Power grid operation evaluation method based on business association

Abstract

The invention provides a power grid operation evaluation method based on business association, and the evaluation method specifically comprises the steps: dividing business links of power grid operation, and constructing a business association relation graph according to the association relation between the business links; based on a power grid operation ideal scheduling evaluation model, obtaining a power grid operation work ideality and an ideal state of each service link, and calculating the ideality of each service link in combination with the service association relation graph; calculating the ideal contribution degree of each business link based on the power grid operation ideal degree and the ideal degree of each business link; and based on the ideal contribution degree, obtaining an evaluation result of the influence degree of each business link on power grid operation. According to the method, the relationship between each business link and the power grid operation ideal degree can be analyzed based on the association relationship between the business links while the power grid operation ideal degree is calculated, so that the influence degree of each business link on the power grid operation ideal degree is determined, and the accurate operation condition of each business link is obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution networks, and in particular to a power distribution network operation evaluation method based on business association. Background Art

[0002] The ideality of grid operation is an important indicator for evaluating the efficiency of grid operation. For the ideality of grid operation, most of them are done by building an ideal dispatching model and comparing the actual operation plan execution effect with the ideal dispatching plan to calculate the ideality of grid operation and then evaluate the efficiency of grid operation.

[0003] The existing grid operation evaluation based on the ideal grid dispatch is a comprehensive evaluation of the overall results of grid operation, that is, comparing the overall operation situation with the ideal dispatch plan to obtain the ideal evaluation result of the overall grid operation situation. This evaluation result can reflect the overall level of grid operation and reveal the difference between the actual operation and the ideal plan. However, the grid operation business includes multiple business links, and the overall evaluation result cannot reflect the advantages and disadvantages of each business link. The evaluation result is not comprehensive enough and cannot provide effective data for the subsequent grid operation optimization. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art that the ideality of power grid operation can only be analyzed to evaluate the overall operation level of the power grid, and the evaluation results are not comprehensive enough. A power grid operation evaluation method based on business association is provided. While calculating the ideality of power grid operation, based on the association between business links, the relationship between each business link and the ideality of power grid operation is further analyzed to determine the degree of influence of each business link on the ideality of power grid operation, thereby obtaining the accurate operation status of each business link, providing effective data for subsequent power grid operation optimization, and accurately locating the business link that deviates from the ideal solution.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] The power grid operation evaluation method based on business association includes:

[0007] Divide the business links of power grid operation and construct a business association relationship diagram based on the association relationship between business links;

[0008] Based on the ideal dispatch evaluation model for power grid operation, the ideal degree of power grid operation and the ideal state of each business link are obtained, and the ideal degree of each business link is calculated in combination with the business association relationship diagram;

[0009] Based on the ideality of power grid operation and the ideality of each business link, calculate the ideal contribution of each business link;

[0010] Based on the ideal contribution, obtain the evaluation results of the impact of each business link on the operation of the power grid.

[0011] By establishing an ideal dispatching evaluation model for power grid operation, the ideal degree of power grid operation is used to quantitatively evaluate the overall operation effect of the power grid operation, and the ideal state of each business link is further obtained. The gap between the actual performance of each business link and the ideal state is also quantified by the ideal degree. Subsequently, by comparing the ideal degree of power grid operation and each business link, the contribution of each business link to the overall performance of the power grid operation can be quantified, which is helpful to discover key business links and potential improvement points, improve the efficiency and effectiveness of power grid operation management, and promote the continuous optimization and improvement of power grid operation.

[0012] Furthermore, the constructing of a business association relationship diagram according to the association relationship between business links also includes:

[0013] Determine the data transmission relationship corresponding to each business link according to the business association relationship diagram, and construct the data relationship function of each business link based on the data transmission relationship.

[0014] In the evaluation process of the ideal dispatching evaluation model for power grid operation, the output of the ideal dispatching scheme under the ideal state is actually the final output of the power grid, and the ideal state of each business link in the ideal dispatching scheme cannot be obtained. The business association relationship diagram reflects the association relationship between each business link. Therefore, the data transmission relationship of each business link can be determined according to the business association relationship diagram, and then the data relationship function of each business link can be set. Even if only one output value is obtained, the ideal state of each business link can be reversed through the data relationship function to ensure the smooth implementation of the subsequent ideal value calculation of each business link.

[0015] Furthermore, the ideal degree of grid operation and the ideal state of each business link are obtained based on the ideal grid operation dispatch evaluation model, including:

[0016] Based on the actual operation boundary, the ideal dispatch evaluation model for power grid operation is constructed with the goal of maximizing the indicator level of the corresponding evaluation indicators of power grid operation;

[0017] Solve the ideal dispatch evaluation model for power grid operation and obtain the evaluation index values ​​of power grid operation under ideal dispatch conditions;

[0018] The actual values ​​of the evaluation indicators are calculated based on the actual data of the power grid operation, and the ideal degree of power grid operation is calculated by combining the values ​​of the evaluation indicators under ideal dispatching conditions;

[0019] Based on the data relationship function of each business link, the ideal state of each business link is restored and obtained according to the output state of the corresponding power grid operation under ideal dispatching conditions.

[0020] Furthermore, the expression of the ideality of the grid operation is:

[0021]

[0022] Among them, P Y is the ideal degree of grid operation, G(a1,a2,…a N ) is the evaluation index value under ideal scheduling conditions, G R is the actual value of the evaluation index, a1, a2, …a N They are the boundary data on which the power grid operation is based.

[0023] Furthermore, the calculation of the ideal state ideality of each business link in combination with the business association relationship diagram includes:

[0024] Each business link is taken as the business link to be evaluated, and the ideal state of the business link to be evaluated under the ideal evaluation model of power grid operation is determined;

[0025] Determine the business link associated with the business link to be evaluated according to the business association relationship diagram, and update the output data of the business link associated with the business link according to the ideal state of the business link to be evaluated;

[0026] Based on the updated output data of each business link, obtain the corresponding evaluation index value of the business link to be evaluated under the ideal state;

[0027] The ideal degree of the ideal state of the business link to be evaluated is calculated based on the corresponding evaluation index values ​​under the ideal state of the business link to be evaluated, until the ideal degree of the ideal state of each business link is obtained.

[0028] Furthermore, the expression of the ideal state ideality is:

[0029]

[0030] Among them, P X is the ideal state ideality of one of the business links X, G(a1, a2, …a N ) is the evaluation index value under ideal scheduling conditions, G X When one of the business links X is the business link to be evaluated, the corresponding evaluation index values ​​under the ideal state are a1, a2, … a N They are the boundary data on which the power grid operation is based.

[0031] Furthermore, based on the ideality of the grid operation and the ideality of each business link, the expression for calculating the ideal contribution of each business link is:

[0032]

[0033] Among them, v X is the ideal contribution of business link X, P X is the ideal state ideality of business link X, NX is the number of business links, P Y The ideal degree of grid operation.

[0034] Furthermore, the business links of the power grid operation are divided, and a business association relationship diagram is constructed according to the association relationship between the business links, including:

[0035] Divide the grid operation work into several business links based on business needs;

[0036] Determine the data transmission relationship between business links based on the input data and output data of each business link;

[0037] Determine the association relationship between business links based on the data transmission relationship between business links and construct a business association relationship diagram.

[0038] Furthermore, determining the association relationship between the business links according to the data transmission relationship between the business links and constructing a business association relationship diagram includes:

[0039] When the data transmission relationship between business links shows that the output data of a business link is the input data of another business link, it is determined that there is a direct business association relationship between the business links;

[0040] For business data with direct business association, the business link that outputs data is the upper-level business, and the business link that inputs data is the lower-level business;

[0041] Based on the superior business identity and subordinate business identity of each business link, a business association relationship diagram is constructed.

[0042] Furthermore, the business association relationship diagram is constructed based on the superior business identity and the subordinate business identity of each business link, including:

[0043] Filter out the business links without upper-level businesses as the starting nodes of the business association relationship diagram. When the starting node is determined to be the upper-level business identity, the business links corresponding to the lower-level business identity contact the starting node;

[0044] The business link that contacts the starting node is taken as the starting node again. When the starting node is determined to be the upper-level business identity, the business link corresponding to the lower-level business identity contacts the starting node until all business links are contacted to obtain a business association relationship diagram.

[0045] The beneficial effects of the present invention are:

[0046] (1) By establishing an ideal dispatching evaluation model for power grid operation, the ideal degree of power grid operation is used to quantitatively evaluate the overall operation effect of the power grid operation, and the ideal state of each business link is further obtained. The gap between the actual performance of each business link and the ideal state is also quantified by the ideal degree. Subsequently, by comparing the ideal degree of power grid operation and each business link, the contribution of each business link to the overall performance of the power grid operation can be quantified, which helps to discover key business links and potential improvement points, improve the efficiency and effectiveness of power grid operation management, and promote the continuous optimization and improvement of power grid operation.

[0047] (2) In the evaluation process of the ideal dispatching evaluation model for power grid operation, the output of the ideal dispatching scheme under the ideal state is actually the final output of the power grid, and the ideal state of each business link in the ideal dispatching scheme cannot be obtained. The business association relationship diagram reflects the association relationship between each business link. Therefore, the data transmission relationship of each business link can be determined according to the business association relationship diagram, and then the data relationship function of each business link can be set. Even if only one output value is obtained, the ideal state of each business link can be obtained by reverse calculation through the data relationship function, so as to ensure the smooth implementation of the subsequent ideal value calculation of each business link. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic diagram of a process of the present invention;

[0049] Figure 2 It is a schematic diagram of a power generation plan preparation business association diagram according to an embodiment of the present invention. DETAILED DESCRIPTION

[0050] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0051] Example:

[0052] The ideal dispatching plan is a set of optimal unit combinations and economic dispatching plans that meet safety constraints based on the "inversion" of actual grid operation information and historical scenarios. The gap between actual operation and the ideal plan can be quantitatively analyzed to provide a scientific basis for improving the level of grid dispatching.

[0053] However, when quantitatively analyzing the gap between actual operating conditions and ideal solutions in order to evaluate the operating effects of the power grid, the evaluation results obtained are overall evaluation levels and cannot reflect the pros and cons of each business link.

[0054] Taking the preparation of power generation plan as an example, it can be divided into business links such as load forecasting, new energy forecasting, transmission and transformation equipment maintenance plan scheduling, conventional unit start-up and shutdown plan scheduling, and power generation plan optimization. The ideal scheduling method can evaluate the overall ideality of the power grid power generation plan business, but it cannot reveal which business link the key limiting factor of the ideality difference is, and how the various business links affect the overall benefits of the power grid operation power generation plan.

[0055] This will also result in the problem that the results of the grid operation efficiency evaluation are difficult to use directly for business improvement. Even if evaluation indicators are further designed for different business links to achieve separate evaluation of business links, there may be a mismatch between the evaluation indicators designed for each business link and the grid operation evaluation results based on ideal scheduling, and it is still impossible to provide an effective basis for the improvement of business links.

[0056] Based on this, this embodiment proposes a power grid operation evaluation method based on business association, such as Figure 1 As shown, including:

[0057] Divide the business links of power grid operation and construct a business association relationship diagram based on the association relationship between business links;

[0058] Based on the ideal dispatch evaluation model for power grid operation, the ideal degree of power grid operation and the ideal state of each business link are obtained, and the ideal degree of each business link is calculated in combination with the business association relationship diagram;

[0059] Based on the ideality of power grid operation and the ideality of each business link, calculate the ideal contribution of each business link;

[0060] Based on the ideal contribution, obtain the evaluation results of the impact of each business link on the operation of the power grid.

[0061] Taking into account the possible mismatch between the evaluation indicators designed separately for each business link and the evaluation results of power grid operation based on ideal scheduling, the ideal scheduling evaluation model of power grid operation is still used. The ideality of the overall power grid operation is further combined with the correlation between the business links to obtain the ideality of each business link. That is, the separate evaluation results of each business link are obtained without conflicting with the evaluation results of power grid operation, thereby ensuring the accuracy of the evaluation results of the impact of business links on power grid operation.

[0062] Dividing the business links of power grid operation can clearly define the specific responsibilities and work content of each business link, and then accurately obtain the relationship between business links and ensure the accuracy of the business relationship diagram.

[0063] Specifically, the business links of the power grid operation are divided, and a business association relationship diagram is constructed according to the association relationship between the business links, including:

[0064] Divide the grid operation work into several business links based on business needs;

[0065] Determine the data transmission relationship between business links based on the input data and output data of each business link;

[0066] Determine the association relationship between business links based on the data transmission relationship between business links and construct a business association relationship diagram.

[0067] The relationship between business links can be reflected through data transmission. According to the relationship reflected by the data transmission, the relationship between business links belonging to the same power grid operation work is determined according to the following rules:

[0068] (1) Direct business relationship, which means that the output data of one business link is the input data of another business link.

[0069] (2) There is no direct business relationship, which means there is no data transmission relationship between the two businesses.

[0070] Based on the above rules, according to the association relationship between business links determined by the data transmission relationship between business links, a business association relationship diagram is constructed, including the following steps:

[0071] When the data transmission relationship between business links shows that the output data of a business link is the input data of another business link, it is determined that there is a direct business association relationship between the business links;

[0072] For business data with direct business association, the business link that outputs data is the upper-level business, and the business link that inputs data is the lower-level business;

[0073] Based on the superior business identity and subordinate business identity of each business link, a business association relationship diagram is constructed.

[0074] Considering that there are differences in input and output between data transmission relationships, the same business link may have data transmission relationships with two other business links at the same time, but there are differences in data input and output identities. In order to reflect this in the business association relationship diagram and to ensure the efficiency of building the business association relationship diagram, for business links with direct business association relationships, that is, business links that need to be communicated when building the business association relationship diagram, they are first divided into superior business and subordinate business according to the data transmission relationship, so as to straighten out the data transmission of each business node in the business association relationship diagram, and then accurately and efficiently build the business association relationship diagram according to the operation method of communicating the superior business and the subordinate business.

[0075] The business association relationship diagram is constructed based on the superior business identity and the subordinate business identity of each business link, including:

[0076] Filter out the business links without upper-level businesses as the starting nodes of the business association relationship diagram. When the starting node is determined to be the upper-level business identity, the business links corresponding to the lower-level business identity contact the starting node;

[0077] The business link that contacts the starting node is taken as the starting node again. When the starting node is determined to be the upper-level business identity, the business link corresponding to the lower-level business identity contacts the starting node until all business links are contacted to obtain a business association relationship diagram.

[0078] When constructing a business association diagram, first filter out business links without parent businesses. They can be regarded as the data basis for subsequent business links. During their operation, they are not affected by the data of other business links. Therefore, use this as the starting node to determine the corresponding subordinate node, that is, the business link with its output data as input data, to achieve communication between the two.

[0079] After completing the connection between the business link without the upper-level business and other business links, the other business links connected with it are used as the starting node to further select the next-level business links whose output data of this part of the business link is used as the input data to achieve the connection. Repeat the above operation until all business links are connected to obtain the final business association relationship diagram.

[0080] And considering that there may be multiple business links at each level, when setting the starting node, multiple business links can be set at the same time, and the business links that have a direct business association relationship with the starting node can be obtained respectively, and their output data is the corresponding input data, and the corresponding identity is the business link of the lower-level business to achieve communication.

[0081] Taking the preparation of power generation plans for business links such as load forecasting, new energy forecasting, power transmission and transformation equipment maintenance plan scheduling, conventional unit start-up and shutdown plan scheduling, and power generation plan optimization as an example, the correlation between the above business links is determined according to the data transmission situation. Among them, the power transmission and transformation equipment maintenance plan scheduling and conventional unit start-up and shutdown plan scheduling are directly related to load forecasting and new energy forecasting, and the above four businesses are also directly related to power generation plan optimization.

[0082] Based on this, the business association diagram for power generation planning is as follows: Figure 2 As shown in the figure, business links A, B, C, D, and E represent load forecasting, new energy forecasting, power transmission and transformation equipment maintenance plan scheduling, conventional unit start-up and shutdown plan scheduling, and power generation plan optimization business links respectively.

[0083] In the evaluation process of the ideal dispatching evaluation model for power grid operation, the output of the ideal dispatching scheme under the ideal state is actually the final output of the power grid, and the ideal state of each business link in the ideal dispatching scheme cannot be obtained. The business association relationship diagram reflects the association relationship between each business link. Therefore, the data transmission relationship of each business link can be determined according to the business association relationship diagram, and then the data relationship function of each business link can be set. Even if only one output value is obtained, the ideal state of each business link can be reversed through the data relationship function to ensure the smooth implementation of the subsequent ideal value calculation of each business link.

[0084] Therefore, after constructing the business association relationship diagram according to the association relationship between business links, the data transmission relationship corresponding to each business link is determined according to the business association relationship diagram, and the data relationship function of each business link is constructed based on the data transmission relationship.

[0085] Taking the business association diagram corresponding to power generation plan preparation as an example, Figure 2 It can be seen that the data of business link C is determined by the output data of business link A and business link B. The data relationship function of business link C can be expressed as:

[0086] b A =DC(b B ,b C );

[0087] Among them, b A , b B and b C are the output data of business link A, business link B and business link C respectively, and DC is the data relationship function between the input data and output data of business link C.

[0088] The specific form and content of the data relationship function of each business link can be set according to the specific operating conditions and equipment characteristics of each business link.

[0089] The ideal dispatch evaluation model based on the power grid operation obtains the ideal degree of power grid operation and the ideal state of each business link, including:

[0090] Based on the actual operation boundary, the ideal dispatch evaluation model for power grid operation is constructed with the goal of maximizing the indicator level of the corresponding evaluation indicators of power grid operation;

[0091] Solve the ideal dispatch evaluation model for power grid operation and obtain the evaluation index values ​​of power grid operation under ideal dispatch conditions;

[0092] The actual values ​​of the evaluation indicators are calculated based on the actual data of the power grid operation, and the ideal degree of power grid operation is calculated by combining the values ​​of the evaluation indicators under ideal dispatching conditions;

[0093] Based on the data relationship function of each business link, the ideal state of each business link is restored and obtained according to the output state of the corresponding power grid operation under ideal dispatching conditions.

[0094] After completing the business association diagram, the ideal dispatch evaluation model for power grid operation is established first. This model is essentially an optimal planning model based on the actual operation boundary, that is, all business output data are consistent with the indicator level that can be achieved by the corresponding evaluation indicators of power grid operation under actual operation conditions, which can be expressed as:

[0095] Max G(a1,a2,…a N );

[0096]

[0097] Among them, G(a1,a2,…a N ), F NE (a1,a2,…a N ) and F E (a1,a2,…a N ) are respectively the optimization objective function, inequality constraint and equality constraint of the ideal dispatch evaluation model for power grid operation, a1, a2, … a N They are the boundary data on which the power grid operation is based. are the actual values ​​of the boundary data respectively.

[0098] The model is solved by the data planning method. The corresponding value of the optimization target of the model is the evaluation index value under ideal conditions. The actual value of the evaluation index is further calculated based on the actual data of the power grid operation. By comparing the actual value with the evaluation index value under ideal conditions, the deviation between the actual operation of the power grid and the ideal solution can be obtained, that is, the ideality of the power grid operation.

[0099] In this embodiment, the ideality of the grid operation is defined as the difference between 1 and the deviation between the ideal dispatch evaluation index value and the actual value.

[0100] Specifically, the expression of the ideality of the grid operation is:

[0101]

[0102] Among them, P Y is the ideal degree of grid operation, G(a1,a2,…a N ) is the evaluation index value under ideal scheduling conditions, G R is the actual value of the evaluation index, a1, a2, …a N They are the boundary data on which the power grid operation is based.

[0103] In this embodiment, the output data of the business link under the ideal scheduling scheme is specifically set as the ideal state of the corresponding business link. Therefore, the reverse deduction method can be used to infer the input data from the corresponding output data link by link.

[0104] Likewise Figure 2 Taking business link C as an example, the calculation formula for deriving input data from its output data can be expressed as:

[0105] (b A ,b B )=DC -1 (b C );

[0106] Among them, DC -1 (b C ) represents the inverse function of the data relationship function between the input data and output data of business link C.

[0107] In this way, the output data of each business link, that is, the ideal state of each business link, can be obtained.

[0108] After obtaining the ideal state of each business link, the ideal degree of the ideal state of each business link is calculated in combination with the business association diagram, including the following steps:

[0109] Each business link is taken as the business link to be evaluated, and the ideal state of the business link to be evaluated under the ideal evaluation model of power grid operation is determined;

[0110] Determine the business link associated with the business link to be evaluated according to the business association relationship diagram, and update the output data of the business link associated with the business link according to the ideal state of the business link to be evaluated;

[0111] Based on the updated output data of each business link, obtain the corresponding evaluation index value of the business link to be evaluated under the ideal state;

[0112] The ideal degree of the ideal state of the business link to be evaluated is calculated based on the corresponding evaluation index values ​​under the ideal state of the business link to be evaluated, until the ideal degree of the ideal state of each business link is obtained.

[0113] Among them, when each business link is the business link to be evaluated, the ideal state of the business link to be evaluated is set to clarify the expected output data of the business link under the ideal evaluation model of power grid operation, and on this basis, the ideal solution can be obtained when the business link to be evaluated is adjusted to the corresponding ideal state. The ideal solution consists of the business link to be evaluated under the ideal state, the output data of the business link associated with it updated according to the output data of the business link to be evaluated under the ideal state, and the original output data of the business link that has no associated relationship with it.

[0114] When the output data of the business link to be evaluated is updated according to the output data of the business link to be evaluated under an ideal state, the output data is updated specifically by a forward push method.

[0115] Taking business link A as an example, the ideal state of business link A is set as follows:

[0116]

[0117] in, is the output data of the ideal state of business link A, Output data for business link A under the ideal evaluation model for power grid operation.

[0118] According to the forward push method, the output data of business link C, business link D and business link E affected by business link A are updated, and the update result can be expressed as:

[0119]

[0120] Among them, DC(), DD() and DE() are the data relationship functions between the input data and output data of business link C, business link D and business link E respectively. and They are business link C, business link D and business link E respectively. When the output data of business link A becomes the ideal output data, the updated output data, b B It is the original output data of business link B.

[0121] Thus, the evaluation index value of the corresponding ideal solution under the ideal state of the business link to be evaluated can be determined to obtain the ideality of the ideal state of the business link to be evaluated for the operation of the power grid. The expression of the ideality of the corresponding ideal state is:

[0122]

[0123] Among them, P X is the ideal state ideality of one of the business links X, G(a1, a2, …a N ) is the evaluation index value under ideal scheduling conditions, G X When one of the business links X is the business link to be evaluated, the corresponding evaluation index values ​​under the ideal state are a1, a2, … a N They are the boundary data on which the power grid operation is based.

[0124] The ideal state ideality of each business link reflects the improvement of the power grid operation work when the business link reaches the optimal level. Considering the complexity of the business association relationship, the ideality of each business link cannot directly reflect its contribution to the overall ideality of the power grid operation work. To this end, this embodiment introduces the ideal contribution index of the business link to evaluate the influence of each business link on the ideality of the power grid operation work. This index is defined as the product of the proportion of the ideality of the business link to the sum of the idealities of all business links and the ideality of the power grid operation work, and its expression is:

[0125]

[0126] Among them, v X is the ideal contribution of business link X, P X is the ideal state ideality of business link X, NX is the number of business links, P A The ideal degree of grid operation.

[0127] The ideal contribution of a business link can more accurately reflect the relationship between the business link and the ideality of power grid operation, and the value is directly related to the overall ideality of the business link, which can intuitively reflect the impact of each business link on the overall operating efficiency.

[0128] By corresponding to the ideal contribution, key business nodes and potential improvement points can be quickly discovered, thereby improving the efficiency and effectiveness of power grid operation management and promoting continuous optimization and improvement of power grid operation.

[0129] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. A power grid operation evaluation method based on business association, characterized in that: include: Divide the business links of power grid operation and construct a business association relationship diagram based on the association relationship between business links; Based on the ideal dispatch evaluation model for power grid operation, the ideal degree of power grid operation and the ideal state of each business link are obtained, and the ideal degree of each business link is calculated in combination with the business association relationship diagram; Based on the ideality of power grid operation and the ideality of each business link, calculate the ideal contribution of each business link; Based on the ideal contribution, obtain the evaluation results of the impact of each business link on the operation of the power grid.

2. The power grid operation evaluation method based on business association according to claim 1 is characterized in that: The constructing of the business association relationship diagram according to the association relationship between the business links also includes: Determine the data transmission relationship corresponding to each business link according to the business association relationship diagram, and construct the data relationship function of each business link based on the data transmission relationship.

3. The power grid operation evaluation method based on business association according to claim 2 is characterized in that: The ideal dispatch evaluation model based on the power grid operation obtains the ideal degree of power grid operation and the ideal state of each business link, including: Based on the actual operation boundary, the ideal dispatch evaluation model for power grid operation is constructed with the goal of maximizing the indicator level of the corresponding evaluation indicators of power grid operation; Solve the ideal dispatch evaluation model for power grid operation and obtain the evaluation index values ​​of power grid operation under ideal dispatch conditions; The actual values ​​of the evaluation indicators are calculated based on the actual data of the power grid operation, and the ideal degree of power grid operation is calculated by combining the values ​​of the evaluation indicators under ideal dispatching conditions; Based on the data relationship function of each business link, the ideal state of each business link is restored and obtained according to the output state of the corresponding power grid operation under ideal dispatching conditions.

4. The power grid operation evaluation method based on business association according to claim 3 is characterized in that: The expression of the ideality of the grid operation is: Among them, P Y is the ideal degree of grid operation, G(a1,a2,…a N ) is the evaluation index value under ideal scheduling conditions, G R is the actual value of the evaluation index, a1, a2, …a N They are the boundary data on which the power grid operation is based.

5. The power grid operation evaluation method based on business association according to claim 3 is characterized in that: The calculation of the ideal state ideality of each business link in combination with the business association relationship diagram includes: Each business link is taken as the business link to be evaluated, and the ideal state of the business link to be evaluated under the ideal evaluation model of power grid operation is determined; Determine the business links that are associated with the business links to be evaluated according to the business association relationship diagram, and update the output data of the business links that are associated with the business links to be evaluated according to the ideal state of the business links to be evaluated; based on the output data of each business link after the update, obtain the corresponding evaluation index value of the business link to be evaluated in the ideal state; The ideal degree of the ideal state of the business link to be evaluated is calculated based on the corresponding evaluation index values ​​under the ideal state of the business link to be evaluated, until the ideal degree of the ideal state of each business link is obtained.

6. The power grid operation evaluation method based on business association according to claim 5 is characterized in that: The expression of the ideal state ideality is: Among them, P X is the ideal state ideality of one of the business links X, G(a1, a2, …a N ) is the evaluation index value under ideal scheduling conditions, G X When one of the business links X is the business link to be evaluated, the corresponding evaluation index values ​​under the ideal state are a1, a2, … a N They are the boundary data on which the power grid operation is based.

7. The power grid operation evaluation method based on business association according to claim 1 is characterized in that: The expression for calculating the ideal contribution of each business link based on the ideality of the power grid operation and the ideality of each business link is: Among them, v X is the ideal contribution of business link X, P X is the ideal state ideality of business link X, NX is the number of business links, P Y The ideal degree of grid operation.

8. The power grid operation evaluation method based on business association according to claim 1 is characterized in that: The division of the business links of the power grid operation and the construction of a business association relationship diagram according to the association relationship between the business links include: Divide the grid operation work into several business links based on business needs; Based on the input data and output data of each business link, determine the data transmission relationship between business links; determine the association relationship between business links based on the data transmission relationship between business links, and construct a business association relationship diagram.

9. The power grid operation evaluation method based on business association according to claim 8 is characterized in that: Determining the association relationship between business links according to the data transmission relationship between business links and constructing a business association relationship graph includes: When the data transmission relationship between business links shows that the output data of a business link is the input data of another business link, it is determined that there is a direct business association relationship between the business links; For business data with direct business association, the business link that outputs data is the upper-level business, and the business link that inputs data is the lower-level business; Based on the superior business identity and subordinate business identity of each business link, a business association relationship diagram is constructed.

10. The power grid operation evaluation method based on business association according to claim 9, characterized in that: The business association relationship diagram is constructed based on the superior business identity and the subordinate business identity of each business link, including: Filter out the business links without upper-level businesses as the starting nodes of the business association relationship diagram. When the starting node is determined to be the upper-level business identity, the business links corresponding to the lower-level business identity contact the starting node; The business link that contacts the starting node is taken as the starting node again. When the starting node is determined to be the upper-level business identity, the business link corresponding to the lower-level business identity contacts the starting node until all business links are contacted to obtain a business association relationship diagram.

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