CN118114947A

CN118114947A - Price difference-based power cross-provincial and cross-regional iterative collaborative scheduling method and device

Info

Publication number: CN118114947A
Application number: CN202410365791.1A
Authority: CN
Inventors: 梁梓杨; 吴洋; 尚楠; 冷媛; 张妍; 杨鑫和; 刘卓; 谢一工; 朱欣春; 刘双全
Original assignee: Yunnan Power Grid Co Ltd; Energy Development Research Institute of China Southern Power Grid Co Ltd
Current assignee: Yunnan Power Grid Co Ltd; Energy Development Research Institute of China Southern Power Grid Co Ltd
Priority date: 2024-03-28
Filing date: 2024-03-28
Publication date: 2024-05-31

Abstract

The application relates to a price difference-based power cross-province and cross-region iterative collaborative scheduling method and device. The method comprises the following steps: determining a marginal clearing price according to the cost data and the electric power net load data; acquiring a power transmission price, and determining a difference value between the absolute value and the power transmission price according to the absolute value of a price difference between marginal clearing prices and the power transmission price; screening out the maximum difference value from the difference values, and taking the area corresponding to the maximum difference value as an area to be scheduled; and under the condition that the difference value is larger than zero and the power of the power transmission line is smaller than or equal to the corresponding power threshold value, iteratively modifying the power of the power transmission line according to the preset step value to obtain the power net load data and the power of the power transmission line for controlling power scheduling. By adopting the method, the power scheduling scheme of each region can be iteratively modified based on the price difference between the marginal clearing price and the power transmission price of each region, so that accurate power net load data and power of a power transmission line are obtained, and the accuracy of power scheduling in a power system is further improved.

Description

Price difference-based power cross-provincial and cross-regional iterative collaborative scheduling method and device

Technical Field

The present application relates to the field of power scheduling technologies, and in particular, to a price-difference-based power trans-provincial trans-regional iterative collaborative scheduling method, apparatus, computer device, storage medium, and computer program product.

Background

In the electric power field, because the energy resources in different regions are not matched with the economic development, the electric power scheduling is difficult, the electric power scheduling situation among different regions can be optimized by cross-region and cross-province cooperation, the optimal configuration of the electric power resources in a larger range is promoted, the energy consumption problem is solved, and the complementary deficiency is realized.

The traditional technology mainly determines a cross-regional power dispatching strategy based on past power dispatching experience, however, due to time constraint limitation of power dispatching work arrangement and actual analysis requirements, the power dispatching strategy formulated based on experience cannot completely meet the power dispatching requirements of all regions, power dispatching data are inaccurate, and improvement of the accuracy of power dispatching is not facilitated.

Disclosure of Invention

Based on this, it is necessary to provide a power trans-provincial trans-regional iterative collaborative scheduling method, apparatus, computer device, computer readable storage medium and computer program product based on price difference capable of power scheduling accuracy.

In a first aspect, the present application provides a price-difference-based power cross-provincial and cross-regional iterative collaborative scheduling method, including:

determining a marginal clearing price corresponding to each region according to the cost data and the electric power payload data of each region;

Acquiring the power transmission price of each region, and determining the difference value between the absolute value and the power transmission price according to the absolute value of the price difference between the marginal clearing prices and the power transmission price;

screening out the maximum difference value from the difference values, and taking the area corresponding to the maximum difference value as an area to be scheduled;

when the difference value corresponding to the area to be scheduled is larger than zero and the power of the power transmission line of the area to be scheduled is smaller than or equal to the power threshold value corresponding to the area to be scheduled, iteratively modifying the power of the power transmission line of the area to be scheduled according to a preset step value to obtain target power net load data and target power of the power transmission line; the target power payload data and the target transmission line power are used to control power scheduling between the regions.

In one embodiment, the cost data includes unit quotation data and declaration amount data of each area, and the determining the marginal clearing price corresponding to each area according to the cost data and the electric power payload data of each area includes:

Acquiring at least one candidate marginal clearing price corresponding to each region;

Determining a ratio between the power payload data of each region and at least one candidate marginal price per each region;

Under the condition that the sum of the declaration quantity data of each area is equal to the ratio, determining the product between the unit quotation data and the declaration quantity data of each area to obtain a product set;

And under the condition that any product in the product set is smaller than products except any product in the product set, taking the candidate marginal clearing price corresponding to any product as the marginal clearing price corresponding to each region.

In one embodiment, the to-be-scheduled area includes a power receiving area and a power transmitting area, and the iteratively modifying the power of the power transmission line of the to-be-scheduled area according to a preset step value to obtain target power payload data and target power of the power transmission line includes:

When the absolute value of the price difference between the marginal clearing prices corresponding to the to-be-scheduled area is larger than the power transmission price corresponding to the to-be-scheduled area, and the marginal clearing price corresponding to the power receiving area is smaller than or equal to the marginal clearing price corresponding to the power transmitting area, taking the sum of the power transmission line power of the to-be-scheduled area and the preset step value as the target power transmission line power;

Taking the difference value between the power transmission line power of the area to be scheduled and the preset step value as the target power transmission line power under the condition that the absolute value of the price difference between the marginal clearing price corresponding to the area to be scheduled is larger than the power transmission price corresponding to the area to be scheduled and the marginal clearing price corresponding to the power receiving area is larger than the marginal clearing price corresponding to the power transmitting area;

and acquiring power load data corresponding to the area to be scheduled, and determining the target power net load data according to the target power transmission line power and the power load data corresponding to the area to be scheduled.

In one embodiment, the determining the target power payload data according to the target power transmission line power and the power load data corresponding to the to-be-scheduled area includes:

Screening first power and second power from the target transmission line power; the first power characterizes the power of the electric power output by the areas to be scheduled to the areas except the areas to be scheduled in each area; the second power characterizes the power of the electric power output to the to-be-scheduled area by the areas except the to-be-scheduled area in the areas;

And determining the target power net load data according to the difference value between the power load data corresponding to the area to be scheduled and the first power and the sum between the power load data corresponding to the area to be scheduled and the second power.

In one embodiment, the step of taking the sum of the transmission line power of the area to be scheduled and the preset step value as the target transmission line power includes:

Updating the electric power net load data of each region according to the sum of the power of the electric transmission line of the region to be scheduled and the preset step value, and recording the iteration times;

Returning the cost data and the electric power payload data according to each region, and determining the marginal clearing price corresponding to each region;

And taking the power of the power transmission line of the area to be scheduled as the target power of the power transmission line under the condition that the difference value corresponding to the area to be scheduled is smaller than or equal to zero or the iteration number is larger than a preset iteration number threshold value.

In one embodiment, the taking the difference between the transmission line power of the to-be-scheduled area and the preset step value as the target transmission line power includes:

updating the electric power net load data of each region according to the difference value between the power of the electric transmission line of the region to be scheduled and the preset step value, and recording the iteration times;

and taking the power threshold corresponding to the to-be-scheduled area as the target power of the power transmission line under the condition that the difference value corresponding to the to-be-scheduled area is larger than zero and the power of the power transmission line of the to-be-scheduled area is larger than the power threshold corresponding to the to-be-scheduled area.

In a second aspect, the present application further provides a price-difference-based power trans-provincial trans-regional iterative collaborative scheduling device, including:

The marginal clearing module is used for determining the marginal clearing price corresponding to each region according to the cost data and the electric power payload data of each region;

The difference value determining module is used for obtaining the power transmission price of each area and determining the difference value between the absolute value and the power transmission price according to the absolute value of the price difference between the marginal clearing prices and the power transmission price;

The area determining module is used for screening out the maximum difference value from the difference values, and taking an area corresponding to the maximum difference value as an area to be scheduled;

the power scheduling module is used for iteratively modifying the power transmission line power of the area to be scheduled according to a preset step value to obtain target power net load data and target power transmission line power under the condition that the difference value corresponding to the area to be scheduled is larger than zero and the power transmission line power of the area to be scheduled is smaller than or equal to a power threshold value corresponding to the area to be scheduled; the target power payload data and the target transmission line power are used to control power scheduling between the regions.

In a third aspect, the present application also provides a computer device. The computer device comprises a memory and a processor, the memory storing a computer program which, when executed by the processor, implements the steps of the method described above.

In a fourth aspect, the present application also provides a computer-readable storage medium. The computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the method described above.

In a fifth aspect, the present application also provides a computer program product. The computer program product comprising a computer program which, when executed by a processor, implements the steps of the method described above.

According to the price difference-based power cross-provincial and cross-regional iterative collaborative scheduling method, device, computer equipment, storage medium and computer program product, the marginal clearing price corresponding to each region is determined according to the cost data and the power payload data of each region, so that the marginal clearing price for guiding power scheduling among the regions is determined based on the marginal clearing; acquiring the power transmission price of each region, and determining the difference value between the absolute value and the power transmission price according to the absolute value of the price difference between the marginal clearing prices and the power transmission price, so as to accurately acquire the difference value between the marginal clearing prices and the power transmission price corresponding to each region, and providing the difference value for the data base for the determination of the subsequent power scheduling scheme; screening out the maximum difference value from the difference values, and taking the area corresponding to the maximum difference value as an area to be scheduled, thereby accurately determining the object of power scheduling scheme optimization iteration based on the difference value between the marginal clearing price and the power transmission price; under the condition that the difference value corresponding to the area to be scheduled is larger than zero and the power of the power transmission line of the area to be scheduled is smaller than or equal to the power threshold value corresponding to the area to be scheduled, iteratively modifying the power of the power transmission line of the area to be scheduled according to a preset step value to obtain target power net load data and target power of the power transmission line, and accordingly, under the preset condition, iteratively optimizing and modifying the power of the power transmission line of the area to be scheduled according to the preset step length to obtain accurate target power net load data and target power of the power transmission line; the target power net load data and the target power transmission line power are used for controlling power scheduling among the areas, and under the condition that the power scheduling strategy among the areas meets the preset marginal clearing rule, the power transmission line power of the areas is modified iteratively, so that the power scheduling strategy among the areas is continuously optimized until the marginal clearing price and the power transmission price of the areas meet the corresponding preset conditions, the power scheduling scheme of the areas is modified iteratively based on the price difference between the marginal clearing price and the power transmission price of the areas until the preset convergence condition is met, and the accurate power net load data and the power transmission line power are obtained, so that the accuracy of power scheduling in a power system is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is an application environment diagram of a price-difference-based power cross-provincial cross-regional iterative collaborative scheduling method in one embodiment;

FIG. 2 is a flow chart of a power cross-provincial cross-regional iterative collaborative scheduling method based on price difference in one embodiment;

FIG. 3 is a flow diagram of a price-difference-based power cross-provincial cross-regional iterative collaborative scheduling in one embodiment;

FIG. 4 is a schematic diagram of a transmission line between provinces in one embodiment;

FIG. 5 is a block diagram of a price-difference-based power trans-provincial trans-regional iterative co-scheduling apparatus in one embodiment;

FIG. 6 is an internal block diagram of a computer device in one embodiment.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

The power cross-provincial and cross-regional iterative collaborative scheduling method based on price difference provided by the embodiment of the application can be applied to an application environment shown in figure 1. Wherein the power system 102 communicates with the server 104 via a network. The data storage system may store data that the server 104 needs to process. The data storage system may be integrated on the server 104 or may be located on a cloud or other network server. The server 104 determines a marginal clearing price corresponding to each region according to the cost data and the electric power payload data of each region; the server 104 obtains the power transmission price of each area, and determines the difference between the absolute value and the power transmission price according to the absolute value of the price difference between the marginal clearing prices and the power transmission price; the server 104 screens out the maximum difference value from the difference values, and takes the area corresponding to the maximum difference value as the area to be scheduled; the server 104 iteratively modifies the power transmission line power of the area to be scheduled according to a preset step value under the condition that the difference value corresponding to the area to be scheduled is greater than zero and the power transmission line power of the area to be scheduled is less than or equal to the power threshold value corresponding to the area to be scheduled, so as to obtain target power payload data and target power transmission line power; the target power payload data and the target transmission line power are used to control power scheduling between the regions. The power system 102 may be, but is not limited to, an entirety of a power plant, a transmission line, a distribution substation, and the like in each area. The server 104 may be implemented as a stand-alone server or as a server cluster of multiple servers.

In an exemplary embodiment, as shown in fig. 2, a power cross-provincial and cross-regional iterative collaborative scheduling method based on price difference is provided, and the method is applied to a server for illustration, and it is understood that the method can also be applied to a terminal, can also be applied to a system comprising the terminal and the server, and is realized through interaction of the terminal and the server. In this embodiment, the method includes the steps of:

Step S202, determining the marginal clearing price corresponding to each area according to the cost data and the electric power payload data of each area.

Each area may refer to an area where power scheduling is required, and in practical application, each area may include at least two areas, and each area may include each province and each area.

The cost data may be data representing the cost required for power scheduling in each region.

The electric power payload data may refer to data characterizing the electric power actually supplied by each region, among other things.

The marginal clearing price may refer to a power price of each area determined based on a preset marginal clearing rule, and in practical application, a measurement unit of the marginal clearing price may include yuan/kilowatt-hour.

As an example, to implement optimal configuration of power resources between different areas, collaborative scheduling needs to be performed on the power resources, first, a server obtains cost data and power payload data declared by each area, and the server calculates marginal clearing prices of each area for the power resources based on a preset marginal clearing rule according to the cost data and the power payload data of each area.

Step S204, the power transmission price of each area is obtained, and the difference value between the absolute value and the power transmission price is determined according to the absolute value of the price difference between the marginal clearing prices and the power transmission price.

The power transmission price may refer to a price of transmitting power resources between areas, and in practical application, the power transmission price may represent funds spent for transmitting a preset amount of power resources between areas in a unit time.

The price difference between the marginal clearing prices may refer to a difference between any two marginal clearing prices in the marginal clearing prices of each region.

The difference between the absolute value and the transmission price may be referred to as a difference between the absolute value of the price difference between the marginal clearing prices and the transmission price of each region.

As an example, the server acquires the power transmission price corresponding to each region, taking the region i and the region j as an example, the power transmission price between the region i and the region j may be represented as C _ij,L, the marginal price of the region i may be represented as P _i,C, the marginal price of the region j may be represented as P _j,C, the price difference between the marginal price of the region i and the marginal price of the region j may be represented as P _i,C-P_j,C,P_i,C-P_j,C, the server may determine the difference M-C _ij,L between the absolute value M and the power transmission price C _ij,L according to the absolute value M of the price difference between the marginal price of the region i and the marginal price of the region j and the power transmission price P _i,C of the region i, and similarly may determine the difference between the absolute value of the price difference corresponding to the region j and the power transmission price C _ij,L, and so on, the server may determine the actual application of the difference between the absolute value of the price difference corresponding to each region and the power transmission price by means of the region to be determined, and the specific region to be represented as a model to be scheduled according to the difference:

。

step S206, the maximum difference value is screened out from the difference values, and the area corresponding to the maximum difference value is used as the area to be scheduled.

The maximum difference value may be data with the largest value of the difference values between the absolute value of the price differences between the marginal clearing prices and the power transmission price, in practical application, each region may correspond to the difference value between the absolute value of one price difference and the power transmission price, and the maximum difference value may be determined by sorting the difference values between the absolute value of the price differences corresponding to each region and the power transmission price according to the arrangement sequence from large to small.

The area corresponding to the maximum difference value may refer to an area corresponding to the maximum difference value in each area, and in practical application, since the maximum difference value is determined by a price difference between marginal clearing prices and a power transmission price, the area corresponding to the maximum difference value may include two areas.

The area to be scheduled may be an area where power scheduling scheme formulation is required.

As an example, the server ranks the differences to obtain a ranking result, the server determines the maximum difference according to the ranking result, the server uses the area corresponding to the maximum difference as the area to be scheduled, and the server can perform iterative calculation and optimization on data such as power of the transmission line corresponding to the area to be scheduled.

Step S208, under the condition that the difference value corresponding to the area to be scheduled is larger than zero and the power of the power transmission line of the area to be scheduled is smaller than or equal to the power threshold value corresponding to the area to be scheduled, iteratively modifying the power of the power transmission line of the area to be scheduled according to a preset step value to obtain target electric power payload data and target power of the power transmission line.

The power of the power transmission line may refer to data representing efficiency of the power transmission line corresponding to the area to be scheduled for transmitting the power resource, and in practical application, the power of the power transmission line may include the power resource that can be transmitted by the power transmission line in unit time.

The power threshold may refer to data characterizing an upper power limit of the transmission line, among other things.

The preset step value may be a basis for adjusting the power of the power transmission line.

The target power payload data may be data for controlling power scheduling between the areas, and in practical application, the target power payload data may include data of electric power actually supplied by each area after adjusting a power scheduling scheme (such as power of a transmission line, etc.) of each area.

The target power transmission line power may be data for controlling power scheduling between the areas, and in practical application, the target power transmission line power may include power transmission line power of each area after adjusting a power scheduling scheme (such as power transmission line power) of each area.

As an example, when the difference value corresponding to the to-be-scheduled area (for example, the difference value between the absolute value of the price difference between the marginal clearing prices of the area included in the to-be-scheduled area and the power transmission price corresponding to the to-be-scheduled area) is greater than zero, and the power transmission line power of the to-be-scheduled area is smaller than or equal to the power threshold corresponding to the to-be-scheduled area, the server iteratively modifies the power transmission line power of the to-be-scheduled area according to the preset step value, and after each time the power transmission line power of the to-be-scheduled area is modified, the price difference corresponding to each area is recalculated, and the difference value between the updated price difference value and the corresponding power transmission price is calculated, so that the updated difference value is obtained, until the updated difference value is smaller than or equal to zero, the server takes the power net load data corresponding to each area at the moment as target power net load data, and the power transmission line power corresponding to each area at the moment is taken as target power transmission line power.

In the price difference-based power cross-provincial and cross-regional iterative collaborative scheduling method, the marginal clearing price corresponding to each region is determined according to the cost data and the power payload data of each region, so that the marginal clearing price for guiding power scheduling among the regions is determined based on marginal clearing; acquiring the power transmission price of each region, and determining the difference value between the absolute value and the power transmission price according to the absolute value of the price difference between the marginal clearing prices and the power transmission price, so as to accurately acquire the difference value between the marginal clearing prices and the power transmission price corresponding to each region, and providing the difference value for the data base for the determination of the subsequent power scheduling scheme; screening out the maximum difference value from the difference values, and taking the area corresponding to the maximum difference value as an area to be scheduled, thereby accurately determining the object of power scheduling scheme optimization iteration based on the difference value between the marginal clearing price and the power transmission price; under the condition that the difference value corresponding to the area to be scheduled is larger than zero and the power of the power transmission line of the area to be scheduled is smaller than or equal to the power threshold value corresponding to the area to be scheduled, iteratively modifying the power of the power transmission line of the area to be scheduled according to a preset step value to obtain target power net load data and target power of the power transmission line, and accordingly, under the preset condition, iteratively optimizing and modifying the power of the power transmission line of the area to be scheduled according to the preset step length to obtain accurate target power net load data and target power of the power transmission line; the target power net load data and the target power transmission line power are used for controlling power scheduling among the areas, and under the condition that the power scheduling strategy among the areas meets the preset marginal clearing rule, the power transmission line power of the areas is modified iteratively, so that the power scheduling strategy among the areas is continuously optimized until the marginal clearing price and the power transmission price of the areas meet the corresponding preset conditions, the power scheduling scheme of the areas is modified iteratively based on the price difference between the marginal clearing price and the power transmission price of the areas until the preset convergence condition is met, and the accurate power net load data and the power transmission line power are obtained, so that the accuracy of power scheduling in a power system is improved.

In one exemplary embodiment, the cost data includes unit quote data and declared amount data for each zone, and determining a corresponding marginal price for each zone based on the cost data and the electrical payload data for each zone includes: acquiring at least one candidate marginal clearing price corresponding to each region; determining a ratio between the power payload data of each region and at least one candidate marginal clearing price corresponding to each region; under the condition that the sum of the declaration quantity data of each area is equal to the ratio, determining the product between the unit quotation data and the declaration quantity data of each area to obtain a product set; and under the condition that any product in the product set is smaller than products except any product in the product set, taking the candidate marginal clearing price corresponding to any product as the marginal clearing price corresponding to each region.

The unit quotation data may refer to funds spent by each area for transmitting a preset amount of electric power resources in unit time, and in practical application, the unit quotation data may include a unit quotation range determined by a unit quotation minimum value and a unit quotation maximum value.

The reporting amount data may be data representing the number of power resources that can be transmitted in each region, and in practical application, the reporting amount data may include a reporting amount range determined by a reporting amount minimum value and a reporting amount maximum value.

The candidate marginal payout price may refer to an initial value of a marginal payout price set in advance.

Wherein a ratio between the power payload data of each region and the at least one candidate marginal price per region may refer to a ratio between the power payload data and the candidate marginal price per region.

The sum of the declaration amount data may be data representing the sum of the declaration amount data of each area.

The product set may be a set formed by products between unit quotation data and declaration amount data of each region, and in practical application, each region may correspond to a product between unit quotation data and declaration amount data, and a plurality of products may form a product set.

As an example, based on a preset marginal clearing rule, the server calculates a marginal clearing price corresponding to each region according to unit quotation data and declaration data in cost data of each region and electric power payload data of each region, and in practical application, the server may calculate the marginal clearing price by means of a marginal clearing price determining model, where the marginal clearing price determining model may be expressed as:

。

Wherein, C _i,g may be the unit offer data of the ith area, Q _i,g may be the declaration amount data of the ith area, D _i,net may be the power payload data of the ith area, and P _i,C may be the (candidate) marginal price of the ith area.

And under the condition that the ratio between the electric power payload data and the candidate marginal clearing price is equal to the sum of Shen Baoliang of each region, the server determines the minimum product of products between the unit quotation data corresponding to each region and the declaration quantity data, and the server takes the candidate marginal clearing price corresponding to the minimum product as the marginal clearing price corresponding to each region.

In the embodiment, the clearing price of at least one candidate marginal corresponding to each region is obtained; determining a ratio between the power payload data of each region and at least one candidate marginal clearing price corresponding to each region; under the condition that the sum of the declaration quantity data of each area is equal to the ratio, determining the product between the unit quotation data and the declaration quantity data of each area to obtain a product set; under the condition that any product in the product set is smaller than products except any product in the product set, the candidate marginal clearing price corresponding to any product is used as the marginal clearing price corresponding to each region, the marginal clearing price corresponding to each region can be accurately calculated by utilizing a preset marginal clearing rule by combining cost data and electric power payload data, the accuracy of the marginal clearing price is improved, a data base is provided for adjustment of the electric power scheduling scheme corresponding to each subsequent region, and the accuracy of electric power scheduling in an electric power system is further improved.

In some embodiments, the area to be scheduled includes a power receiving area and a power transmitting area, and iteratively modifying power of the power transmission line of the area to be scheduled according to a preset step value to obtain target power payload data and target power of the power transmission line, including: when the absolute value of the price difference between the marginal clearing prices corresponding to the areas to be scheduled is larger than the power transmission price corresponding to the areas to be scheduled and the marginal clearing price corresponding to the power receiving areas is smaller than or equal to the marginal clearing price corresponding to the power transmitting areas, taking the sum of the power transmission line power of the areas to be scheduled and the preset step length value as the target power transmission line power; taking the difference between the power transmission line power of the area to be scheduled and a preset step value as target power transmission line power under the condition that the absolute value of the price difference between the marginal clearing prices corresponding to the area to be scheduled is larger than the power transmission price corresponding to the area to be scheduled and the marginal clearing price corresponding to the power receiving area is larger than the marginal clearing price corresponding to the power transmitting area; and acquiring power load data corresponding to the area to be scheduled, and determining target power net load data according to the target power transmission line power and the power load data corresponding to the area to be scheduled.

The power receiving area may be an area that receives power resources output by other areas in the power scheduling process.

The power transmission area may be an area in which power resources are output to other areas in the power scheduling process.

The electric power load data may be data of electric power that can be supplied by each region, and in practical application, the electric power load data needs to subtract electric power from other regions and add electric power output to other regions to obtain electric power payload data.

As an example, in a case where an absolute value of a price difference between marginal clearing prices corresponding to the areas to be scheduled (e.g., marginal clearing prices corresponding to each of the power receiving area and the power transmitting area) is greater than a power transmission price corresponding to the areas to be scheduled, and a marginal clearing price P _i,C corresponding to the power receiving area i is less than or equal to a marginal clearing price P _j,C corresponding to the power transmitting area j, the server regards a sum P _ij,L +Δp between a power transmission line power P _ij,L of the areas to be scheduled and a preset step value Δp as a target power transmission line power; when the absolute value of the price difference between the marginal clearing prices corresponding to the to-be-scheduled area (such as the marginal clearing prices corresponding to each of the power receiving area and the power transmitting area) is larger than the power transmission price corresponding to the to-be-scheduled area, and the marginal clearing price P _i,C corresponding to the power receiving area i is larger than the marginal clearing price P _j,C corresponding to the power transmitting area j, the server takes the difference P _ij,L -deltaP between the power transmission line power P _ij,L of the to-be-scheduled area and the preset step value deltaP as the target power transmission line power. The server acquires power load data corresponding to the area to be scheduled, and determines target power net load data according to the target power transmission line power and the power load data corresponding to the area to be scheduled.

In this embodiment, when the absolute value of the price difference between the marginal clearing prices corresponding to the to-be-scheduled area is greater than the power transmission price corresponding to the to-be-scheduled area and the marginal clearing price corresponding to the power receiving area is less than or equal to the marginal clearing price corresponding to the power transmitting area, the sum of the power transmission line power of the to-be-scheduled area and the preset step value is taken as the target power transmission line power; taking the difference between the power transmission line power of the area to be scheduled and a preset step value as target power transmission line power under the condition that the absolute value of the price difference between the marginal clearing prices corresponding to the area to be scheduled is larger than the power transmission price corresponding to the area to be scheduled and the marginal clearing price corresponding to the power receiving area is larger than the marginal clearing price corresponding to the power transmitting area; the power load data corresponding to the area to be scheduled is obtained, the target power net load data is determined according to the target power transmission line power and the power load data corresponding to the area to be scheduled, the power transmission line power and the power net load data can be calculated step by step in an iterative manner based on the step value and combining the magnitude relation between the marginal clearing price corresponding to the power receiving area and the marginal clearing price corresponding to the power transmitting area, so that the power scheduling scheme is optimized, and the accuracy of power scheduling in a power system is improved.

In some embodiments, determining target power payload data from the target transmission line power and the power load data corresponding to the region to be scheduled includes: screening out first power and second power from the target transmission line power; and determining target power net load data according to the difference value between the power load data corresponding to the area to be scheduled and the first power and the sum of the power load data corresponding to the area to be scheduled and the second power.

The first power may be a power representing that the area to be scheduled outputs power resources to an area other than the area to be scheduled among the areas.

The second power may be a power representing that an area other than the area to be scheduled among the areas outputs the power resource to the area to be scheduled.

As an example, when the server screens out the first power of the power resource to be scheduled from the target power transmission line power and outputs the first power of the power resource to the other areas except the area to be scheduled, and the second power of the power resource to be transmitted to the area to be scheduled from the other areas except the area to be scheduled, the server determines the target power payload data according to the difference between the power load data corresponding to the area to be scheduled and the first power and the sum between the power load data corresponding to the area to be scheduled and the second power, and specifically, when the area i to be scheduled outputs the power resource to the other areas except the area i to be scheduled, the target power payload data D _i,net of the area i to be scheduled may be expressed as:

。

Wherein D _i can refer to power load data corresponding to the area i to be scheduled, The first power may be the first power, in practical application, the area i to be scheduled may transmit power resources to a plurality of areas, where the first power may be the sum of the plurality of powers, and P _ij,L may be the power of the transmission line between the area i to be scheduled and the area j to be scheduled; when the power resource is transmitted to the to-be-scheduled area j by other areas than the to-be-scheduled area j, the target power payload data D _j,net of the to-be-scheduled area j may be expressed as:

。

wherein D _j can refer to power load data corresponding to the area j to be scheduled, The second power may refer to second power, in practical application, a plurality of other areas except the area j to be scheduled may be used to transmit power resources to the area j to be scheduled, where the second power may be a sum of a plurality of powers, and P _ij,L may refer to power of a transmission line between the area i to be scheduled and the area j to be scheduled.

In the embodiment, the first power and the second power are screened out from the target transmission line power; according to the difference value between the power load data corresponding to the area to be scheduled and the first power and the sum of the power load data corresponding to the area to be scheduled and the second power, target power net load data is determined, the power net load data of the area to be scheduled can be accurately determined by combining the transmission condition of the scheduling-off resources between the area to be scheduled and other areas, a data basis is provided for adjustment of power scheduling schemes corresponding to the subsequent areas, and therefore accuracy of power scheduling in a power system is improved.

In some embodiments, taking the sum of the transmission line power of the area to be scheduled and the preset step value as the target transmission line power includes: updating the electric power payload data of each region according to the sum of the power of the electric transmission line of the region to be scheduled and a preset step value, and recording the iteration times; returning to the step of determining the marginal clearing price corresponding to each region according to the cost data and the electric power payload data of each region; and taking the power of the power transmission line of the area to be scheduled as the target power of the power transmission line under the condition that the difference value corresponding to the area to be scheduled is smaller than or equal to zero or the iteration number is larger than a preset iteration number threshold value.

The iteration number may refer to the number of modifications or updates of the power payload data.

The iteration number threshold may be preset data for judging whether the iteration number exceeds a preset requirement.

As an example, the server updates the electric power payload data of each area according to the sum between the electric power transmission line power of the area to be scheduled and a preset step size value, and records the iteration number, specifically, when the electric power transmission line power of the area to be scheduled is modified for the first time based on the preset step size value (the electric power transmission line power of the area to be scheduled is added to the preset step size value), the server updates the electric power payload data of each area, at this time, the server sets the iteration number to 1, returns the step of determining the marginal clearing price corresponding to each area according to the cost data and the electric power payload data of each area, determines the price difference between the marginal clearing prices of each area, and when the difference corresponding to the area to be scheduled is greater than zero and the electric power transmission line power of the area to be scheduled is less than or equal to the power threshold corresponding to the area to be scheduled, the server performs the second modification (the electric power transmission line power of the area to be scheduled is added to the preset step size value) based on the preset step size value, and updates the electric power payload data of each area until the iteration number is 2, and the iteration number is equal to or less than the preset threshold as the iteration number under the condition of the electric power threshold.

In the embodiment, updating the electric power net load data of each area according to the sum of the power of the electric transmission line of the area to be scheduled and a preset step value, and recording the iteration times; returning to the step of determining the marginal clearing price corresponding to each region according to the cost data and the electric power payload data of each region; and under the condition that the difference value corresponding to the area to be scheduled is smaller than or equal to zero, or the iteration times are larger than a preset iteration times threshold value, taking the power transmission line power of the area to be scheduled as target power transmission line power, and gradually carrying out iteration updating on the power transmission line power and the power net load data of the area to be scheduled until the preset requirement is met, so that the target power transmission line power is obtained, power scheduling is carried out based on the target power transmission line power, and the accuracy of power scheduling in a power system is improved.

In some embodiments, taking the difference between the transmission line power of the area to be scheduled and the preset step value as the target transmission line power includes: updating the electric power net load data of each area according to the difference between the power of the electric transmission line of the area to be scheduled and a preset step value, and recording the iteration times; returning to the step of determining the marginal clearing price corresponding to each region according to the cost data and the electric power payload data of each region; and taking the power threshold corresponding to the area to be scheduled as the target power of the power transmission line under the condition that the difference value corresponding to the area to be scheduled is greater than zero and the power of the power transmission line of the area to be scheduled is greater than the power threshold corresponding to the area to be scheduled.

As an example, the server updates the electric power payload data of each area according to the difference between the electric power transmission line power of the area to be scheduled and the preset step size value, and records the iteration number, specifically, when the electric power transmission line power of the area to be scheduled is modified for the first time based on the preset step size value (the electric power transmission line power of the area to be scheduled minus the preset step size value), the server updates the electric power payload data of each area, at this time, the server sets the iteration number to 1, returns the step of determining the marginal clearing price corresponding to each area according to the cost data and the electric power payload data of each area, determines the price difference between the marginal clearing prices of each area, and when the difference corresponding to the area to be scheduled is greater than zero and the electric power transmission line power of the area to be scheduled is less than or equal to the power threshold corresponding to the area to be scheduled, the server modifies the electric power of the area to be scheduled for the second time based on the preset step size value (the electric power transmission line power of the area to be scheduled minus the preset step size value), the server sets the iteration number to 2, and so on until the value to be equal to the value is greater than the zero, and the electric power transmission line power of the area to be scheduled corresponds to the threshold value.

In the embodiment, updating the electric power net load data of each area according to the difference value between the power of the electric transmission line of the area to be scheduled and a preset step value, and recording the iteration times; returning to the step of determining the marginal clearing price corresponding to each region according to the cost data and the electric power payload data of each region; under the condition that the difference value corresponding to the area to be scheduled is larger than zero and the power transmission line power of the area to be scheduled is larger than the power threshold value corresponding to the area to be scheduled, the power threshold value corresponding to the area to be scheduled is used as the target power transmission line power, iteration update can be carried out on the power transmission line power and the power net load data of the area to be scheduled step by step until the preset requirement is met, the target power transmission line power is obtained, and therefore power scheduling is carried out based on the target power transmission line power, and the accuracy of power scheduling in a power system is improved.

In some embodiments, fig. 3 provides a flow chart of a price-difference-based power cross-provincial cross-regional iterative collaborative scheduling, as shown in fig. 3, the server may obtain data input by a user (such as cost data and power payload data of each region), where the data input by the user may include node data N of each provincial region, inter-node cross-regional power line L and corresponding capacity upper limit data F _ij, inter-node transprovincially cross-regional power line power P _ij,L, inter-node cross-regional power transmission price data C _ij,L, and each provincial region declaration cost data (including intra-provincial unit price quote C _i,g and corresponding declaration amount data Q _i,g), the server initializes the input data to obtain initial data, calculates marginal clearing prices of all areas according to the initial data based on a preset marginal clearing rule, calculates price differences (price differences between marginal clearing prices) according to the marginal clearing prices and the power transmission prices of all areas, and selects an area corresponding to the largest difference in the determined price differences and the power transmission prices corresponding to all areas as an area to be scheduled, wherein the iteration number is 0, if the price differences are smaller than 0, or the iteration number is larger than the maximum number (iteration number threshold), the server takes the power transmission line power of the area to be scheduled at the moment as target power transmission line power, the server takes the power payload data of the area to be scheduled at the moment as target power payload data; if the difference value corresponding to the area to be scheduled (namely, the difference value between the price difference corresponding to the area to be scheduled and the power transmission price corresponding to the area to be scheduled) is larger than 0, and the iteration number is smaller than the maximum number (iteration number threshold), the server judges whether the power of the power transmission line of the area to be scheduled exceeds the upper power limit (power threshold), when the power of the power transmission line of the area to be scheduled exceeds the upper power limit, the server sets the power transmission price of the area to be scheduled as the maximum value of the power transmission price, and returns to the step of calculating the marginal price of each area according to the initial data based on a preset marginal price rule; when the power of the power transmission line of the area to be scheduled does not exceed the upper power limit, the server adjusts the power of the power transmission line of the area to be scheduled according to the preset step value, updates the power net load data of the area to be scheduled based on the adjusted power transmission line, sets the iteration number to be 1, returns to the step of calculating the marginal clearing price of each area according to the initial data based on the preset marginal clearing rule, recalculates the marginal clearing price until the difference value corresponding to the area to be scheduled is smaller than 0, or the iteration number is larger than the maximum number (iteration number threshold), thereby outputting the target power transmission line power and the target power net load data corresponding to the area to be scheduled, and taking the target transmission line power and the target power net load data as output results, so that related staff can control power scheduling in the power system based on the output results.

The server may perform cooperative scheduling calculation on power scheduling of a power system by using the above-mentioned power trans-provincial trans-regional iterative cooperative scheduling method based on price difference, where the power system includes 5 provinces, fig. 4 provides a schematic diagram of a power transmission line between each province, as shown in fig. 4, power scheduling may be implemented between province a, province B, province C, province D and province E through the power transmission line, and relevant data such as unit quotations, shen Baoliang, power loads and the like of the 5 provinces are shown in table 1:

TABLE 1

The upper limit of the capacity of the trans-provincial trans-regional line corresponding to the 5 provincial regions and the corresponding trans-provincial trans-regional power transmission price are shown in table 2:

TABLE 2

The power scheduling of a certain power system is subjected to cooperative scheduling calculation by adopting the power cross-province and cross-region iterative cooperative scheduling method based on price difference, and the marginal clear prices of each province before and after cooperative scheduling are shown in table 3:

TABLE 3 Table 3

The power payload data of each province before and after co-scheduling is shown in table 4:

TABLE 4 Table 4

In combination with tables 3 and 4, from the point of marginal clear prices of each province, the price of the original high-price province A is reduced to 500 yuan/MWh after cooperative scheduling, and conversely, the price of the low-price province D is increased to 500 yuan/MWh after cooperative scheduling. This is related to the power flow between them, combined with the payload situation analysis, the higher priced province a, after co-scheduling, is subjected to an increase in AD line power, its payload appears to drop, and its marginal clearing price is reduced. In contrast, the price of the D province is lower, the price difference of the D province and other provinces is relatively larger, and the power can be transmitted through the AD line and the DE line, so that the net load of the D province is continuously increased, and finally the marginal clear price of the D province is continuously increased until the D province is the same as the price of other provinces. Therefore, the price difference-based power cross-provincial and cross-regional iterative collaborative scheduling method can make full use of price difference information among provincial and regional to reasonably arrange cross-provincial and cross-regional power transmission plans and scheduling balance. In addition, the price difference-based power cross-provincial and cross-regional iterative collaborative scheduling method spends about 10 seconds on collaborative scheduling of each provincial region, and can fully meet the time requirement of scheduling planning work.

In the embodiment, a price difference-based power system cross-provincial and cross-regional collaborative optimization method is constructed according to the characteristics of a cross-provincial and cross-regional model and the requirements of optimal resource allocation, given step sizes are sequentially and iteratively modified to send out and send in power of nodes at the provincial and cross-regional areas of the two ends according to the maximum principle of social benefit, the corresponding cross-provincial and cross-regional power transmission plan conditions are obtained until convergence conditions are met to obtain collaborative scheduling results, the establishment of the cross-provincial and cross-regional power transmission plan and the power balance scheme is assisted, the power scheduling scheme can be optimized, and the accuracy of power scheduling in the power system is improved.

It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.

Based on the same inventive concept, the embodiment of the application also provides a price-difference-based power cross-provincial cross-regional iterative collaborative scheduling device for realizing the price-difference-based power cross-provincial cross-regional iterative collaborative scheduling method. The implementation scheme of the solution provided by the device is similar to the implementation scheme recorded in the method, so the specific limitation in the embodiments of the one or more power cross-provincial cross-regional iteration cooperative scheduling device based on price difference provided below can be referred to the limitation of the power cross-provincial cross-regional iteration cooperative scheduling method based on price difference hereinabove, and is not repeated here.

In an exemplary embodiment, as shown in fig. 5, there is provided a power trans-provincial trans-regional iterative co-scheduling apparatus based on price difference, including: a marginal clearing module 502, a difference determination module 504, an area determination module 506, and a power scheduling module 508, wherein:

the marginal clearing module 502 is configured to determine a marginal clearing price corresponding to each region according to cost data and power payload data of each region;

a difference determining module 504, configured to obtain a power transmission price of each area, and determine a difference between the absolute value and the power transmission price according to the absolute value of a price difference between the marginal clearing prices and the power transmission price;

The area determining module 506 is configured to screen a maximum difference value from the difference values, and take an area corresponding to the maximum difference value as an area to be scheduled;

The power scheduling module 508 is configured to, when the difference value corresponding to the to-be-scheduled area is greater than zero and the power of the power transmission line of the to-be-scheduled area is less than or equal to the power threshold value corresponding to the to-be-scheduled area, iteratively modify the power of the power transmission line of the to-be-scheduled area according to a preset step value, so as to obtain target power payload data and target power of the power transmission line; the target power payload data and the target transmission line power are used to control power scheduling between the regions.

In an exemplary embodiment, the cost data includes unit offer data and declaration data of each area, and the marginal clearing module 502 is specifically further configured to obtain at least one candidate marginal clearing price corresponding to each area; determining a ratio between the power payload data of each region and at least one candidate marginal price per each region; under the condition that the sum of the declaration quantity data of each area is equal to the ratio, determining the product between the unit quotation data and the declaration quantity data of each area to obtain a product set; and under the condition that any product in the product set is smaller than products except any product in the product set, taking the candidate marginal clearing price corresponding to any product as the marginal clearing price corresponding to each region.

In an exemplary embodiment, the to-be-scheduled area includes a power receiving area and a power transmitting area, where the power scheduling module 508 is specifically further configured to, when an absolute value of a price difference between a marginal clearing price corresponding to the to-be-scheduled area is greater than a power transmission price corresponding to the to-be-scheduled area, and the marginal clearing price corresponding to the power receiving area is less than or equal to the marginal clearing price corresponding to the power transmitting area, take a sum between a power transmission line power of the to-be-scheduled area and the preset step value as the target power transmission line power; taking the difference value between the power transmission line power of the area to be scheduled and the preset step value as the target power transmission line power under the condition that the absolute value of the price difference between the marginal clearing price corresponding to the area to be scheduled is larger than the power transmission price corresponding to the area to be scheduled and the marginal clearing price corresponding to the power receiving area is larger than the marginal clearing price corresponding to the power transmitting area; and acquiring power load data corresponding to the area to be scheduled, and determining the target power net load data according to the target power transmission line power and the power load data corresponding to the area to be scheduled.

In an exemplary embodiment, the power scheduling module 508 is specifically further configured to screen the first power and the second power from the target transmission line power; the first power characterizes the power of the electric power output by the areas to be scheduled to the areas except the areas to be scheduled in each area; the second power characterizes the power of the electric power output to the to-be-scheduled area by the areas except the to-be-scheduled area in the areas; and determining the target power net load data according to the difference value between the power load data corresponding to the area to be scheduled and the first power and the sum between the power load data corresponding to the area to be scheduled and the second power.

In an exemplary embodiment, the power scheduling module 508 is specifically further configured to update power payload data of each area according to a sum between the power of the power transmission line of the area to be scheduled and the preset step value, and record the iteration number; returning the cost data and the electric power payload data according to each region, and determining the marginal clearing price corresponding to each region; and taking the power of the power transmission line of the area to be scheduled as the target power of the power transmission line under the condition that the difference value corresponding to the area to be scheduled is smaller than or equal to zero or the iteration number is larger than a preset iteration number threshold value.

In an exemplary embodiment, the power scheduling module 508 is specifically further configured to update power payload data of each area according to a difference between the power of the power transmission line of the area to be scheduled and the preset step value, and record the iteration number; returning the cost data and the electric power payload data according to each region, and determining the marginal clearing price corresponding to each region; and taking the power threshold corresponding to the to-be-scheduled area as the target power of the power transmission line under the condition that the difference value corresponding to the to-be-scheduled area is larger than zero and the power of the power transmission line of the to-be-scheduled area is larger than the power threshold corresponding to the to-be-scheduled area.

The above-mentioned power cross-provincial cross-regional iterative collaborative scheduling device based on price difference may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.

In an exemplary embodiment, a computer device, which may be a terminal, is provided, and an internal structure diagram thereof may be as shown in fig. 6. The computer device includes a processor, a memory, an input/output interface, a communication interface, a display unit, and an input means. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input/output interface. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input/output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless mode can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program, when executed by a processor, implements a price-difference-based power trans-provincial trans-regional iterative collaborative scheduling method. The display unit of the computer device is used for forming a visual picture, and can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, can also be a key, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.

It will be appreciated by those skilled in the art that the structure shown in FIG. 6 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the computer device to which the present inventive arrangements may be applied, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.

In an embodiment, there is also provided a computer device comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the steps of the method embodiments described above when the computer program is executed.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, carries out the steps of the method embodiments described above.

In an embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the steps of the method embodiments described above.

It should be noted that, the user information (including but not limited to user equipment information, user personal information, etc.) and the data (including but not limited to data for analysis, stored data, presented data, etc.) related to the present application are both information and data authorized by the user or sufficiently authorized by each party, and the collection, use and processing of the related data are required to meet the related regulations.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magneto-resistive random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (PHASE CHANGE Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in various forms such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), etc. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.

Claims

1. The utility model provides a power cross-province cross-region iterative collaborative scheduling method based on price difference, which is characterized by comprising the following steps:

2. The method of claim 1, wherein the cost data includes unit quote data and declared amount data for each of the areas, and wherein the determining the marginal price per each of the areas based on the cost data and the power payload data for each of the areas comprises:

3. The method according to claim 1, wherein the area to be scheduled includes a power receiving area and a power transmitting area, the iteratively modifying the power of the power transmission line of the area to be scheduled according to a preset step value to obtain target power payload data and target power of the power transmission line, including:

4.A method according to claim 3, wherein said determining said target power payload data from said target transmission line power and said power load data corresponding to said area to be scheduled comprises:

5. A method according to claim 3, wherein said taking as the target transmission line power the sum between the transmission line power of the area to be scheduled and the preset step value, comprises:

6. A method according to claim 3, wherein said taking as the target transmission line power the difference between the transmission line power of the area to be scheduled and the preset step value, comprises:

7. A price-difference-based power trans-provincial trans-regional iterative collaborative scheduling apparatus, the apparatus comprising:

8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 6 when the computer program is executed.

9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.

10. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.