage duration as a factor for power supply reliability evaluation of the grid area, and then compares the average household power outage duration and the upper limit of fault repair time in the grid area, and evaluates the power supply reliability of the grid area according to the comparison result. Compared with the power supply reliability evaluation method based on absolute power outage duration and rationality of power supply path in the prior art, the method provided in the present application directly measures the power supply reliability based on the average household power outage duration, and can reflect the real power supply capacity of the power supply area.

[0076] Embodiment 1:

[0077] like Figure 1 As shown, the present invention provides a power supply reliability evaluation method for power supply service command, comprising:

[0078] S101, obtaining historical power outage records of transformers in a target grid area;

[0079] S102, calculating the average power outage duration per household in the target grid area based on the historical power outage records of the transformer;

[0080] S103, calculating an upper limit of a fault repair time of the target grid area based on a load density of the target grid area;

[0081] S104, comparing the average power outage duration per household in the target grid area with the upper limit of the fault repair time in the target grid area to obtain a comparison result; and determining a power supply reliability evaluation result of the target grid area according to the comparison result.

[0082] For example, since the basic unit of the current power supply service command resource configuration object is the grid, each power consumption and transformer will be divided into a specific grid. The customer file of the power supply service command system records the historical power outage records of all transformers on each line in the target grid area.

[0083] There is a close correlation between the power supply service demand of each area in any region and the distribution characteristics of the power load in the area. Taking urban power grid and rural power grid as examples, the load density in urban power grid is higher, while the load density in rural power grid is lower. The total number of faults in urban power grid is higher, while the total number of faults in rural power grid is lower. However, the equipment for emergency repair of urban power grid faults requires a higher response speed. The equipment and load distribution of rural power grid are relatively scattered, and the use of common commuting tools takes longer time for emergency repair. Although the emergency repair of faults in rural power grids takes a long time, the distribution of emergency repair resources is relatively concentrated.

[0084] In summary, there are large differences in the loads of urban power grids and rural power grids, and their fault repair resource allocation and fault repair strategies need to be designed in a targeted manner according to their characteristics. In urban power grids, there are also certain differences in the load management requirements of regional power grids in different regions and with different characteristics. For example, the voltage level of repair equipment required in industrial and commercial clusters is higher, and residential users have higher requirements for the protection of basic loads required for life, while areas with dense distribution such as hospitals and schools require a quick impact time.

[0085] Therefore, the premise of carrying out emergency repair resource allocation for power supply service command business is to accurately and detailedly portray the load distribution in the user's area and the demand for emergency repair resources. This application measures the power supply reliability in the user's area from the perspective of power outage duration, providing an effective evaluation method for the power supply reliability evaluation of the corresponding area, thereby achieving reasonable allocation of emergency repair resources.

[0086] like Figure 2 As shown, each grid includes multiple lines, and multiple transformers are arranged on each line to realize power supply to the grid area.

[0087] S101 can be implemented as follows: obtaining the historical power outage records of the transformers on each line in the target grid area from the customer files in the power supply service command system, the historical power outage records of the transformers including data such as the grid to which the corresponding transformer belongs, fault power outage records, and planned power outage records. The obtained historical power outage records of the transformers are shown in Table 1.

[0088] Exemplarily, the historical power outage record of the transformer specifically includes:

[0089] The transformer fault type, the transformer number, the transformer fault start time, the transformer fault end time, the grid number to which the transformer belongs, the duration of each transformer power outage and the number of transformer power outages; wherein the duration of each transformer power outage is obtained from the transformer fault start time and the transformer fault end time, and the number of transformer power outages is obtained from the transformer number, the transformer fault start time and the transformer fault end time.

[0090] Table 1 Historical power outage records of transformers

[0091]

[0092]

[0093] The transformer ID in Table 1 is specifically the number of the transformer, which is used to indicate a public transformer and a special transformer; the fault type corresponds to the cause of the transformer power outage, including fault power outage and maintenance power outage; the fault start time is the moment when the transformer starts to lose power, and the fault end time is the moment when the transformer resumes power supply, and the grid number is the number of the grid area where the transformer is located.

[0094] When the transformer fails, the users supplied by the transformer also lose power. Therefore, the transformer power outage duration is defined as the user's power outage duration, thereby evaluating the power supply reliability of the target grid area.

[0095] Reference Figure 3 , illustratively, S102 may be implemented as follows:

[0096] S1021, based on the acquired historical power outage records of the transformer, obtain the number of power outages of each transformer and the duration of each power outage;

[0097] S1022, for each transformer, summing up the duration of each power outage of the transformer to obtain a total power outage duration of the transformer;

[0098] S1023, summing up the total power outage duration of the transformer to obtain the power outage duration of the target grid area;

[0099] S1024, based on the power outage duration and the number of transformers in the target grid area, obtain the average power outage duration of the transformers in the target grid area, and determine the average power outage duration of the transformers in the target grid area as the average power outage duration per household in the target grid area.

[0100] For example, in order to obtain the total outage duration of a single transformer in the target area, it is necessary to analyze the total outage duration of a single transformer in the target area according to the predefined analysis time range [D s ,D e ], obtain the historical power outage records of the transformer within the analysis time range, D s is the start time of the analysis time range, D e The end time of the analysis time range.

[0101] Then, taking a single transformer as the statistical unit, the analysis time range of each transformer [D s ,D e ] Total power outage duration within ].

[0102] S1022 satisfies the following expression:

[0103]

[0104] Where, T pause,sum is the total power outage duration of the transformer; i is the i-th power outage of the transformer, i=1,…,k; k is the number of power outages of the transformer; T pause,i is the power outage duration of the transformer during the i-th power outage.

[0105] For example, the above expression is used in the actual acquisition analysis time range [D s ,D e ], T pause,i For a transformer in the analysis time range [D s ,D e ] in the i-th power outage duration. In the time range [D s ,D e ], the transformer had a total of k power outages, T pause,sum For the transformer in the analysis time range [D s ,D e ] Total power outage duration within ].

[0106] S1023 can be implemented as follows: according to the number of transformers in the target grid area, the total power outage duration of each transformer obtained within the analysis time range is summed up in turn, so as to obtain the power outage duration of the target grid area, thereby improving the efficiency of obtaining the average power outage duration per household in the target grid area.

[0107] S1024 satisfies the following expression:

[0108]

[0109] Where, t Fail,avg is the average power outage duration of the transformer in the target grid area; j is the jth line in the target grid area, j=1,…,n; n is the number of lines in the target grid area; are the number of public and dedicated transformers connected to the jth line in the target grid area; t Fail,j is the total power outage duration of all transformers on the j-th line in the target grid area.

[0110] S103 can be implemented as follows:

[0111] S1031, based on the load density of the target grid area, using a preset correspondence relationship between load density and area type, obtaining the area type of the target grid area;

[0112] S1032: Obtain a fault repair time acceptance coefficient corresponding to the area type according to the area type of the target grid area, and confirm the fault repair time acceptance coefficient as the upper limit of the fault repair time of the target grid area.

[0113] Exemplarily, according to the location of the target grid area, the transformer basic file information table in the target grid area is obtained from the equipment management system, and the obtained transformer load density values ​​are averaged according to the load density values ​​of the transformers recorded in the transformer basic file information table, and the obtained average is used as the load density of the target grid area. The transformer basic file information table is shown in Table 2:

[0114] Table 2 Transformer basic file information table

[0115]

[0116] According to the load density in the target grid area, the area type in the target grid area is obtained from the equipment management system. There are 5 types of area types: A+, A, B, C, and D. Different types correspond to different load density ranges. Among them, A+ type represents that the load density value of the area is greater than 30, A type represents that the load density value of the area is between 15 and 30, B type represents that the load density value of the area is between 6 and 15, C type represents that the load density value of the area is between 1 and 6, and D type represents that the load density of the area is less than 1.

[0117] Since the difficulty and duration of emergency repair work vary in different areas with different load densities, the acceptance of emergency repair time in different areas also varies to a certain extent. Considering this factor, the power supply management department of the area has set limits on the acceptance coefficient of emergency repair time in each type of area. The acceptance coefficients of emergency repair time corresponding to the five types of areas A+, A, B, C, and D are R A+ , R A , R B , R C , R D The corresponding relationship between regional type, load density and fault repair time acceptance coefficient is shown in Table 3:

[0118] Table 3 Correspondence between regional type, load density and fault repair time acceptance coefficient

[0119] <![CDATA[Region type T area > Load densityθ Fault repair time acceptance coefficient R other <![CDATA[A + ]]> θ ≥ 30 <![CDATA[R A+ ]]> ... A 15≤θ<30 <![CDATA[R A ]]> ... B 6≤θ<15 <![CDATA[R B ]]> ... C 1≤θ<6 <![CDATA[R C ]]> ... D θ<1 0 ...

[0120] After confirming the area type of the target grid area, the upper limit of the emergency repair time T is obtained by the following expression: mp :

[0121] T mp =(if(T area =A + )*R A+ )+

[0122] (if(T area =A)*R A )+

[0123] (if(T area =B)*R B )+

[0124] (if(T area =C)*R C )

[0125] Where, T mp is the upper limit of the fault repair time in the target grid area; if (T area =A +) is if the area type of the target grid area is A + ; R A+ A + Fault repair time acceptance coefficient of regional type; if(T area =A) if the area type of the target grid area is A; R A is the fault repair time acceptance coefficient of area type A; if(T area =B) if the area type of the target grid area is B; R B is the fault repair time acceptance coefficient of area B type; if(T area =C) if the area type of the target grid area is C; R C is the fault repair time acceptance coefficient of area type C.

[0126] If the area type corresponding to the load density of the target grid area is A, set the area type identifier corresponding to the area to R. A , (if (Tarea = A)) is 1, calculate its corresponding repair time acceptance coefficient R A The product of can be used to obtain the upper limit value T of the emergency repair time of power supply service for users in this area. mp .

[0127] Optionally, step S104 includes:

[0128] When the comparison result is that the average power outage duration per household in the target grid area is longer than the upper limit of the emergency repair time in the target grid area, calculating the evaluation difference between the average power outage duration per household in the target grid area and the upper limit of the emergency repair time in the target grid area;

[0129] If the evaluation difference is greater than or equal to a preset power outage time threshold, it is determined that the power supply reliability of the target grid area is seriously insufficient;

[0130] If the evaluation difference is less than the power outage time threshold, it is determined that the power supply reliability of the target grid area is relatively insufficient.

[0131] Exemplarily, the preset power outage time threshold is the power supply restoration time established by the power supply management center where the current target grid area is located, which is used to evaluate the distribution of local power supply repair resources according to the actual local production needs. Assuming that the preset power outage time threshold of a certain place is set to 5 hours, the evaluation results are as follows:

[0132] If the average power outage duration per household in the target grid area is greater than the upper limit of the emergency repair time in the target grid area, and the evaluation difference between the average power outage duration per household in the target grid area and the upper limit of the emergency repair time in the target grid area is greater than or equal to the preset power outage time threshold, it is expressed as follows:

[0133] tFail,avg >T mp , and (T Fail,avg -T mp )≥5

[0134] It is considered that the average power outage time per household in the area is too long, and the power supply reliability of the target grid area is determined to be seriously insufficient. The problem of serious insufficient power supply reliability in the area is pushed back to the power grid construction management party.

[0135] If the average power outage duration per household in the target grid area is greater than the upper limit of the emergency repair time in the target grid area, and the evaluation difference between the average power outage duration per household in the target grid area and the upper limit of the emergency repair time in the target grid area is less than the preset power outage time threshold, it is expressed as follows:

[0136] t Fail,avg >T mp , and (T Fail,avg -T mp )<5

[0137] This means that the average power outage duration per household in the target grid area exceeds the upper limit of the emergency repair time set for the area, but the excess time does not reach 5 hours, that is, there is a certain degree of insufficient power supply reliability in the area. It is determined that the power supply reliability in the target grid area is relatively insufficient, which can be solved by adjusting the allocation of power supply service emergency repair resources.

[0138] Optionally, after the evaluation difference is less than a preset power outage time threshold and it is determined that the power supply reliability of the target grid area is relatively insufficient, the method further includes:

[0139] Calculating a weight difference between the preset power outage time threshold and the evaluation difference, and using the weight difference as a weight value for power supply service command resource configuration in the target grid area;

[0140] According to the power supply service command resource configuration weight value, the priority of the power supply service emergency repair resource configuration of the target grid area is adjusted, wherein the higher the power supply service command resource configuration weight value, the lower the priority of the power supply service emergency repair resource configuration of the target grid area.

[0141] For example, the weight difference is set to t Fail , calculated by the following expression:

[0142] t Fail =5-(t Fail,avg -T mp )

[0143] The calculated weight difference is used as the weight value of the power supply service command resource configuration in the area and fed back to the power supply service emergency repair resource configuration department in the target grid area. The larger the weight value is, the higher the power supply reliability in the area is, and the lower the priority of power supply service emergency repair resource configuration in the area is.

[0144] This application achieves reasonable allocation of emergency repair resources by calculating the weight difference between the power outage time threshold and the evaluation difference, and uses the weight difference as the standard for adjusting the priority of power supply service emergency repair resource configuration in the target grid area, which can provide the data support required for the formulation of resource scheduling strategies in the power supply service command process.

[0145] Optionally, the method further includes:

[0146] When the comparison result is that the average power outage duration per household in the target grid area is less than or equal to the upper limit of the emergency repair time in the target grid area, it is determined that the average power outage duration per household in the target grid area has no effect on the power supply reliability of the target grid area.

[0147] Exemplarily, the expression is as follows: If t Fail,avg ≤T mp , then the value of the average household power outage duration indicator item in the target grid area is 0, that is, it is considered that the impact of the average household power outage duration in the target grid area on the power supply reliability of the area can be ignored.

[0148] The present invention simplifies the traditional power supply reliability evaluation method and data dimension by taking the average power outage duration per household as the power supply reliability evaluation index of the target grid area, and has high feasibility. At the same time, based on the method provided by the present invention to realize the efficient evaluation of the power supply reliability of the target grid area, it provides data and model support for the configuration strategy of the power supply service command and emergency repair resources in the area, so that the superior power supply service command decision-making department can effectively configure the emergency repair resources according to the power supply reliability of each area.

[0149] Embodiment 2:

[0150] The present invention based on the same inventive concept also provides a power supply reliability evaluation device for power supply service command, comprising:

[0151] A data acquisition module, used to obtain historical power outage records of transformers in a target grid area;

[0152] A power outage duration acquisition module, used to calculate the average power outage duration per household in the target grid area based on the historical power outage records of the transformer;

[0153] A repair time acquisition module, used to acquire the load density of the target grid area and obtain the upper limit of the repair time of the target grid area;

[0154] The result evaluation module is used to compare the average power outage duration per household in the target grid and the upper limit of the emergency repair time of the target grid to obtain a comparison result; and determine the power supply reliability evaluation result of the target grid according to the comparison result.

[0155] Optionally, the emergency repair time acquisition module includes:

[0156] A region type acquisition unit, configured to obtain the region type of the target grid region based on the load density of the target grid region and using a preset correspondence relationship between the load density and the region type;

[0157] The emergency repair time acquisition unit is used to obtain a fault emergency repair time acceptance coefficient corresponding to the area type according to the area type of the target grid area, and confirm the fault emergency repair time acceptance coefficient as the upper limit of the fault emergency repair time of the target grid area.

[0158] Optionally, the power outage duration acquisition module includes:

[0159] A first duration acquisition unit, configured to obtain the number of power outages of each transformer and the duration of each power outage based on the acquired historical power outage records of the transformer;

[0160] A second duration acquisition unit is used to sum the power outage duration of each transformer for each transformer to obtain a total power outage duration of the transformer;

[0161] A third duration acquisition unit is used to sum the total power outage duration of the transformer to obtain the power outage duration of the target grid area;

[0162] The fourth duration acquisition unit is used to use the power outage duration of the target grid and the number of transformers to obtain the average power outage duration of the transformers in the target grid area, and determine the average power outage duration of the transformers in the target grid area as the average power outage duration per household in the target grid area.

[0163] Optionally, the second duration acquisition unit is specifically configured to sum the duration of each power outage of the transformer through the following expression to obtain a total power outage duration of the transformer:

[0164]

[0165] Where, T pause,sum is the total power outage duration of the transformer; i is the i-th power outage of the transformer, i=1,…,k; k is the number of power outages of the transformer; T pause,i is the power outage duration of the transformer during the i-th power outage.

[0166] Optionally, the fourth duration acquisition unit is specifically configured to obtain an average power outage duration of transformers in the target grid area through the following expression based on the power outage duration and the number of transformers in the target grid area:

[0167]

[0168] Where, t Fail,avg is the average power outage duration of the transformer in the target grid area; j is the jth line in the target grid area; n is the number of lines in the target grid area; are the number of public and dedicated transformers connected to the jth line in the target grid area; t Fail,j is the total power outage duration of all transformers on the j-th line in the target grid area.

[0169] Optionally, the result evaluation module includes:

[0170] An evaluation difference acquisition unit, configured to calculate an evaluation difference between the average power outage duration per household in the target grid area and the upper limit of the emergency repair time in the target grid area when the comparison result is that the average power outage duration per household in the target grid area is greater than the upper limit of the emergency repair time in the target grid area;

[0171] A first evaluation unit, configured to determine that the power supply reliability of the target grid area is seriously insufficient if the evaluation difference is greater than or equal to a preset power outage time threshold;

[0172] The second evaluation unit is configured to determine that the power supply reliability of the target grid area is relatively insufficient if the difference is less than the power outage time threshold.

[0173] Optionally, also include:

[0174] A repair resource configuration unit, used to calculate a weight difference between the preset power outage time threshold and the evaluation difference, and use the weight difference as a power supply service command resource configuration weight value of the target grid area;

[0175] According to the power supply service command resource configuration weight value, the priority of the power supply service emergency repair resource configuration of the target grid area is adjusted, wherein the higher the power supply service command resource configuration weight value, the lower the priority of the power supply service emergency repair resource configuration of the target grid area.

[0176] Optionally, the result evaluation module further includes:

[0177] The third evaluation unit is used to determine that the average power outage duration per household in the target grid area has no impact on the power supply reliability of the target grid area when the comparison result is that the average power outage duration per household in the target grid area is less than or equal to the upper limit of the emergency repair time of the target grid area.

[0178] Optionally, the historical power outage records of the transformer acquired by the data acquisition module specifically include:

[0179] The transformer fault type, the transformer number, the transformer fault start time, the transformer fault end time, the grid number to which the transformer belongs, the duration of each transformer power outage and the number of transformer power outages; wherein the duration of each transformer power outage is obtained from the transformer fault start time and the transformer fault end time, and the number of transformer power outages is obtained from the transformer number, the transformer fault start time and the transformer fault end time.

[0180] Embodiment 3:

[0181] like Figure 4 As shown, the present invention also provides an electronic device, which may be a computer device, a single-chip device, an intelligent mobile device, etc. The electronic device in this embodiment may include a processor, a memory, a transceiver component, etc. The memory, the processor, and the transceiver component are connected via a bus; the memory may be used to store an execution program, and an exemplary execution program may include instructions; the processor is used to execute the instructions stored in the memory. The memory may also be used to store data, which may be called and / or modified when the instructions are executed.

[0182] The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. It is the computing core and control core of the terminal, which is suitable for implementing one or more instructions, specifically suitable for loading and executing one or more instructions in a storage medium to implement corresponding method flows or corresponding functions, so as to implement the steps of a power supply reliability evaluation method for power supply service command in the above-mentioned embodiment.

[0183] Embodiment 4:

[0184] Based on the same inventive concept, the present invention also provides a readable storage medium, specifically an electronic device readable storage medium (Memory), which is a memory device in an electronic device for storing programs and data. It can be understood that the storage medium here can include both built-in storage media in electronic devices and, of course, extended storage media supported by electronic devices. The storage medium provides a storage space, which stores the operating system of the terminal. In addition, one or more instructions suitable for being loaded and executed by a processor are also stored in the storage space, and these instructions can be one or more execution programs (including program codes). It should be noted that the storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. The processor loads and executes one or more instructions stored in the storage medium, which can implement the steps of a power supply reliability evaluation method for power supply service command in the above embodiment.

[0185] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0186] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0187] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1A function specified in one or more boxes.

[0188] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0189] The above are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of the claims of the present invention to be approved.

Claims

1. A power supply reliability evaluation method for power supply service command, characterized in that: include: Obtain historical power outage records of transformers in the target grid area; Based on the historical power outage records of the transformer, calculate the average power outage duration per household in the target grid area; Based on the load density of the target grid area, calculating the upper limit of the fault repair time of the target grid area; The average power outage duration per household in the target grid area and the upper limit of the fault repair time in the target grid area are compared to obtain a comparison result; and a power supply reliability evaluation result of the target grid area is determined according to the comparison result.

2. The method according to claim 1, characterized in that The calculating the upper limit of the emergency repair time of the target grid based on the load density of the target grid area includes: Based on the load density of the target grid area, the area type of the target grid area is obtained by using a preset correspondence relationship between the load density and the area type; According to the area type of the target grid area, a fault repair time acceptance coefficient corresponding to the area type is obtained, and the fault repair time acceptance coefficient is confirmed as the upper limit of the fault repair time of the target grid area.

3. The method according to claim 1, characterized in that The calculating the average power outage duration per household in the target grid area based on the historical power outage record of the transformer includes: Based on the acquired historical power outage records of the transformer, the number of power outages of each transformer and the duration of each power outage are obtained; For each transformer, summing up the duration of each power outage of the transformer to obtain a total power outage duration of the transformer; Sum the total power outage duration of the transformer to obtain the power outage duration of the target grid area; Based on the power outage duration and the number of transformers in the target grid area, an average power outage duration of transformers in the target grid area is obtained, and the average power outage duration of transformers in the target grid area is determined as the average power outage duration per household in the target grid area.

4. The method according to claim 3, characterized in that The process of summing up the duration of each power outage of the transformer to obtain the total power outage duration of the transformer satisfies the following expression: Where, T pause,sum is the total power outage duration of the transformer; i is the i-th power outage of the transformer, i=1,…,k; k is the number of power outages of the transformer; T pause,i is the power outage duration of the transformer during the i-th power outage.

5. The method according to claim 3, characterized in that The process of obtaining the average power outage duration of the transformers in the target grid area based on the power outage duration and the number of transformers in the target grid area satisfies the following expression: Where, t Fail,avg is the average power outage duration of the transformer in the target grid area; j is the jth line in the target grid area, j=1,…,n; n is the number of lines in the target grid area; are the number of public and dedicated transformers connected to the jth line in the target grid area; t Fail,j is the total power outage duration of all transformers on the j-th line in the target grid area.

6. The method according to claim 1, characterized in that Determining the power supply reliability evaluation result of the target grid area according to the comparison result includes: When the comparison result is that the average power outage duration per household in the target grid area is longer than the upper limit of the emergency repair time in the target grid area, calculating the evaluation difference between the average power outage duration per household in the target grid area and the upper limit of the emergency repair time in the target grid area; If the evaluation difference is greater than or equal to a preset power outage time threshold, it is determined that the power supply reliability of the target grid area is seriously insufficient; If the evaluation difference is less than the power outage time threshold, it is determined that the power supply reliability of the target grid area is relatively insufficient.

7. The method according to claim 6, characterized in that After the evaluation difference is less than a preset power outage time threshold and it is determined that the power supply reliability of the target grid area is relatively insufficient, the method further includes: Calculating a weight difference between the preset power outage time threshold and the evaluation difference, and using the weight difference as a weight value for power supply service command resource configuration in the target grid area; According to the power supply service command resource configuration weight value, the priority of the power supply service emergency repair resource configuration of the target grid area is adjusted, wherein the higher the power supply service command resource configuration weight value, the lower the priority of the power supply service emergency repair resource configuration of the target grid area.

8. The method according to claim 6, characterized in that The method further comprises: When the comparison result is that the average power outage duration per household in the target grid area is less than or equal to the upper limit of the emergency repair time in the target grid area, it is determined that the average power outage duration per household in the target grid area has no effect on the power supply reliability of the target grid area.

9. The method according to claim 3, characterized in that The historical power outage records of the transformer include: The transformer fault type, the transformer number, the transformer fault start time, the transformer fault end time, the grid number to which the transformer belongs, the duration of each transformer power outage and the number of transformer power outages; wherein the duration of each transformer power outage is obtained from the transformer fault start time and the transformer fault end time, and the number of transformer power outages is obtained from the transformer number, the transformer fault start time and the transformer fault end time.

10. A power supply reliability evaluation device for power supply service command, characterized in that: include: A data acquisition module, used to obtain historical power outage records of transformers in a target grid area; A power outage duration acquisition module, used to calculate the average power outage duration per household in the target grid area based on the historical power outage records of the transformer; A repair time acquisition module, used to acquire the load density of the target grid area and obtain the upper limit of the repair time of the target grid area; The result evaluation module is used to compare the average power outage duration per household in the target grid and the upper limit of the emergency repair time of the target grid to obtain a comparison result; and determine the power supply reliability evaluation result of the target grid according to the comparison result.

11. The device according to claim 10, characterized in that The emergency repair time acquisition module includes: A region type acquisition unit, configured to obtain the region type of the target grid region based on the load density of the target grid region and using a preset correspondence relationship between the load density and the region type; The emergency repair time acquisition unit is used to obtain a fault emergency repair time acceptance coefficient corresponding to the area type according to the area type of the target grid area, and confirm the fault emergency repair time acceptance coefficient as the upper limit of the fault emergency repair time of the target grid area.

12. The device according to claim 10, characterized in that The power outage duration acquisition module includes: A first duration acquisition unit, configured to obtain the number of power outages of each transformer and the duration of each power outage based on the acquired historical power outage records of the transformer; A second duration acquisition unit is used to sum the power outage duration of each transformer for each transformer to obtain a total power outage duration of the transformer; A third duration acquisition unit is used to sum the total power outage duration of the transformer to obtain the power outage duration of the target grid area; The fourth duration acquisition unit is used to use the power outage duration of the target grid and the number of transformers to obtain the average power outage duration of the transformers in the target grid area, and determine the average power outage duration of the transformers in the target grid area as the average power outage duration per household in the target grid area.

13. The device according to claim 12, characterized in that The second duration acquisition unit is specifically configured to sum the duration of each power outage of the transformer through the following expression to obtain the total power outage duration of the transformer: Where, T pause,sum is the total power outage duration of the transformer; i is the i-th power outage of the transformer, i=1,…,k; k is the number of power outages of the transformer; T pause,i is the power outage duration of the transformer during the i-th power outage.

14. The device according to claim 12, characterized in that The fourth duration acquisition unit is specifically configured to obtain an average power outage duration of transformers in the target grid area through the following expression based on the power outage duration and the number of transformers in the target grid area: Where, t Fail,avg is the average power outage duration of the transformer in the target grid area; j is the jth line in the target grid area; n is the number of lines in the target grid area; are the number of public and dedicated transformers connected to the jth line in the target grid area; t Fail,j is the total power outage duration of all transformers on the j-th line in the target grid area.

15. The device according to claim 10, characterized in that The result evaluation module comprises: An evaluation difference acquisition unit, configured to calculate an evaluation difference between the average power outage duration per household in the target grid area and the upper limit of the emergency repair time in the target grid area when the comparison result is that the average power outage duration per household in the target grid area is greater than the upper limit of the emergency repair time in the target grid area; A first evaluation unit, configured to determine that the power supply reliability of the target grid area is seriously insufficient if the evaluation difference is greater than or equal to a preset power outage time threshold; The second evaluation unit is configured to determine that the power supply reliability of the target grid area is relatively insufficient if the difference is less than the power outage time threshold.

16. The device according to claim 15, characterized in that Also includes: A repair resource configuration unit, used to calculate a weight difference between the preset power outage time threshold and the evaluation difference, and use the weight difference as a power supply service command resource configuration weight value of the target grid area; According to the power supply service command resource configuration weight value, the priority of the power supply service emergency repair resource configuration of the target grid area is adjusted, wherein the higher the power supply service command resource configuration weight value, the lower the priority of the power supply service emergency repair resource configuration of the target grid area.

17. The device according to claim 15, characterized in that The result evaluation module also includes: The third evaluation unit is used to determine that the average power outage duration per household in the target grid area has no impact on the power supply reliability of the target grid area when the comparison result is that the average power outage duration per household in the target grid area is less than or equal to the upper limit of the emergency repair time of the target grid area.

18. The device according to claim 12, characterized in that The historical power outage records of the transformer acquired by the data acquisition module specifically include: The transformer fault type, the transformer number, the transformer fault start time, the transformer fault end time, the grid number to which the transformer belongs, the duration of each transformer power outage and the number of transformer power outages; wherein the duration of each transformer power outage is obtained from the transformer fault start time and the transformer fault end time, and the number of transformer power outages is obtained from the transformer number, the transformer fault start time and the transformer fault end time.

19. An electronic device, characterized in that: include: at least one processor and memory; The memory and the processor are connected via a bus; The memory is used to store one or more programs; When the one or more programs are executed by the at least one processor, the power supply reliability evaluation method for power supply service command as described in any one of claims 1 to 9 is implemented.

20. A readable storage medium, characterized in that: An execution program is stored thereon, and when the execution program is executed, a power supply reliability evaluation method for power supply service command as described in any one of claims 1 to 9 is implemented.

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