Method, equipment and medium for evaluating the flexible adjustment potential of electric-hydrogen synergistic system

Abstract

The present application provides a method, device and medium for evaluating the flexible adjustment potential of an electric-hydrogen synergistic system. The method according to the present application includes: calculating the flexible adjustment potential of the electricity consumption side of the electric-hydrogen synergistic system; calculating the flexible adjustment potential of the power generation side of the electric-hydrogen synergistic system; calculating the flexible adjustment potential of the energy storage side of the electric-hydrogen synergistic system; and, evaluating the overall flexible adjustment potential of the electric-hydrogen synergistic system based on the flexible adjustment potential of the electricity consumption side of the electric-hydrogen synergistic system, the flexible adjustment potential of the power generation side of the electric-hydrogen synergistic system, and the flexible adjustment potential of the energy storage side of the electric-hydrogen synergistic system. The technical solution provided by the present application can accurately evaluate the comprehensive value of improving the flexibility of the power system by guiding the coordinated development of hydrogen energy and the power system, alleviate the pressure on the power system to ensure supply, and help the power system to absorb new energy.

Description

Technical Field

[0001] This document relates to the technical field of flexible regulation potential assessment of electric-hydrogen synergistic systems, and in particular to a method, device and medium for flexible regulation potential assessment of electric-hydrogen synergistic systems. Background Art

[0002] In the future, hydrogen energy will be mainly sourced from renewable energy power generation, and hydrogen production from electricity will become an important form of new energy consumption and utilization. In particular, given the highly flexible and adjustable characteristics of hydrogen production devices for input power, it is expected to become a new peak-shaving resource for the power system. Currently, there are few methods for evaluating the peak-shaving potential of electrolyzers participating in power systems. Most of the current evaluations are based only on the operating characteristics of the electrolyzer equipment itself, and the allowable fluctuation range of its output, that is, the maximum allowable output minus the minimum allowable output, is used as the peak-shaving potential, but the impact of its interactive operation mode with the power system on its participation in the peak-shaving of the power system is not fully considered. The existing patent CN117856271A solves the problem of inaccurate evaluation of the peak-shaving potential of electrolyzers participating in power systems, and initially fills this gap.

[0003] However, from a broader perspective, under the trend of coordinated development of hydrogen energy and power systems, in addition to the hydrogen production link, many other links also have flexible adjustment potential, such as hydrogen power generation, direct hydrogen utilization, hydrogen storage, etc., which will greatly enrich the flexibility resource options of the power system. At present, there is no public method to comprehensively evaluate the flexible adjustment potential of the electric hydrogen synergy system. Summary of the invention

[0004] Embodiments of the present invention provide a method, device and medium for evaluating the flexible adjustment potential of an electric-hydrogen cooperative system.

[0005] The embodiment of the present invention provides a method for evaluating the flexible adjustment potential of an electric-hydrogen cooperative system, which specifically includes:

[0006] S1. Calculate the potential for flexible regulation of the electricity consumption side of the electric-hydrogen synergistic system;

[0007] S2. Calculate the flexible adjustment potential of the power generation side of the electric-hydrogen synergistic system;

[0008] S3. Calculate the flexible adjustment potential of the energy storage side of the electric-hydrogen synergistic system; and

[0009] S4. Evaluate the overall flexible regulation potential of the electric-hydrogen synergistic system based on the flexible regulation potential on the electricity consumption side of the electric-hydrogen synergistic system, the flexible regulation potential on the power generation side of the electric-hydrogen synergistic system, and the flexible regulation potential on the energy storage side of the electric-hydrogen synergistic system.

[0010] An embodiment of the present invention further provides an electronic device, including:

[0011] processor; and,

[0012] A memory arranged to store computer executable instructions, which, when executed, cause the processor to perform the steps of the above-mentioned method for evaluating the flexible adjustment potential of the electric-hydrogen cooperative system.

[0013] An embodiment of the present invention also provides a storage medium for storing computer-executable instructions, which, when executed, implement the steps of the method for evaluating the flexible adjustment potential of the electric-hydrogen cooperative system as described above.

[0014] The present disclosure provides a method, device and medium for evaluating the flexible adjustment potential of an electric-hydrogen synergistic system. The advantages are that the flexible adjustment potential of the electric-hydrogen synergistic system is systematically evaluated, and elements with flexible adjustment potential in the electric-hydrogen synergistic system are considered. In addition to conventional flexibility resources of the power system, new links with flexible adjustment potential such as electric hydrogen production, hydrogen power generation, and hydrogen energy storage are added through the coupling and coordination of electricity and hydrogen energy systems. The flexible adjustment capabilities will be improved on the electricity consumption side, the power generation side, and the energy storage side, respectively, to help improve the flexibility of the power system and absorb new energy. It can accurately evaluate the comprehensive value of improving the flexibility of the power system by guiding the coordinated development of hydrogen energy and the power system, alleviate the pressure on power supply security, and help the power system absorb new energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 This is a flow chart of a method for evaluating the flexible adjustment potential of an electric-hydrogen synergistic system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0017] 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.

[0018] Method Embodiment

[0019] According to an embodiment of the present invention, a method for evaluating the flexible adjustment potential of an electric-hydrogen cooperative system is provided. Figure 1 This is a flow chart of a method for evaluating the flexible adjustment potential of an electric-hydrogen cooperative system according to an embodiment of the present invention. Figure 1 As shown, the embodiment of the present invention Figure 1 The flow chart of the method for evaluating the flexible adjustment potential of the electric-hydrogen cooperative system according to an embodiment of the present invention specifically includes:

[0020] S1. Calculate the potential for flexible regulation of the electricity consumption side of the electric-hydrogen synergistic system;

[0021] Unlike general electricity loads, electric hydrogen production equipment (electrolyzers) can be operated with highly flexible load changes according to the needs of peak load regulation. As an adjustable load, the electrolyzer can participate in the peak load regulation of the power system and can be divided into two working conditions: upward peak regulation and downward peak regulation. Among them, downward peak regulation refers to reducing the load of the electrolyzer and reducing the load demand on the power system, thereby alleviating the pressure on the power system to ensure supply during periods of tight supply and demand in the power system. Its peak-shaving potential is the maximum range in which the electrolyzer can allow the power input from the power system to be reduced at each moment. Upward peak regulation refers to increasing the load of the electrolyzer and increasing the load demand on the power system, thereby helping the power system to absorb surplus new energy during periods of loose supply and demand in the power system and difficult to absorb new energy. Its peak-shaving potential is the maximum range in which the electrolyzer can allow the power input from the power system to be increased at each moment and can actually absorb the surplus new energy in the power system. On this basis, the flexible adjustment potential of the electricity consumption side of the electric-hydrogen synergistic system is further calculated.

[0022] S1 specifically includes:

[0023] S11. Predict the power received by the electrolyzer from the power system at each moment by predicting the typical output power of the self-built new energy in the hydrogen production project and the typical operating power of the electrolyzer at each moment;

[0024] Predict the typical output power of self-built new energy in hydrogen production projects at different times:

[0025] (1);

[0026] Where: E t The first time in the scheduling cycle (which may be one day or one week in actual operation) t The expected output power of self-built new energy in the hydrogen production project at the moment, E n,t For the past n In the scheduling cycle t The output power of self-built renewable energy in the electric hydrogen production project at the moment, and N is the number of statistical dispatch cycles.

[0027] Predict the typical operating power of the electrolyzer in the hydrogen production project at each time:

[0028] (2);

[0029] Where: H t The first t The expected operating power of the electrolyzer at the time, H n,t For the past n In the scheduling cycle t The electrolytic cell operating power at the moment, N is the number of statistical scheduling cycles.

[0030] Predict the power received by the electrolyzer from the power system at each moment:

[0031] Because part of the electricity used by the electrolyzer comes from self-built renewable energy output and part comes from electricity received from the external power system, the power received by the electrolyzer from the power system can be calculated by subtracting the results of (1) and (2).

[0032] (3);

[0033] Where: G t The first t The electrolyzer receives power from the power system at this moment. H t The first t The expected operating power of the electrolyzer at the time, E t The first t The expected output power of self-built new energy in the hydrogen production project at that time.

[0034] S12, calculating the minimum operating power of the electrolyzer, and calculating the minimum power received by the electrolyzer from the power system at each moment through the minimum operating power of the electrolyzer and the typical output power of the self-built new energy in the hydrogen production project at each moment;

[0035] Calculate the minimum operating power of the electrolyzer:

[0036] (4);

[0037] Where: H min is the minimum operating power of the electrolyzer, h min is the minimum operating power of a single electrolyzer device, M min The minimum number of devices required to start up the electrolyzer.

[0038] Calculate the minimum power that the electrolyzer receives from the power system at each moment:

[0039] Considering the minimum operating power of the electrolyzer and the consumption and utilization of self-built new energy at each moment, the difference between the two is the minimum power received by the electrolyzer from the power system at each moment.

[0040] (5);

[0041] Where: G min,t The first t The minimum power that the electrolyzer receives from the power system at the moment, H min is the minimum operating power of the electrolyzer, E t The first t The expected output power of self-built new energy in the hydrogen production project at that time.

[0042] S13, calculating the potential for downward peak regulation of the electrolytic cell at each moment according to the electric power received by the electrolytic cell from the power system at each moment and the minimum electric power received by the electrolytic cell from the power system at each moment;

[0043] Calculate the potential for downward peak regulation of the electrolyzer at each moment:

[0044] (6);

[0045] Where: P down,ec,t The first t The potential for downward peak shifting of electrolyzers at the moment, G t The first t The electrolyzer receives power from the power system at this moment. G min,t The first t The minimum power that the electrolyzer receives from the power system at that moment.

[0046] S14, calculating the maximum potential for increasing the electric power received by the electrolyzer from the power system at each moment according to the maximum electric power that the electrolyzer can receive from the power system and the electric power received by the electrolyzer from the power system at each moment;

[0047] Calculate the maximum potential increase in the power received by the electrolyzer from the power system at each moment:

[0048] (7);

[0049] Where: U t The first t The maximum potential increase in power received by the electrolyzer from the power system at the moment,R is the maximum power that the electrolyzer can receive from the power system (generally the rated capacity of the distribution transformer that connects the electrolyzer to the power system), G t The first t The electrolyzer at this moment receives electric power from the power system.

[0050] S15, calculating the surplus renewable energy power generation of the power system at each moment according to the overall load demand of the power system and the overall minimum output of other power sources in the power system except renewable energy power generation;

[0051] Calculate the surplus renewable energy power generation capacity of the power system at each moment:

[0052] (8);

[0053] Where: S t The first t The power system has surplus renewable energy power at all times. D t The first t The overall load demand of the power system at the moment (determined according to the actual situation of the power system dispatching operation, as an external input parameter), O t The first t The overall minimum output of power sources other than renewable energy power generation in the power system at the moment (determined according to the actual dispatching and operation of the power system as an external input parameter).

[0054] S16, calculating the potential for upward peak regulation of the electrolytic cell at each moment according to the maximum potential for increasing the electric power received by the electrolytic cell from the power system at each moment and the surplus new energy power generation of the power system at each moment;

[0055] Calculate the potential for electrolytic cell peak regulation at each moment:

[0056] (9);

[0057] Where: P up,ec,t The first t The potential for electrolyzers to peak upward at the moment, U t The first t The maximum potential increase in power received by the electrolyzer from the power system at the moment, S t The first t The power system always has surplus renewable energy power generation capacity.

[0058] S17, calculating the peak-shaving potential of the electrolytic cell at each moment according to the potential for downward peak-shaving of the electrolytic cell at each moment and the potential for upward peak-shaving of the electrolytic cell at each moment;

[0059] Calculate the peak load potential of electrolyzer at each moment:

[0060] The peak-shaving potential of an electrolyzer consists of two parts: "downward peak-shaving potential" and "upward peak-shaving potential".

[0061] (10);

[0062] Where: P ec,t The first t The peak-shaving potential of electrolyzers at all times, P down,ec,t The first t The potential for downward peak shifting of electrolyzers at the moment, P up,ec,t The first t The potential for electrolyzers to peak upward at different times;

[0063] S18, obtaining the peak-shaving potential of other flexible adjustment resources on the power consumption side according to the downward peak-shaving potential of other flexible adjustment resources on the power consumption side at each moment and the upward peak-shaving potential of other flexible adjustment resources on the power consumption side at each moment;

[0064] Obtain the peak-shaving potential of other flexible adjustment resources on the electricity consumption side:

[0065] (11);

[0066] Where: P od,t The first t The peak-shaving potential of other flexible adjustment resources on the electricity consumption side at all times, P down,od,t The first t The potential for downward peak regulation by other flexible adjustment resources on the electricity consumption side at the moment, P up,od,t The first t The potential for upward peak regulation by other flexible adjustment resources on the electricity consumption side at all times.

[0067] S19. Calculate the overall flexible regulation potential of the electricity-consuming side of the electricity-hydrogen cooperative system based on the peak regulation potential of the electrolyzer at each moment and the peak regulation potential of other flexible regulation resources on the electricity-consuming side.

[0068] Calculate the overall flexible adjustment potential of the electricity consumption side of the electric-hydrogen synergy system:

[0069] (12);

[0070] (13);

[0071] (14);

[0072] Where: P down,d,t The first t The potential of various electricity-side resources to adjust the peak downward in the electricity-hydrogen synergy system at all times. P down,ec,t The first t The potential for downward peak shifting of electrolyzers at the moment, P down,od,t The first t The potential for downward peak regulation by other flexible adjustment resources on the electricity consumption side at the moment, P up,d,t The first t The potential for upward peak regulation of various electricity-side resources in the electricity-hydrogen coordinated system at all times, P up,ec,t The first t The potential for electrolyzers to peak upward at the moment, P up,od,t The first t The potential for upward peak regulation of other flexible adjustment resources on the electricity consumption side at the moment, P d,t The first t The overall flexible adjustment potential of various electricity-side resources in the electric-hydrogen coordinated system at all times.

[0073] S2. Calculate the flexible adjustment potential of the power generation side of the electric-hydrogen synergistic system; S2 specifically includes:

[0074] S21. Obtain the downward peak-shaving potential of the fuel cell by calculating the minimum technical output of the fuel cell;

[0075] Calculate the minimum technical output of a fuel cell:

[0076] (15);

[0077] Where: K fc Minimum technical output for fuel cells, is the minimum output coefficient of the fuel cell, C fc is the installed capacity of fuel cells.

[0078] Calculate the potential of fuel cells for downward peak shaving:

[0079] (16);

[0080] Where: P down,fc,t The first t The potential of fuel cells to reduce peak loads at the moment, J fc,t The first t Fuel cells are generating electricity at all times. K fc Minimum technical contribution for fuel cells;

[0081] S22. Obtaining the upward peak-shaving potential of the fuel cell by calculating the maximum technical output of the fuel cell;

[0082] Calculate the maximum technical output of a fuel cell:

[0083] (17);

[0084] Where: L fc,t The first t The maximum technical output of fuel cells at all times, β fc,t The first t The capacity ratio of the fuel cell that cannot be used for maintenance or other reasons at any time. C fc is the installed capacity of fuel cells.

[0085] Calculate the potential of fuel cells for upward peak shaving:

[0086] (18);

[0087] Where: P up,fc,t The first t The potential of fuel cells to peak at all times, L fc,t The first t The maximum technical output of fuel cells at all times, J fc,t The first t Fuel cell power generation at all times;

[0088] S23. Obtain the potential of downward peak regulation of hydrogen-fired turbines by calculating the minimum technical output of hydrogen-fired turbines;

[0089] Calculate the minimum technical output of a hydrogen-fired turbine:

[0090] (19);

[0091] Where: Kht The minimum technical output of a hydrogen turbine. is the minimum output coefficient of the hydrogen-fired turbine, C ht is the installed capacity of the hydrogen-fired turbine.

[0092] Calculate the potential for downward peak shaving of hydrogen turbines:

[0093] (20);

[0094] Where: P down,ht,t The first t The potential of hydrogen turbines to reduce peak load at any time. J ht,t The first t The hydrogen turbine generates electricity at all times. K ht It is the minimum technical output of a hydrogen-fired turbine.

[0095] S24. Obtain the peak-shaving potential of the hydrogen-fired turbine by calculating the maximum technical output of the hydrogen-fired turbine;

[0096] Calculate the maximum technical output of a hydrogen-fired turbine:

[0097] (twenty one);

[0098] Where: L ht,t The first t The maximum technical output of hydrogen turbines at all times, β ht,t The first t The capacity ratio of the hydrogen turbine that cannot be used for maintenance or other reasons at any given moment. C ht is the installed capacity of the hydrogen-fired turbine.

[0099] Calculate the potential for hydrogen turbines to increase peak load:

[0100] (twenty two);

[0101] Where: P up,ht,t The first t The potential of hydrogen-fired turbines to increase peak load at any time. J ht,t The first t The hydrogen turbine generates electricity at all times.

[0102] S25, obtaining the peak regulation potential of other flexible regulation resources on the power generation side by calculating the downward peak regulation potential of other flexible regulation resources on the power generation side at each moment and the upward peak regulation potential of other flexible regulation resources on the power generation side at each moment;

[0103] Obtain the peak-shaving potential of other flexible adjustment resources on the power generation side:

[0104] (twenty three);

[0105] Where: P og,t The first t The peak-shaving potential of other flexible adjustment resources on the power generation side at the moment, P down,og,t The first t The potential for downward peak regulation by other flexible regulation resources on the power generation side at the moment, P up,og,t The first t The potential for upward peak regulation of other flexible regulation resources on the power generation side at the moment

[0106] S26. Calculate the overall flexible regulation potential of the power generation side of the electric-hydrogen coordinated system based on the downward peak regulation potential of the fuel cell, the upward peak regulation potential of the fuel cell, the downward peak regulation potential of the hydrogen turbine, the upward peak regulation potential of the hydrogen turbine and the peak regulation potential of other flexible regulation resources on the power generation side.

[0107] Calculate the overall flexible adjustment potential of the power generation side of the electric-hydrogen synergistic system:

[0108] (twenty four);

[0109] (25);

[0110] (26);

[0111] Where: P down,g,t The first t The potential of various power generation resources to adjust the peak downward in the electricity-hydrogen synergy system at all times. P down,fc,t The first t The potential of fuel cells to reduce peak loads at the moment, P down,ht,t The first t The potential of hydrogen turbines to reduce peak load at any time. P down,og,t The first t The potential for downward peak regulation by other flexible regulation resources on the power generation side at the moment, P up,g,tThe first t The potential for upward peak regulation of various power generation resources in the electricity-hydrogen coordinated system at all times. P up,fc,t The first t The potential of fuel cells to peak at all times, P up,ht,t The first t The potential of hydrogen-fired turbines to increase peak load at any time. P up,og,t The first t The potential for upward peak regulation of other flexible regulation resources on the power generation side at the moment, P g,t The first t The overall flexible adjustment potential of various power generation side resources in the electric-hydrogen synergistic system at all times.

[0112] S3. Calculate the flexible adjustment potential of the energy storage side of the electric-hydrogen synergistic system; S3 specifically includes:

[0113] S31. Obtain the potential of hydrogen energy storage for downward peak regulation by calculating the minimum power generation technology output of hydrogen energy storage;

[0114] Calculate the minimum power generation technology output for hydrogen energy storage:

[0115] (27);

[0116] Where: K hs Contribute to the minimum power generation technology for hydrogen energy storage, is the minimum power generation output coefficient of hydrogen energy storage, C hs Installed power generation capacity for hydrogen energy storage.

[0117] Calculate the potential of hydrogen energy storage for downward peak shifting:

[0118] (28);

[0119] Where: P down,hs,t The first t The potential of hydrogen energy storage for downward peak shifting at all times, J hs,t The first t Hydrogen energy storage power generation output at all times, K hs Contribute to the minimum power generation technology for hydrogen energy storage.

[0120] S32. Obtain the potential for upward peak regulation of hydrogen energy storage by calculating the maximum technical power generation output of hydrogen energy storage and the maximum power generation capacity corresponding to the scale of hydrogen stored in the hydrogen storage facility;

[0121] Calculate the maximum technical output of hydrogen energy storage:

[0122] (29);

[0123] Where: L hs,t The first t The maximum power generation technology output of hydrogen energy storage at all times, β hs,t The first t The capacity ratio of hydrogen energy storage that cannot generate electricity due to maintenance and other reasons at any time. C hs Installed power generation capacity for hydrogen energy storage.

[0124] Calculate the maximum power generation capacity corresponding to the scale of hydrogen stored in the hydrogen storage facility:

[0125] (30);

[0126] Where: X hs,t The first t The maximum power generation capacity corresponding to the amount of hydrogen stored in the hydrogen storage facility at any given moment, ɳ hs is the hydrogen-to-electricity conversion coefficient of hydrogen energy storage, λ hs is the hydrogen release rate of the hydrogen storage facility, Y hs,t The first t The amount of hydrogen stored in hydrogen storage facilities at any given time.

[0127] Calculate the potential of hydrogen storage for upward peak shifting:

[0128] (31);

[0129] Where: P up,hs,t The first t The potential of hydrogen energy storage for peak load regulation at all times, L hs,t The first t The maximum power generation technology output of hydrogen energy storage at all times, X hs,t The first t The maximum power generation capacity corresponding to the amount of hydrogen stored in the hydrogen storage facility at any given moment, J hs,t The first t Hydrogen energy storage generates electricity at all times.

[0130] S33, according to the potential of downward peak regulation of other flexible regulation resources on the energy storage side at each moment and the potential of upward peak regulation of other flexible regulation resources on the energy storage side at each moment, the peak regulation potential of other flexible regulation resources on the energy storage side is obtained;

[0131] Obtain the peak-shaving potential of other flexible regulation resources on the energy storage side:

[0132] (32);

[0133] Where: P os,t The first t The peak-shaving potential of other flexible adjustment resources on the energy storage side at the moment, P down,os,t The first t The potential for downward peak regulation by other flexible regulation resources on the energy storage side at the moment, P up,os,t The first t The potential for upward peak regulation by other flexible adjustment resources on the energy storage side at the moment.

[0134] S34. Calculate the overall flexible regulation potential of the energy storage side of the electric-hydrogen coordinated system based on the downward peak regulation potential of hydrogen energy storage, the upward peak regulation potential of hydrogen energy storage, and the peak regulation potential of other flexible regulation resources on the energy storage side.

[0135] Calculate the overall flexible adjustment potential of the energy storage side of the electric-hydrogen synergistic system:

[0136] (33);

[0137] (34);

[0138] (35);

[0139] Where: P down,s,t The first t The potential of various energy storage resources in the electricity-hydrogen coordinated system to adjust the peak downward at any time. P down,hs,t The first t The potential of hydrogen energy storage for downward peak shifting at all times, P down,os,t The first t The potential for downward peak regulation by other flexible regulation resources on the energy storage side at the moment, P up,s,t The first t The potential of various energy storage resources in the electricity-hydrogen coordinated system to adjust the peak at any time. P up,hs,t The first tThe potential of hydrogen energy storage for peak load regulation at all times, P up,os,t The first t The potential for upward peak regulation by other flexible regulation resources on the energy storage side at the moment, P s,t The first t The overall flexible adjustment potential of various energy storage resources in the electric-hydrogen coordinated system at all times.

[0140] S4. Evaluate the overall flexible regulation potential of the electric-hydrogen synergistic system based on the flexible regulation potential on the electricity consumption side of the electric-hydrogen synergistic system, the flexible regulation potential on the power generation side of the electric-hydrogen synergistic system, and the flexible regulation potential on the energy storage side of the electric-hydrogen synergistic system.

[0141] Since the downward peak-shaving of resources on the electricity consumption side means reducing the electricity load (equivalent to increasing power generation), and the downward peak-shaving of resources on the power generation and energy storage sides means reducing power generation, the positive and negative relationships between the two are opposite, and the same is true for upward peak-shaving. It is stipulated here that the overall downward peak-shaving of the electric-hydrogen synergistic system is taken in the direction of the downward peak-shaving of resources on the power generation and energy storage sides, that is, it includes the downward peak-shaving potential of resources on the power generation and energy storage sides and the upward peak-shaving potential of resources on the electricity consumption side; the overall upward peak-shaving of the electric-hydrogen synergistic system is taken in the direction of the upward peak-shaving of resources on the power generation and energy storage sides, that is, it includes the upward peak-shaving potential of resources on the power generation and energy storage sides and the downward peak-shaving potential of resources on the power consumption side. The overall flexible adjustment potential of the energy storage side of the electric-hydrogen synergistic system is calculated as follows:

[0142] (36);

[0143] (37);

[0144] (38);

[0145] Where: P down,t The first t The overall potential of the electric-hydrogen synergistic system to reduce peak load at all times. P up,d,t The first t The potential for upward peak regulation of various electricity-side resources in the electricity-hydrogen coordinated system at all times, P down,g,t The first t The potential of various power generation resources to adjust the peak downward in the electricity-hydrogen synergy system at all times. P down,s,t The first t The potential of various energy storage resources in the electricity-hydrogen coordinated system to adjust the peak downward at any time. P up,t The first tThe overall upward peak-shaving potential of the electric-hydrogen synergistic system at all times, P down,d,t The first t The potential of various electricity-side resources to adjust the peak downward in the electricity-hydrogen synergy system at all times. P up,g,t The first t The potential for upward peak regulation of various power generation resources in the electricity-hydrogen coordinated system at all times. P up,s,t The first t The potential of various energy storage resources in the electricity-hydrogen coordinated system to adjust the peak at any time. P t The first t The overall flexible adjustment potential of the electric-hydrogen synergistic system at all times.

[0146] By adopting the embodiments of the present invention, the following beneficial effects are achieved:

[0147] The embodiments of the present invention can systematically evaluate the flexible adjustment potential of the electric-hydrogen coordinated system, and consider the elements with flexible adjustment potential in the electric-hydrogen coordinated system. In addition to the conventional flexibility resources of the power system, through the coupling and coordination of the power and hydrogen energy systems, new links with flexible adjustment potential such as electric hydrogen production, hydrogen power generation, and hydrogen energy storage are added. The flexible adjustment capabilities will be improved on the electricity consumption side, the power generation side, and the energy storage side, respectively, to help improve the flexibility of the power system and absorb new energy. It can accurately evaluate the comprehensive value of improving the flexibility of the power system by guiding the coordinated development of hydrogen energy and the power system, alleviate the pressure on power supply security, and help the power system absorb new energy.

[0148] Device Example 1

[0149] According to an embodiment of the present invention, there is provided an electronic device, including:

[0150] processor; and,

[0151] A memory is arranged to store computer executable instructions, which when executed cause the processor to perform the steps of the above method embodiments.

[0152] Device Example 2

[0153] An embodiment of the present invention provides a storage medium for storing computer-executable instructions, wherein the computer-executable instructions implement the steps of the above method embodiment when executed.

[0154] 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 evaluating the flexible regulation potential of an electric-hydrogen synergistic system, characterized in that include: S1. Calculate the potential for flexible regulation of the electricity consumption side of the electric-hydrogen synergistic system; S2. Calculate the flexible adjustment potential of the power generation side of the electric-hydrogen synergistic system; S3. Calculate the flexible adjustment potential of the energy storage side of the electric-hydrogen synergistic system; and S4. Evaluate the overall flexible regulation potential of the electric-hydrogen coordinated system according to the flexible regulation potential on the electricity consumption side of the electric-hydrogen coordinated system, the flexible regulation potential on the power generation side of the electric-hydrogen coordinated system, and the flexible regulation potential on the energy storage side of the electric-hydrogen coordinated system; The S1 specifically includes: S11. Predict the power received by the electrolyzer from the power system at each moment by predicting the typical output power of the self-built new energy in the hydrogen production project and the typical operating power of the electrolyzer at each moment; S12, calculating the minimum operating power of the electrolyzer, and calculating the minimum power received by the electrolyzer from the power system at each moment through the minimum operating power of the electrolyzer and the typical output power of the self-built new energy in the hydrogen production project at each moment; S13, calculating the potential for downward peak regulation of the electrolytic cell at each moment according to the electric power received by the electrolytic cell from the power system at each moment and the minimum electric power received by the electrolytic cell from the power system at each moment; S14, calculating the maximum potential for increasing the electric power received by the electrolyzer from the power system at each moment according to the maximum electric power received by the electrolyzer from the power system and the electric power received by the electrolyzer from the power system at each moment; S15, calculating the surplus renewable energy power generation of the power system at each moment according to the overall load demand of the power system and the overall minimum output of other power sources in the power system except renewable energy power generation; S16, calculating the potential for upward peak regulation of the electrolytic cell at each moment according to the maximum potential for increasing the electric power received by the electrolytic cell from the power system at each moment and the surplus new energy power generation of the power system at each moment; S17, calculating the peak-shaving potential of the electrolytic cell at each moment according to the potential for downward peak-shaving of the electrolytic cell at each moment and the potential for upward peak-shaving of the electrolytic cell at each moment; S18, obtaining the peak-shaving potential of other flexible adjustment resources on the power consumption side according to the downward peak-shaving potential of other flexible adjustment resources on the power consumption side at each moment and the upward peak-shaving potential of other flexible adjustment resources on the power consumption side at each moment; S19, calculating the overall flexible regulation potential of the electricity-consumption side of the electricity-hydrogen coordinated system according to the peak regulation potential of the electrolyzer at each moment and the peak regulation potential of other flexible regulation resources on the electricity-consumption side; The S2 specifically includes: S21. Obtain the downward peak-shaving potential of the fuel cell by calculating the minimum technical output of the fuel cell; S22. Obtaining the upward peak-shaving potential of the fuel cell by calculating the maximum technical output of the fuel cell; S23. Obtain the potential of downward peak regulation of hydrogen-fired turbines by calculating the minimum technical output of hydrogen-fired turbines; S24. Obtain the peak-shaving potential of the hydrogen-fired turbine by calculating the maximum technical output of the hydrogen-fired turbine; S25, obtaining the peak regulation potential of other flexible regulation resources on the power generation side by calculating the downward peak regulation potential of other flexible regulation resources on the power generation side at each moment and the upward peak regulation potential of other flexible regulation resources on the power generation side at each moment; S26, calculating the overall flexible regulation potential of the power generation side of the electric-hydrogen coordinated system based on the downward peak regulation potential of the fuel cell, the upward peak regulation potential of the fuel cell, the downward peak regulation potential of the hydrogen turbine, the upward peak regulation potential of the hydrogen turbine, and the peak regulation potential of other flexible regulation resources on the power generation side; The S3 specifically includes: S31. Obtain the potential of hydrogen energy storage for downward peak regulation by calculating the minimum power generation technology output of hydrogen energy storage; S32. Obtain the potential for upward peak regulation of hydrogen energy storage by calculating the maximum technical power generation output of hydrogen energy storage and the maximum power generation capacity corresponding to the scale of hydrogen stored in the hydrogen storage facility; S33, according to the potential of downward peak regulation of other flexible regulation resources on the energy storage side at each moment and the potential of upward peak regulation of other flexible regulation resources on the energy storage side at each moment, the peak regulation potential of other flexible regulation resources on the energy storage side is obtained; S34. Calculate the overall flexible regulation potential of the energy storage side of the electric-hydrogen coordinated system based on the downward peak regulation potential of hydrogen energy storage, the upward peak regulation potential of hydrogen energy storage, and the peak regulation potential of other flexible regulation resources on the energy storage side.

2. The method according to claim 1, characterized in that The S11 specifically includes: Formula 1 is used to predict the typical output power of self-built new energy in hydrogen production projects at each time: Formula 1; in, E t The first t The expected output power of self-built new energy in the hydrogen production project at the moment, E n,t For the past n In the scheduling cycle t The output power of self-built renewable energy in the hydrogen production project at the moment, N is the number of statistical dispatch cycles; The typical operating power of the electrolyzer in the hydrogen production project at each moment is predicted by formula 2: Formula 2: in, H t The first t The expected operating power of the electrolyzer at the time, H n,t For the past n In the scheduling cycle t The operating power of the electrolyzer at the moment, N is the number of statistical scheduling cycles; Formula 3 is used to predict the power received by the electrolyzer from the power system at each moment: Formula 3: in, G t The first t The electrolyzer receives power from the power system at this moment. H t The first t The expected operating power of the electrolyzer at the time, E t The first t The expected output power of self-built new energy in the hydrogen production project at the moment; The S12 specifically includes: The minimum operating power of the electrolyzer is calculated by formula 4: Formula 4: in, H min is the minimum operating power of the electrolyzer, h min is the minimum operating power of a single electrolyzer device, M min The minimum number of devices to be started for the electrolyzer; The minimum power received by the electrolyzer from the power system at each moment is calculated by formula 5: Considering the minimum operating power of the electrolyzer and the consumption and utilization of self-built new energy at each moment, the difference between the two is the minimum power received by the electrolyzer from the power system at each moment; Formula 5: in, G min,t The first t The minimum power that the electrolyzer receives from the power system at the moment, H min is the minimum operating power of the electrolyzer, E t The first t The expected output power of self-built new energy in the hydrogen production project at the moment; The S13 specifically includes: The potential for downward peak regulation of the electrolyzer at each moment is obtained through formula 6: Formula 6: in, P down,ec,t The first t The potential for downward peak shifting of electrolyzers at the moment, G t The first t The electrolyzer receives power from the power system at this moment. G min,t The first t The minimum power that the electrolyzer receives from the power system at the moment; The S14 specifically includes: The maximum potential for increasing the power received by the electrolyzer from the power system at each moment is calculated by formula 7: Formula 7: in, U t The first t The maximum potential increase in power received by the electrolyzer from the power system at the moment, R is the maximum power that the electrolyzer can receive from the power system, G t The first t The electrolyzer receives electric power from the power system at the moment; The S15 specifically includes: The surplus renewable energy power generation of the power system at each moment is calculated by formula 8: Formula 8: Where: S t The first t The power system has surplus renewable energy power at all times. D t The first t The total load demand of the power system at the moment, O t The first t The overall minimum output of other power sources in the power system at the moment, except for renewable energy generation; The S16 specifically includes: The potential for upward peak regulation of the electrolyzer at each moment is calculated by formula 9: Formula 9 ； Where: P up,ec,t The first t The potential for electrolyzers to peak upward at the moment, U t The first t The maximum potential increase in power received by the electrolyzer from the power system at the moment, S t The first t The power system has surplus renewable energy power at all times; The S17 specifically includes: The peak load potential of the electrolyzer at each moment is obtained through formula 10: Formula 10: in, P ec,t The first t The peak-shaving potential of electrolyzers at all times, P down,ec,t The first t The potential for downward peak shifting of electrolyzers at the moment, P up,ec,t The first t The potential for electrolyzers to peak upward at different times; The S18 specifically includes: The peak-shaving potential of other flexible adjustment resources on the electricity consumption side can be obtained through formula 11: Formula 11: in, P od,t The first t The peak-shaving potential of other flexible adjustment resources on the electricity consumption side at all times, P down,od,t The first t The potential for downward peak regulation by other flexible adjustment resources on the electricity consumption side at the moment, P up,od,t The first t The potential for upward peak regulation by other flexible adjustment resources on the electricity consumption side at the moment; The S19 specifically includes: The overall flexible adjustment potential of the electricity consumption side of the electric-hydrogen synergistic system is calculated by formula 12, formula 13 and formula 14: Formula 12: Formula 13: Formula 14: in, P down,d,t The first t The potential of various electricity-side resources to adjust the peak downward in the electricity-hydrogen synergy system at all times. P down,ec,t The first t The potential for downward peak shifting of electrolyzers at the moment, P down,od,t The first t The potential for downward peak regulation by other flexible adjustment resources on the electricity consumption side at the moment, P up,d,t The first t The potential for upward peak regulation of various electricity-side resources in the electricity-hydrogen coordinated system at all times, P up,ec,t The first t The potential for electrolyzers to peak upward at the moment, P up,od,t The first t The potential for upward peak regulation of other flexible adjustment resources on the electricity consumption side at the moment, P d,t The first t The overall flexible adjustment potential of various electricity-side resources in the electric-hydrogen coordinated system at all times.

3. The method according to claim 2, characterized in that The S21 specifically includes: The minimum technical output of the fuel cell is calculated by formula 15: Formula 15: in, K fc Minimum technical output for fuel cells, is the minimum output coefficient of the fuel cell, C fc is the installed capacity of fuel cells; The potential of fuel cell downward peak regulation is calculated by formula 16: Formula 16: in, P down,fc,t The first t The potential of fuel cells to reduce peak load at the moment, J fc,t The first t Fuel cells are generating electricity at all times. K fc Minimum technical contribution for fuel cells; The S22 specifically includes: The maximum technical output of the fuel cell is calculated using formula 17: Formula 17: in, L fc,t The first t The maximum technical output of fuel cells at all times, β fc,t The first t The capacity ratio of the fuel cell that cannot be used for maintenance at any time. C fc is the installed capacity of fuel cells; The potential for fuel cell peak regulation is calculated using formula 18: Formula 18: in, P up,fc,t The first t The potential of fuel cells to peak at all times, L fc,t The first t The maximum technical output of fuel cells at all times, J fc,t The first t Fuel cell power generation at all times; The S23 specifically includes: The minimum technical output of the hydrogen turbine is calculated by formula 19: Formula 19: Where: K ht The minimum technical output of a hydrogen turbine. is the minimum output coefficient of the hydrogen-fired turbine, C ht The installed capacity of hydrogen-fired turbines; The potential for downward peak load regulation of hydrogen turbines is calculated using formula 20: Formula 20: Where: P down,ht,t The first t The potential of hydrogen turbines to reduce peak load at any time. J ht,t The first t The hydrogen turbine generates electricity at all times. K ht The minimum technical output of a hydrogen-fired turbine; The S24 specifically includes: The maximum technical output of the hydrogen turbine is calculated by formula 21: Formula 21; in, L ht,t The first t The maximum technical output of hydrogen turbines at all times, β ht,t The first t The capacity ratio of the hydrogen turbine that cannot be used for maintenance at any given moment. C ht The installed capacity of hydrogen-fired turbines; The potential for upward peak regulation of hydrogen turbines is calculated using formula 22: Formula 22; in, P up,ht,t The first t The potential of hydrogen-fired turbines to increase peak load at any time. J ht,t The first t The hydrogen turbine generates electricity at all times; The S25 specifically includes: The peak-shaving potential of other flexible regulation resources on the power generation side can be obtained through formula 23: Formula 23: in, P og,t The first t The peak-shaving potential of other flexible adjustment resources on the power generation side at the moment, P down,og,t The first t The potential for downward peak regulation by other flexible regulation resources on the power generation side at the moment, P up,og,t The first t The potential for upward peak regulation by other flexible regulation resources on the power generation side at the moment; The S26 specifically includes: The overall flexible adjustment potential of the power generation side of the electric-hydrogen synergistic system is calculated by formula 24, formula 25 and formula 26: Formula 24; Formula 25; Formula 26: in, P down,g,t The first t The potential of various power generation resources to adjust the peak downward in the electricity-hydrogen synergy system at all times. P down,fc,t The first t The potential of fuel cells to reduce peak load at the moment, P down,ht,t The first t The potential of hydrogen turbines to reduce peak load at any time. P down,og,t The first t The potential for downward peak regulation by other flexible regulation resources on the power generation side at the moment, P up,g,t The first t The potential for upward peak regulation of various power generation resources in the electricity-hydrogen coordinated system at all times. P up,fc,t The first t The potential of fuel cells to peak at all times, P up,ht,t The first t The potential of hydrogen-fired turbines to increase peak load at any time. P up,og,t The first t The potential for upward peak regulation of other flexible regulation resources on the power generation side at the moment, P g,t The first t The overall flexible adjustment potential of various power generation side resources in the electric-hydrogen synergistic system at all times.

4. The method according to claim 1, characterized in that: The S31 specifically includes: The minimum power generation technology output of hydrogen energy storage is calculated by formula 27: Formula 27: in, K hs Contribute to the minimum power generation technology for hydrogen energy storage, is the minimum power generation output coefficient of hydrogen energy storage, C hs Installed power generation capacity for hydrogen storage; The potential of hydrogen energy storage for downward peak shifting is calculated using formula 28: Formula 28: in, P down,hs,t The first t The potential of hydrogen energy storage for downward peak shifting at all times, J hs,t The first t Hydrogen energy storage power generation output at all times, K hs Contribute to the minimum power generation technology for hydrogen energy storage; The S32 specifically includes: The maximum power generation technology output of hydrogen energy storage is calculated by formula 29: Formula 29: in, L hs,t The first t The maximum power generation technology output of hydrogen energy storage at all times, β hs,t The first t The capacity ratio of hydrogen energy storage that cannot generate electricity due to maintenance at any time. C hs Installed power generation capacity for hydrogen storage; The maximum power generation capacity corresponding to the scale of hydrogen stored in the hydrogen storage facility is calculated using formula 30: Formula 30; in, X hs,t The first t The maximum power generation capacity corresponding to the amount of hydrogen stored in the hydrogen storage facility at any given moment, ɳ hs is the hydrogen-to-electricity conversion coefficient of hydrogen energy storage, λ hs is the hydrogen release rate of the hydrogen storage facility, Y hs,t The first t The amount of hydrogen stored in the hydrogen storage facility at any given time; The potential for hydrogen energy storage to increase peak load is calculated using formula 31: Formula 31; in, P up,hs,t The first t The potential of hydrogen energy storage for peak load regulation at all times, L hs,t The first t The maximum power generation technology output of hydrogen energy storage at all times, X hs,t The first t The maximum power generation capacity corresponding to the amount of hydrogen stored in the hydrogen storage facility at any given moment, J hs,t The first t Hydrogen energy storage and power generation output at all times; The S33 specifically includes: The peak-shaving potential of other flexible regulation resources on the energy storage side can be obtained through formula 32: Formula 32; in, P os,t The first t The peak-shaving potential of other flexible adjustment resources on the energy storage side at the moment, P down,os,t The first t The potential for downward peak regulation by other flexible regulation resources on the energy storage side at the moment, P up,os,t The first t The potential for upward peak regulation by other flexible regulation resources on the energy storage side at the moment; The S34 specifically includes: The overall flexible adjustment potential of the energy storage side of the electric-hydrogen synergistic system is calculated by formula 33, formula 34, and formula 35: Formula 33: Formula 34: Formula 35: Where: P down,s,t The first t The potential of various energy storage resources in the electricity-hydrogen coordinated system to adjust the peak downward at any time. P down,hs,t The first t The potential of hydrogen energy storage for downward peak shifting at all times, P down,os,t The first t The potential for downward peak regulation by other flexible regulation resources on the energy storage side at the moment, P up,s,t The first t The potential of various energy storage resources in the electricity-hydrogen coordinated system to adjust the peak at any time. P up,hs,t The first t The potential of hydrogen energy storage for peak load regulation at all times, P up,os,t The first t The potential for upward peak regulation by other flexible regulation resources on the energy storage side at the moment, P s,t The first t The overall flexible adjustment potential of various energy storage resources in the electric-hydrogen coordinated system at all times.

5. The method according to claim 1, characterized in that The S4 specifically includes: The overall flexible adjustment potential of the electric-hydrogen synergistic system is obtained through formula 36, ​​formula 37 and formula 38: Formula 36: Formula 37: Formula 38: in, P down,t The first t The overall potential of the electric-hydrogen synergistic system to reduce peak load at all times. P up,d,t The first t The potential for upward peak regulation of various electricity-side resources in the electricity-hydrogen coordinated system at all times, P down,g,t The first t The potential of various power generation resources to adjust the peak downward in the electricity-hydrogen synergy system at all times. P down,s,t The first t The potential of various energy storage resources in the electricity-hydrogen coordinated system to adjust the peak downward at any time. P up,t The first t The overall upward peak-shaving potential of the electric-hydrogen synergistic system at all times, P down,d,t The first t The potential of various electricity-side resources to adjust the peak downward in the electricity-hydrogen synergy system at all times. P up,g,t The first t The potential for upward peak regulation of various power generation resources in the electricity-hydrogen coordinated system at all times. P up,s,t The first t The potential of various energy storage resources in the electricity-hydrogen coordinated system to adjust the peak at any time. P t The first t The overall flexible adjustment potential of the electric-hydrogen synergistic system at all times.

6. An electronic device comprising: processor; as well as, A memory arranged to store computer executable instructions, wherein when the computer executable instructions are executed, the processor performs the steps of the method for evaluating the flexible adjustment potential of the electric-hydrogen cooperative system as claimed in any one of claims 1 to 5.

7. A storage medium for storing computer executable instructions, which, when executed, implement the steps of the method for evaluating the flexible adjustment potential of an electric-hydrogen synergistic system as described in any one of claims 1 to 5.

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