Power transmission and hydrogen transmission capacity collaborative optimization configuration method and system

Abstract

The embodiment of the invention provides a power transmission and hydrogen transmission capacity collaborative optimization configuration method and system, and the method comprises the steps: obtaining various technical and economic parameters needed by model calculation; establishing a power transmission and hydrogen transmission capacity collaborative configuration optimization model by taking minimization of the net present value of the total cost of the system in the planning period as an objective function; and solving the power transmission and hydrogen transmission capacity collaborative configuration optimization model by constructing constraint conditions to obtain an optimal solution of the power transmission and hydrogen transmission capacity collaborative configuration method. According to the invention, collaborative optimization can be carried out on cross-regional power transmission and hydrogen transmission capacities, and new energy consumption and utilization and cross-regional optimization configuration of energy resources are ensured to be realized in a reasonable optimization mode.

Description

Technical Field

[0001] This document relates to the interdisciplinary field of energy and power systems and technical and economics, and in particular to a method and system for collaborative optimization of power and hydrogen transmission capacity. Background Art

[0002] At present, hydrogen energy and power systems belong to two different systems and are planned separately. In the future, both hydrogen and electricity will be important secondary energy sources and important carriers for the consumption and allocation of clean energy. Both power transmission and hydrogen transmission will be important ways to optimize the allocation of cross-regional energy resources, so it is necessary to carry out coordinated planning. Summary of the invention

[0003] One or more embodiments of this specification provide a method for collaborative optimization configuration of power transmission and hydrogen transmission capacity, including:

[0004] S1. Obtain various technical and economic parameters required for model calculation;

[0005] S2. Taking the minimization of the net present value of the total system cost during the planning period as the objective function, an optimization model for the coordinated configuration of power and hydrogen transmission capacity is established;

[0006] S3. Solve the optimization model for the coordinated configuration of power transmission and hydrogen transmission capacity by constructing constraint conditions to obtain an optimal solution for the coordinated configuration method for power transmission and hydrogen transmission capacity.

[0007] Furthermore, the technical and economic parameters include.

[0008] Furthermore, the optimization model for the coordinated configuration of power and hydrogen transmission capacity is set with the minimization of the net present value of the total system cost during the planning period as the objective function, which specifically includes:

[0009] Taking the minimization of the net present value of the total system cost during the planning period as the goal, the objective function is constructed as shown in Formula 1, and the coordinated configuration optimization model of power transmission and hydrogen transmission capacity is established:

[0010]

[0011] Among them, T is the length of the planning period, Q ij,t 、M ij , C ij,t are the capacity, distance and unit capacity distance cost of the transmission line connecting the i-th region and the j-th region, respectively. ij,t and X ij,t are the capacity of the hydrogen pipeline connecting the i-th area and the j-th area and the cost per unit capacity distance respectively.

[0012] Furthermore, the optimization model for the coordinated configuration of power transmission and hydrogen transmission capacity is solved by constructing constraint conditions, so as to obtain the optimal solution of the coordinated configuration method of power transmission and hydrogen transmission capacity. Specifically, the optimal solution includes:

[0013] The power balance constraints of each region are set through formula 2 to ensure the balance of power supply and demand in each region:

[0014]

[0015] Among them, g,r is the peak load output confidence factor of the g-th power source in region r, pe rj,t is the power value transmitted from region r to region j, pe ir,t is the power value transmitted from the ith region to the region r, le ir is the line loss rate of the transmission channel connecting the i-th region and the r-th region, le r is the average transmission and distribution line loss rate in region r, h e is the reserve factor of the electric load, Le r,t is the predicted maximum power load of region r in year t;

[0016] Formula 3 is used to set the hydrogen production and sales balance constraints in each region to ensure the hydrogen flow production and sales balance in each region:

[0017]

[0018] Among them, EF e is the efficiency of the electrolyzer, CT e is the calorific value conversion coefficient between electrical energy and hydrogen energy, ph rj,t is the hydrogen flow rate from region r to region j, ph ir,t is the hydrogen flow rate from the ith region to the rth region, lh ir is the loss rate of the hydrogen pipeline connecting the i-th area and the r-th area, h h is the reserve factor of hydrogen load, Lh r,t is the predicted maximum green hydrogen demand of region r in year t;

[0019] The power balance constraint of each region is set by formula 4 to ensure the balance of power supply and demand in each region:

[0020]

[0021] Among them, Pe rj,t is the amount of electricity transmitted from region r to region j in year t, Pe ir,t Lc is the amount of electricity delivered from region i to region r in year t. r,t The predicted value of electricity demand in region r in year t, p s is the charging and discharging efficiency of the s-th type of energy storage;

[0022] The hydrogen mass balance constraint of each region is set through formula 5 to ensure the balance of hydrogen mass production and sales in each region:

[0023]

[0024] Among them, U e,r,t is the utilization hours of the electrolytic cell in the rth area in the tth year, Ph rj,t is the mass of hydrogen delivered from region r to region j in year t, Ph ir,t is the mass of hydrogen delivered from region i to region r in year t, Lq r,t The forecast value of green hydrogen demand in region r in year t, p p The charging and discharging efficiency of hydrogen storage;

[0025] The transmission capacity constraint is set by formula 6 to ensure that the power of each inter-regional transmission channel does not exceed its capacity:

[0026] pe ij,t ≤Q ij,t Formula 6;

[0027] The hydrogen transmission power constraint is set by formula 7 to ensure that the flow value of each cross-regional hydrogen transmission pipeline does not exceed its capacity:

[0028] ph ij,t ≤D ij,t Formula 7;

[0029] The transmission power constraint is set by formula 8 to ensure that the annual transmission power of each inter-regional transmission line does not exceed its annual maximum transmission power:

[0030] P ij,t ≤Q ij,t ·Ue ij Formula 8;

[0031] Among them, Ue ij is the maximum utilization hours of the transmission line connecting the i-th region and the j-th region;

[0032] The hydrogen transmission quality constraint is set by formula 9 to ensure that the annual hydrogen transmission volume of each cross-regional hydrogen transmission pipeline does not exceed its annual maximum hydrogen transmission volume:

[0033] Ph ij,t ≤D ij,t ·Uh ij Formula 9;

[0034] Among them, Uh ij is the maximum utilization hours of the hydrogen pipeline connecting the i-th area and the j-th area;

[0035] Formula 10 is used to set the construction scale constraint of the transmission channel, taking into account factors such as raw material supply and construction speed, so that the construction scale of the cross-regional transmission channel does not exceed its maximum construction capacity:

[0036] 0≤Q ij,t -Q ij,t-1 ≤Qm ij,t Formula 10;

[0037] Among them, Qm ij,t is the maximum construction capacity of the transmission channel connecting the ith region and the jth region in year t;

[0038] Formula 11 is used to set the construction scale constraint of hydrogen pipelines, taking into account the raw material supply and construction speed factors, so that the construction scale of cross-regional hydrogen pipelines does not exceed its maximum construction capacity:

[0039] 0≤D ij,t -D ij,t-1 ≤Dm ij,t Formula 11;

[0040] Among them, Dm ij,t is the maximum construction capacity of the hydrogen pipeline connecting the ith region and the jth region in year t;

[0041] Among them, Ce t is the upper limit of carbon emissions of the power system in year t.

[0042] One or more embodiments of this specification provide a system for coordinated optimization configuration of power transmission and hydrogen transmission capacity, including:

[0043] Data acquisition module: used to obtain various technical and economic parameters required for model calculation;

[0044] Model building module: used to establish a coordinated configuration optimization model for power and hydrogen transmission capacity, taking the minimization of the net present value of the total system cost during the planning period as the objective function;

[0045] Model solving module: used to solve the optimization model of the coordinated configuration of power transmission and hydrogen transmission capacity by constructing constraint conditions to obtain the optimal solution of the coordinated configuration method of power transmission and hydrogen transmission capacity.

[0046] Furthermore, the technical and economic parameters include.

[0047] Furthermore, the model building module is specifically used for:

[0048] Taking the minimization of the net present value of the total system cost during the planning period as the goal, the objective function is constructed as shown in Formula 1, and the coordinated configuration optimization model of power transmission and hydrogen transmission capacity is established:

[0049]

[0050] Among them, T is the length of the planning period, Q ij,t 、M ij , C ij,tare the capacity, distance and unit capacity distance cost of the transmission line connecting the i-th region and the j-th region, respectively. ij,t and X ij,t are the capacity of the hydrogen pipeline connecting the i-th area and the j-th area and the cost per unit capacity distance respectively.

[0051] Furthermore, the model solving module is specifically used for:

[0052] The power balance constraints of each region are set through formula 2 to ensure the balance of power supply and demand in each region:

[0053]

[0054] Among them, g,r is the peak load output confidence factor of the g-th power source in region r, pe rj,t is the power value transmitted from region r to region j, pe ir,t is the power value transmitted from the ith region to the region r, le ir is the line loss rate of the transmission channel connecting the i-th region and the r-th region, le r is the average transmission and distribution line loss rate in region r, h e is the reserve factor of the electric load, Le r,t is the predicted maximum power load of region r in year t;

[0055] Formula 3 is used to set the hydrogen production and sales balance constraints in each region to ensure the hydrogen flow production and sales balance in each region:

[0056]

[0057] Among them, EF e is the efficiency of the electrolyzer, CT e is the calorific value conversion coefficient between electrical energy and hydrogen energy, ph rj,t is the hydrogen flow rate from region r to region j, ph ir,t is the hydrogen flow rate from the ith region to the rth region, lh ir is the loss rate of the hydrogen pipeline connecting the i-th area and the r-th area, h h is the reserve factor of hydrogen load, Lh r,t is the predicted maximum green hydrogen demand of region r in year t;

[0058] The power balance constraint of each region is set by formula 4 to ensure the balance of power supply and demand in each region:

[0059]

[0060] Among them, Pe rj,t is the amount of electricity transmitted from region r to region j in year t, Peir,t Lc is the amount of electricity delivered from region i to region r in year t. r,t The predicted value of electricity demand in region r in year t, p s is the charging and discharging efficiency of the s-type energy storage;

[0061] The hydrogen mass balance constraint of each region is set through formula 5 to ensure the balance of hydrogen mass production and sales in each region:

[0062]

[0063] Among them, U e,r,t is the utilization hours of the electrolytic cell in the rth area in the tth year, Ph rj,t is the mass of hydrogen delivered from region r to region j in year t, Ph ir,t is the mass of hydrogen delivered from region i to region r in year t, Lq r,t The forecast value of green hydrogen demand in region r in year t, p p The charging and discharging efficiency of hydrogen storage;

[0064] The transmission capacity constraint is set by formula 6 to ensure that the power of each inter-regional transmission channel does not exceed its capacity:

[0065] pe ij,t ≤Q ij,t Formula 6;

[0066] The hydrogen transmission power constraint is set by formula 7 to ensure that the flow value of each cross-regional hydrogen transmission pipeline does not exceed its capacity:

[0067] ph ij,t ≤D ij,t Formula 7;

[0068] The transmission power constraint is set by formula 8 to ensure that the annual transmission power of each inter-regional transmission line does not exceed its annual maximum transmission power:

[0069] P ij,t ≤Q ij,t ·Ue ij Formula 8;

[0070] Among them, Ue ij is the maximum utilization hours of the transmission line connecting the i-th region and the j-th region;

[0071] The hydrogen transmission quality constraint is set by formula 9 to ensure that the annual hydrogen transmission volume of each cross-regional hydrogen transmission pipeline does not exceed its annual maximum hydrogen transmission volume:

[0072] Ph ij,t ≤D ij,t ·Uh ij Formula 9;

[0073] Among them, Uh ij is the maximum utilization hours of the hydrogen pipeline connecting the i-th area and the j-th area;

[0074] Formula 10 is used to set the construction scale constraint of the transmission channel, taking into account factors such as raw material supply and construction speed, so that the construction scale of the cross-regional transmission channel does not exceed its maximum construction capacity:

[0075] 0≤Q ij,t -Q ij,t-1 ≤Qm ij,t Formula 10;

[0076] Among them, Qm ij,t is the maximum construction capacity of the transmission channel connecting the ith region and the jth region in year t;

[0077] Formula 11 is used to set the construction scale constraint of hydrogen pipelines, taking into account the raw material supply and construction speed factors, so that the construction scale of cross-regional hydrogen pipelines does not exceed its maximum construction capacity:

[0078] 0≤D ij,t -D ij,t-1 ≤Dm ij,t Formula 11;

[0079] Among them, Dm ij,t is the maximum construction capacity of the hydrogen pipeline connecting the ith region and the jth region in year t;

[0080] Among them, Ce t is the upper limit of carbon emissions of the power system in year t.

[0081] One or more embodiments of the present specification provide an electronic device, including:

[0082] processor; and,

[0083] A memory arranged to store computer executable instructions, which, when executed, cause the processor to implement the steps of the above-mentioned method for collaborative optimization configuration of electricity and hydrogen transmission capacity.

[0084] One or more embodiments of the present specification provide a storage medium for storing computer-executable instructions, which, when executed, implement the steps of the above-mentioned method for collaborative optimization configuration of power and hydrogen transmission capacity.

[0085] By adopting the embodiments of the present invention, cross-regional power transmission and hydrogen transmission capacity can be coordinated and optimized, ensuring that new energy consumption and utilization and cross-regional optimal allocation of energy resources are achieved in a reasonably optimized manner.

[0086] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0087] In order to more clearly illustrate one or more embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0088] Figure 1 A flow chart of a method for collaborative optimization configuration of power transmission and hydrogen transmission capacity provided for one or more embodiments of this specification;

[0089] Figure 2 A schematic diagram of the composition of a system for coordinated optimization configuration of power and hydrogen transmission capacity provided in one or more embodiments of this specification;

[0090] Figure 3 A schematic diagram of the structure of an electronic device provided for one or more embodiments of this specification. DETAILED DESCRIPTION

[0091] In order to enable those skilled in the art to better understand the technical solutions in one or more embodiments of this specification, the following will be combined with the drawings in one or more embodiments of this specification to clearly and completely describe the technical solutions in one or more embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on one or more embodiments of this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this document.

[0092] Method Embodiment

[0093] According to an embodiment of the present invention, a method for collaborative optimization configuration of power transmission and hydrogen transmission capacity is provided. Figure 1 A flowchart of a method for collaborative optimization configuration of power transmission and hydrogen transmission capacity provided in one or more embodiments of this specification, such as Figure 1 As shown, the method for collaborative optimization configuration of power transmission and hydrogen transmission capacity according to an embodiment of the present invention specifically includes:

[0094] S1. Obtain various technical and economic parameters required for model calculation.

[0095] The technical and economic parameters include.

[0096] S2. Taking the minimization of the net present value of the total system cost during the planning period as the objective function, an optimization model for the coordinated configuration of power and hydrogen transmission capacity is established.

[0097] The optimization model for the coordinated configuration of power and hydrogen transmission capacity is set up with the minimization of the net present value of the total system cost during the planning period as the objective function, which specifically includes:

[0098] Taking the minimization of the net present value of the total system cost during the planning period as the goal, the objective function is constructed as shown in Formula 1, and the coordinated configuration optimization model of power transmission and hydrogen transmission capacity is established:

[0099]

[0100] Among them, T is the length of the planning period, Q ij,t 、M ij , C ij,t are the capacity, distance and unit capacity distance cost of the transmission line connecting the i-th region and the j-th region, respectively. ij,t and X ij,t are the capacity of the hydrogen pipeline connecting the i-th area and the j-th area and the cost per unit capacity distance respectively.

[0101] S3. Solve the optimization model for the coordinated configuration of power transmission and hydrogen transmission capacity by constructing constraint conditions to obtain an optimal solution for the coordinated configuration method for power transmission and hydrogen transmission capacity.

[0102] Specifically include:

[0103] The power balance constraints of each region are set through formula 2 to ensure the balance of power supply and demand in each region:

[0104]

[0105] Among them, g,r is the peak load output confidence factor of the g-th power source in region r, pe rj,t is the power value transmitted from region r to region j, pe ir,t is the power value transmitted from the ith region to the region r, le ir is the line loss rate of the transmission channel connecting the i-th region and the r-th region, le r is the average transmission and distribution line loss rate in region r, h e is the reserve factor of the electric load, Le r,t is the predicted maximum power load of region r in year t;

[0106] Formula 3 is used to set the hydrogen production and sales balance constraints in each region to ensure the hydrogen flow production and sales balance in each region:

[0107]

[0108] Among them, EF e is the efficiency of the electrolyzer, CT e is the calorific value conversion coefficient between electrical energy and hydrogen energy, ph rj,t is the hydrogen flow rate from region r to region j, ph ir,t is the hydrogen flow rate from the ith region to the rth region, lh ir is the loss rate of the hydrogen pipeline connecting the i-th area and the r-th area, h h is the reserve factor of hydrogen load, Lh r,t is the predicted maximum green hydrogen demand of region r in year t;

[0109] The power balance constraint of each region is set by formula 4 to ensure the balance of power supply and demand in each region:

[0110]

[0111] Among them, Pe rj,t is the amount of electricity transmitted from region r to region j in year t, Pe ir,t Lc is the amount of electricity delivered from region i to region r in year t. r,t The predicted value of electricity demand in region r in year t, p s is the charging and discharging efficiency of the s-th type of energy storage;

[0112] The hydrogen mass balance constraint of each region is set through formula 5 to ensure the balance of hydrogen mass production and sales in each region:

[0113]

[0114] Among them, U e,r,t is the utilization hours of the electrolytic cell in the rth area in the tth year, Ph rj,t is the mass of hydrogen delivered from region r to region j in year t, Ph ir,t is the mass of hydrogen delivered from region i to region r in year t, Lq r,t The forecast value of green hydrogen demand in region r in year t, p p The charging and discharging efficiency of hydrogen storage;

[0115] The transmission capacity constraint is set by formula 6 to ensure that the power of each inter-regional transmission channel does not exceed its capacity:

[0116] pe ij,t ≤Q ij,t Formula 6;

[0117] The hydrogen transmission power constraint is set by formula 7 to ensure that the flow value of each cross-regional hydrogen transmission pipeline does not exceed its capacity:

[0118] phij,t ≤D ij,t Formula 7;

[0119] The transmission power constraint is set by formula 8 to ensure that the annual transmission power of each inter-regional transmission line does not exceed its annual maximum transmission power:

[0120] P ij,t ≤Q ij,t ·Ue ij Formula 8;

[0121] Among them, Ue ij is the maximum utilization hours of the transmission line connecting the i-th region and the j-th region;

[0122] The hydrogen transmission quality constraint is set by formula 9 to ensure that the annual hydrogen transmission volume of each cross-regional hydrogen transmission pipeline does not exceed its annual maximum hydrogen transmission volume:

[0123] Ph ij,t ≤D ij,t ·Uh ij Formula 9;

[0124] Among them, Uh ij is the maximum utilization hours of the hydrogen pipeline connecting the i-th area and the j-th area;

[0125] Formula 10 is used to set the construction scale constraint of the transmission channel, taking into account factors such as raw material supply and construction speed, so that the construction scale of the cross-regional transmission channel does not exceed its maximum construction capacity:

[0126] 0≤Q ij,t -Q ij,t-1 ≤Qm ij,t Formula 10;

[0127] Among them, Qm ij,t is the maximum construction capacity of the transmission channel connecting the ith region and the jth region in year t;

[0128] Formula 11 is used to set the construction scale constraint of hydrogen pipelines, taking into account the raw material supply and construction speed factors, so that the construction scale of cross-regional hydrogen pipelines does not exceed its maximum construction capacity:

[0129] 0≤D ij,t -D ij,t-1 ≤Dm ij,t Formula 11;

[0130] Among them, Dm ij,t is the maximum construction capacity of the hydrogen pipeline connecting the ith region and the jth region in year t;

[0131] Among them, Ce t is the upper limit of carbon emissions of the power system in year t.

[0132] The beneficial effects of the present invention are as follows:

[0133] By adopting the embodiments of the present invention, cross-regional power transmission and hydrogen transmission capacity can be coordinated and optimized, ensuring that new energy consumption and utilization and cross-regional optimal allocation of energy resources are achieved in a reasonably optimized manner.

[0134] System Example

[0135] According to an embodiment of the present invention, a system for collaborative optimization configuration of power transmission and hydrogen transmission capacity is provided. Figure 2 A schematic diagram of a system for coordinating and optimizing the configuration of power and hydrogen transmission capacity provided in one or more embodiments of this specification is shown in FIG. Figure 2 As shown, the system for collaborative optimization configuration of power transmission and hydrogen transmission capacity according to an embodiment of the present invention specifically includes:

[0136] Data acquisition module 20: used to obtain various technical and economic parameters required for model calculation;

[0137] The technical and economic parameters include.

[0138] Model building module 22: used to establish a coordinated configuration optimization model for power transmission and hydrogen transmission capacity with the objective function of minimizing the net present value of the total system cost during the planning period;

[0139] The model building module 22 is specifically used for:

[0140] Taking the minimization of the net present value of the total system cost during the planning period as the goal, the objective function is constructed as shown in Formula 1, and the coordinated configuration optimization model of power transmission and hydrogen transmission capacity is established:

[0141]

[0142] Among them, T is the length of the planning period, Q ij,t 、M ij , C ij,t are the capacity, distance and unit capacity distance cost of the transmission line connecting the i-th region and the j-th region, respectively. ij,t and X ij,t are the capacity of the hydrogen pipeline connecting the i-th area and the j-th area and the cost per unit capacity distance respectively.

[0143] The model solving module 24 is used to solve the power transmission and hydrogen transmission capacity coordinated configuration optimization model by constructing constraint conditions to obtain the optimal solution of the power transmission and hydrogen transmission capacity coordinated configuration method.

[0144] The model solving module 24 is specifically used for:

[0145] The power balance constraints of each region are set through formula 2 to ensure the balance of power supply and demand in each region:

[0146]

[0147] Among them, g,r is the peak load output confidence factor of the g-th power source in region r, pe rj,t is the power value transmitted from region r to region j, pe ir,t is the power value transmitted from the ith region to the region r, le ir is the line loss rate of the transmission channel connecting the i-th region and the r-th region, le r is the average transmission and distribution line loss rate in region r, h e is the reserve factor of the electric load, Le r,t is the predicted maximum power load of region r in year t;

[0148] Formula 3 is used to set the hydrogen production and sales balance constraints in each region to ensure the hydrogen flow production and sales balance in each region:

[0149]

[0150] Among them, EF e is the efficiency of the electrolyzer, CT e is the calorific value conversion coefficient between electrical energy and hydrogen energy, ph rj,t is the hydrogen flow rate from region r to region j, ph ir,t is the hydrogen flow rate from the ith region to the rth region, lh ir is the loss rate of the hydrogen pipeline connecting the i-th area and the r-th area, h h is the reserve factor of hydrogen load, Lh r,t is the predicted maximum green hydrogen demand of region r in year t;

[0151] The power balance constraint of each region is set by formula 4 to ensure the balance of power supply and demand in each region:

[0152]

[0153] Among them, Pe rj,t is the amount of electricity transmitted from region r to region j in year t, Pe ir,t Lc is the amount of electricity delivered from region i to region r in year t. r,t The predicted value of electricity demand in region r in year t, p s is the charging and discharging efficiency of the s-th type of energy storage;

[0154] The hydrogen mass balance constraint of each region is set through formula 5 to ensure the balance of hydrogen mass production and sales in each region:

[0155]

[0156] Among them, U e,r,t is the utilization hours of the electrolytic cell in the rth area in the tth year, Ph rj,t is the mass of hydrogen delivered from region r to region j in year t, Ph ir,t is the mass of hydrogen delivered from region i to region r in year t, Lq r,t The forecast value of green hydrogen demand in region r in year t, p p The charging and discharging efficiency of hydrogen storage;

[0157] The transmission capacity constraint is set by formula 6 to ensure that the power of each inter-regional transmission channel does not exceed its capacity:

[0158] pe ij,t ≤Q ij,t Formula 6;

[0159] The hydrogen transmission power constraint is set by formula 7 to ensure that the flow value of each cross-regional hydrogen transmission pipeline does not exceed its capacity:

[0160] ph ij,t ≤D ij,t Formula 7;

[0161] The transmission power constraint is set by formula 8 to ensure that the annual transmission power of each inter-regional transmission line does not exceed its annual maximum transmission power:

[0162] P ij,t ≤Q ij,t ·Ue ij Formula 8;

[0163] Among them, Ue ij is the maximum utilization hours of the transmission line connecting the i-th region and the j-th region;

[0164] The hydrogen transmission quality constraint is set by formula 9 to ensure that the annual hydrogen transmission volume of each cross-regional hydrogen transmission pipeline does not exceed its annual maximum hydrogen transmission volume:

[0165] Ph ij,t ≤D ij,t ·Uh ij Formula 9;

[0166] Among them, Uh ij is the maximum utilization hours of the hydrogen pipeline connecting the i-th area and the j-th area;

[0167] Formula 10 is used to set the construction scale constraint of the transmission channel, taking into account factors such as raw material supply and construction speed, so that the construction scale of the cross-regional transmission channel does not exceed its maximum construction capacity:

[0168] 0≤Q ij,t -Q ij,t-1 ≤Qmij,t Formula 10;

[0169] Among them, Qm ij,t is the maximum construction capacity of the transmission channel connecting the ith region and the jth region in year t;

[0170] Formula 11 is used to set the construction scale constraint of hydrogen pipelines, taking into account the raw material supply and construction speed factors, so that the construction scale of cross-regional hydrogen pipelines does not exceed its maximum construction capacity:

[0171] 0≤D ij,t -D ij,t-1 ≤Dm ij,t Formula 11;

[0172] Among them, Dm ij,t is the maximum construction capacity of the hydrogen pipeline connecting the ith region and the jth region in year t;

[0173] Among them, Ce t is the upper limit of carbon emissions of the power system in year t.

[0174] The embodiment of the present invention is a system embodiment corresponding to the above-mentioned method embodiment. The specific operations of each module can be understood by referring to the description of the method embodiment, which will not be repeated here.

[0175] Device Example 1

[0176] An embodiment of the present invention provides an electronic device, such as Figure 3 As shown, it includes: a memory 30, a processor 32, and a computer program stored in the memory 30 and executable on the processor 32. When the computer program is executed by the processor 32, the following method steps are implemented:

[0177] S1. Obtain various technical and economic parameters required for model calculation;

[0178] S2. Taking the minimization of the net present value of the total system cost during the planning period as the objective function, an optimization model for the coordinated configuration of power and hydrogen transmission capacity is established;

[0179] S3. Solve the optimization model for the coordinated configuration of power transmission and hydrogen transmission capacity by constructing constraint conditions to obtain an optimal solution for the coordinated configuration method for power transmission and hydrogen transmission capacity.

[0180] Device Example 2

[0181] An embodiment of the present invention provides a computer-readable storage medium, on which a program for implementing information transmission is stored. When the program is executed by the processor 32, the following method steps are implemented:

[0182] S1. Obtain various technical and economic parameters required for model calculation;

[0183] S2. Taking the minimization of the net present value of the total system cost during the planning period as the objective function, an optimization model for the coordinated configuration of power and hydrogen transmission capacity is established;

[0184] S3. Solve the optimization model for the coordinated configuration of power transmission and hydrogen transmission capacity by constructing constraint conditions to obtain an optimal solution for the coordinated configuration method for power transmission and hydrogen transmission capacity.

[0185] The computer-readable storage medium in this embodiment includes, but is not limited to, ROM, RAM, magnetic disk or optical disk, etc.

[0186] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for collaborative optimization of power transmission and hydrogen transmission capacity, characterized in that: include: S1. Obtain various technical and economic parameters required for model calculation; S2. Taking the minimization of the net present value of the total system cost during the planning period as the objective function, an optimization model for the coordinated configuration of power and hydrogen transmission capacity is established; S3. Solve the optimization model for the coordinated configuration of power transmission and hydrogen transmission capacity by constructing constraint conditions to obtain an optimal solution for the coordinated configuration method for power transmission and hydrogen transmission capacity.

2. The method according to claim 1, characterized in that The technical and economic parameters include.

3. The method according to claim 1, characterized in that The optimization model for the coordinated configuration of power and hydrogen transmission capacity is set up with the minimization of the net present value of the total system cost during the planning period as the objective function, which specifically includes: Taking the minimization of the net present value of the total system cost during the planning period as the goal, the objective function is constructed as shown in Formula 1, and the coordinated configuration optimization model of power transmission and hydrogen transmission capacity is established: Among them, T is the length of the planning period, Q ij,t 、M ij , C ij,t are the capacity, distance and unit capacity distance cost of the transmission line connecting the i-th region and the j-th region, respectively. ij,t and X ij,t are the capacity of the hydrogen pipeline connecting the i-th area and the j-th area and the cost per unit capacity distance respectively.

4. The method according to claim 1, characterized in that The optimization model for the coordinated configuration of power transmission and hydrogen transmission capacity is solved by constructing constraint conditions, so as to obtain the optimal solution of the coordinated configuration method for power transmission and hydrogen transmission capacity. Specifically, the optimal solution includes: The power balance constraints of each region are set through formula 2 to ensure the balance of power supply and demand in each region: Among them, g,r is the peak load output confidence factor of the g-th power source in region r, pe rj,t is the power value transmitted from region r to region j, pe ir,t is the power value transmitted from the ith region to the region r, le ir is the line loss rate of the transmission channel connecting the i-th region and the r-th region, le r is the average transmission and distribution line loss rate in region r, h e is the reserve factor of the electric load, Le r,t is the predicted maximum power load of region r in year t; Formula 3 is used to set the hydrogen production and sales balance constraints in each region to ensure the hydrogen flow production and sales balance in each region: Among them, EF e is the efficiency of the electrolyzer, CT e is the calorific value conversion coefficient between electrical energy and hydrogen energy, ph rj,t is the hydrogen flow rate from region r to region j, ph ir,t is the hydrogen flow rate from the ith region to the rth region, lh ir is the loss rate of the hydrogen pipeline connecting the i-th area and the r-th area, h h is the reserve factor of hydrogen load, Lh r,t is the predicted maximum green hydrogen demand of region r in year t; The power balance constraint of each region is set by formula 4 to ensure the balance of power supply and demand in each region: Among them, Pe rj,t is the amount of electricity transmitted from region r to region j in year t, Pe ir,t Lc is the amount of electricity delivered from region i to region r in year t. r,t The predicted value of electricity demand in region r in year t, p s is the charging and discharging efficiency of the s-type energy storage; The hydrogen mass balance constraint of each region is set through formula 5 to ensure the balance of hydrogen mass production and sales in each region: Among them, U e,r,t is the utilization hours of the electrolytic cell in the rth area in the tth year, Ph rj,t is the mass of hydrogen delivered from region r to region j in year t, Ph ir,t is the mass of hydrogen delivered from region i to region r in year t, Lq r,t The forecast value of green hydrogen demand in region r in year t, p p The charging and discharging efficiency of hydrogen storage; The transmission capacity constraint is set by formula 6 to ensure that the power of each inter-regional transmission channel does not exceed its capacity: p.e. ij,t ≤Q ij,t Formula 6: The hydrogen transmission power constraint is set by formula 7 to ensure that the flow value of each cross-regional hydrogen transmission pipeline does not exceed its capacity: ph ij,t ≤D ij,t Formula 7; The transmission power constraint is set by formula 8 to ensure that the annual transmission power of each inter-regional transmission line does not exceed its annual maximum transmission power: Pe ij,t ≤Q ij,t ·Ue ij Formula 8; Among them, Ue ij is the maximum utilization hours of the transmission line connecting the i-th region and the j-th region; The hydrogen transmission quality constraint is set by formula 9 to ensure that the annual hydrogen transmission volume of each cross-regional hydrogen transmission pipeline does not exceed its annual maximum hydrogen transmission volume: Ph ij,t ≤D ij,t ·Uh ij Formula 9; Among them, Uh ij is the maximum utilization hours of the hydrogen pipeline connecting the i-th area and the j-th area; Formula 10 is used to set the construction scale constraint of the transmission channel, taking into account factors such as raw material supply and construction speed, so that the construction scale of the cross-regional transmission channel does not exceed its maximum construction capacity: 0 ≤ Q ij,t -Q ij,t-1 ≤Qm ij,t Formula 10: Among them, Qm ij,t is the maximum construction capacity of the transmission channel connecting the ith region and the jth region in year t; Formula 11 is used to set the construction scale constraint of hydrogen pipelines, taking into account the raw material supply and construction speed factors, so that the construction scale of cross-regional hydrogen pipelines does not exceed its maximum construction capacity: 0≤D ij,t -D ij,t-1 ≤Dm ij,t Formula 11; Among them, Dm ij,t is the maximum construction capacity of the hydrogen pipeline connecting the ith region and the jth region in year t; Among them, Ce t is the upper limit of carbon emissions of the power system in year t.

5. A system for collaborative optimization of power and hydrogen transmission capacity, characterized in that: include: Data acquisition module: used to obtain various technical and economic parameters required for model calculation; Model building module: used to establish a coordinated configuration optimization model for power and hydrogen transmission capacity, taking the minimization of the net present value of the total system cost during the planning period as the objective function; Model solving module: used to solve the optimization model of the coordinated configuration of power transmission and hydrogen transmission capacity by constructing constraint conditions to obtain the optimal solution of the coordinated configuration method of power transmission and hydrogen transmission capacity.

6. The method according to claim 1, characterized in that The technical and economic parameters include.

7. The method according to claim 1, characterized in that The model building module is specifically used for: Taking the minimization of the net present value of the total system cost during the planning period as the goal, the objective function is constructed as shown in Formula 1, and the coordinated configuration optimization model of power transmission and hydrogen transmission capacity is established: Among them, T is the length of the planning period, Q ij,t 、M ij , C ij,t are the capacity, distance and unit capacity distance cost of the transmission line connecting the i-th region and the j-th region, respectively. ij,t and X ij,t are the capacity of the hydrogen pipeline connecting the i-th area and the j-th area and the cost per unit capacity distance respectively.

8. The method according to claim 1, characterized in that: The model solving module is specifically used for: The power balance constraints of each region are set through Formula 2 to ensure the balance of power supply and demand in each region: Among them, g,r is the peak load output confidence factor of the g-th power source in region r, pe rj,t is the power value transmitted from region r to region j, pe ir,t is the power value transmitted from the ith region to the region r, le ir is the line loss rate of the transmission channel connecting the i-th region and the r-th region, le r is the average transmission and distribution line loss rate in region r, h e is the reserve factor of the electric load, Le r,t is the predicted maximum power load of region r in year t; Formula 3 is used to set the hydrogen production and sales balance constraints in each region to ensure the hydrogen flow production and sales balance in each region: Among them, EF e is the efficiency of the electrolyzer, CT e is the calorific value conversion coefficient between electrical energy and hydrogen energy, ph rj,t is the hydrogen flow rate from region r to region j, ph ir,t is the hydrogen flow rate from the ith region to the rth region, lh ir is the loss rate of the hydrogen pipeline connecting the i-th area and the r-th area, h h is the reserve factor of hydrogen load, Lh r,t is the predicted maximum green hydrogen demand of region r in year t; The power balance constraint of each region is set by formula 4 to ensure the balance of power supply and demand in each region: Among them, Pe rj,t is the amount of electricity transmitted from region r to region j in year t, Pe ir,t Lc is the amount of electricity delivered from region i to region r in year t. r,t The predicted value of electricity demand in region r in year t, p s is the charging and discharging efficiency of the s-type energy storage; The hydrogen mass balance constraint of each region is set through formula 5 to ensure the balance of hydrogen mass production and sales in each region: Among them, U e,r,t is the utilization hours of the electrolytic cell in the rth area in the tth year, Ph rj,t is the mass of hydrogen delivered from region r to region j in year t, Ph ir,t is the mass of hydrogen delivered from region i to region r in year t, Lq r,t The forecast value of green hydrogen demand in region r in year t, p p The charging and discharging efficiency of hydrogen storage; The transmission capacity constraint is set by formula 6 to ensure that the power of each inter-regional transmission channel does not exceed its capacity: p.e. ij,t ≤Q ij,t Formula 6: The hydrogen transmission power constraint is set by formula 7 to ensure that the flow value of each cross-regional hydrogen transmission pipeline does not exceed its capacity: ph ij,t ≤D ij,t Formula 7; The transmission power constraint is set by formula 8 to ensure that the annual transmission power of each inter-regional transmission line does not exceed its annual maximum transmission power: Pe ij,t ≤Q ij,t ·Ue ij Formula 8; Among them, Ue ij is the maximum utilization hours of the transmission line connecting the i-th region and the j-th region; The hydrogen transmission quality constraint is set by formula 9 to ensure that the annual hydrogen transmission volume of each cross-regional hydrogen transmission pipeline does not exceed its annual maximum hydrogen transmission volume: Ph ij,t ≤D ij,t ·Uh ij Formula 9; Among them, Uh ij is the maximum utilization hours of the hydrogen pipeline connecting the i-th area and the j-th area; Formula 10 is used to set the construction scale constraint of the transmission channel, taking into account factors such as raw material supply and construction speed, so that the construction scale of the cross-regional transmission channel does not exceed its maximum construction capacity: 0 ≤ Q ij,t -Q ij,t-1 ≤Qm ij,t Formula 10: Among them, Qm ij,t is the maximum construction capacity of the transmission channel connecting the ith region and the jth region in year t; Formula 11 is used to set the construction scale constraint of hydrogen pipelines, taking into account the raw material supply and construction speed factors, so that the construction scale of cross-regional hydrogen pipelines does not exceed its maximum construction capacity: 0≤D ij,t -D ij,t-1 ≤Dm ij,t Formula 11; Among them, Dm ij,t is the maximum construction capacity of the hydrogen pipeline connecting the ith region and the jth region in year t; Among them, Ce t is the upper limit of carbon emissions of the power system in year t.

9. An electronic device, characterized in that: include: processor; as well as, A memory arranged to store computer executable instructions, wherein the computer executable instructions, when executed, cause the processor to implement the steps of the method for collaborative optimization configuration of power transmission and hydrogen transmission capacity as described in any one of claims 1 to 4.

10. A storage medium, characterized in that: Used to store computer executable instructions, which, when executed, implement the steps of the method for collaborative optimization configuration of power transmission and hydrogen transmission capacity as described in any one of claims 1 to 4.

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