Method and device for determining energy storage ratio of new energy hydrogen production system and electronic equipment

Abstract

The present disclosure provides a method and device for determining the energy storage ratio of a new energy hydrogen production system, and an electronic device, relating to the technical field of new energy hydrogen production. The method includes obtaining the annual hourly power generation of a new energy generator set and the annual hourly electricity consumption of a hydrogen production unit, determining the first electricity consumption gap or power generation surplus corresponding to each hour, and then determining the minimum energy storage power of the energy storage unit. Then, according to the first electricity consumption gap or power generation surplus corresponding to each hour and the energy storage conversion efficiency, the charging and discharging sequence, the corresponding second electricity consumption gap and energy storage discharge capacity, and the energy storage capacity corresponding to each charging and discharging sequence are determined. According to the maximum value in each energy storage capacity and the minimum energy storage power, the minimum energy storage capacity hour of the energy storage unit is determined. Thus, the minimum energy storage efficiency and the minimum energy storage capacity hour of the energy storage unit can be accurately determined, so that the new energy hydrogen production system can be stably operated in an off-grid state, and the hydrogen production efficiency is improved.

Description

Technical Field

[0001] This disclosure relates to the field of new energy hydrogen production technology, and in particular to a method, apparatus and electronic equipment for determining the energy storage ratio of a new energy hydrogen production system. Background Technology

[0002] Off-grid hydrogen production systems require stable power from renewable energy generators and energy storage units to supply hydrogen production. However, renewable energy power generation and hydrogen production are constrained by external factors such as land area and local production capacity. Therefore, configuring appropriate energy storage power and capacity to ensure the stable operation of the renewable energy hydrogen production system is a pressing issue that needs to be addressed. Summary of the Invention

[0003] This disclosure aims to at least partially address one of the technical problems in the related art.

[0004] The first aspect of this disclosure proposes a method for determining the energy storage ratio in a new energy hydrogen production system. The new energy hydrogen production system includes a new energy generator set, an energy storage unit, and a hydrogen production unit. The method includes:

[0005] Obtain the annual hourly power generation of the new energy generator set and the annual hourly power consumption of the hydrogen production unit;

[0006] Based on the annual hourly power generation and the annual hourly power consumption, determine the first power consumption gap or power generation surplus corresponding to each hour;

[0007] The minimum energy storage power corresponding to the energy storage unit is determined based on the maximum value and energy storage conversion efficiency of each of the first power consumption gaps.

[0008] Based on the first power consumption gap or the power generation surplus corresponding to each hour, and the energy storage conversion efficiency, determine each charging and discharging sequence, and the second power consumption gap and energy storage discharge amount corresponding to each charging and discharging sequence;

[0009] The energy storage capacity corresponding to each charging and discharging sequence is determined based on the second power consumption gap, the energy storage discharge amount, and the energy storage conversion efficiency corresponding to each charging and discharging sequence.

[0010] The minimum energy storage capacity hour of the energy storage unit is determined based on the maximum value of each of the energy storage capacities and the minimum energy storage power.

[0011] Optionally, determining the energy storage capacity corresponding to each charge / discharge sequence based on the second power consumption gap, the energy storage discharge amount, and the energy storage conversion efficiency for each charge / discharge sequence includes:

[0012] In response to the fact that the second power consumption gap corresponding to the nth charging and discharging sequence is greater than the corresponding energy storage discharge amount, the second power consumption gap corresponding to the nth charging and discharging sequence is added to the second power consumption gap corresponding to the previous i charging and discharging sequences, and the energy storage discharge amount corresponding to the nth charging and discharging sequence is added to the energy storage discharge amount corresponding to the previous i charging and discharging sequences, until the second power consumption gap after addition is less than or equal to the energy storage discharge amount after addition;

[0013] The energy storage capacity corresponding to the nth charge-discharge sequence is determined as the ratio of the summed second power consumption gap to the energy storage conversion efficiency;

[0014] Where n is a positive integer and i is a positive integer less than n.

[0015] Optionally, determining the energy storage capacity corresponding to each charge / discharge sequence based on the second power consumption gap, the energy storage discharge amount, and the energy storage conversion efficiency for each charge / discharge sequence includes:

[0016] In response to the second power consumption gap corresponding to the nth charge / discharge sequence being less than or equal to the corresponding energy storage discharge amount, the energy storage capacity corresponding to the nth charge / discharge sequence is determined as the ratio of the second power consumption gap to the energy storage conversion efficiency.

[0017] Optionally, determining each charging / discharging sequence, and the second power consumption gap and energy storage discharge amount corresponding to each charging / discharging sequence, based on the first power consumption gap or the power generation surplus per hour and the energy storage conversion efficiency, includes:

[0018] In response to the power generation surplus corresponding to the [a,b]th hour and the first power consumption deficit corresponding to the [b+1,c]th hour, the [a,c]th hour is determined as a charging and discharging sequence;

[0019] The sum of the first power consumption gaps in each of the charging and discharging sequences is determined as the second power consumption gap corresponding to each of the charging and discharging sequences;

[0020] The sum of the power generation surplus in each of the charging and discharging sequences is multiplied by the energy storage conversion efficiency to determine the energy storage discharge amount corresponding to each of the charging and discharging sequences.

[0021] Where a is a positive integer, b is a positive integer greater than a, and c is a positive integer greater than b.

[0022] Optionally, obtaining the annual hourly power generation of the new energy generator unit and the annual hourly power consumption of the hydrogen production unit includes:

[0023] Obtain the first attribute information and environmental parameters corresponding to the new energy generator set;

[0024] The annual hourly power generation is determined based on the attribute information and the environmental parameters;

[0025] Obtain the second attribute information and target total hydrogen production of the hydrogen production unit;

[0026] The annual electricity consumption for hydrogen production will be determined based on the target total hydrogen production.

[0027] The annual hourly electricity consumption for hydrogen production is determined based on the annual hydrogen production electricity consumption, the second attribute information, and the annual hourly electricity generation.

[0028] Optionally, determining the minimum energy storage power corresponding to the energy storage unit based on the maximum value and energy storage conversion efficiency of each of the first power consumption gaps includes:

[0029] The minimum energy storage power is determined by the ratio of the maximum value of each of the first power consumption gap values ​​to the energy storage conversion efficiency.

[0030] The second aspect of this disclosure provides a device for determining the energy storage ratio in a new energy hydrogen production system. The new energy hydrogen production system includes a new energy generator set, an energy storage unit, and a hydrogen production unit. The device includes:

[0031] The first acquisition module is used to acquire the annual hourly power generation of the new energy generator set and the annual hourly power consumption of the hydrogen production unit.

[0032] The first determining module is used to determine the first electricity consumption gap or electricity generation surplus corresponding to each hour based on the annual hourly power generation and the annual hourly electricity consumption.

[0033] The second determining module is used to determine the minimum energy storage power corresponding to the energy storage unit based on the maximum value of each of the first power consumption gaps and the energy storage conversion efficiency.

[0034] The third determining module is used to determine each charging and discharging sequence, and the second power consumption gap and energy storage discharge amount corresponding to each charging and discharging sequence, based on the first power consumption gap or the power generation surplus corresponding to each hour and the energy storage conversion efficiency.

[0035] The fourth determining module is used to determine the energy storage capacity corresponding to each charging and discharging sequence based on the second power consumption gap, the energy storage discharge amount, and the energy storage conversion efficiency corresponding to each charging and discharging sequence.

[0036] The fifth determining module is used to determine the minimum energy storage capacity hours of the energy storage unit based on the maximum value of each of the energy storage capacities and the minimum energy storage power.

[0037] Optionally, the fourth determining module is specifically used for:

[0038] In response to the fact that the second power consumption gap corresponding to the nth charging and discharging sequence is greater than the corresponding energy storage discharge amount, the second power consumption gap corresponding to the nth charging and discharging sequence is added to the second power consumption gap corresponding to the previous i charging and discharging sequences, and the energy storage discharge amount corresponding to the nth charging and discharging sequence is added to the energy storage discharge amount corresponding to the previous i charging and discharging sequences, until the second power consumption gap after addition is less than or equal to the energy storage discharge amount after addition;

[0039] The energy storage capacity corresponding to the nth charge-discharge sequence is determined as the ratio of the summed second power consumption gap to the energy storage conversion efficiency;

[0040] Where n is a positive integer and i is a positive integer less than n.

[0041] Optionally, the fourth determining module is specifically used for:

[0042] In response to the second power consumption gap corresponding to the nth charge / discharge sequence being less than or equal to the corresponding energy storage discharge amount, the energy storage capacity corresponding to the nth charge / discharge sequence is determined as the ratio of the second power consumption gap to the energy storage conversion efficiency.

[0043] Optionally, the third determining module is specifically used for:

[0044] In response to the power generation surplus corresponding to the [a,b]th hour and the first power consumption deficit corresponding to the [b+1,c]th hour, the [a,c]th hour is determined as a charging and discharging sequence;

[0045] The sum of the first power consumption gaps in each of the charging and discharging sequences is determined as the second power consumption gap corresponding to each of the charging and discharging sequences;

[0046] The sum of the power generation surplus in each of the charging and discharging sequences is multiplied by the energy storage conversion efficiency to determine the energy storage discharge amount corresponding to each of the charging and discharging sequences.

[0047] Where a is a positive integer, b is a positive integer greater than a, and c is a positive integer greater than b.

[0048] Optionally, the first acquisition module is specifically used for:

[0049] Obtain the first attribute information and environmental parameters corresponding to the new energy generator set;

[0050] The annual hourly power generation is determined based on the attribute information and the environmental parameters;

[0051] Obtain the second attribute information and target total hydrogen production of the hydrogen production unit;

[0052] The annual electricity consumption for hydrogen production will be determined based on the target total hydrogen production.

[0053] The annual hourly electricity consumption for hydrogen production is determined based on the annual hydrogen production electricity consumption, the second attribute information, and the annual hourly electricity generation.

[0054] Optionally, the second determining module is specifically used for:

[0055] The minimum energy storage power is determined by the ratio of the maximum value of each of the first power consumption gap values ​​to the energy storage conversion efficiency.

[0056] A third aspect of this disclosure provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the method for determining the energy storage ratio of a new energy hydrogen production system as proposed in the first aspect of this disclosure.

[0057] The fourth aspect of this disclosure provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method for determining the energy storage ratio of a new energy hydrogen production system as proposed in the first aspect of this disclosure.

[0058] The fifth aspect of this disclosure provides a computer program product, including a computer program that, when executed by a processor, implements the method for determining the energy storage ratio of a new energy hydrogen production system as proposed in the first aspect of this disclosure.

[0059] The method, apparatus, and electronic equipment for determining the energy storage ratio of the new energy hydrogen production system disclosed herein have the following beneficial effects:

[0060] In this embodiment, the hourly annual power generation of the new energy generator set and the hourly annual power consumption of the hydrogen production unit are first obtained. Then, based on the hourly annual power generation and consumption, a first power consumption gap or power generation surplus is determined for each hour. Based on the maximum value of each first power consumption gap and the energy storage conversion efficiency, the minimum energy storage power corresponding to the energy storage unit is determined. Next, based on the hourly first power consumption gap or power generation surplus and the energy storage conversion efficiency, each charge / discharge sequence is determined, along with a second power consumption gap and energy storage discharge amount corresponding to each sequence. This determines the energy storage capacity for each charge / discharge sequence. Finally, based on the maximum value and minimum energy storage power of each energy storage capacity, the minimum energy storage capacity hour of the energy storage unit is determined. Therefore, the minimum energy storage efficiency and minimum energy storage capacity hour of the energy storage unit can be accurately determined. This allows the energy storage unit to operate in a mode with a higher energy storage efficiency and a higher energy storage capacity hour when the new energy hydrogen production system is off-grid, ensuring stable operation of the new energy hydrogen production system and improving hydrogen production efficiency.

[0061] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0062] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0063] Figure 1 This is a flowchart illustrating a method for determining the energy storage ratio of a new energy hydrogen production system according to an embodiment of this disclosure.

[0064] Figure 2 A flowchart illustrating a method for determining the energy storage ratio of a new energy hydrogen production system according to another embodiment of this disclosure;

[0065] Figure 3 This is a schematic diagram of the energy storage ratio determination device for a new energy hydrogen production system provided in an embodiment of the present disclosure.

[0066] Figure 4 A block diagram of an exemplary electronic device suitable for implementing embodiments of the present disclosure is shown. Detailed Implementation

[0067] Embodiments of this disclosure are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0068] The following description, with reference to the accompanying drawings, outlines a method, apparatus, electronic device, and storage medium for determining the energy storage ratio of a new energy hydrogen production system according to embodiments of this disclosure.

[0069] Figure 1 This is a flowchart illustrating the method for determining the energy storage ratio of a new energy hydrogen production system provided in this embodiment.

[0070] This embodiment illustrates the use of the energy storage ratio determination method of the new energy hydrogen production system configured in the energy storage ratio determination device of the new energy hydrogen production system. The energy storage ratio determination device of the new energy hydrogen production system can be applied to any electronic device so that the electronic device can perform the energy storage ratio determination function of the new energy hydrogen production system.

[0071] Among them, electronic devices can be personal computers (PCs), cloud devices, mobile devices, etc. Mobile devices can be hardware devices with various operating systems, touch screens and / or displays, such as mobile phones, tablets, personal digital assistants, wearable devices, and in-vehicle devices.

[0072] like Figure 1 As shown, the method for determining the energy storage ratio of this new energy hydrogen production system may include the following steps:

[0073] Step 101: Obtain the annual hourly power generation of the new energy generator set and the annual hourly power consumption of the hydrogen production unit.

[0074] The new energy generator sets may include wind turbine generator sets, photovoltaic generator sets, etc. This disclosure does not limit them.

[0075] Among them, the annual hourly power generation corresponding to the new energy generator set can be the amount of electricity that can be generated every hour within a year.

[0076] Among them, the annual hourly electricity consumption of the hydrogen production unit can be the electricity required for hydrogen production every hour within a year.

[0077] Optionally, the first attribute information and environmental parameters corresponding to the new energy generator set can be obtained first, and then the hourly power generation throughout the year can be determined based on the attribute information and environmental parameters.

[0078] The first attribute information may include the scale and location information of the new energy generator unit. Environmental data may include meteorological data for the location of the new energy generator unit for the next year. This disclosure does not limit this information.

[0079] Specifically, software such as PVsyst can be used to simulate the hourly power generation of new energy generator sets throughout the year.

[0080] Optionally, the second attribute information and target total hydrogen production of the hydrogen production unit can be obtained first. Then, based on the target total hydrogen production, the annual electricity consumption for hydrogen production can be determined. Based on the annual electricity consumption for hydrogen production, the second attribute information, and the annual hourly power generation, the annual hourly electricity consumption can be determined.

[0081] The second attribute information of the hydrogen production unit may include rated load, load fluctuation range, etc. The load fluctuation range can be [60%-110%].

[0082] The target total hydrogen production can be the expected hydrogen production volume of the hydrogen production units within the next year.

[0083] Optionally, the annual hourly power generation of the new energy generator set can be simulated based on the power generation of the new energy generator set in previous years and the meteorological data of previous years.

[0084] Step 102: Based on the annual hourly power generation and annual hourly power consumption, determine the first power consumption gap or power generation surplus for each hour.

[0085] Specifically, based on the time series, the power generation and power consumption at the same moment are obtained. If the power generation in any hour is greater than the power consumption, the difference between the power generation and power consumption in any hour is determined as the power generation surplus. If the power generation in any hour is less than the power consumption, the difference between the power consumption and power generation in any hour is determined as the first power consumption gap surplus in any hour.

[0086] Step 103: Determine the minimum energy storage power corresponding to the energy storage unit based on the maximum value and energy storage conversion efficiency in each first power consumption gap.

[0087] The minimum energy storage capacity can be the rated power of the energy storage converter in the energy storage unit, usually in megawatts (MW).

[0088] Among them, energy storage conversion efficiency refers to the efficiency with which an energy storage unit converts stored electrical energy into the electrical energy required by a hydrogen production unit.

[0089] Specifically, the minimum energy storage power is determined by the ratio of the maximum value of each first power consumption gap to the energy storage conversion efficiency.

[0090] Step 104: Based on the first power consumption gap or power generation surplus corresponding to each hour and the energy storage conversion efficiency, determine each charging and discharging sequence, and the second power consumption gap and energy storage discharge amount corresponding to each charging and discharging sequence.

[0091] In this embodiment of the disclosure, the power shortage constraint formula is as follows:

[0092] E u_else (t)=[Eu (t)-E o (t)]

[0093] E u_else (T)≤μE c (T-1)

[0094] ∫E u_else (t)0 tx =E u_else (T)

[0095] The power generation surplus constraint formula is:

[0096] E c (t)≤[E o (t)-E u (t)]

[0097] ∫E c (t)0 tx =E c (T)

[0098] Among them, E u It is the electricity consumption for hydrogen production, E o It is the amount of electricity generated from new energy sources, E u_else It is the electricity demand gap, μ is the energy storage conversion efficiency, and E is the energy storage conversion efficiency. c It is the energy storage charging capacity, μE c It represents the energy storage and discharge capacity, T represents the charging and discharging sequence, t represents the hour interval, and tx represents the hour time within the charging and discharging sequence.

[0099] One charge-discharge sequence includes one charge and one discharge of the energy storage unit.

[0100] Among them, the energy storage discharge capacity can be the amount of electricity that the energy storage unit can release during a single charge-discharge sequence.

[0101] Optionally, in response to the power generation surplus corresponding to the [a,b]th hour and the first power consumption gap corresponding to the [b+1,c]th hour, the [a,c]th hour is determined as a charging and discharging sequence. Then, the sum of the first power consumption gaps in each charging and discharging sequence is determined as the second power consumption gap corresponding to each charging and discharging sequence. The product of the sum of the power generation surpluses in each charging and discharging sequence and the energy storage conversion efficiency is determined as the energy storage discharge amount corresponding to each charging and discharging sequence.

[0102] Where a is a positive integer, b is a positive integer greater than a, and c is a positive integer greater than b.

[0103] For example, if the value of a is 1, the value of b is 5, and the value of c is 10, then the first to the fifth hours represent a power generation surplus, with corresponding power generation surpluses of p1, p2, p3, p4, and p5, respectively; the sixth to the tenth hours represent a power consumption deficit, with corresponding first power consumption deficits of q6, q7, q8, q9, and q10, respectively; then the first to the tenth hours constitute a charge-discharge sequence, with corresponding second power consumption deficits of q6+q7+q8+q9+q10, and the energy storage discharge amount is (p1+p2+p3+p4+p5)*energy storage conversion efficiency.

[0104] Step 105: Determine the energy storage capacity corresponding to each charging and discharging sequence based on the second power consumption gap, energy storage discharge amount, and energy storage conversion efficiency corresponding to each charging and discharging sequence.

[0105] Optionally, if the second power consumption gap is greater than the energy storage discharge capacity, the energy storage capacity is determined as the ratio of the second power consumption gap to the energy storage conversion efficiency.

[0106] Alternatively, if the second power consumption gap is less than or equal to the energy storage discharge, the energy storage capacity is determined as the ratio of the energy storage discharge to the energy storage conversion efficiency.

[0107] Step 106: Determine the minimum energy storage capacity hours of the energy storage unit based on the maximum and minimum energy storage power of each energy storage capacity.

[0108] Specifically, the minimum energy storage capacity is the ratio of the maximum energy storage capacity to the minimum energy storage power.

[0109] In this embodiment, the hourly annual power generation of the new energy generator set and the hourly annual power consumption of the hydrogen production unit are first obtained. Then, based on the hourly annual power generation and consumption, a first power consumption gap or power generation surplus is determined for each hour. Based on the maximum value of each first power consumption gap and the energy storage conversion efficiency, the minimum energy storage power corresponding to the energy storage unit is determined. Next, based on the hourly first power consumption gap or power generation surplus and the energy storage conversion efficiency, each charge / discharge sequence is determined, along with a second power consumption gap and energy storage discharge amount corresponding to each sequence. This determines the energy storage capacity for each charge / discharge sequence. Finally, based on the maximum value and minimum energy storage power of each energy storage capacity, the minimum energy storage capacity hour of the energy storage unit is determined. Therefore, the minimum energy storage efficiency and minimum energy storage capacity hour of the energy storage unit can be accurately determined. This allows the energy storage unit to operate in a mode with a higher energy storage efficiency and a higher energy storage capacity hour when the new energy hydrogen production system is off-grid, ensuring stable operation of the new energy hydrogen production system and improving hydrogen production efficiency.

[0110] Figure 2This is a flowchart illustrating a method for determining the energy storage ratio of a new energy hydrogen production system according to an embodiment of this disclosure, as shown below. Figure 2 As shown, the method for determining the energy storage ratio of this new energy hydrogen production system may include the following steps:

[0111] Step 201: Obtain the annual hourly power generation of the new energy generator set and the annual hourly power consumption of the hydrogen production unit.

[0112] Step 202: Based on the annual hourly power generation and annual hourly power consumption, determine the first power consumption gap or power generation surplus corresponding to each hour.

[0113] Step 203: Determine the minimum energy storage power corresponding to the energy storage unit based on the maximum value and energy storage conversion efficiency in each first power consumption gap.

[0114] The specific implementation of steps 201 to 203 can be found in the detailed steps of other embodiments in this disclosure, and will not be described in detail here.

[0115] Step 204: Based on the first power consumption gap or power generation surplus corresponding to each hour and the energy storage conversion efficiency, determine each charging and discharging sequence, and the second power consumption gap and energy storage discharge amount corresponding to each charging and discharging sequence.

[0116] The specific implementation of steps 201 to 204 can be found in the detailed steps of other embodiments in this disclosure, and will not be described in detail here.

[0117] Step 205: In response to the second power consumption gap corresponding to the nth charging and discharging sequence being greater than the corresponding energy storage discharge amount, the second power consumption gap corresponding to the nth charging and discharging sequence is added to the second power consumption gap corresponding to the first i charging and discharging sequences of the nth charging and discharging sequence, and the energy storage discharge amount corresponding to the nth charging and discharging sequence is added to the energy storage discharge amount corresponding to the first i charging and discharging sequences, until the second power consumption gap after addition is less than or equal to the energy storage discharge amount after addition.

[0118] Where n is a positive integer and i is a positive integer less than n.

[0119] For example, if the value of n is 5, and the second power consumption gap corresponding to the 5th charge / discharge sequence is greater than the corresponding energy storage discharge amount, add the second power consumption gap corresponding to the 5th charge / discharge sequence to the second power consumption gap corresponding to the 4th charge / discharge sequence, and add the energy storage discharge amount corresponding to the 5th charge / discharge sequence to the energy storage discharge amount corresponding to the 4th charge / discharge sequence. Determine whether the second power consumption gap after addition is less than or equal to the energy storage discharge amount after addition. If the second power consumption gap after addition is still greater than the energy storage discharge amount after addition, add the second power consumption gaps corresponding to the 3rd, 4th, and 5th charge / discharge sequences respectively, and add the corresponding energy storage discharge amounts respectively. Repeat this process until the second power consumption gap after addition is less than or equal to the energy storage discharge amount after addition.

[0120] Step 206: Determine the energy storage capacity corresponding to the nth charging and discharging sequence as the ratio of the second power consumption gap after addition to the energy storage conversion efficiency.

[0121] Step 207: In response to the second power consumption gap corresponding to the nth charge / discharge sequence being less than or equal to the corresponding energy storage discharge amount, the energy storage capacity corresponding to the nth charge / discharge sequence is determined as the ratio of the second power consumption gap to the energy storage conversion efficiency.

[0122] Step 208: Determine the minimum energy storage capacity hours of the energy storage unit based on the maximum and minimum energy storage power of each energy storage capacity.

[0123] The specific implementation of step 208 can be found in the detailed descriptions of other embodiments in this disclosure, and will not be repeated here.

[0124] In this embodiment, firstly, based on the maximum value of each first power consumption gap and the energy storage conversion efficiency, the minimum energy storage power corresponding to the energy storage unit is determined. Then, based on the hourly first power consumption gap or power generation surplus and the energy storage conversion efficiency, each charging / discharging sequence is determined, along with the second power consumption gap and energy storage discharge amount corresponding to each charging / discharging sequence. If the second power consumption gap corresponding to the nth charging / discharging sequence is greater than the corresponding energy storage discharge amount, the second power consumption gap corresponding to the nth charging / discharging sequence is added to the second power consumption gaps corresponding to the first i charging / discharging sequences of the nth charging / discharging sequence. The energy storage discharge capacity corresponding to the nth charge / discharge sequence is added to the energy storage discharge capacity corresponding to the previous i charge / discharge sequences until the second energy consumption gap after the addition is less than or equal to the added energy storage discharge capacity. Then, the energy storage capacity corresponding to the nth charge / discharge sequence is determined as the ratio of the second energy consumption gap after the addition to the energy storage conversion efficiency. When the second energy consumption gap corresponding to the nth charge / discharge sequence is less than or equal to the corresponding energy storage discharge capacity, the energy storage capacity corresponding to the nth charge / discharge sequence is determined as the ratio of the second energy consumption gap to the energy storage conversion efficiency. Finally, based on the maximum and minimum energy storage power of each energy storage capacity, the minimum energy storage capacity hour of the energy storage unit is determined. This allows for a more accurate determination of the minimum energy storage capacity hour, thus ensuring the stable operation of the new energy hydrogen production system even in off-grid conditions.

[0125] To achieve the above embodiments, this disclosure also proposes a device for determining the energy storage ratio of a new energy hydrogen production system.

[0126] Figure 3 This is a schematic diagram of the energy storage ratio determination device for a new energy hydrogen production system provided in an embodiment of this disclosure.

[0127] like Figure 3 As shown, the energy storage ratio determination device 300 of the new energy hydrogen production system may include: a first acquisition module 310, a first determination module 320, a second determination module 330, a third determination module 340, a fourth determination module 350 and a fifth determination module 360.

[0128] The first acquisition module 310 is used to acquire the annual hourly power generation of the new energy generator set and the annual hourly power consumption of the hydrogen production unit.

[0129] The first determining module 320 is used to determine the first electricity consumption gap or electricity generation surplus corresponding to each hour based on the annual hourly power generation and annual hourly electricity consumption.

[0130] The second determining module 330 is used to determine the minimum energy storage power corresponding to the energy storage unit based on the maximum value and energy storage conversion efficiency in each first power consumption gap;

[0131] The third determining module 340 is used to determine each charging and discharging sequence, and the second charging and discharging sequence and the energy storage discharge amount corresponding to each charging and discharging sequence, based on the first power consumption gap or power generation surplus corresponding to each hour and the energy storage conversion efficiency.

[0132] The fourth determining module 350 is used to determine the energy storage capacity corresponding to each charging and discharging sequence based on the second power consumption gap, energy storage discharge amount and energy storage conversion efficiency corresponding to each charging and discharging sequence.

[0133] The fifth determining module 360 ​​is used to determine the minimum energy storage capacity hour of the energy storage unit based on the maximum and minimum energy storage power in each energy storage capacity.

[0134] Optionally, the fourth determining module 350 is specifically used for:

[0135] In response to the fact that the second power consumption gap corresponding to the nth charging and discharging sequence is greater than the corresponding energy storage discharge amount, the second power consumption gap corresponding to the nth charging and discharging sequence is added to the second power consumption gap corresponding to the first i charging and discharging sequences of the nth charging and discharging sequence, and the energy storage discharge amount corresponding to the nth charging and discharging sequence is added to the energy storage discharge amount corresponding to the first i charging and discharging sequences, until the second power consumption gap after the addition is less than or equal to the energy storage discharge amount after the addition;

[0136] The energy storage capacity corresponding to the nth charge / discharge sequence is determined as the ratio of the second power consumption gap after addition to the energy storage conversion efficiency;

[0137] Where n is a positive integer and i is a positive integer less than n.

[0138] Optionally, the fourth determining module 350 is specifically used for:

[0139] In response to the second power consumption gap corresponding to the nth charge / discharge sequence being less than or equal to the corresponding energy storage discharge amount, the energy storage capacity corresponding to the nth charge / discharge sequence is determined as the ratio of the second power consumption gap to the energy storage conversion efficiency.

[0140] Optionally, the third determining module 340 is specifically used for:

[0141] In response to the power generation surplus corresponding to the [a,b]th hour and the first power consumption deficit corresponding to the [b+1,c]th hour, the [a,c]th hour is determined as a charging and discharging sequence;

[0142] The sum of the first power consumption gaps in each charge-discharge sequence is used to determine the second power consumption gap corresponding to each charge-discharge sequence.

[0143] The sum of the power generation surplus in each charge-discharge sequence and the product of the energy storage conversion efficiency are used to determine the energy storage discharge amount corresponding to each charge-discharge sequence.

[0144] Where a is a positive integer, b is a positive integer greater than a, and c is a positive integer greater than b.

[0145] Optionally, the first acquisition module 310 is specifically used for:

[0146] Obtain the primary attribute information and environmental parameters corresponding to the new energy generator set;

[0147] The hourly power generation for the whole year is determined based on attribute information and environmental parameters;

[0148] Obtain the second attribute information and target total hydrogen production of the hydrogen production unit;

[0149] The annual electricity consumption for hydrogen production will be determined based on the target total hydrogen production volume.

[0150] The annual hourly electricity consumption for hydrogen production is determined based on the annual hydrogen production electricity consumption, the second attribute information, and the annual hourly electricity generation.

[0151] Optionally, the second determining module 330 is specifically used for:

[0152] The minimum energy storage power is determined by the ratio of the maximum value of each first power consumption gap to the energy storage conversion efficiency.

[0153] The functions and specific implementation principles of the modules described in this embodiment can be found in the above method embodiments, and will not be repeated here.

[0154] The energy storage ratio determination device for a new energy hydrogen production system according to this embodiment first obtains the annual hourly power generation of the new energy generator set and the annual hourly power consumption of the hydrogen production unit. Then, based on the annual hourly power generation and consumption, it determines the first power consumption gap or power generation surplus for each hour. Based on the maximum value of each first power consumption gap and the energy storage conversion efficiency, it determines the minimum energy storage power corresponding to the energy storage unit. Next, based on the hourly first power consumption gap or power generation surplus and the energy storage conversion efficiency, it determines each charge / discharge sequence, and the second power consumption gap and energy storage discharge amount corresponding to each charge / discharge sequence, thereby determining the energy storage capacity corresponding to each charge / discharge sequence. Finally, based on the maximum value and minimum energy storage power of each energy storage capacity, it determines the minimum energy storage capacity hour of the energy storage unit. Therefore, the minimum energy storage efficiency and minimum energy storage capacity hour of the energy storage unit can be accurately determined. This allows the new energy hydrogen production system to operate in an off-grid state with the energy storage unit operating at a mode greater than the minimum energy storage efficiency and the minimum energy storage capacity hour, thus ensuring stable operation of the new energy hydrogen production system and improving hydrogen production efficiency.

[0155] To implement the above embodiments, this disclosure also proposes an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the method for determining the energy storage ratio of a new energy hydrogen production system as proposed in the foregoing embodiments of this disclosure.

[0156] To implement the above embodiments, this disclosure also proposes a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method for determining the energy storage ratio of a new energy hydrogen production system as proposed in the foregoing embodiments of this disclosure.

[0157] To implement the above embodiments, this disclosure also proposes a computer program product, including a computer program that, when executed by a processor, implements the method for determining the energy storage ratio of a new energy hydrogen production system as proposed in the foregoing embodiments of this disclosure.

[0158] Figure 4 A block diagram of an exemplary electronic device suitable for implementing embodiments of the present disclosure is shown. Figure 4 The electronic device 12 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments disclosed herein.

[0159] like Figure 4 As shown, the electronic device 12 is represented in the form of a general-purpose computing device. The components of the computer device 12 may include, but are not limited to: one or more processors or processing units 16, system memory 28, and a bus 18 connecting different system components (including system memory 28 and processing unit 16).

[0160] Bus 18 represents one or more of several bus architectures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of the various bus architectures. For example, these architectures include, but are not limited to, the Industry Standard Architecture (ISA) bus, the Micro Channel Architecture (MAC) bus, the Enhanced ISA bus, the Video Electronics Standards Association (VESA) local bus, and the Peripheral Component Interconnect (PCI) bus.

[0161] Computer device 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by computer device 12, including volatile and non-volatile media, removable and non-removable media.

[0162] Memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM) 30 and / or cache memory 32. Computer device 12 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, storage system 34 may be used to read and write non-removable, non-volatile magnetic media (…). Figure 4 Not shown; usually referred to as a "hard drive"). Although Figure 4 Not shown, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk") and an optical disc drive for reading and writing to a removable non-volatile optical disc (e.g., a compact optical disc read-only memory (CD-ROM), a digital video disc read-only memory (DVD-ROM), or other optical media) may be provided. In these cases, each drive may be connected to bus 18 via one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of this disclosure.

[0163] A program / utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28. Such program modules 42 include, but are not limited to, an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment. Program modules 42 typically perform the functions and / or methods described in the embodiments of this disclosure.

[0164] Computer device 12 can also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), and with one or more devices that enable a user to interact with computer device 12, and / or with any device that enables computer device 12 to communicate with one or more other computing devices (e.g., network card, modem, etc.). This communication can be performed via input / output (I / O) interface 22. Furthermore, computer device 12 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 20. As shown, network adapter 20 communicates with other modules of computer device 12 via bus 18. It should be understood that, although not shown in the figures, other hardware and / or software modules can be used in conjunction with computer device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0165] The processing unit 16 executes various functional applications and data processing by running programs stored in the system memory 28, such as implementing the methods mentioned in the foregoing embodiments.

[0166] The technical solution disclosed herein first obtains the annual hourly power generation of the new energy generator unit and the annual hourly power consumption of the hydrogen production unit. Then, based on the annual hourly power generation and consumption, it determines the first power consumption gap or power generation surplus for each hour. Based on the maximum value of each first power consumption gap and the energy storage conversion efficiency, it determines the minimum energy storage power corresponding to the energy storage unit. Next, based on the hourly first power consumption gap or power generation surplus and the energy storage conversion efficiency, it determines each charging / discharging sequence, and the second power consumption gap and energy storage discharge amount corresponding to each charging / discharging sequence, thereby determining the energy storage capacity corresponding to each charging / discharging sequence. Finally, based on the maximum value and minimum energy storage power of each energy storage capacity, it determines the minimum energy storage capacity hour of the energy storage unit. Therefore, the minimum energy storage efficiency and minimum energy storage capacity hour of the energy storage unit can be accurately determined. This allows the new energy hydrogen production system to operate in an off-grid state with the energy storage unit operating at a mode greater than the minimum energy storage efficiency and the minimum energy storage capacity hour, thus ensuring not only the stable operation of the new energy hydrogen production system but also improving hydrogen production efficiency.

[0167] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0168] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0169] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0170] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0171] It should be understood that various parts of this disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0172] Those skilled in the art will understand that all or part of the steps of the methods described in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it includes one or a combination of the steps of the method embodiments.

[0173] Furthermore, the functional units in the various embodiments of this disclosure can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0174] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A method for determining the energy storage ratio in a new energy hydrogen production system, characterized in that, The new energy hydrogen production system includes a new energy generator set, an energy storage unit, and a hydrogen production unit; the method includes: Obtain the annual hourly power generation of the new energy generator set and the annual hourly power consumption of the hydrogen production unit; Based on the annual hourly power generation and the annual hourly power consumption, determine the first power consumption gap or power generation surplus corresponding to each hour; The minimum energy storage power corresponding to the energy storage unit is determined based on the maximum value and energy storage conversion efficiency of each of the first power consumption gaps. Based on the first power consumption gap or the power generation surplus corresponding to each hour, and the energy storage conversion efficiency, determine each charging and discharging sequence, and the second power consumption gap and energy storage discharge amount corresponding to each charging and discharging sequence; Based on the second power consumption gap corresponding to each charge / discharge sequence, the energy storage discharge amount, and the energy storage conversion efficiency, the energy storage capacity corresponding to each charge / discharge sequence is determined, including: In response to the fact that the second power consumption gap corresponding to the nth charging and discharging sequence is greater than the corresponding energy storage discharge amount, the second power consumption gap corresponding to the nth charging and discharging sequence is added to the second power consumption gap corresponding to the previous i charging and discharging sequences, and the energy storage discharge amount corresponding to the nth charging and discharging sequence is added to the energy storage discharge amount corresponding to the previous i charging and discharging sequences, until the second power consumption gap after addition is less than or equal to the energy storage discharge amount after addition; The energy storage capacity corresponding to the nth charge-discharge sequence is determined as the ratio of the summed second power consumption gap to the energy storage conversion efficiency; Where n is a positive integer, and i is a positive integer less than n; The minimum energy storage capacity hour of the energy storage unit is determined based on the maximum value of each of the energy storage capacities and the minimum energy storage power.

2. The method according to claim 1, characterized in that, The step of determining the energy storage capacity corresponding to each charge / discharge sequence based on the second power consumption gap, the energy storage discharge amount, and the energy storage conversion efficiency corresponding to each charge / discharge sequence includes: In response to the second power consumption gap corresponding to the nth charge / discharge sequence being less than or equal to the corresponding energy storage discharge amount, the energy storage capacity corresponding to the nth charge / discharge sequence is determined as the ratio of the second power consumption gap to the energy storage conversion efficiency.

3. The method according to claim 1, characterized in that, The step of determining each charging / discharging sequence, and the second power consumption gap and energy storage discharge amount corresponding to each charging / discharging sequence, based on the first power consumption gap or the power generation surplus corresponding to each hour and the energy storage conversion efficiency, includes: In response to the power generation surplus corresponding to the [a,b]th hour and the first power consumption deficit corresponding to the [b+1,c]th hour, the [a,c]th hour is determined as a charging and discharging sequence; The sum of the first power consumption gaps in each of the charging and discharging sequences is determined as the second power consumption gap corresponding to each of the charging and discharging sequences; The sum of the power generation surplus in each of the charging and discharging sequences is multiplied by the energy storage conversion efficiency to determine the energy storage discharge amount corresponding to each of the charging and discharging sequences. Where a is a positive integer, b is a positive integer greater than a, and c is a positive integer greater than b.

4. The method according to any one of claims 1-3, characterized in that, The process of obtaining the annual hourly power generation of the new energy generator unit and the annual hourly power consumption of the hydrogen production unit includes: Obtain the first attribute information and environmental parameters corresponding to the new energy generator set; The annual hourly power generation is determined based on the attribute information and the environmental parameters; Obtain the second attribute information and target total hydrogen production of the hydrogen production unit; The annual electricity consumption for hydrogen production will be determined based on the target total hydrogen production. The annual hourly electricity consumption for hydrogen production is determined based on the annual hydrogen production electricity consumption, the second attribute information, and the annual hourly electricity generation.

5. The method according to any one of claims 1-3, characterized in that, The step of determining the minimum energy storage power corresponding to the energy storage unit based on the maximum value of each of the first power consumption gaps and the energy storage conversion efficiency includes: The minimum energy storage power is determined by the ratio of the maximum value of each of the first power consumption gap values ​​to the energy storage conversion efficiency.

6. A device for determining the energy storage ratio in a new energy hydrogen production system, characterized in that, The new energy hydrogen production system includes a new energy generator set, an energy storage unit, and a hydrogen production unit; the device includes: The first acquisition module is used to acquire the annual hourly power generation of the new energy generator set and the annual hourly power consumption of the hydrogen production unit. The first determining module is used to determine the first electricity consumption gap or electricity generation surplus corresponding to each hour based on the annual hourly power generation and the annual hourly electricity consumption. The second determining module is used to determine the minimum energy storage power corresponding to the energy storage unit based on the maximum value of each of the first power consumption gaps and the energy storage conversion efficiency. The third determining module is used to determine each charging and discharging sequence, and the second power consumption gap and energy storage discharge amount corresponding to each charging and discharging sequence, based on the first power consumption gap or the power generation surplus corresponding to each hour and the energy storage conversion efficiency. The fourth determining module determines the energy storage capacity corresponding to each charging and discharging sequence based on the second power consumption gap, the energy storage discharge amount, and the energy storage conversion efficiency. This includes: in response to the second power consumption gap corresponding to the nth charging and discharging sequence being greater than the corresponding energy storage discharge amount, adding the second power consumption gap corresponding to the nth charging and discharging sequence to the second power consumption gap corresponding to the previous i charging and discharging sequences, and adding the energy storage discharge amount corresponding to the nth charging and discharging sequence to the energy storage discharge amount corresponding to the previous i charging and discharging sequences, until the added second power consumption gap is less than or equal to the added energy storage discharge amount. The energy storage capacity corresponding to the nth charge-discharge sequence is determined as the ratio of the summed second power consumption gap to the energy storage conversion efficiency; Where n is a positive integer, and i is a positive integer less than n; The fifth determining module is used to determine the minimum energy storage capacity hours of the energy storage unit based on the maximum value of each of the energy storage capacities and the minimum energy storage power.

7. The apparatus according to claim 6, characterized in that, The fourth determining module is specifically used for: In response to the second power consumption gap corresponding to the nth charge / discharge sequence being less than or equal to the corresponding energy storage discharge amount, the energy storage capacity corresponding to the nth charge / discharge sequence is determined as the ratio of the second power consumption gap to the energy storage conversion efficiency.

8. An electronic device, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the method for determining the energy storage ratio of a new energy hydrogen production system as described in any one of claims 1-5.

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