Method and device for calculating actual cost of energy

Abstract

The invention discloses an energy actual cost calculation method and device, and the method comprises the steps: carrying out the cost calculation operation of each energy demand point in an energy supply directed topological graph; the measured energy delivery amount of each target delivery pipe section, connected to a target intermediate station corresponding to the energy demand point, on the energy supply directed topological graph and the proportion of the energy amount of each energy supply point in the energy delivery amount of each target delivery pipe section are obtained; obtaining the proportion of the energy quantity of each energy supply point in the energy demand quantity of the energy demand point; and the actual energy cost of the energy demand point is calculated according to the energy demand quantity of the energy demand point, the proportion of the energy quantity of each energy supply point in the energy demand quantity of the energy demand point, the energy supply unit price of each energy supply point and the unit transportation cost for transporting energy of each energy supply point. According to the embodiment of the invention, the actual energy cost of each energy demand point can be accurately obtained.

Description

Technical Field

[0001] The present invention relates to data processing technology, and more particularly to a method and device for calculating the actual cost of energy. Background Art

[0002] With the development of natural gas liquid sales business, the sales industry chain continues to extend and grow. In order to enhance the refined management of production and operation, it is necessary to comprehensively evaluate the actual cost of gas demand points in the supply chain.

[0003] However, due to the complex pipeline network of the supply chain, each gas demand point may require gas from multiple gas supply points, so the actual cost cannot be obtained. Summary of the invention

[0004] The present application provides a method and device for calculating the actual energy cost, which can accurately obtain the actual energy cost of each energy demand point.

[0005] On the one hand, the present application provides a method for calculating the actual cost of energy, including:

[0006] A cost calculation operation is performed on each energy demand point in the energy supply directed topology graph, wherein the energy supply directed topology graph is constructed based on the supply connection relationship between multiple energy supply points and corresponding intermediate stations involved in energy output, the flow connection relationship between multiple intermediate stations involved in energy transmission, and the supply connection relationship between multiple energy demand points and corresponding intermediate stations involved in energy supply, and the cost calculation operation includes:

[0007] According to the energy demand of the energy demand point, the energy delivery amount of each target transmission pipeline section connected to the target intermediate station corresponding to the energy demand point on the energy supply directed topological graph is measured, and the proportion of the energy amount of each energy supply point in the energy delivery amount of each target transmission pipeline section, to obtain the proportion of the energy amount of each energy supply point in the energy demand of the energy demand point;

[0008] The actual energy cost of the energy demand point is calculated based on the energy demand of the energy demand point, the proportion of energy from each energy supply point in the energy demand of the energy demand point, the unit price of energy supply from each energy supply point, the unit transportation cost and transportation mileage of transporting energy to each energy supply point.

[0009] On the other hand, the present application provides a device for calculating actual energy cost, comprising: a memory and a processor;

[0010] The memory is used to store executable programs;

[0011] The processor is used to read and execute the executable program to implement the above-mentioned method for calculating the actual cost of energy.

[0012] Compared with the related art, the present application includes a cost calculation operation for each energy demand point in the directed topology diagram of energy supply: according to the energy demand of the energy demand point, the energy delivery amount of each target transmission pipeline section connected to the target intermediate station corresponding to the energy demand point on the directed topology diagram of energy supply, and the proportion of the energy amount of each energy supply point in the energy delivery amount of each target transmission pipeline section, the proportion of the energy amount of each energy supply point in the energy demand of the energy demand point is obtained; according to the energy demand of the energy demand point, the proportion of the energy amount of each energy supply point in the energy demand of the energy demand point, the energy supply unit price of each energy supply point, the unit transportation cost of transporting the energy of each energy supply point and the transportation mileage, the actual energy cost of the energy demand point is calculated. The embodiment of the present application can clarify the proportion of the energy amount from each energy supply point in the energy demand of each energy demand point, and then obtain the actual energy cost of each energy demand point based on the obtained proportion, which can reflect the energy acquisition situation of each energy demand point, thereby realizing the accurate acquisition of the actual energy cost of each energy demand point.

[0013] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by implementing the present application. Other advantages of the present application can be realized and obtained by the schemes described in the description and the drawings.

[0014] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by implementing the present application. Other advantages of the present application can be realized and obtained by the schemes described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0016] Figure 1 A schematic diagram of a flow chart of a method for calculating actual energy cost according to an embodiment of the present application;

[0017] Figure 2 This is a schematic diagram of a directed topology of energy supply according to an embodiment of the present application;

[0018] Figure 3 This is a flow chart of a benefit analysis method for a liquid industry chain of an LNG plant according to an embodiment of the present application. DETAILED DESCRIPTION

[0019] The present application describes multiple embodiments, but the description is exemplary rather than restrictive, and it is obvious to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present application. Although many possible feature combinations are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0020] The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in the present application may also be combined with any conventional features or elements to form a unique invention scheme defined by the claims. Any features or elements of any embodiment may also be combined with features or elements from other invention schemes to form another unique invention scheme defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in the present application may be implemented individually or in any appropriate combination. Therefore, except for the limitations made according to the attached claims and their equivalents, the embodiments are not subject to other restrictions. In addition, various modifications and changes may be made within the scope of protection of the attached claims.

[0021] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described herein, the method or process should not be limited to the steps of the specific order described. As will be understood by those of ordinary skill in the art, other sequences of steps are also possible. Therefore, the specific sequence of the steps set forth in the specification should not be interpreted as a limitation to the claims. In addition, the claims for the method and / or process should not be limited to the steps of performing them in the order written, and those skilled in the art can easily understand that these sequences can be changed and still remain within the spirit and scope of the embodiments of the present application.

[0022] The present application embodiment provides a method for calculating the actual cost of energy. Figure 1 As shown, including:

[0023] A cost calculation operation is performed on each energy demand point in the energy supply directed topology graph, wherein the energy supply directed topology graph is constructed based on the supply connection relationship between multiple energy supply points and corresponding intermediate stations involved in energy output, the flow connection relationship between multiple intermediate stations involved in energy transmission, and the supply connection relationship between multiple energy demand points and corresponding intermediate stations involved in energy supply, and the cost calculation operation includes:

[0024] Step 101: According to the energy demand of the energy demand point, the energy delivery amount of each target transmission pipeline section connected to the target intermediate station corresponding to the energy demand point on the energy supply directed topology graph is measured, and the proportion of the energy amount of each energy supply point in the energy delivery amount of each target transmission pipeline section, the proportion of the energy amount of each energy supply point in the energy demand of the energy demand point is obtained:

[0025] Step 102: Calculate the actual energy cost of the energy demand point based on the energy demand of the energy demand point, the proportion of the energy of each energy supply point in the energy demand of the energy demand point, the energy supply unit price of each energy supply point, the unit transportation cost and transportation mileage of transporting energy to each energy supply point.

[0026] The directed topology diagram of energy supply includes: energy supply points, intermediate stations and energy demand points, wherein multiple intermediate stations are interconnected through transmission pipe sections to form a network with a flow relationship. For each intermediate station in the network, the intermediate station may correspond to an energy supply point, that is, the energy supply point accesses the network through the corresponding intermediate station and provides energy to the energy demand point in the network, or the intermediate station may correspond to an energy demand point, the energy demand point accesses the network through the corresponding intermediate station and obtains energy from the energy supply point in the network, or the intermediate station may correspond to neither an energy supply point nor an energy demand point.

[0027] There are often multiple energy demand points in the directed topology graph of energy supply, and the above cost calculation operation needs to be performed on each energy demand point.

[0028] It should be noted that the energy source may be oil or gas, and the gas may be liquefied natural gas (LNG).

[0029] After the actual energy cost of each energy demand point is calculated, the benefit of each energy demand point can be further calculated based on the operating income of each energy demand point.

[0030] The method for calculating the actual energy cost provided in the embodiment of the present application can clarify the proportion of energy from each energy supply point in the energy demand of each energy demand point, and then obtain the actual energy cost of each energy demand point based on the obtained proportion, which can reflect the energy acquisition situation of each energy demand point, thereby achieving accurate acquisition of the actual energy cost of each energy demand point.

[0031] In an exemplary embodiment, the proportion of the energy amount of each energy supply point in the energy delivery amount of each target delivery pipeline section is obtained by:

[0032] For each target transmission pipeline section connected to the target intermediate station corresponding to the energy demand point, the following operations are performed respectively:

[0033] Based on the energy output of each energy supply point and according to the change in the proportion of the energy amount of each energy supply point in the energy delivery amount of different intermediate transmission pipeline sections during the transportation process, the proportion of the energy amount of each energy supply point in the energy delivery amount of the target transmission pipeline section is obtained; wherein the intermediate transmission pipeline section is a series of transmission pipeline sections that the energy of each energy supply point must pass through from its respective corresponding starting intermediate station to enter the target transmission pipeline section.

[0034] There may be multiple target transmission pipeline sections connected to the target intermediate station corresponding to the energy demand point. For each target transmission pipeline section of the target intermediate station corresponding to the energy demand point, it is necessary to obtain the proportion of the energy amount of each energy supply point in the energy transmission amount of the target transmission pipeline section.

[0035] The energy of each energy supply point must pass through a series of transmission pipeline segments (referred to as intermediate transmission pipeline segments in the embodiment of the present application) from its corresponding starting intermediate station to enter the target transmission pipeline segment. After the energy of each energy supply point enters the energy supply directed topology graph, its proportion in different intermediate transmission pipeline segments may change.

[0036] In an exemplary embodiment, based on the energy output of each energy supply point and according to the change in the proportion of the energy amount of each energy supply point in the energy delivery amount of different intermediate delivery pipeline sections during the delivery process, obtaining the proportion of the energy amount of each energy supply point in the energy delivery amount of the target delivery pipeline section includes:

[0037] For each target energy supply point on the target transmission pipeline section connected to the target intermediate station corresponding to the energy demand point, the following operations are performed respectively:

[0038] Based on the energy output of the target energy supply point, and in accordance with the change in the proportion of the energy of the target energy supply point in the energy transportation volume of different intermediate transmission pipeline sections due to the participation of energy from new energy supply points during the transportation process, the proportion of the energy of the target energy supply point in the energy transportation volume of the target transmission pipeline section is obtained when the energy of the target energy supply point reaches the target transmission pipeline section.

[0039] The target pipeline section may have energy from multiple energy supply points (the energy supply points are referred to as target energy supply points in the embodiment of the present application). For each target energy supply point on the target pipeline section, the proportion of the energy amount of the target energy supply point in the energy delivery amount of the target delivery pipeline section is required.

[0040] In an exemplary embodiment, based on the energy output of the target energy supply point and according to the change in the proportion of the energy amount of the target energy supply point in the energy delivery amount of different intermediate delivery pipeline sections caused by the participation of energy from a new energy supply point during the delivery process, obtaining the proportion of the energy amount of the target energy supply point in the energy delivery amount of the target delivery pipeline section when the energy of the target energy supply point reaches the target delivery pipeline section includes:

[0041] First, according to whether there is an intermediate transmission pipeline section upstream of the initial intermediate station corresponding to the target energy supply point, the proportion of the energy amount of the target energy supply point in the intermediate transmission pipeline section downstream of the initial intermediate station corresponding to the target energy supply point is obtained;

[0042] Secondly, if the intermediate transmission pipeline section downstream of the initial intermediate station corresponding to the target energy supply point is the target transmission pipeline section, the obtained proportion will be used as the proportion of the energy amount of the target energy supply point in the energy transmission amount of the target transmission pipeline section.

[0043] In an exemplary embodiment, the method further comprises:

[0044] If the intermediate transmission pipeline section downstream of the initial intermediate station corresponding to the target energy supply point is not the target transmission pipeline section, the intermediate station downstream of the initial intermediate station corresponding to the target energy supply point is used as the current intermediate station, and the intermediate transmission pipeline section downstream of the current intermediate station is used as the current intermediate transmission pipeline section, and the following proportion acquisition operation is performed:

[0045] First, determine whether the current intermediate station corresponds to a new energy supply point;

[0046] Secondly, if the current intermediate station does not correspond to the new energy supply point, the proportion of the energy amount of the target energy supply point in the energy delivery amount of the intermediate transmission pipeline section upstream of the current intermediate station is used as the proportion of the energy amount of the target energy supply point in the energy delivery amount of the intermediate transmission pipeline section downstream of the current intermediate station;

[0047] Thirdly, if the current intermediate station corresponds to a new energy supply point, the proportion of the energy of the target energy supply point in the energy delivery of the current intermediate transmission section after the energy of the new energy supply point is input to the current intermediate station is calculated according to the energy output of the new energy supply point, the energy delivery of the intermediate transmission pipeline section upstream of the current intermediate station, and the proportion of the energy of the target energy supply point in the energy delivery of the intermediate transmission pipeline section upstream of the current intermediate station;

[0048] Finally, the intermediate station downstream of the current intermediate station is taken as the new current intermediate station, and the intermediate transmission pipeline section downstream of the new current intermediate station is taken as the new current intermediate transmission pipeline section, and the proportion acquisition operation is continued until the new intermediate transmission pipeline section downstream of the current intermediate station is the target transmission pipeline section, and the proportion of the energy amount of the target energy supply point in the energy transmission amount of the new current intermediate transmission pipeline section finally obtained is taken as the proportion of the energy amount of the target energy supply point in the energy transmission amount of the target transmission pipeline section.

[0049] In an exemplary embodiment, the step of obtaining the proportion of the energy amount of the target energy supply point in the intermediate transmission pipeline section downstream of the initial intermediate station corresponding to the target energy supply point according to whether there is an intermediate transmission pipeline section upstream of the initial intermediate station corresponding to the target energy supply point includes:

[0050] First, if there is no intermediate transmission pipeline section upstream of the initial intermediate station corresponding to the target energy supply point, determine that the energy transmission volume of the intermediate transmission pipeline section downstream of the initial intermediate station corresponding to the target energy supply point accounts for 100% of the energy volume of the target energy supply point;

[0051] Secondly, if there is an intermediate transmission pipeline section upstream of the initial intermediate station corresponding to the target energy supply point, the proportion of the energy of the target energy supply point in the energy transmission volume of the intermediate transmission pipeline section downstream of the initial intermediate station is calculated based on the energy output of the target energy supply point and the energy transmission volume of the intermediate transmission pipeline section upstream of the initial intermediate station corresponding to the target energy supply point.

[0052] If the current intermediate station does not have an upstream intermediate transmission pipeline section, it means that the current intermediate station is the first intermediate station in the energy supply directed topology graph, and the target energy supply point corresponding to the current intermediate station is the first energy supply point in the energy supply directed topology graph. Therefore, the energy amount of the target energy supply point in the current intermediate transmission pipeline section accounts for 100%.

[0053] If the current intermediate station has an intermediate transmission pipeline section upstream, it means that the current intermediate station is not the first intermediate station in the directed topology diagram of energy supply, and there must be other energy supply points upstream of the target energy supply point. Therefore, it is necessary to calculate the proportion of the energy of the target energy supply point in the current intermediate transmission pipeline section based on the energy output of the target energy supply point and the energy transmission volume of the upstream transmission pipeline section of the current intermediate station.

[0054] In an exemplary embodiment, the method of calculating the proportion of the energy amount of the target energy supply point in the energy delivery amount of the current intermediate transmission pipeline section after the energy of the new energy supply point is input to the current intermediate station according to the energy output of the new energy supply point, the energy delivery amount of the intermediate transmission pipeline section upstream of the current intermediate station, and the proportion of the energy amount of the target energy supply point in the energy delivery amount of the intermediate transmission pipeline section upstream of the current intermediate station, comprises:

[0055] First, the energy amount of the target energy supply point in the energy delivery amount of the intermediate transmission pipeline section upstream of the current intermediate station is calculated according to the energy delivery amount of the intermediate transmission pipeline section upstream of the current intermediate station and the proportion of the energy amount of the target energy supply point in the energy delivery amount of the intermediate transmission pipeline section upstream of the current intermediate station;

[0056] Secondly, the energy delivery volume of the current intermediate station after the energy of the new energy supply point is input to the current intermediate station is calculated according to the energy output of the new energy supply point and the energy delivery volume of the intermediate transmission pipeline section upstream of the current intermediate station;

[0057] Finally, the proportion of the energy amount of the target energy supply point in the energy delivery amount of the intermediate transmission pipeline section upstream of the current intermediate station and the energy delivery amount of the current intermediate station after the energy of the new energy supply point is input into the current intermediate station is calculated, and the proportion of the energy amount of the target energy supply point in the energy delivery amount of the current intermediate station obtained is used as the proportion of the energy amount of the target energy supply point in the energy delivery amount of the current intermediate transmission pipeline section.

[0058] The following is a specific example to illustrate how to obtain the proportion of the energy demand of each energy demand point to the energy supply point. In this example, the energy specifically refers to LNG. Figure 2 As shown, the energy supply points in the directed topology diagram of energy supply include three gas source points A, B, and C (marked with triangles), the energy output is specifically the gas output, which is 500, 300, and 200 respectively, and the energy demand points are specifically LNG plants, including LNG1 and LNG2 (marked with hexagons), and also include five intermediate stations K1, K2, K3, K4, and K5 (marked with round black dots).

[0059] For LNG1:

[0060] The target intermediate station corresponding to LNG1 is K3. There is only one target pipeline section connected to K3, namely K2K3. It is necessary to determine the proportion of the energy volume of each energy supply point in the energy transportation volume of the pipeline section K2K3, namely the proportion of the gas volume of the gas source point A in the gas transportation volume of the pipeline section K2K3, and the proportion of the gas volume of the gas source point B in the gas transportation volume of the pipeline section K2K3.

[0061] The proportion of the gas volume at the gas source point A in the gas volume of the delivery pipe section K2K3 is determined as follows:

[0062] There is no intermediate pipeline section upstream of the initial intermediate station (i.e. K1) corresponding to the gas source point A. Therefore, it is determined that the proportion of the energy amount of the gas source point A in the gas volume transported by the intermediate pipeline section (i.e. K1K2) downstream of the initial intermediate station (i.e. K1) corresponding to the gas source point A is 100%. Then, since the intermediate pipeline section (i.e. K1K2) downstream of the initial intermediate station (i.e. K1) corresponding to the gas source point A is not the target pipeline section (i.e. K2K3), the intermediate station (i.e. K2) downstream of the initial intermediate station (i.e. K1) corresponding to the gas source point A is taken as the current intermediate station, and the intermediate pipeline section (i.e. K2K3) downstream of the current intermediate station (i.e. K2) is taken as the current intermediate pipeline section, and the following proportion acquisition operation is performed: determine whether the current intermediate station (i.e. K2) corresponds to a new gas source point. After determination, it is determined that the current intermediate station (i.e. K2) corresponds to a new gas source point (i.e. gas source point B). Therefore, it is necessary to obtain the proportion of the gas source point according to the new intermediate station (i.e. K2). The energy output of the gas source point, the gas volume of the intermediate transmission pipeline section (i.e. K1K2) upstream of the current intermediate station (i.e. K2), and the proportion of the gas volume of the gas source point A in the gas volume of the intermediate transmission pipeline section (i.e. K1K2) upstream of the current intermediate station (i.e. K2), calculate the proportion of the gas volume of the gas source point A in the gas volume of the current intermediate transmission pipeline section (i.e. K2K3) after the gas from the new gas source point (i.e. gas source point B) is input to the current intermediate station (i.e. K2), that is, 500*100%=500, 500 / (500+300)=5 / 8, next, since the intermediate transmission pipeline section (i.e. K2K3) downstream of the current intermediate station (i.e. K2) is the target transmission pipeline section, the proportion of the gas volume of the gas source point A in the gas volume of the current intermediate transmission pipeline section finally obtained, which is 5 / 8, is used as the proportion of the gas volume of the gas source point A in the gas volume of the target transmission pipeline section K2K3.

[0063] Determine the proportion of the gas volume at the gas source point B in the gas volume of the delivery pipe section K2K3. The process is as follows:

[0064] The initial intermediate station (i.e. K2) corresponding to the gas source point B has an upstream intermediate pipeline section. Therefore, the proportion of the gas volume of the gas source point B in the gas volume of the downstream pipeline section of K2 (i.e. K2K3) is calculated based on the gas output of the gas source point B and the gas volume of the upstream pipeline section of K2 (i.e. K1K2), that is, 300 / (500+300)=3 / 8.

[0065] For LNG2:

[0066] The target intermediate station corresponding to LNG2 is K5. There are two target pipeline sections connected to K5, namely K3K5 and K4K5. It is necessary to determine the proportion of the energy amount of each energy supply point in the energy transportation volume of the pipeline section K3K5, namely the proportion of the gas amount of gas source point A in the transportation volume of the pipeline section K3K5, and the proportion of the gas amount of gas source point B in the transportation volume of the pipeline section K3K5; determine the proportion of the energy amount of each energy supply point in the energy transportation volume of the pipeline section K4K5, namely the proportion of the gas amount of gas source point A in the transportation volume of the pipeline section K4K5, the proportion of the gas amount of gas source point B in the transportation volume of the pipeline section K4K5, and the proportion of the gas amount of gas source point C in the transportation volume of the pipeline section K4K5.

[0067] The process of determining the proportion of the gas volume at the gas source point A in the gas volume of the delivery pipe section K3K5 is as follows:

[0068] The initial intermediate station (i.e. K1) corresponding to the gas source point A does not have an intermediate transmission pipeline section upstream, so it is determined that the proportion of the energy amount of the gas source point A in the transmission gas volume of the intermediate transmission pipeline section (i.e. K1K2) downstream of the initial intermediate station (i.e. K1) corresponding to the gas source point A is 100%, and then because the intermediate transmission pipeline section (i.e. K1K2) downstream of the initial intermediate station (i.e. K1) corresponding to the gas source point A is not the target transmission pipeline section (i.e. K3K5), the intermediate station (i.e. K2) downstream of the initial intermediate station (i.e. K1) corresponding to the gas source point A is taken as At the current intermediate station, the intermediate transmission pipeline section (i.e. K2K3) downstream of the current intermediate station (i.e. K2) is used as the current intermediate transmission pipeline section, and the following proportion acquisition operation is performed: determine whether the current intermediate station (i.e. K2) corresponds to a new gas source point. After determination, it is determined that the current intermediate station (i.e. K2) corresponds to a new gas source point (i.e. gas source point B). Therefore, it is necessary to calculate the proportion of the gas source point according to the energy output of the new gas source point, the gas volume of the intermediate transmission pipeline section (i.e. K1K2) upstream of the current intermediate station (i.e. K2), and the intermediate transmission pipeline section upstream of the current intermediate station (i.e. K2). The proportion of the gas volume of the gas source point A in the gas volume of the current intermediate transmission pipeline section (i.e., K1K2) is calculated, and the proportion of the gas volume of the gas source point A in the gas volume of the current intermediate transmission pipeline section (i.e., K2K3) after the gas of the new gas source point (i.e., gas source point B) is input to the current intermediate station (i.e., K2), that is, 500*100%=500, 500 / (500+300)=5 / 8. Next, the intermediate station (i.e., K3) downstream of the current intermediate station (i.e., K2) is taken as the new current intermediate station, and the intermediate station downstream of the new current intermediate station (i.e., K3) is taken as the new current intermediate station. The transmission pipeline section (i.e. K3K5) is the new current intermediate transmission pipeline section, and the following proportion acquisition operation is performed: determine whether the current intermediate station (i.e. K3) corresponds to the new gas source point. After determination, it is determined that the current intermediate station (i.e. K3) does not correspond to the new gas source point. Therefore, the proportion of the gas volume of the gas source point A in the transmission gas volume of the intermediate transmission pipeline section (K2K3) upstream of the current intermediate station (i.e. K3) (i.e. 5 / 8) is used as the proportion of the gas volume of the gas source point A in the transmission gas volume of the intermediate transmission pipeline section (i.e. K3K5) downstream of the current intermediate station (i.e. K3).

[0069] Determine the proportion of the gas volume at the gas source point B in the gas volume of the delivery pipe section K3K5. The process is as follows:

[0070] The initial intermediate station (i.e. K2) corresponding to the gas source point B has an upstream intermediate pipeline section. Therefore, the proportion of the gas volume of the downstream pipeline section (i.e. K2K3) of K2 in the gas volume of the downstream pipeline section (i.e. K2K3) of K2 is calculated according to the gas output of the gas source point B and the gas volume of the upstream pipeline section (i.e. K1K2) of K2, that is, 300 / (500+300)=3 / 8. Next, since the intermediate pipeline section (i.e. K2K3) downstream of the initial intermediate station (i.e. K2) corresponding to the gas source point B is not the target pipeline section (i.e. K3K5), the intermediate pipeline section (i.e. K2K3) downstream of the initial intermediate station (i.e. K2) corresponding to the gas source point B is converted into the target pipeline section (i.e. K3K5). Take the intermediate station (i.e. K3) as the current intermediate station, and take the intermediate transmission pipe section (i.e. K3K5) downstream of the current intermediate station (i.e. K3) as the current intermediate transmission pipe section, and perform the following proportion acquisition operation: judge whether the current intermediate station (i.e. K3) corresponds to a new gas source point. After judgment, it is determined that the current intermediate station (i.e. K3) does not correspond to a new gas source point. Therefore, the proportion (i.e. 3 / 8) of the gas volume of the gas source point B in the gas volume of the intermediate transmission pipe section (K2K3) upstream of the current intermediate station (i.e. K3) is taken as the proportion of the gas volume of the gas source point B in the gas volume of the intermediate transmission pipe section (i.e. K3K5) downstream of the current intermediate station (i.e. K3).

[0071] The process of determining the proportion of the gas volume at the gas source point A in the gas volume delivered by the delivery pipe section K4K5 is as follows:

[0072] The initial intermediate station (i.e. K1) corresponding to the gas source point A does not have an intermediate transmission pipe section upstream, so it is determined that the proportion of the energy amount of the gas source point A in the transmission gas volume of the intermediate transmission pipe section (i.e. K1K2) downstream of the initial intermediate station (i.e. K1) corresponding to the gas source point A is 100%, and then because the intermediate transmission pipe section (i.e. K1K2) downstream of the initial intermediate station (i.e. K1) corresponding to the gas source point A is not the target transmission pipe section (i.e. K4K5), the intermediate station (i.e. K2) downstream of the initial intermediate station (i.e. K1) corresponding to the gas source point A is taken as the current intermediate station, and the intermediate transmission pipe section downstream of the current intermediate station (i.e. K2) is taken as the target transmission pipe section. The section (i.e., K2K4) is taken as the current intermediate transmission pipeline section, and the following proportion acquisition operation is performed: it is determined whether the current intermediate station (i.e., K2) corresponds to the new gas source point. After determination, it is determined that the current intermediate station (i.e., K2) corresponds to the new gas source point (i.e., gas source point B). Therefore, it is necessary to calculate the gas input of the new gas source point (i.e., gas source point B) to the current intermediate station (i.e., K2) according to the energy output of the new gas source point, the gas volume of the intermediate transmission pipeline section (i.e., K1K2) upstream of the current intermediate station (i.e., K2), and the proportion of the gas volume of the gas source point A in the gas volume of the intermediate transmission pipeline section (i.e., K1K2) upstream of the current intermediate station (i.e., K2). The proportion of the gas volume of the gas source point A in the gas volume of the current intermediate transmission pipeline section (i.e. K2K4) after the current intermediate station (i.e. K2) is 500*100%=500, 500 / (500+300)=5 / 8. Next, the intermediate station (i.e. K4) downstream of the current intermediate station (i.e. K2) is taken as the new current intermediate station, and the intermediate transmission pipeline section downstream of the new current intermediate station (i.e. K4) is taken as the new current intermediate transmission pipeline section (i.e. K4K5). The following proportion acquisition operation is performed: determine whether the current intermediate station (i.e. K4) corresponds to the new gas source point, and determine whether the current intermediate station (i.e. K4) corresponds to the new gas source point. The gas source point (i.e., gas source point C) is therefore required to calculate the proportion of the gas volume of the gas source point A in the gas volume of the current intermediate transmission pipeline section (i.e., K4K5) after the gas from the new gas source point (i.e., gas source point C) is input to the current intermediate station (i.e., K4) based on the energy output of the new gas source point, the gas volume of the intermediate transmission pipeline section (i.e., K2K4) upstream of the current intermediate station (i.e., K4), and the proportion of the gas volume of the gas source point A in the gas volume of the intermediate transmission pipeline section (i.e., K2K4) upstream of the current intermediate station (i.e., K4), i.e., 400*5 / 8=250, 250 / (400+200)=5 / 12.

[0073] Determine the proportion of the gas volume at the gas source point B in the gas volume of the delivery pipe section K4K5. The process is as follows:

[0074] The initial intermediate station (i.e. K2) corresponding to the gas source point B has an intermediate pipeline section upstream. Therefore, the proportion of the gas volume of the downstream pipeline section (i.e. K2K3) of K2 in the gas volume is calculated according to the gas output of the gas source point B and the gas volume of the upstream pipeline section (i.e. K1K2) of K2, that is, 300 / (500+300)=3 / 8. Next, since the intermediate pipeline section (i.e. K2K4) downstream of the initial intermediate station (i.e. K2) corresponding to the gas source point B is not the target pipeline section (i.e. K4K5), the intermediate station (i.e. K4) downstream of the initial intermediate station (i.e. K2) corresponding to the gas source point B is taken as the current intermediate station, and the intermediate pipeline section (i.e. K4K5) downstream of the current intermediate station (i.e. K4) is taken as the current intermediate pipeline section. The delivery pipe section performs the following proportion acquisition operation: determine whether the current intermediate station (i.e. K4) corresponds to a new gas source point. After determination, it is determined that the current intermediate station (i.e. K4) corresponds to a new gas source point. Therefore, it is necessary to calculate the proportion of the gas volume of the new gas source point (i.e. gas source point C) in the gas volume of the current intermediate transmission pipe section (i.e. K4K5) in the gas volume of the gas source point B after the gas from the new gas source point (i.e. gas source point C) is input to the current intermediate station (i.e. K4), based on the energy output of the new gas source point, the gas volume of the intermediate transmission pipe section (i.e. K2K4) upstream of the current intermediate station (i.e. K4), and the gas volume of the intermediate transmission pipe section (i.e. K2K4) upstream of the current intermediate station (i.e. K4). That is, 400*3 / 8=150, 150 / (400+200)=1 / 4.

[0075] Determine the proportion of the gas volume at the gas source point C in the gas volume of the delivery pipe section K4K5. The process is as follows:

[0076] The initial intermediate station (i.e. K4) corresponding to the gas source point C has an upstream intermediate pipeline section. Therefore, the proportion of the gas volume of the gas source point C in the gas volume of the downstream pipeline section (i.e. K4K5) of K4 is calculated based on the gas output of the gas source point C and the gas volume of the upstream pipeline section (i.e. K2K4) of K4, that is, 200 / (400+200)=1 / 3.

[0077] In an exemplary embodiment, the actual energy cost includes: energy purchase cost and energy transportation cost;

[0078] The actual energy cost of the energy demand point is calculated according to the energy demand of the energy demand point, the proportion of the energy of each energy supply point in the energy demand of the energy demand point, the energy supply unit price of each energy supply point and the unit transportation cost of transporting the energy of each energy supply point, including:

[0079] First, the energy procurement cost of the energy demand point is calculated based on the proportion of the energy amount of each energy supply point in the demand amount of the energy demand point and the gas supply unit price of each energy supply point;

[0080] The energy transportation cost of the energy demand point is calculated based on the demand of the energy demand point, the proportion of the energy of each energy supply point in the demand of the energy demand point, all intermediate transmission pipeline sections through which each energy supply point transmits energy to the energy demand point, and the unit transportation cost and transportation mileage of each intermediate transmission pipeline section.

[0081] In an exemplary embodiment, the energy transportation cost of the energy demand point is calculated based on the demand of the energy demand point, the proportion of the energy amount of each energy supply point in the demand of the energy demand point, all intermediate transmission pipeline sections through which each energy supply point transmits energy to the energy demand point, and the unit transportation cost and transportation mileage of each intermediate transmission pipeline section, including:

[0082] First, the amount of energy from each energy supply point in the demand of the energy demand point is calculated according to the demand of the energy demand point and the proportion of the energy amount of each energy supply point in the demand of the energy demand point;

[0083] Secondly, for the amount of energy from each energy supply point, the following operations are performed: the intermediate transportation cost required to transport the amount of energy from the energy supply point from the energy supply point to the energy demand point is calculated based on the amount of energy from the energy supply point, all the transmission pipeline sections through which the energy from the energy supply point is transported to the energy demand point, and the unit transportation cost and transportation mileage of each transmission pipeline section;

[0084] Finally, the energy transportation cost of each energy demand point is calculated based on the intermediate transportation cost required to transport the energy from each energy supply point to the energy demand point.

[0085] Still Figure 2 For example, assume that the unit transportation cost of the K1K2 pipeline section is q1, and the transportation mileage is l1; the unit transportation cost of the K2K3 pipeline section is q2, and the transportation mileage is l2; the unit transportation cost of the K2K4 pipeline section is q3, and the transportation mileage is l3; the unit transportation cost of the K3K5 pipeline section is q4, and the transportation mileage is l4; the unit transportation cost of the K4K5 pipeline section is q5, and the transportation mileage is l5. The specific process of calculating the natural gas transportation cost of LNG1 and LNG2 is as follows:

[0086] (1) Calculate the transportation cost from gas source A to LNG1. Specifically, there is a transportation route from gas source A to LNG1, which is K1K2->K2K3. The corresponding energy transportation cost of transporting 125 gas from source A to LNG1 is C1=q1*l1*125+q2*l2*125.

[0087] (2) Calculate the transportation cost from gas source B to LNG1. Specifically, there is a transportation route from gas source B to LNG1, which is K2K3. The corresponding energy transportation cost of transporting 75 gas source B to LNG1 is C2 = q2*l2*75.

[0088] (3) Calculate the transportation cost from gas source A to LNG2. Specifically, there are two transportation routes from gas source A to LNG2. One is K1K2->K2K4->K4K5, which transports 250 kg of gas from source A to LNG2, and the corresponding transportation cost is C3 = q1*l1*250+q3*l3*250+q5*l5*250; the other is K1K2->K2K3->K3K5, which transports 125 kg of gas from source A to LNG2, and the corresponding transportation cost is C4 = q1*l1*125+q2*l2*125+q4*l4*125.

[0089] (4) Calculate the transportation cost from gas source B to LNG2. Specifically, there are two transportation paths from gas source B to LNG2. One is K2K4->K4K5, which delivers 150 of gas source B to LNG2, and the corresponding transportation cost is C5 = q3*l3*150+q5*l5*150; the other is K2K3->K3K5, which delivers 75 of gas source B to LNG2, and the corresponding transportation cost is C6 = q2*l2*75+q4*l4*75.

[0090] (5) Calculate the transportation cost from gas source C to LNG2. Specifically, gas source C to LNG2 includes a transportation route, K4K5, and 200 gas source C is transported to LNG2, and the corresponding transportation cost is C7=q5*l5*200;

[0091] (6) The transportation cost C1 from gas source A to LNG1 is summed with the transportation cost C2 from gas source B to LNG1 to obtain the natural gas transportation cost of LNG1.

[0092] (7) The transportation costs C3 and C4 from gas source A to LNG2, the transportation costs C5 and C6 from gas source B to LNG2, and the transportation cost C7 from gas source C to LNG2 are summed to obtain the natural gas transportation cost of LNG2.

[0093] Each LNG plant has different business models, such as commissioned processing model, self-operated model, etc. Different business models use different economic benefit calculation methods. In addition, in this embodiment, the overall benefit of the LNG plant = the benefit of the wholesale link + the benefit of the LNG plant sales link.

[0094] For the commissioned processing model, the benefit of the wholesale link = liquid sales revenue - resource procurement cost - logistics cost - gasification fee - storage and transfer fee - commissioned processing fee; the benefit of the LNG plant sales link = commissioned processing fee - processing cost.

[0095] For the self-operated model, the benefit of the wholesale link = wholesale sales revenue - resource procurement cost - logistics cost - gasification fee - storage and transfer fee; the benefit of the LNG plant sales link = liquid sales revenue - wholesale sales revenue - processing cost.

[0096] Among them, the gasification fee refers to the fee charged by the LNG plant to users for providing gasification processing of liquefied natural gas and related necessary services; the storage and transportation fee refers to the fee charged for the temporary storage and transportation of liquefied natural gas, which is generally a fixed value.

[0097] On the basis of the foregoing embodiments, the operating model of the LNG plant is determined, and each operating model corresponds to a different economic benefit calculation method; based on the corresponding economic benefit calculation method, the natural gas procurement cost, natural gas transportation cost, sales price parameters and demand parameters are processed to obtain the corresponding economic benefits, thereby realizing the accurate calculation of the economic benefits of the LNG plant under different operating models.

[0098] The present application also provides a method for calculating the actual cost of energy provided in the above embodiment in the LNG plant liquid industry chain to realize a method for analyzing the benefits of the LNG plant liquid industry chain, such as Figure 3 As shown, including:

[0099] Step 201: Based on the directed graph, the topological connection relationship of the LNG engineering liquid industry chain is constructed according to the distribution of LNG plants (assuming that the LNG plants include: Tai'an, Ansai, Bazhou, Dengkou, Huanggang, Hami, Karamay, Lunnan, Golmud, Lanzhou, Guangyuan, Guang'an, Renqiu) and the link relationship with the natural gas pipeline network;

[0100] Step 202, data preparation, the parameters such as purchase price, sales price, resource volume, sales volume, etc. required for the benefit calculation and analysis of the LNG liquid industry chain are processed as inputs of the model algorithm; the monthly loading price (yuan / cubic meter) of the LNG plant in the liquid sales link is shown in Table 1:

[0101] Table 1

[0102]

[0103] Step 203: Consider physical constraints, increase or decrease physical constraints such as LNG tank storage changes, external transmission capacity, gasification capacity, and loading capacity, and carry out analysis and calculation of the LNG liquid industry chain under the condition of satisfying the physical characteristics of the device. The physical constraints to be satisfied are as follows:

[0104] LNG tank safety inventory ≤ LNG initial tank inventory + tank inventory change ≤ LNG tank inventory maximum limit;

[0105] External transmission capacity ≤ the upper limit of external transmission pipeline design capacity

[0106] Minimum gasification volume ≤ gasification capacity ≤ maximum gasification volume

[0107] Loading capacity ≤ maximum loading volume

[0108] Step 204: Based on the assumption of uniform gas source mixing, a gas source flow tracing algorithm is used to simulate the resource composition of each plant under actual logistics, and the gas source ratio composition and procurement cost of each LNG plant are calculated;

[0109] The resource composition used by the factory is calculated by the resource path allocation algorithm based on the principle of uniform mixing in proportion. The composition structure and proportion of the gas source of each LNG plant can be calculated, thereby calculating the benefits of each gas source separately.

[0110] Step 205: Apply the logistics cost aggregation algorithm to calculate the logistics cost generated by each LNG plant from the gas source point through different logistics paths, and aggregate the cost to the LNG plant; wherein the logistics cost aggregation algorithm configures the logistics cost (yuan / m3) as shown in Table 2,

[0111] Table 2

[0112]

[0113]

[0114]

[0115]

[0116] in:

[0117] T c Represents factory logistics costs;

[0118] U j Represents the factory download volume;

[0119] T l Represents the logistics cost of the outflow pipe section;

[0120] L j represents the outflow of the pipe segment, assuming there are n pipe segments;

[0121] L represents the total injection volume of the station;

[0122] a i Represents the gas source composition of the total amount L injected into the station, assuming there are m gas sources;

[0123] b i Represents the logistics cost brought by each gas source.

[0124] Step 206: Using factor analysis method, according to actual production and operation conditions, based on the procurement cost and logistics cost in the results of steps 3 and 4, calculate the benefits of the LNG plant liquid industry chain;

[0125] Step 3 provides resource composition. Resource composition multiplied by purchase price = resource purchase cost

[0126] Step 4 provides the logistics cost and then calculates the benefit according to the following formula.

[0127] The overall benefit of the LNG plant = the benefit of the wholesale link + the benefit of the LNG plant sales link

[0128] The factory is divided into two modes:

[0129] (1) Commissioned processing model

[0130] Wholesale link benefits = liquid sales revenue - resource procurement costs - logistics costs - gasification costs - storage and transfer costs - commissioned processing fees;

[0131] The benefit of LNG plant sales = commissioned processing fee - processing cost.

[0132] (2) Self-operated model

[0133] Wholesale link benefits = wholesale sales revenue - resource procurement costs - logistics costs - gasification costs - storage and transfer costs;

[0134] The sales efficiency of an LNG plant = liquid sales revenue - wholesale sales revenue - processing costs.

[0135] The specific benefits of different LNG plants are shown in Table 3.

[0136] Table 3

[0137] Serial number LNG Plant Unilateral gas benefits 1 Ansai 1.957 2 Taian 1.481 3 Lunnan 0.776 4 Guangan 0.725 5 Huanggang 0.713 6 Golmud 0.667 7 Lanzhou 0.66 8 Bazhou 0.638 9 Hami 0.516 10 Dengkou 0.485 11 Guangyuan 0.361 12 Renqiu 0.159 13 Karamay 0.144

[0138] Step 207: Use sensitivity analysis to quantitatively analyze key factors that affect the benefits of the industrial chain;

[0139] (1) In actual logistics scenarios, further calculate the benefits (yuan / cubic meter) of each factory under different oil prices.

[0140] (2) Analyze the resource price pressure tolerance of each LNG plant under different oil prices.

[0141] Step 208: Rank the efficiency of each LNG plant and propose optimization suggestions for the LNG plant liquid industry chain.

[0142] (1) Assume that the ranking of LNG plants’ efficiency is as follows: Ansai, Tai’an, Lunnan, Guang’an, Huanggang, and Golmud. The plants with relatively weak efficiency are Guangyuan, Renqiu, and Karamay.

[0143] (2) Assume that the Ansai, Lunnan, Golmud, Lanzhou, Guang'an and Tai'an factories have strong cost resistance to oil price changes. The benefits of the Dengkou, Huanggang, Karamay and Guangyuan factories are greatly affected by oil price changes. The higher the oil price, the lower the factory benefits.

[0144] (3) In light of the above two points, it is recommended to increase the resources invested in the Ansai, Lunnan, Guang'an and Golmud plants to improve the industrial chain benefits of the LNG plants. The company can consider increasing LNG spot purchases based on actual conditions and increase sales and efficiency at Ansai and other plants.

[0145] The embodiment of the present application also provides a device for calculating the actual cost of energy, including a memory and a processor;

[0146] The memory is used to store executable programs;

[0147] The processor is used to read and execute the executable program to implement the method for calculating the actual cost of energy described in any one of the above embodiments.

[0148] The device for calculating the actual energy cost provided in the embodiment of the present application can accurately obtain the actual energy cost of each energy demand point.

[0149] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all components may be implemented as software executed by a processor, such as a digital signal processor or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

Claims

1. A method for calculating the actual cost of energy, characterized in that: include: A cost calculation operation is performed on each energy demand point in the energy supply directed topology graph, wherein the energy supply directed topology graph is constructed based on the supply connection relationship between multiple energy supply points and corresponding intermediate stations involved in energy output, the flow connection relationship between multiple intermediate stations involved in energy transmission, and the supply connection relationship between multiple energy demand points and corresponding intermediate stations involved in energy supply, and the cost calculation operation includes: According to the energy demand of the energy demand point, the energy delivery amount of each target transmission pipeline section connected to the target intermediate station corresponding to the energy demand point on the energy supply directed topological graph is measured, and the proportion of the energy amount of each energy supply point in the energy delivery amount of each target transmission pipeline section, to obtain the proportion of the energy amount of each energy supply point in the energy demand of the energy demand point; The actual energy cost of the energy demand point is calculated based on the energy demand of the energy demand point, the proportion of energy from each energy supply point in the energy demand of the energy demand point, the unit price of energy supply from each energy supply point, the unit transportation cost and transportation mileage of transporting energy to each energy supply point.

2. The method according to claim 1, characterized in that The proportion of energy delivered by each energy supply point in the energy delivered by each target transmission pipeline section is obtained by: For each target transmission pipeline section connected to the target intermediate station corresponding to the energy demand point, the following operations are performed respectively: Based on the energy output of each energy supply point and according to the change in the proportion of the energy amount of each energy supply point in the energy delivery amount of different intermediate transmission pipeline sections during the transportation process, the proportion of the energy amount of each energy supply point in the energy delivery amount of the target transmission pipeline section is obtained; wherein the intermediate transmission pipeline section is a series of transmission pipeline sections that the energy of each energy supply point must pass through from its respective corresponding starting intermediate station to enter the target transmission pipeline section.

3. The method according to claim 2, characterized in that The method of obtaining the proportion of the energy amount of each energy supply point in the energy delivery amount of the target delivery pipeline section based on the energy output of each energy supply point and according to the change in the proportion of the energy amount of each energy supply point in the energy delivery amount of different intermediate delivery pipeline sections during the delivery process includes: For each target energy supply point on the target transmission pipeline section connected to the target intermediate station corresponding to the energy demand point, the following operations are performed respectively: Based on the energy output of the target energy supply point, and in accordance with the change in the proportion of the energy of the target energy supply point in the energy transportation volume of different intermediate transmission pipeline sections due to the participation of energy from new energy supply points during the transportation process, the proportion of the energy of the target energy supply point in the energy transportation volume of the target transmission pipeline section is obtained when the energy of the target energy supply point reaches the target transmission pipeline section.

4. The method according to claim 3, characterized in that The method of obtaining the proportion of the energy amount of the target energy supply point in the energy delivery amount of the target energy supply point when the energy of the target energy supply point reaches the target energy supply point, based on the energy output of the target energy supply point and according to the change in the proportion of the energy amount of the target energy supply point in the energy delivery amount of different intermediate delivery pipeline sections caused by the participation of energy from a new energy supply point during the delivery process, includes: According to whether there is an intermediate transmission pipeline section upstream of the initial intermediate station corresponding to the target energy supply point, the proportion of the energy amount of the target energy supply point in the intermediate transmission pipeline section downstream of the initial intermediate station corresponding to the target energy supply point is obtained; If the intermediate transmission pipeline section downstream of the initial intermediate station corresponding to the target energy supply point is the target transmission pipeline section, the obtained proportion will be used as the proportion of the energy amount of the target energy supply point in the energy transmission amount of the target transmission pipeline section.

5. The method according to claim 4, characterized in that The method further comprises: If the intermediate transmission pipeline section downstream of the initial intermediate station corresponding to the target energy supply point is not the target transmission pipeline section, the intermediate station downstream of the initial intermediate station corresponding to the target energy supply point is used as the current intermediate station, and the intermediate transmission pipeline section downstream of the current intermediate station is used as the current intermediate transmission pipeline section, and the following proportion acquisition operation is performed: Determine whether the current intermediate station corresponds to a new energy supply point; If the current intermediate station does not correspond to the new energy supply point, the proportion of the energy amount of the target energy supply point in the energy delivery amount of the intermediate transmission pipeline section upstream of the current intermediate station is used as the proportion of the energy amount of the target energy supply point in the energy delivery amount of the intermediate transmission pipeline section downstream of the current intermediate station; If the current intermediate station corresponds to a new energy supply point, calculate the proportion of the energy of the target energy supply point in the energy delivery of the current intermediate transmission section after the energy of the new energy supply point is input to the current intermediate station, based on the energy output of the new energy supply point, the energy delivery of the intermediate transmission pipeline section upstream of the current intermediate station, and the proportion of the energy of the target energy supply point in the energy delivery of the intermediate transmission pipeline section upstream of the current intermediate station; The intermediate station downstream of the current intermediate station is taken as the new current intermediate station, and the intermediate transmission pipeline section downstream of the new current intermediate station is taken as the new current intermediate transmission pipeline section, and the proportion acquisition operation is continued until the new intermediate transmission pipeline section downstream of the current intermediate station is the target transmission pipeline section, and the proportion of the energy amount of the target energy supply point in the energy transmission amount of the new current intermediate transmission pipeline section finally obtained is taken as the proportion of the energy amount of the target energy supply point in the energy transmission amount of the target transmission pipeline section.

6. The method according to claim 4, characterized in that The step of obtaining the proportion of the energy amount of the target energy supply point in the intermediate transmission pipeline section downstream of the initial intermediate station corresponding to the target energy supply point according to whether there is an intermediate transmission pipeline section upstream of the initial intermediate station corresponding to the target energy supply point includes: If there is no intermediate transmission pipeline section upstream of the initial intermediate station corresponding to the target energy supply point, determine that the energy amount of the target energy supply point accounts for 100% of the energy transmission amount of the intermediate transmission pipeline section downstream of the initial intermediate station corresponding to the target energy supply point; If there is an intermediate transmission pipeline section upstream of the initial intermediate station corresponding to the target energy supply point, the proportion of the energy of the target energy supply point in the energy transmission volume of the intermediate transmission pipeline section downstream of the initial intermediate station is calculated based on the energy output of the target energy supply point and the energy transmission volume of the intermediate transmission pipeline section upstream of the initial intermediate station corresponding to the target energy supply point.

7. The method according to claim 5, characterized in that The calculating, based on the energy output of the new energy supply point, the energy delivery amount of the intermediate delivery pipeline section upstream of the current intermediate station, the proportion of the energy delivery amount of the target energy supply point in the energy delivery amount of the intermediate delivery pipeline section upstream of the current intermediate station, the proportion of the energy delivery amount of the target energy supply point in the energy delivery amount of the intermediate delivery pipeline section upstream of the current intermediate station, comprises: Calculate the energy amount of the target energy supply point in the energy delivery amount of the intermediate transmission pipeline section upstream of the current intermediate station according to the energy delivery amount of the intermediate transmission pipeline section upstream of the current intermediate station and the proportion of the energy amount of the target energy supply point in the energy delivery amount of the intermediate transmission pipeline section upstream of the current intermediate station; Calculate the energy delivery amount of the current intermediate station after the energy of the new energy supply point is input to the current intermediate station according to the energy output of the new energy supply point and the energy delivery amount of the intermediate transmission pipeline section upstream of the current intermediate station; The proportion of the energy amount of the target energy supply point in the energy delivery amount of the intermediate transmission pipeline section upstream of the current intermediate station and the energy delivery amount of the current intermediate station after the energy of the new energy supply point is input into the current intermediate station is calculated, and the proportion of the energy amount of the target energy supply point in the energy delivery amount of the current intermediate station obtained is used as the proportion of the energy amount of the target energy supply point in the energy delivery amount of the current intermediate transmission pipeline section.

8. The method according to claim 1, characterized in that The actual energy cost includes: energy procurement cost and energy transportation cost; The actual energy cost of the energy demand point is calculated based on the energy demand of the energy demand point, the proportion of the energy of each energy supply point in the energy demand of the energy demand point, the energy supply unit price of each energy supply point, the unit transportation cost and transportation mileage of the energy of each energy supply point, including: Calculate the energy procurement cost of the energy demand point based on the proportion of energy from each energy supply point in the demand of the energy demand point and the energy unit price of each energy supply point; The energy transportation cost of the energy demand point is calculated based on the demand of the energy demand point, the proportion of the energy of each energy supply point in the demand of the energy demand point, all intermediate transmission pipeline sections through which each energy supply point transmits energy to the energy demand point, and the unit transportation cost and transportation mileage of each intermediate transmission pipeline section.

9. The method according to claim 8, characterized in that The energy transportation cost of the energy demand point is calculated based on the demand of the energy demand point, the proportion of the energy of each energy supply point in the demand of the energy demand point, all intermediate transmission pipeline sections through which each energy supply point transmits energy to the energy demand point, and the unit transportation cost and transportation mileage of each intermediate transportation pipeline section, including: Calculate the amount of energy from each energy supply point in the demand of the energy demand point according to the demand of the energy demand point and the proportion of the energy amount of each energy supply point in the demand of the energy demand point; For the amount of energy from each energy supply point, the following operations are performed: based on the amount of energy from the energy supply point, all the transmission pipeline sections through which the energy from the energy supply point is transmitted to the energy demand point, and the unit transportation cost and transportation mileage of each transmission pipeline section, the intermediate transportation cost required for transporting the energy from the energy supply point from the energy supply point to the energy demand point is calculated; The energy transportation cost of each energy demand point is calculated based on the intermediate transportation cost required to transport the energy from each energy supply point to the energy demand point.

10. A device for calculating the actual cost of energy, characterized in that: include: Memory and processor; The memory is used to store executable programs; The processor is used to read and execute the executable program to implement the method for calculating the actual cost of energy according to any one of claims 1-9.

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