Mobile emergency equipment scheduling strategy determination method and system applied to power plant

Abstract

The invention provides a mobile emergency equipment scheduling strategy determination method and system applied to a power plant, and relates to the technical field of emergency equipment scheduling, and the method comprises the steps: obtaining a work log of each target power grid in the power plant, carrying out the analysis of the work log, and determining the fault information of the corresponding target power grid; determining a power-losing load caused by the fault information of each target power grid based on a preset index mechanism; according to the power-losing load of each target power grid and the output load borne by the target power grid, setting a power supplementing priority for the corresponding target power grid, and determining the to-be-used number of mobile emergency equipment of the corresponding target power grid; and when the sum of all the to-be-used numbers is greater than the preset deployment number, carrying out number scheduling on the mobile emergency equipment according to the electricity supplement priority of each target power grid, so as to improve the utilization rate of the mobile emergency equipment and efficiently maintain faults of the power plant under the condition that the number of the mobile emergency equipment is limited. And the mobile emergency equipment is reasonably allocated.

Description

Technical Field

[0001] The present invention relates to the technical field of emergency equipment dispatching, and in particular to a method and system for determining a dispatching strategy for mobile emergency equipment in a power plant. Background Art

[0002] The distribution system of modern power plants is becoming increasingly large-scale and complex, which means that sudden failures caused by human and natural factors are inevitable. With the development of power supply technology in power plants, backup power supplies, distributed power supplies, and charging stations can all be used as power sources to supply power to the fault point when a fault occurs. Mobile emergency equipment has the characteristics of mobility and safety, and its role in the emergency repair of power plant faults is becoming increasingly significant. However, the point of occurrence of the fault is variable, so the best solution for the dispatch of the corresponding mobile emergency equipment is also uncertain. The number of mobile emergency equipment is limited, and the flexibility of capacity configuration is not high. The reasonable deployment of mobile emergency equipment is an important issue that needs to be urgently solved in the emergency repair of power plant power grid faults. Summary of the invention

[0003] In view of the above problems existing in the prior art, the present invention is proposed.

[0004] Therefore, the present invention provides a method for determining a scheduling strategy for mobile emergency equipment in power plants. By determining the fault information of each target power plant and the power loss load caused by the fault information, the power replenishment priority is set corresponding to the target power grid, and the number of mobile emergency equipment to be used is determined. When the number to be used is insufficient, the mobile emergency equipment is scheduled to improve the utilization rate of the mobile emergency equipment when the number of mobile emergency equipment is limited, efficiently repair power plant failures, and reasonably deploy mobile emergency equipment.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions, a method for determining a scheduling strategy for mobile emergency equipment in a power plant, comprising: obtaining work logs of each target power grid in the power plant, and analyzing the work logs to determine the fault information of the corresponding target power grid; determining the power loss load caused by the fault information of each target power grid based on a preset indicator mechanism; setting a power replenishment priority for the corresponding target power grid according to the power loss load of each target power grid and the output load carried by the target power grid, and determining the number of mobile emergency equipment to be used in the corresponding target power grid; when the sum of all the numbers to be used is greater than the preset deployment number, the number of mobile emergency equipment is scheduled according to the power replenishment priority of each target power grid.

[0006] As a preferred solution of the method for determining the dispatching strategy of mobile emergency equipment in a power plant according to the present invention, the work log is analyzed, including identifying several representative identifiers existing in the work log according to an identifier recognition mechanism;

[0007] Each representative identifier is referenced to the identifier-description mapping table to extract several valid descriptions of the corresponding target power grid.

[0008] As a preferred solution of the method for determining the dispatching strategy of mobile emergency equipment in a power plant described in the present invention, the determining the fault information of the corresponding target power grid includes obtaining the local environment of different designated nodes in the corresponding target power grid, the node attributes of different designated nodes in the corresponding target power grid, and the damage to the connectivity of the corresponding target power grid after the different designated nodes are deleted, based on several valid descriptions of each target power grid;

[0009] According to the load conditions of each designated node in the corresponding target power grid during the historical power generation process, the load level of the corresponding designated node is obtained;

[0010] Establish the evaluation matrix X corresponding to the target power grid N×4 :

[0011]

[0012] Among them, P ab is the evaluation value of the a-th designated node under the same target power grid based on the b-th evaluation index, where the value range of a is [1, N], N is the total number of designated nodes under the corresponding target power grid; the value range of b is [1, 4], and when b = 1, it is related to the local environment, when b = 2, it is related to the node attribute, when b = 3, it is related to the damage situation, and when b = 4, it is related to the load level;

[0013] Based on the standard value of each evaluation index, the standard deviation of each column vector in the corresponding evaluation matrix is ​​calculated, and then the coefficient of variation of the corresponding column is determined;

[0014] Based on the row vector of each row and the coefficient of variation and standard value of each evaluation index in the corresponding row vector, the node fault corresponding to the specified node is determined;

[0015] Based on the node failures of all corresponding designated nodes, the failure information of the corresponding target power grid is obtained.

[0016] As a preferred solution of the method for determining the dispatching strategy of mobile emergency equipment in a power plant according to the present invention, wherein: the setting of the power replenishment priority includes, according to the fault information, determining the first power-losing load of the designated node of each target power grid within the designated operation cycle;

[0017] Determine the urgency of power failure load corresponding to each designated node in the target power grid;

[0018]

[0019] Among them, r11 represents the loss coefficient of the ath designated node in the corresponding target power grid during peak power consumption; r12 represents the loss coefficient of the ath designated node in the corresponding target power grid during normal power consumption; r13 represents the loss coefficient of the ath designated node in the corresponding target power grid during off-peak power consumption; q1 1,b represents the weight of the bth evaluation index during peak power consumption; q1 2,b Indicates the weight of the bth evaluation index in general electricity consumption; q1 3,b represents the weight of the bth evaluation index during off-peak electricity consumption; t a1 ∈[t01,t02) represents the time period of peak power consumption; t a1 ∈[t02,t03) represents the time period of general electricity consumption; t a1 ∈[t03,t04] represents the time period of low electricity consumption; P0 ab Indicates the standard value of the a-th designated node under the same target power grid based on the b-th evaluation index; F0 1,ab represents the value attenuation function of the a-th designated node under the same target power grid based on the b-th evaluation index during peak power consumption; F0 2,ab represents the value attenuation function of the a-th designated node under the same target power grid based on the b-th evaluation index under normal power consumption; F0 3,ab It represents the value attenuation function of the a-th designated node under the same target power grid based on the b-th evaluation index during off-peak power consumption;

[0020] According to the first power failure load and the power failure load urgency of the designated node in each target power grid, the node function H(D a ,S a ,Q a ), where D a represents the first power failure load of the ath designated node in the target power grid; Q a represents the node weight of the ath designated node in the corresponding target power grid;

[0021] According to the node function H(D a ,S a ,Q a ), set the node priority to the corresponding specified node.

[0022] As a preferred solution of the method for determining the dispatching strategy of mobile emergency equipment in a power plant described in the present invention, wherein: setting the node priority to the corresponding designated node includes obtaining the node priority corresponding to Q from the weight-standard mapping table, respectively a Matched comparative power failure load B01 and comparative urgency B02;

[0023] If B01 <D a or B02 <Sa When , the corresponding designated node is determined to be a faulty node;

[0024] If B01≥D a and B02≥S a When Determine the corresponding designated node as a random analysis node, where a1 and a2 are the corresponding calculation weights and a3 is the set threshold; if Determine the corresponding designated node as a normal node; Determine the corresponding designated node as a normal node;

[0025] According to the work log of each target power grid, the backbone grid of the corresponding target power grid is obtained, the fault nodes existing on the corresponding backbone grid are set to the first priority, the random analysis nodes existing on the backbone grid are set to the second priority, the fault nodes not existing on the backbone grid are set to the third priority, and the remaining nodes are set to the fourth priority.

[0026] As a preferred solution of a method for determining a dispatching strategy for mobile emergency equipment in a power plant according to the present invention, wherein: the setting of the power supply priority for the corresponding target power grid includes obtaining the maximum power loss load urgency of all fault nodes involved in the corresponding target power grid, the first total power loss load Z1 of all fault nodes, and the second total power loss load Z2 of all non-fault nodes involved in the corresponding target power grid;

[0027] Combined with the output load C1 of the corresponding target power grid and the priority setting results of all target power grids, determine the emergency value W1 of the power replenishment of the corresponding target power grid;

[0028]

[0029] Where m represents the number of fault nodes in the corresponding target power grid; S m represents the power failure load urgency of the mth fault node; S1 represents the power failure load urgency of the first fault node; S2 represents the power failure load urgency of the second fault node; maxl represents the historical maximum power failure load urgency of the corresponding target power grid; C0 represents the total output load of all target power grids involved in the power plant; b1 represents the calculation weight based on the power failure load; b2 represents the calculation weight based on the power failure load urgency; b3 represents the calculation weight based on the output load;

[0030] Based on the value-priority mapping table, the priority of power replenishment of the corresponding target power grid is obtained;

[0031] The calculation weight is obtained by analyzing the priority setting results of all target power grids according to the result analysis model.

[0032] As a preferred solution of a method for determining a scheduling strategy for mobile emergency equipment in a power plant according to the present invention, where: when the sum of all the quantities to be used is greater than the preset deployment quantity, the quantity scheduling of the mobile emergency equipment is performed according to the power replenishment priority of each target power grid, including:

[0033] Perform a first sorting on the target power grids according to all the power replenishment priorities;

[0034] Determine the first power grid that allows power generation suspension according to the power generation setting conditions of the power plant;

[0035] If the quantity of the first power grid is 0, it is determined that all target power grids need to generate power, and obtain the minimum emergency quantity min0 corresponding to all target power grids;

[0036] When m1×min0 < y01, distribute to different target power grids according to the minimum emergency quantity min0 respectively. After power replenishment for a preset emergency time, transfer the movable equipment allowed to move from the power grid with the lowest power replenishment priority to the power grid with a higher priority and in need of continuous power replenishment. Wherein, y01 represents the preset deployment quantity; m1 is the quantity of power grids that need to generate power;

[0037] If m1×min0 > y01, perform priority scheduling in sequence according to the power replenishment priority of each target power grid to the target power grid with the highest power replenishment priority and according to the required quantity to be used;

[0038] The determination of the quantity to be used of the mobile emergency equipment for the corresponding target power grid includes obtaining the power loss load of the corresponding target power grid and the load supply difference of the target power grid for carrying the output load; obtaining the supplementary load of each mobile emergency equipment; and determining the quantity to be used of the mobile emergency equipment for the corresponding target power grid based on the load supply difference and the supplementary load.

[0039] As a preferred solution of a system for determining a scheduling strategy for mobile emergency equipment in a power plant according to the present invention, where: it includes a fault information acquisition module, a power loss load determination module, an equipment quantity determination module, and an equipment scheduling module;

[0040] Fault information acquisition module: Acquire the work logs of each target power grid in the power plant, and analyze the work logs to determine the fault information of the corresponding target power grid;

[0041] Power loss load determination module: Determine the power loss load caused by the fault information of each target power grid based on a preset index mechanism;

[0042] Equipment quantity determination module: according to the power loss load of each target power grid and the output load carried by the target power grid, set the power supply priority for the corresponding target power grid, and determine the number of mobile emergency equipment to be used in the corresponding target power grid;

[0043] Equipment scheduling module: When the sum of all the quantities to be used is greater than the preset deployment quantity, the quantity of mobile emergency equipment is scheduled according to the power replenishment priority of each target power grid.

[0044] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and is characterized in that when the processor executes the computer program, the steps of a method described in any one of the methods for determining a dispatching strategy for mobile emergency equipment in a power plant are implemented.

[0045] A computer-readable storage medium having a computer program stored thereon, characterized in that when the computer program is executed by a processor, the steps of a method described in any one of the methods for determining a dispatching strategy for mobile emergency equipment in a power plant are implemented.

[0046] Beneficial effects of the present invention: The present invention determines the fault information of each target power plant and the power loss load caused by the fault information, sets the power replenishment priority corresponding to the target power grid, determines the number of mobile emergency equipment to be used, and dispatches the mobile emergency equipment when the number to be used is insufficient, so as to improve the utilization rate of mobile emergency equipment when the number of mobile emergency equipment is limited, efficiently respond to power plant failures, and reasonably deploy mobile emergency equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0048] Figure 1 A schematic flow chart of a method for determining a dispatching strategy for mobile emergency equipment in a power plant provided by an embodiment of the present invention.

[0049] Figure 2 A schematic diagram of a system for determining a dispatching strategy for mobile emergency equipment in a power plant is provided as a structural diagram according to an embodiment of the present invention. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0051] Example 1

[0052] Reference Figure 1 , which is the first embodiment of the present invention, and provides a method for determining a dispatching strategy for mobile emergency equipment in a power plant, comprising:

[0053] Step 1: Obtain the work logs of each target power grid in the power plant, and analyze the work logs to determine the fault information of the corresponding target power grid;

[0054] Step 2: Determine the power loss load caused by the fault information of each target power grid based on the preset indicator mechanism;

[0055] Step 3: According to the power loss load of each target power grid and the output load carried by the target power grid, set the power replenishment priority for the corresponding target power grid, and determine the number of mobile emergency equipment to be used in the corresponding target power grid;

[0056] Step 4: When the sum of all the quantities to be used is greater than the preset deployment quantity, the quantity of mobile emergency equipment is dispatched according to the power replenishment priority of each target power grid.

[0057] The work log records the environment of the target power grid node, node attributes, the damage to the connectivity of the corresponding target network after the node is deleted, the load condition of the node, and the backbone network of the target power grid. For example, the environment is the ambient temperature, ambient humidity, and the corresponding node position. The node attributes are the voltage and current of the node, the node's previous-level node, the same-level node, and the next-level node. The damage condition is the load condition that affects other nodes, the impact range of the node failure, and the load condition is the amount of charge calculated by the voltage and current flowing through the node.

[0058] The fault information includes the location of the fault node, the power loss load of the fault node, and the connectivity damage of the fault node.

[0059] The corresponding effective description is obtained by analyzing the identifiers recorded in the work log, and the evaluation index of the target power grid node is obtained according to the effective description. The evaluation index value and coefficient of variation obtained according to the effective description are compared with the corresponding standard value and standard coefficient of variation, and the faulty node and the faulty index in the evaluation index of the faulty node are determined. The fault information of the node is generated, and the fault information of the target power grid is comprehensively obtained.

[0060] The preset indicator mechanism means setting the standard power loss load of different nodes in the target power grid under different standard faults, and then determining the power loss load under the actual fault information.

[0061] The power-off load refers to the load whose output load becomes lower after a fault occurs in the target power grid.

[0062] The carried output load refers to the load actually carried by the target power grid without any fault.

[0063] The power supply priority is determined by the urgency of the power-off load, the output load and the remaining power supply time of the corresponding fault. Mobile emergency equipment is deployed according to the power supply priority.

[0064] Mobile emergency equipment refers to various types of emergency power supply vehicles.

[0065] The number to be used is the appropriate number of mobile emergency devices required by the corresponding power grid determined by the urgency of the power failure load, the priority of power replenishment and the fault information.

[0066] The preset deployment quantity refers to the quantity preset according to the structure of the target power grid.

[0067] Quantity dispatching is to adjust the quantity or position of mobile emergency equipment according to the priority of waiting for power replenishment, remaining time and power-on time when the number of equipment to be used is greater than the preset number. For example, grid 1 needs 10 equipment and grid 2 needs 8 equipment, but the current preset deployment quantity is 15, and at this time, the priority of grid 1 is greater than that of grid 2, so 10 equipment will be configured to grid 1 first, and then 5 equipment will be configured to grid 2.

[0068] The working principle and beneficial effects of the above technical solution are: by determining the fault information of each target power plant and the power loss load caused by the fault information, setting the power replenishment priority corresponding to the target power grid, determining the number of mobile emergency equipment to be used, and dispatching the mobile emergency equipment when the number to be used is insufficient, so as to achieve the improvement of the utilization rate of mobile emergency equipment when the number of mobile emergency equipment is limited, efficiently respond to power plant failures, and reasonably deploy mobile emergency equipment.

[0069] The embodiment of the present invention provides a method for determining a dispatching strategy for mobile emergency equipment in a power plant, which obtains work logs of each target power grid in the power plant and analyzes the work logs, including:

[0070] According to the identification mechanism, identifying several representative identifications present in the work log;

[0071] Each representative identifier is referenced to the identifier-description mapping table to extract several valid descriptions of the corresponding target power grid.

[0072] The identification recognition mechanism is a mechanism for identifying the significant identification of the target power grid in the work log after a fault occurs. The significant identification for node failure is the local environment of the node, the node attributes and the damage to the connectivity of the target power grid, and the insignificant identification is the execution function of the node.

[0073] The representative identifier is an identifier for obtaining the local environment of the node, the node attributes and the connectivity damage status of the target power grid.

[0074] The identifier-description mapping table is a description of the specific meaning of each representative identifier obtained from the identifier recognition mechanism and the corresponding possible fault information.

[0075] The effective description refers to the effective information in the node information for fault repair.

[0076] The working principle and beneficial effect of the above technical solution are: determining the valid information of the corresponding target power grid according to the identification in the work log of the corresponding target power grid, and screening the possible fault information of the target power grid.

[0077] An embodiment of the present invention provides a method for determining a dispatching strategy for mobile emergency equipment in a power plant, which determines fault information of a corresponding target power grid, including:

[0078] According to several valid descriptions of each target power grid, the local environment of different designated nodes in the corresponding target power grid, the node attributes of different designated nodes in the corresponding target power grid, and the damage to the connectivity of the corresponding target power grid after the different designated nodes are deleted are obtained;

[0079] At the same time, according to the load conditions of each designated node in the corresponding target power grid during the historical power generation process, the load level of the corresponding designated node is obtained;

[0080] Establish the evaluation matrix X corresponding to the target network node N×4 :

[0081]

[0082] Among them, P ab is the bth evaluation index of the ath designated node under the same target power grid, where the value range of a is [1, N], N is the total number of designated nodes under the corresponding target power grid; the value range of b is [1, 4], and when b = 1, it is related to the local environment, when b = 2, it is related to the node attribute, when b = 3, it is related to the damage situation, and when b = 4, it is related to the load level;

[0083] Based on the standard value of each evaluation indicator, the standard deviation of each column vector in the corresponding evaluation matrix is ​​calculated, and then the coefficient of variation of the corresponding column is determined;

[0084] Based on the row vector of each row and the coefficient of variation and standard value of each evaluation index in the corresponding row vector, the node fault corresponding to the specified node is determined;

[0085] Based on the node failures of all corresponding designated nodes, the failure information of the corresponding target power grid is obtained.

[0086] The designated node is the connection point between branches and branches, or between trunk lines and branches in the target power grid structure.

[0087] The standard value is the target power grid being in normal working condition and is the working value of the corresponding mode of the corresponding rating indicator of each power grid node.

[0088] The standard value of the evaluation index is determined according to the working mode of the target power grid.

[0089] The standard deviation is the corresponding calculation between the column vectors of the evaluation matrix under normal working conditions. Represents the average value of the bth evaluation index.

[0090] The relevant calculation of the coefficient of variation is,

[0091] If the difference between the coefficient of variation under the evaluation index and the corresponding coefficient of variation calculated by the standard value and the row vector of each row and the standard value exceeds the set error rate, the evaluation index corresponding to the coefficient of variation and the standard value exceeding the set error rate is a node failure of the specified node.

[0092] The damage to the connectivity of the target power grid refers to the degree of impact of a specified node on surrounding nodes and even the backbone grid after it is deleted. The corresponding impact is that the entire target power grid is in a power outage or abnormal working state after the node is deleted. After the node is deleted, some areas of the target power grid can work normally, but the next-level node connected to the node cannot work normally. The node itself is affected after deletion. The degree of impact is the range of the impact of the node deletion and the range of normal operation of the target power grid.

[0093] The load-carrying condition refers to the situation in which each designated node has different load outputs through the designated node due to different working modes in the historical process.

[0094] The evaluation matrix consists of the evaluation values ​​corresponding to the nodes constituting the target power grid under the set evaluation indicators.

[0095] The load level is based on the importance of the power load and the loss or impact that power interruption will cause to actual life. The first-level load is the load when power interruption will cause casualties or major equipment damage or poisoning, explosion, fire, etc., as well as the load in particularly important places where power interruption is not allowed. The second-level load is when power interruption will cause great economic losses and the power interruption will affect the normal work of more important electricity users. The third-level load is not a first-level or second-level load.

[0096] The evaluation indicators include the local environment, node attributes, damage conditions and load levels of the specified nodes.

[0097] Node failure occurs when the current passing through the node and the voltage across the node deviate from the set standards in the set working mode.

[0098] The process of obtaining the fault information of the corresponding target power grid is that each evaluation index of the power grid node has a corresponding standard index and the actual evaluation value obtained from the evaluation matrix. The standard deviation of each column vector in the corresponding evaluation matrix is ​​calculated to obtain the coefficient of variation of the corresponding column, thereby determining the node fault corresponding to the specified node. The fault information of the target power grid is composed of the fault information of all fault nodes belonging to the target power grid.

[0099] The working principle and beneficial effects of the above technical solution are: by splitting the target power grid fault into an evaluation of the nodes to which the target power grid belongs, judging the fault information of the designated node, and obtaining the fault information of the corresponding target power grid by summing up the fault information of the designated node, the type of mobile emergency equipment required to repair the fault can be obtained based on the fault information, which is conducive to the rational deployment of mobile emergency equipment.

[0100] The embodiment of the present invention provides a method for determining a dispatching strategy for mobile emergency equipment in a power plant, which is characterized in that, before setting a power replenishment priority for the corresponding target power grid according to the power loss load of each target power grid and the output load carried by the target power grid, the method further includes:

[0101] Determine, based on the fault information, a first power-off load of a designated node of each target power grid within a designated operation cycle;

[0102] Determine the urgency of power failure load corresponding to each designated node in the target power grid;

[0103]

[0104] Among them, r11 represents the loss coefficient of the ath designated node in the corresponding target power grid during peak power consumption; r12 represents the loss coefficient of the ath designated node in the corresponding target power grid during normal power consumption; r13 represents the loss coefficient of the ath designated node in the corresponding target power grid during off-peak power consumption; q1 1,brepresents the weight of the bth evaluation index during peak power consumption; q1 2,b Indicates the weight of the bth evaluation index in general electricity consumption; q1 3,b represents the weight of the bth evaluation index during off-peak electricity consumption; t a1 ∈[t01,t02) represents the time period of peak power consumption; t a1 ∈[t02,t03) represents the time period of general electricity consumption; t a1 ∈[t03,t04] represents the time period of low electricity consumption; P0 ab Indicates the standard value of the a-th designated node under the same target power grid based on the b-th evaluation index; F0 1,ab represents the value attenuation function of the a-th designated node under the same target power grid based on the b-th evaluation index during peak power consumption; F0 2,ab represents the value attenuation function of the a-th designated node under the same target power grid based on the b-th evaluation index under normal power consumption; F0 3,ab It represents the value attenuation function of the a-th designated node under the same target power grid based on the b-th evaluation index during off-peak power consumption;

[0105] According to the first power failure load and the power failure load urgency of the designated node in each target power grid, the node function H(D a ,S a ,Q a ), where D a represents the first power failure load of the ath designated node in the target power grid; Q a represents the node weight of the ath designated node in the corresponding target power grid;

[0106] According to the node function H(D a ,S a ,Q a ), set the node priority to the corresponding specified node.

[0107] The first power-off load is a changed load of the designated node that carries the output load after a fault occurs.

[0108] The urgency of power failure load is calculated based on the importance of each fault node by combining the fault occurrence time with the power failure load and the node evaluation matrix.

[0109] The loss coefficient is the loss condition coefficient caused by node failure of a specified node in three different power consumption periods.

[0110] The indicator weight is based on the influence of the column vector of the evaluation matrix on the urgency of charge loss.

[0111] The value decay function is the decay function of the evaluation value of the evaluation index of a specified node under the same target power grid in different time periods.

[0112] The node priority is the priority of the maintenance of the designated node corresponding to the node function calculation. The node priority constitutes the power replenishment priority of the entire target power grid.

[0113] The node function calculates the corresponding node priority according to the first power failure load, the power failure load urgency and the node weight of the corresponding designated node.

[0114] Node weight is the importance of a node in the corresponding function of a target power grid.

[0115] The working principle and beneficial effects of the above technical solution are: by calculating the urgency of the power loss load of the designated node, the urgency of the power loss load of the designated node, the corresponding first power loss load and the node weight of the designated node in the target power grid are combined to obtain a node function, and the corresponding node priority is set for the designated node through the node function, and the corresponding fault node is accurately determined, which is conducive to the rational deployment of mobile emergency equipment.

[0116] The embodiment of the present invention provides a method for determining a dispatching strategy for mobile emergency equipment in a power plant, characterized in that according to the node function H(D a ,S a ,Q a ), set the node priority to the corresponding specified node, including:

[0117] From the weight-standard mapping table, obtain a Matched comparative power failure load B01 and comparative urgency B02;

[0118] If B01 <D a or B02 a ,At this time, the corresponding designated node is determined to be a faulty node;

[0119] If B01≥D a and B02≥S a ,if At this time, the corresponding designated node is determined to be a random analysis node, where a1 and a2 are the corresponding calculation weights, and a3 is the set threshold;

[0120] Otherwise, the corresponding designated node is determined to be a normal node;

[0121] According to the work log of each target power grid, the backbone grid of the corresponding target power grid is obtained, the fault nodes existing on the corresponding backbone grid are set to the first priority, the random analysis nodes existing on the backbone grid are set to the second priority, the fault nodes not existing on the backbone grid are set to the third priority, and the remaining nodes are set to the fourth priority.​

[0122] The weight-standard mapping table includes the node weight, the first power failure load, and the power failure load urgency of each node in the target power grid under normal working conditions.

[0123] The comparative power failure load and the comparative urgency are corresponding standard values ​​calculated for the first power failure load and the power failure load urgency.

[0124] The process of judging the faulty node is to classify the corresponding nodes by comparing the power loss load, comparing the urgency with the first power loss load, and the urgency of the power loss load of the specified node. The classification types include normal nodes, random analysis points, and faulty nodes.

[0125] The random analysis node is the point when the comparative power-off load and the comparative urgency are both greater than the first power-off load and the power-off load urgency. This condition is no longer met for the judgment of the corresponding node failure, and a threshold will be set for the node. The random analysis node will be further classified after formula calculation.

[0126] The priority setting is set according to the position relationship between the specified node type and the backbone network.

[0127] The working principle and beneficial effects of the above technical solution are: by classifying and setting priorities for designated nodes, the efficiency of fault node determination is improved, which is conducive to the rational deployment of mobile emergency equipment.

[0128] The embodiment of the present invention provides a method for determining a dispatching strategy for mobile emergency equipment in a power plant, characterized in that according to the power loss load of each target power grid and the output load carried by the target power grid, a power replenishment priority is set for the corresponding target power grid, including:

[0129] Obtain the maximum power loss load urgency of all faulty nodes involved in the corresponding target power grid, the first total power loss load Z1 of all faulty nodes, and the second total power loss load Z2 of all non-faulty nodes involved in the corresponding target power grid;

[0130] Combined with the output load C1 of the corresponding target power grid and the priority setting results of all target power grids, determine the emergency value W1 of the power replenishment of the corresponding target power grid;

[0131]

[0132] Where m represents the number of fault nodes in the corresponding target power grid; S mrepresents the power failure load urgency of the mth fault node; S1 represents the power failure load urgency of the first fault node; S2 represents the power failure load urgency of the second fault node; maxl represents the historical maximum power failure load urgency of the corresponding target power grid; C0 represents the total output load of all target power grids involved in the power plant; b1 represents the calculation weight based on the power failure load; b2 represents the calculation weight based on the power failure load urgency; b3 represents the calculation weight based on the output load;

[0133] Based on the value-priority mapping table, the priority of power replenishment of the corresponding target power grid is obtained;

[0134] The calculation weight is obtained by analyzing the priority setting results of all target power grids according to the result analysis model.

[0135] The maximum power loss load urgency refers to the highest power loss load urgency in the faulty node, and the maximum power loss load urgency is combined with the weights of the first total power loss load and the second total power loss load in the calculation process of the power replenishment priority.

[0136] The first total power-off load is the sum of the power-off loads of the nodes determined to be faulty in the corresponding target power grid.

[0137] The second total power loss load is the sum of the expected power loss loads of all non-fault nodes in the target power grid.

[0138] The power replenishment emergency value is a corresponding value of the power replenishment priority of the faulty node according to the power failure load urgency of the faulty node of the target power grid and the total load carrying output load of the target power grid.

[0139] The value-priority mapping table includes the emergency value of power replenishment and the priority of power replenishment, and is a data table preset by experts.

[0140] The training samples of the result analysis model are the combination of the power replenishment priorities of different target power grids in the power plant and the calculation weights of the power failure load, power failure load urgency and output load corresponding to the combination allocated to each target power grid. Therefore, the value of the calculation weight can be obtained, and the number of samples is 10,000 or more.

[0141] The working principle and beneficial effect of the above technical solution are: according to the first power loss load and the second power loss load combined with the power loss load urgency of the corresponding target power grid fault node, the power replenishment emergency value of the corresponding target power grid is obtained, and the power replenishment priority of the corresponding target power grid is further obtained, which is conducive to the rational deployment of mobile emergency equipment.

[0142] An embodiment of the present invention provides a method for determining a scheduling strategy for mobile emergency equipment in a power plant. The method is characterized in that when the sum of all the quantities to be used is greater than the preset deployment quantity, the quantity scheduling of the mobile emergency equipment is performed according to the power replenishment priority of each target power grid, including:

[0143] Perform a first sorting on the target power grids according to all the power replenishment priorities;

[0144] At the same time, determine the first power grid that allows power generation suspension according to the power generation setting conditions of the power plant;

[0145] If the number of the first power grids is 0, it is determined that all target power grids need to generate power. At this time, obtain the minimum emergency quantity min0 corresponding to all target power grids;

[0146] When m1×min0 < y01, at this time, distribute to different target power grids according to the minimum emergency quantity min0 respectively. After power replenishment for a preset emergency time, transfer the movable equipment allowed to move from the power grid with the lowest power replenishment priority to the power grid with a higher priority and in need of continuous power replenishment for power replenishment, where y01 represents the preset deployment quantity; m1 is the number of power grids that need to generate power;

[0147] If m1×min0 > y01, at this time, according to the power replenishment priority of each target power grid, preferentially schedule to the target power grid with the highest power replenishment priority in sequence and according to the required quantity to be used.

[0148] The first sorting is the arrangement of the fault repair order of the target power grids for all the power replenishment priorities when the sum of all the quantities to be used is greater than the preset deployment quantity.

[0149] The first power grid is a power grid that will not cause huge losses after a power outage. The huge losses refer to the combination of life safety and economic safety.

[0150] The minimum emergency quantity is the quantity of the mobile emergency equipment corresponding to the target power grid that needs to generate power.

[0151] The working principle and beneficial effects of the above technical solution are: judging the number of target power grids without failures and the number of target power grids with power outages and no huge losses to obtain the minimum emergency quantity of the mobile emergency equipment, which is beneficial to clarify the information to be adjusted and is beneficial to the reasonable allocation of the mobile emergency equipment.

[0152] An embodiment of the present invention provides a method for determining a scheduling strategy for mobile emergency equipment applied to a power plant. The method is characterized in that determining the quantity to be used of the mobile emergency equipment corresponding to the target power grid includes:

[0153] Obtain the power loss load of the corresponding target power grid and the load supply difference of the load carried and output by the target power grid;

[0154] At the same time, obtain the supplementary load of each mobile emergency equipment;

[0155] Based on the load supply difference and the supplementary load, the number of mobile emergency devices to be used corresponding to the target power grid is determined.

[0156] Supplementary load is the maximum load that mobile emergency equipment can provide.

[0157] Load supply difference is the difference between the power loss load and the output load after a fault occurs in the target power grid.

[0158] The number of mobile emergency equipment to be used is calculated by dividing the load supply difference of the target power grid by the supplementary load of the corresponding type of mobile emergency equipment.

[0159] The working principle and beneficial effects of the above technical solution are: calculating the number of mobile emergency equipment to be used corresponding to each target power grid, clarifying the information to be adjusted, and facilitating the reasonable deployment of mobile emergency equipment.

[0160] Example 2

[0161] Reference Figure 2 , the second embodiment of the present invention provides a system for determining a dispatching strategy for mobile emergency equipment in a power plant, characterized in that it includes a fault information acquisition module, a power failure load determination module, an equipment quantity determination module, and an equipment dispatching module;

[0162] Fault information acquisition module: obtains the work logs of each target power grid in the power plant, analyzes the work logs, and determines the fault information of the corresponding target power grid;

[0163] Power loss load determination module: determines the power loss load caused by the fault information of each target power grid based on a preset indicator mechanism;

[0164] Equipment quantity determination module: according to the power loss load of each target power grid and the output load carried by the target power grid, set the power supply priority for the corresponding target power grid, and determine the number of mobile emergency equipment to be used in the corresponding target power grid;

[0165] Equipment scheduling module: When the sum of all the quantities to be used is greater than the preset deployment quantity, the quantity of mobile emergency equipment is scheduled according to the power replenishment priority of each target power grid.

[0166] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program codes.

[0167] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0168] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0169] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0170] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A method for determining a dispatching strategy for mobile emergency equipment in a power plant, characterized in that: include, Obtain the work logs of each target power grid in the power plant, analyze the work logs, and determine the fault information of the corresponding target power grid; Determine the power loss load caused by the fault information of each target power grid based on a preset indicator mechanism; According to the power loss load of each target power grid and the output load carried by the target power grid, the power supply priority is set for the corresponding target power grid, and the number of mobile emergency equipment to be used in the corresponding target power grid is determined; When the sum of all quantities to be used is greater than the preset deployment quantity, the mobile emergency equipment is dispatched according to the power replenishment priority of each target power grid.

2. The method for determining a dispatching strategy for mobile emergency equipment in a power plant according to claim 1, characterized in that: The work log analysis includes identifying a number of representative identifiers present in the work log according to an identifier identification mechanism; Each representative identifier is referenced to the identifier-description mapping table to extract several valid descriptions of the corresponding target power grid.

3. A method for determining a dispatching strategy for mobile emergency equipment in a power plant according to claim 2, characterized in that: Determining the fault information of the corresponding target power grid includes obtaining, based on a number of valid descriptions of each target power grid, the local environment in which different designated nodes in the corresponding target power grid are located, the node attributes of different designated nodes in the corresponding target power grid, and the damage to the connectivity of the corresponding target power grid after the different designated nodes are deleted; According to the load conditions of each designated node in the corresponding target power grid during the historical power generation process, the load level of the corresponding designated node is obtained; Establish the evaluation matrix X corresponding to the target power grid N×4 : Among them, P ab is the evaluation value of the a-th designated node under the same target power grid based on the b-th evaluation index, where the value range of a is [1, N], N is the total number of designated nodes under the corresponding target power grid; the value range of b is [1, 4], and when b = 1, it is related to the local environment, when b = 2, it is related to the node attribute, when b = 3, it is related to the damage situation, and when b = 4, it is related to the load level; Based on the standard value of each evaluation index, the standard deviation of each column vector in the corresponding evaluation matrix is ​​calculated, and then the coefficient of variation of the corresponding column is determined; Based on the row vector of each row and the coefficient of variation and standard value of each evaluation index in the corresponding row vector, the node fault corresponding to the specified node is determined; Based on the node failures of all corresponding designated nodes, the failure information of the corresponding target power grid is obtained.

4. A method for determining a dispatching strategy for mobile emergency equipment in a power plant according to claim 3, characterized in that: The setting of the power replenishment priority includes, according to the fault information, determining the first power loss load of the designated node of each target power grid within the designated operation cycle; Determine the urgency of power failure load corresponding to each designated node in the target power grid; Among them, r11 represents the loss coefficient of the ath designated node in the corresponding target power grid during peak power consumption; r12 represents the loss coefficient of the ath designated node in the corresponding target power grid during normal power consumption; r13 represents the loss coefficient of the ath designated node in the corresponding target power grid during off-peak power consumption; q1 1,b represents the weight of the bth evaluation index during peak power consumption; q1 2,b Indicates the weight of the bth evaluation index in general electricity consumption; q1 3,b represents the weight of the bth evaluation index during off-peak electricity consumption; t a1 ∈[t01,t02) represents the time period of peak power consumption; t a1 ∈[t02,t03) represents the time period of general electricity consumption; t a1 ∈[t03,t04] represents the time period of low electricity consumption; P0 ab Indicates the standard value of the a-th designated node under the same target power grid based on the b-th evaluation index; F0 1,ab represents the value attenuation function of the a-th designated node under the same target power grid based on the b-th evaluation index during peak power consumption; F0 2,ab represents the value attenuation function of the a-th designated node under the same target power grid based on the b-th evaluation index under normal power consumption; F0 3,ab It represents the value attenuation function of the a-th designated node under the same target power grid based on the b-th evaluation index during off-peak power consumption; According to the first power failure load and the power failure load urgency of the designated node in each target power grid, the node function H(D a ,S a ,Q a ), where D a represents the first power failure load of the ath designated node in the target power grid; Q a represents the node weight of the ath designated node in the corresponding target power grid; According to the node function H(D a ,S a ,Q a ), set the node priority to the corresponding specified node.

5. A method for determining a dispatching strategy for mobile emergency equipment in a power plant according to claim 4, characterized in that: The setting of the node priority to the corresponding designated node includes obtaining the node priority corresponding to Q from the weight-standard mapping table. a Matched comparative power failure load B01 and comparative urgency B02; If B01 <D a or B02 a When , the corresponding designated node is determined to be a faulty node;​ If B01≥D a and B02 ≥ S a When Determine the corresponding designated node as a random analysis node, where a1 and a2 are the corresponding calculation weights and a3 is the set threshold; if Determine that the corresponding designated node is a normal node; According to the work log of each target power grid, the backbone grid of the corresponding target power grid is obtained, the fault nodes existing on the corresponding backbone grid are set to the first priority, the random analysis nodes existing on the backbone grid are set to the second priority, the fault nodes not existing on the backbone grid are set to the third priority, and the remaining nodes are set to the fourth priority.

6. A method for determining a dispatching strategy for mobile emergency equipment in a power plant according to claim 5, characterized in that: The setting of the power supply priority for the corresponding target power grid includes obtaining the maximum power loss load urgency of all faulty nodes involved in the corresponding target power grid, the first total power loss load Z1 of all faulty nodes, and the second total power loss load Z2 of all non-faulty nodes involved in the corresponding target power grid; Combined with the output load C1 of the corresponding target power grid and the priority setting results of all target power grids, determine the emergency value W1 of the power replenishment of the corresponding target power grid; Where m represents the number of fault nodes in the corresponding target power grid; S m represents the power failure load urgency of the mth fault node; S1 represents the power failure load urgency of the first fault node; S2 represents the power failure load urgency of the second fault node; maxl represents the historical maximum power failure load urgency of the corresponding target power grid; C0 represents the total output load of all target power grids involved in the power plant; b1 represents the calculation weight based on the power failure load; b2 represents the calculation weight based on the power failure load urgency; b3 represents the calculation weight based on the output load; Based on the value-priority mapping table, the priority of power replenishment of the corresponding target power grid is obtained; The calculation weight is obtained by analyzing the priority setting results of all target power grids according to the result analysis model.

7. A method for determining a dispatching strategy for mobile emergency equipment in a power plant according to claim 6, characterized in that: When the sum of all the quantities to be used is greater than the preset deployment quantity, the quantity scheduling of the mobile emergency equipment is carried out according to the power replenishment priority of each target power grid, including: Perform a first sorting on the target power grids according to all the power replenishment priorities; Determine the first power grid allowed to suspend power generation according to the power generation setting conditions of the power plant; If the quantity of the first power grid is 0, it is determined that all target power grids need to generate power, and obtain the minimum emergency quantity min0 corresponding to all target power grids; When m1×min0 < y01, distribute to different target power grids according to the minimum emergency quantity min0 respectively. After power replenishment for the preset emergency time, transfer the allowed mobile equipment from the power grid with the lowest power replenishment priority to the power grid with higher priority and in need of continuous power replenishment for power replenishment, where y01 represents the preset deployment quantity; m1 is the quantity of power grids that need to generate power; If m1×min0 > y01, perform priority scheduling in sequence according to the power replenishment priority of each target power grid to the target power grid with the highest power replenishment priority and according to the quantity to be used; Determining the quantity to be used of the mobile emergency equipment for the corresponding target power grid includes obtaining the power loss load of the corresponding target power grid and the load supply difference of the target power grid carrying the output load; obtaining the supplementary load of each mobile emergency equipment; and determining the quantity to be used of the mobile emergency equipment for the corresponding target power grid based on the load supply difference and the supplementary load.

8. A system for determining a dispatching strategy for mobile emergency equipment in a power plant based on any one of claims 1 to 7, characterized in that: Including a fault information acquisition module, a power loss load determination module, an equipment quantity determination module, and an equipment scheduling module; Fault information acquisition module: Acquire the working logs of each target power grid in the power plant, and analyze the working logs to determine the fault information of the corresponding target power grid; Power loss load determination module: Determine the power loss load caused by the fault information of each target power grid based on the preset index mechanism; Equipment quantity determination module: Set the power replenishment priority for the corresponding target power grid according to the power loss load of each target power grid and the output load carried by the target power grid, and determine the quantity to be used of the mobile emergency equipment for the corresponding target power grid; Equipment scheduling module: When the sum of all the quantities to be used is greater than the preset deployment quantity, perform quantity scheduling of the mobile emergency equipment according to the power replenishment priority of each target power grid.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by the processor, the steps of the method described in any one of claims 1 to 7 are implemented.

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