System optimization method and device, storage medium, electronic equipment and product

Abstract

The invention relates to a system optimization method and device, a storage medium, electronic equipment and a product, the system optimization method and device are applied to a comprehensive energy system, the comprehensive energy system comprises a plurality of comprehensive energy subsystems, each comprehensive energy subsystem comprises an electric energy supply unit, a heat storage unit and a hydrogen production unit, and the hydrogen production unit comprises a plurality of hydrogen production devices. The method comprises the following steps: acquiring the actual power generation power of each electric energy supply unit by acquiring the specified demand power of the integrated energy system; determining a target demand power of each integrated energy subsystem according to the specified demand power and the actual generation power; determining the target hydrogen production power of each hydrogen production device according to the target demand power; and according to the target hydrogen production power, the target heat power of the heat storage unit is determined, and the heat storage unit is controlled to operate at the target heat power. Therefore, by determining the target hydrogen production power and the target thermal power and controlling the heat storage unit in the comprehensive energy system to operate at the target thermal power, the performance and economical efficiency of the comprehensive energy system can be effectively improved.

Description

Technical Field

[0001] This disclosure relates to the field of power technology, and more specifically, to a system optimization method, apparatus, storage medium, electronic equipment, and product. Background Technology

[0002] Integrated energy systems organically combine various energy sources, such as fossil fuels, electricity, natural gas, heating / cooling, hydrogen, and renewable energy, with various public services. Through optimized scheduling within the system, they achieve multi-energy complementarity, efficient energy utilization, tiered energy consumption for users, and convenient public services, bringing revolutionary changes to energy management and utilization and promoting sustainable economic and social development. However, existing integrated energy systems still suffer from low renewable energy utilization rates and high operation and maintenance costs. Summary of the Invention

[0003] To overcome the problems existing in the related technologies, this disclosure provides a system optimization method, apparatus, storage medium, electronic device and product.

[0004] To achieve the above objectives, this disclosure provides a system optimization method applied to an integrated energy system, the integrated energy system comprising multiple integrated energy subsystems, each subsystem including a power supply unit, a thermal storage unit, and a hydrogen production unit, the hydrogen production unit comprising multiple hydrogen production devices, the method comprising: Obtain the specified power demand for hydrogen production in the integrated energy system and the actual power generation of each of the power supply units; The target power requirement for hydrogen production in each of the integrated energy subsystems is determined based on the specified power requirement and the actual power generation. The target hydrogen production power of each hydrogen production device is determined based on the target required power. Based on the target hydrogen production capacity, determine the target thermal power of the thermal storage unit under the condition of minimizing the operating cost and new energy abandonment rate of the integrated energy system; Control the thermal storage unit in the integrated energy system to operate at the target thermal power.

[0005] Optionally, determining the target thermal power of the thermal storage unit based on the target hydrogen production capacity, while minimizing the operating cost of the integrated energy system and the rate of new energy curtailment, includes: An objective function is constructed based on the target hydrogen production power, the thermal power of the thermal storage unit, the operating cost of the integrated energy system, and the renewable energy curtailment rate. The objective function is used to characterize the relationship between the operating cost of the integrated energy system and the renewable energy curtailment rate and the thermal power of the thermal storage unit when the hydrogen production power of each hydrogen production device is the target hydrogen production power. Obtain the optimal solution of the thermal power of the thermal storage unit when the operating cost of the integrated energy system and the new energy abandonment rate are minimized under the preset constraints of the objective function, and take the optimal solution as the target thermal power.

[0006] Optionally, determining the target power requirement for hydrogen production in each of the integrated energy subsystems based on the specified power requirement and the actual power generation includes: Based on the actual power generation, the designated hydrogen production power of each hydrogen production unit is determined, and the hydrogen production load power of the integrated energy system is determined. The hydrogen production load power is used to characterize the sum of the designated hydrogen production power of all the hydrogen production units in the integrated energy system. If it is determined that the specified demand power is greater than the hydrogen production load power, the shared demand power of each hydrogen production unit is determined based on the specified demand power and the specified hydrogen production power. If it is determined that the specified demand power is greater than the sum of the shared demand power and the hydrogen production load power, the target supplementary power for each of the integrated energy subsystems is determined based on the specified demand power and the shared demand power. For each of the integrated energy subsystems, the sum of the target power to be replenished, the shared power demand, and the designated hydrogen production power is taken as the target power demand.

[0007] Optionally, determining the designated hydrogen production capacity for each hydrogen production unit based on the actual power generation capacity includes: Obtain the installed capacity of each of the hydrogen production units; If it is determined that the actual power generation is greater than the installed capacity, the installed capacity shall be used as the designated hydrogen production capacity. If it is determined that the actual power generation is less than the installed capacity, the actual power generation will be used as the designated hydrogen production capacity.

[0008] Optionally, determining the designated hydrogen production capacity of each hydrogen production unit based on the actual power generation capacity further includes: The first priority order is determined based on the actual power generation of each of the power supply units. Based on the specified required power and the specified hydrogen production power of each hydrogen production unit, the remaining hydrogen production power after sequentially removing the specified hydrogen production power of each hydrogen production unit is determined in accordance with the first priority order. If it is determined that the remaining hydrogen production power after removing the specified hydrogen production power of the first target hydrogen production unit is less than the specified hydrogen production power of the second target hydrogen production unit, the remaining hydrogen production power after removing the specified hydrogen production power of the first target hydrogen production unit shall be used as the specified hydrogen production power of the second target hydrogen production unit.

[0009] Optionally, determining the shared power requirement for each hydrogen production unit based on the specified power requirement and the specified hydrogen production power includes: The second priority order is determined based on the utilization rate of each hydrogen production unit; For each of the integrated energy subsystems, the shared demand power is determined sequentially according to the second priority order. The shared demand power is the difference between the installed capacity of the hydrogen production unit and the specified hydrogen production power.

[0010] Optionally, determining the shared power requirement for each hydrogen production unit based on the specified power requirement and the specified hydrogen production power includes: Based on the specified required power and the specified hydrogen production power of each hydrogen production unit, the remaining shared power after sequentially removing the specified hydrogen production power of each hydrogen production unit is determined in a second priority order. If it is determined that the remaining shared power after removing the specified hydrogen production power of the third target hydrogen production unit is greater than the shared demand power of the fourth target hydrogen production unit, the remaining shared power after removing the specified hydrogen production power of the third target hydrogen production unit shall be used as the shared demand power of the fourth target hydrogen production unit.

[0011] Optionally, determining the target power to be supplemented for each of the integrated energy subsystems based on the specified power demand and the shared power demand includes: The difference between the specified required power and the sum of the hydrogen production load power and the shared load power is taken as the required power to be supplemented. The shared load power is used to characterize the sum of the shared required power of all the hydrogen production units in the integrated energy system. The target power to be replenished for each integrated energy subsystem is determined based on the power demand to be replenished and the number of integrated energy subsystems.

[0012] Optionally, determining the target hydrogen production power of each hydrogen production device based on the target power demand includes: The third priority order and the specified hydrogen production power of the hydrogen production equipment at the highest efficiency point are obtained, and the first target hydrogen production equipment corresponding to the specified hydrogen production power is determined. The third priority order is used to characterize the order of the hydrogen production equipment from high to low hydrogen production efficiency under specific operating conditions. The target hydrogen production power of each hydrogen production device in the integrated energy system, excluding the first target hydrogen production device, is determined according to the preset adjustment ratio range and the specified hydrogen production power. The difference between the target power requirement and the specified hydrogen production power is used as the initial remaining power; Based on the initial remaining power and the target hydrogen production power of each hydrogen production device, the remaining hydrogen production power after sequentially removing the target hydrogen production power of each hydrogen production device is determined in accordance with the third priority order. If the remaining hydrogen production power after removing the target hydrogen production power of the second target hydrogen production equipment is less than the target hydrogen production power of the third target hydrogen production equipment, the remaining hydrogen production power after removing the target hydrogen production power of the second target hydrogen production equipment shall be used as the target hydrogen production power of the third target hydrogen production equipment.

[0013] According to a second aspect of the present disclosure, a system optimization apparatus is provided, applied to an integrated energy system, the integrated energy system including multiple integrated energy subsystems, each integrated energy subsystem including a power supply unit, a thermal storage unit, and a hydrogen production unit, the hydrogen production unit including multiple hydrogen production devices, the apparatus comprising: The acquisition module is used to acquire the specified power demand for hydrogen production in the integrated energy system and the actual power generation of each of the power supply units; The first determining module is used to determine the target power demand for hydrogen production in each of the integrated energy subsystems based on the specified power demand and the actual power generation. The second determining module is used to determine the target hydrogen production power of each of the hydrogen production devices based on the target required power. The third determining module is used to determine the target thermal power of the thermal storage unit under the condition of minimizing the operating cost of the integrated energy system and the new energy abandonment rate, based on the target hydrogen production power. An optimization module is used to control the thermal storage unit in the integrated energy system to operate at the target thermal power.

[0014] Optionally, the third determining module is configured to: An objective function is constructed based on the target hydrogen production power, the thermal power of the thermal storage unit, the operating cost of the integrated energy system, and the renewable energy curtailment rate. The objective function is used to characterize the relationship between the operating cost of the integrated energy system and the renewable energy curtailment rate and the thermal power of the thermal storage unit when the hydrogen production power of each hydrogen production device is the target hydrogen production power. Obtain the optimal solution of the thermal power of the thermal storage unit when the operating cost of the integrated energy system and the new energy abandonment rate are minimized under the preset constraints of the objective function, and take the optimal solution as the target thermal power.

[0015] Optionally, the first determining module is configured to: Optionally, based on the actual power generation, the designated hydrogen production power of each hydrogen production unit is determined, and the hydrogen production load power of the integrated energy system is determined. The hydrogen production load power is used to characterize the sum of the designated hydrogen production power of all the hydrogen production units in the integrated energy system. If it is determined that the specified demand power is greater than the hydrogen production load power, the shared demand power of each hydrogen production unit is determined based on the specified demand power and the specified hydrogen production power. If it is determined that the specified demand power is greater than the sum of the shared demand power and the hydrogen production load power, the target supplementary power for each of the integrated energy subsystems is determined based on the specified demand power and the shared demand power. For each of the integrated energy subsystems, the sum of the target power to be replenished, the shared power demand, and the designated hydrogen production power is taken as the target power demand.

[0016] Optionally, the first determining module is further configured to: Obtain the installed capacity of each of the hydrogen production units; If it is determined that the actual power generation is greater than the installed capacity, the installed capacity shall be used as the designated hydrogen production capacity. If it is determined that the actual power generation is less than the installed capacity, the actual power generation will be used as the designated hydrogen production capacity.

[0017] Optionally, the first determining module is further configured to: The first priority order is determined based on the actual power generation of each of the power supply units. Based on the specified required power and the specified hydrogen production power of each hydrogen production unit, the remaining hydrogen production power after sequentially removing the specified hydrogen production power of each hydrogen production unit is determined in accordance with the first priority order. If it is determined that the remaining hydrogen production power after removing the specified hydrogen production power of the first target hydrogen production unit is less than the specified hydrogen production power of the second target hydrogen production unit, the remaining hydrogen production power after removing the specified hydrogen production power of the first target hydrogen production unit shall be used as the specified hydrogen production power of the second target hydrogen production unit.

[0018] Optionally, the first determining module is further configured to: The second priority order is determined based on the utilization rate of each hydrogen production unit; For each of the integrated energy subsystems, the shared demand power is determined sequentially according to the second priority order. The shared demand power is the difference between the installed capacity of the hydrogen production unit and the specified hydrogen production power.

[0019] Optionally, the first determining module is further configured to: Based on the specified required power and the specified hydrogen production power of each hydrogen production unit, the remaining shared power after sequentially removing the specified hydrogen production power of each hydrogen production unit is determined in a second priority order. If it is determined that the remaining shared power after removing the specified hydrogen production power of the third target hydrogen production unit is greater than the shared demand power of the fourth target hydrogen production unit, the remaining shared power after removing the specified hydrogen production power of the third target hydrogen production unit shall be used as the shared demand power of the fourth target hydrogen production unit.

[0020] Optionally, the first determining module is further configured to: The difference between the specified required power and the sum of the hydrogen production load power and the shared load power is taken as the required power to be supplemented. The shared load power is used to characterize the sum of the shared required power of all the hydrogen production units in the integrated energy system. The target power to be replenished for each integrated energy subsystem is determined based on the power demand to be replenished and the number of integrated energy subsystems.

[0021] Optionally, the second determining module is further configured to: Obtain the third priority order and the specified hydrogen production power of the hydrogen production equipment at the highest efficiency point, and determine the first target hydrogen production equipment corresponding to the specified hydrogen production power. The third priority order is used to characterize the order of the hydrogen production equipment from high to low hydrogen production efficiency under specific operating conditions. The target hydrogen production power of each hydrogen production device in the integrated energy system, excluding the first target hydrogen production device, is determined according to the preset adjustment ratio range and the specified hydrogen production power. The difference between the target power requirement and the specified hydrogen production power is used as the initial remaining power; Based on the initial remaining power and the target hydrogen production power of each hydrogen production device, the remaining hydrogen production power after sequentially removing the target hydrogen production power of each hydrogen production device is determined in accordance with the third priority order. If the remaining hydrogen production power after removing the target hydrogen production power of the second target hydrogen production equipment is less than the target hydrogen production power of the third target hydrogen production equipment, the remaining hydrogen production power after removing the target hydrogen production power of the second target hydrogen production equipment shall be used as the target hydrogen production power of the third target hydrogen production equipment.

[0022] According to a third aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, on which a computer program is stored, the program instructions of which, when executed by a processor, implement the steps of the method described in the first aspect of the present disclosure.

[0023] According to a fourth aspect of the present disclosure, an electronic device is provided, comprising: A memory on which computer programs are stored; A processor is configured to execute the computer program in the memory to implement the steps of the method described in the first aspect of the present disclosure.

[0024] According to a fifth aspect of the present disclosure, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps of the method described in the first aspect of the present disclosure.

[0025] The above technical solution obtains the specified power demand for hydrogen production in the integrated energy system and the actual power generation of each power supply unit; determines the target power demand for hydrogen production in each integrated energy subsystem based on the specified power demand and the actual power generation; determines the target hydrogen production power of each hydrogen production device based on the target power demand; and determines the target thermal power of the thermal storage unit while minimizing the operating cost and renewable energy curtailment rate of the integrated energy system based on the target hydrogen production power, and controls the thermal storage unit in the integrated energy system to operate at the target thermal power. Thus, by sequentially determining the target hydrogen production power of each hydrogen production device in the integrated energy system, and determining the target thermal power of the thermal storage unit based on the target hydrogen production power, and controlling the thermal storage unit in the integrated energy system to operate at the target thermal power, frequent start-ups and overload operation can be avoided, equipment wear can be reduced, and service life can be extended. It can also effectively reduce the operating cost and renewable energy curtailment rate of the integrated energy system, thereby effectively improving the performance and economy of the integrated energy system, and ultimately improving user experience and satisfaction.

[0026] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a flowchart illustrating a system optimization method according to an exemplary embodiment; Figure 2 It is based on Figure 1 The illustrated embodiment presents a flowchart of a system optimization method; Figure 3 It is based on Figure 2 The illustrated embodiment presents a flowchart of a system optimization method; Figure 4 It is based on Figure 2 The illustrated embodiment shows a flowchart of another system optimization method; Figure 5 It is based on Figure 2 The illustrated embodiment shows a flowchart of another system optimization method; Figure 6 It is based on Figure 1 The illustrated embodiment shows a flowchart of another system optimization method; Figure 7 This is a block diagram illustrating a system optimization apparatus according to an exemplary embodiment; Figure 8 This is a block diagram illustrating an electronic device according to an exemplary embodiment; Figure 9 This is a block diagram illustrating an electronic device according to an exemplary embodiment. Detailed Implementation

[0028] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0029] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0030] Before detailing the specific implementation methods of this disclosure, the application scenarios of this disclosure are first explained below. This disclosure can be applied to scenarios involving the optimization of integrated energy systems. Integrated energy systems organically combine various energy sources such as fossil fuels, electricity, natural gas, heat / cooling, hydrogen, and renewable energy with various social public services. Through optimized scheduling within the system, it achieves multi-energy complementarity, efficient energy utilization, tiered energy consumption for users, and convenient social public services, bringing revolutionary changes to energy management and utilization and promoting sustainable economic and social development. However, existing integrated energy systems still suffer from low renewable energy utilization rates and high operation and maintenance costs.

[0031] To address the aforementioned technical problems, this disclosure provides a system optimization method, apparatus, storage medium, electronic device, and product applied to an integrated energy system. The integrated energy system includes multiple integrated energy subsystems, each including a power supply unit, a thermal storage unit, and a hydrogen production unit. Each hydrogen production unit includes multiple hydrogen production devices. The method involves acquiring a specified power demand for hydrogen production within the integrated energy system and the actual power generation of each power supply unit; determining a target power demand for hydrogen production in each integrated energy subsystem based on the specified power demand and the actual power generation; determining a target hydrogen production power for each hydrogen production device based on the target power demand; and determining a target thermal power for the thermal storage unit while minimizing the operating cost and renewable energy curtailment rate of the integrated energy system based on the target hydrogen production power. Finally, the method controls the thermal storage unit in the integrated energy system to operate at the target thermal power. In this way, by sequentially determining the target hydrogen production power of each hydrogen production device in the integrated energy system, and determining the target thermal power of the thermal storage unit based on the target hydrogen production power, and controlling the thermal storage unit in the integrated energy system to operate at the target thermal power, frequent start-ups and shutdowns and overload operation of the hydrogen production equipment can be avoided, equipment wear can be reduced, and service life can be extended. It can also effectively reduce the operating cost of the integrated energy system and the rate of new energy abandonment, thereby effectively improving the performance and economy of the integrated energy system, and further effectively improving the user experience and satisfaction.

[0032] The specific embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0033] Figure 1 This is a flowchart illustrating a system optimization method according to an exemplary embodiment, applied to an integrated energy system. The integrated energy system includes multiple integrated energy subsystems, each including a power supply unit, a thermal storage unit, and a hydrogen production unit. The hydrogen production unit includes multiple hydrogen production devices. The method includes: Step 101: Obtain the specified power requirement for hydrogen production in the integrated energy system and the actual power generation of each of the power supply units.

[0034] The power supply unit is used to convert renewable energy in the integrated energy subsystem into electrical energy, and the hydrogen production unit is used to convert electrical energy into hydrogen energy.

[0035] Step 102: Determine the target power requirement for hydrogen production in each of the integrated energy subsystems based on the specified power requirement and the actual power generation.

[0036] In this step, based on the actual power generation, the designated hydrogen production power of each hydrogen production unit is determined, and the hydrogen production load power of the integrated energy system is determined. The hydrogen production load power is used to characterize the sum of the designated hydrogen production power of all hydrogen production units in the integrated energy system. If the designated demand power is greater than the hydrogen production load power, the shared demand power of each hydrogen production unit is determined based on the designated demand power and the designated hydrogen production power. If the designated demand power is greater than the sum of the shared demand power and the hydrogen production load power, the target power to be supplemented for each integrated energy subsystem is determined based on the designated demand power and the shared demand power. For each integrated energy subsystem, the sum of the target power to be supplemented, the shared demand power, and the designated hydrogen production power is taken as the target demand power.

[0037] For example, the integrated energy system includes integrated energy subsystem A, integrated energy subsystem B, and integrated energy subsystem C. The specified power demand is 100 kW, the specified hydrogen production power of integrated energy subsystem A is 20 kW, the specified hydrogen production power of integrated energy subsystem B is 30 kW, and the specified hydrogen production power of integrated energy subsystem C is 10 kW. The hydrogen production load power can be determined to be 60 kW. If the specified power demand is greater than the hydrogen production load power, the shared power demand for each hydrogen production unit can be determined based on the specified power demand and the specified hydrogen production power. If the shared power demand for integrated energy subsystem A is determined to be 10 kW, the shared power demand for integrated energy subsystem B is 0 kW, and the shared power demand for integrated energy subsystem C is 20 kW, and the sum of the shared power demand and the hydrogen production load power is 90 kW, it can be determined that the specified power demand is greater than the sum of the shared power demand and the hydrogen production load power. The target supplementary power for each integrated energy subsystem can then be determined based on the specified power demand and the shared power demand. If the target power to be supplemented for integrated energy subsystem A is determined to be 3KW, the target power to be supplemented for integrated energy subsystem B is determined to be 3KW, and the target power to be supplemented for integrated energy subsystem C is determined to be 4KW, then the target power demand for integrated energy subsystem A is determined to be 33KW, the target power demand for integrated energy subsystem B is determined to be 33KW, and the target power demand for integrated energy subsystem C is determined to be 34KW.

[0038] Step 103: Determine the target hydrogen production power of each hydrogen production device based on the target required power.

[0039] In this step, a third priority order and a specified hydrogen production power at the highest efficiency point of the hydrogen production equipment are obtained, and a first target hydrogen production equipment corresponding to the specified hydrogen production power is determined. The third priority order is used to characterize the order of the hydrogen production equipment from high to low hydrogen production efficiency under specific operating conditions. The target hydrogen production power of each hydrogen production equipment in the integrated energy system, excluding the first target hydrogen production equipment, is determined according to a preset adjustment ratio range and the specified hydrogen production power. The difference between the target demand power and the specified hydrogen production power is used as the initial remaining power. According to the initial remaining power and the target hydrogen production power of each hydrogen production equipment, the remaining hydrogen production power after sequentially removing the target hydrogen production power of each hydrogen production equipment is determined according to the third priority order. If the remaining hydrogen production power after removing the target hydrogen production power of the second target hydrogen production equipment is less than the target hydrogen production power of the third target hydrogen production equipment, the remaining hydrogen production power after removing the target hydrogen production power of the second target hydrogen production equipment is used as the target hydrogen production power of the third target hydrogen production equipment.

[0040] Step 104: Based on the target hydrogen production power, determine the target thermal power of the thermal storage unit while minimizing the operating cost of the integrated energy system and the rate of abandonment of new energy sources.

[0041] In this step, an objective function is constructed based on the target hydrogen production power, the thermal power of the thermal storage unit, the operating cost of the integrated energy system, and the renewable energy curtailment rate. This objective function characterizes the relationship between the operating cost of the integrated energy system, the renewable energy curtailment rate, and the thermal power of the thermal storage unit when the hydrogen production power of each hydrogen production device is equal to the target hydrogen production power. The optimal solution of the thermal power of the thermal storage unit is obtained under preset constraints, where the operating cost of the integrated energy system and the renewable energy curtailment rate are minimized. This optimal solution is then used as the target thermal power.

[0042] It should be noted that the integrated energy subsystem also includes a gateway, which provides basic data acquisition, forwarding, and protocol conversion functions, supporting various mainstream device communication protocols in the industrial field, including but not limited to PLCs (Programmable Logic Controllers), smart meters, and smart devices. The gateway can convert data from different devices and protocols, ensuring data format consistency and compatibility. Compatible standard protocols include, but are not limited to, Modbus, DNP (Distributed Network Protocol), IEC104 (IEC 60870-5-104, International Electrotechnical Commission Standard 104), Bacent (Building Automation and Control Networks), OPCClient (OLE for Process Control), and IEEE888 (IEEE 802.15.4 Standard (Zigbee)).

[0043] Step 105: Control the thermal storage unit in the integrated energy system to operate at the target thermal power.

[0044] The above technical solutions, through a multi-protocol gateway architecture, enable access to data from various devices, support the forwarding of standard protocol data to third-party systems or devices, and establish channels between different devices in data transmission modes, laying a solid foundation for a highly efficient energy-saving system. Furthermore, by sequentially determining the target hydrogen production power of each hydrogen production device in the integrated energy system, and based on this target hydrogen production power, determining the target thermal power of the thermal storage unit, and controlling the thermal storage unit in the integrated energy system to operate at the target thermal power, frequent start-ups and shutdowns and overload operation of the hydrogen production equipment can be avoided, reducing equipment wear and extending its service life. This also effectively reduces the operating costs of the integrated energy system and the rate of renewable energy abandonment, thereby effectively improving the performance and economy of the integrated energy system, and ultimately enhancing user experience and satisfaction.

[0045] Optionally, Figure 1 Step 104, which involves determining the target thermal power of the thermal storage unit based on the target hydrogen production capacity while minimizing the operating cost of the integrated energy system and the rate of new energy curtailment, includes: An objective function is constructed based on the target hydrogen production capacity, the thermal power of the thermal storage unit, the operating cost of the integrated energy system, and the renewable energy curtailment rate. The optimal solution of the objective function, which minimizes the operating cost of the integrated energy system and the renewable energy curtailment rate under preset constraints, is obtained, and this optimal solution is taken as the target thermal power.

[0046] The objective function is used to characterize the relationship between the operating cost and the new energy curtailment rate of the integrated energy system and the thermal power of the thermal storage unit when the hydrogen production power of each hydrogen production device is the target hydrogen production power.

[0047] In this step, the integrated sub-energy system may further include a power grid and energy storage units, and the expression of the objective function can be as follows: f cost =min[C grid *P gird +C heat *(P heat,dis+ P heat.ch )+C hy.Buy *P hy.Rest +C bess *(P) bat.dis +P bat,ch )+C hy *P hy ]; f powr =min[P res -P hy -P heat -P bat.ch -P fix ].

[0048] Among them, f cost f represents the operating cost of an integrated energy system. powr C represents the rate of abandonment of new energy sources. grid C represents the unit cost of grid supplemental power. heat C represents the unit operation and maintenance cost of thermal energy storage, specifically the thermal storage capacity and heat release capacity. hy.Buy The unit cost of the target power to be supplemented, C bess C represents the unit operation and maintenance cost of energy storage charging and discharging power. hy This represents the unit operating and maintenance cost of the hydrogen production unit. gird P represents the power supplied to the power grid. heat,dis P represents the heat release power of the thermal storage system. heat.ch P represents the thermal storage power of the thermal storage system. hy.Rest P represents the sum of the target power to be supplemented in the integrated energy system. bat.dis P represents the discharge power of the energy storage system.bat,ch P represents the charging power of the energy storage system. hy P represents the sum of the target hydrogen production power of each hydrogen production device in the integrated energy system. fix P represents a fixed load. res P represents the total actual power generation of the power supply units. heat This indicates the heat release power and heat storage power of the thermal storage system.

[0049] The preset constraints may include power generation constraints of the power supply unit, energy storage constraints, hydrogen production power constraints, thermal storage constraints, and energy balance constraints.

[0050] Power generation constraints of power supply units: 0≤P res.t ≤η res *P res.max ; Among them, P res.t η represents the actual power generation of the power supply unit at time t. res P represents power generation efficiency. res.max This indicates the maximum generating capacity of the power supply unit.

[0051] Energy storage constraints: 0≤P bat,ch.t。 ≤P bat,ch.max ; 0≤P bat,dis.t。 ≤P bat,dis.max ; SOC _min ≤SOC .t ≤SOC _max ; Among them, P bat,ch.t P represents the charging power of the energy storage unit at time t. bat,ch.max P represents the maximum charging power of the energy storage unit. bat,dis.t P represents the discharge power of the energy storage unit at time t. bat,dis.max State of Charge (SOC) represents the maximum discharge power of the energy storage unit. .t State of Charge (SOC) represents the charge capacity of the energy storage unit at time t. _min This indicates the minimum charge capacity of the energy storage unit, and this indicates the maximum charge capacity of the energy storage unit.

[0052] Hydrogen production power constraints: P hy.min ≤P hy.i ≤P hy.max ; Among them, P hy.i P represents the hydrogen production capacity of a hydrogen production device. hy.min P represents the minimum hydrogen production capacity of the hydrogen production equipment.hy.max This indicates the maximum hydrogen production capacity of the hydrogen production equipment.

[0053] Thermal storage constraints: 0≤P heat,ch.t ≤P heat,ch.max ; 0≤P heat,dis.t ≤P heat,dis.max ; E heat_min ≤E heat.t ≤E heat_max ; Among them, P heat,ch.t P represents the thermal storage power of the thermal storage unit at time t. heat,ch.max P represents the maximum thermal storage capacity of the thermal storage unit. heat,dis.t P represents the heat release power of the thermal storage unit at time t. heat,dis.max E represents the maximum heat release capacity of the thermal storage unit. heat_min E represents the minimum capacity of the thermal storage unit. heat_max This indicates the maximum capacity of the thermal storage unit.

[0054] The above technical solution constructs an objective function based on the target hydrogen production power, the thermal power of the thermal storage unit, the operating cost of the integrated energy system, and the renewable energy curtailment rate. Under preset constraints, it determines the optimal solution for the thermal power of the thermal storage unit when the operating cost of the integrated energy system and the renewable energy curtailment rate are minimized. The optimal solution is then used as the target thermal power. This effectively reduces the operating cost of the integrated energy system and the renewable energy curtailment rate, thereby effectively improving the user experience and satisfaction.

[0055] Figure 2 It is based on Figure 1 The illustrated embodiment shows a flowchart of a system optimization method, as follows: Figure 2 As shown, Figure 1 Step 102, which involves determining the target power requirement for hydrogen production in each of the integrated energy subsystems based on the specified power requirement and the actual power generation, may include: Step 1021: Based on the actual power generation, determine the designated hydrogen production power of each hydrogen production unit and determine the hydrogen production load power of the integrated energy system.

[0056] The hydrogen production load power is used to characterize the sum of the specified hydrogen production power of all the hydrogen production units in the integrated energy system.

[0057] In this step, the installed capacity of each hydrogen production unit is obtained. If the actual power generation is greater than the installed capacity, the installed capacity is used as the designated hydrogen production power. If the actual power generation is less than the installed capacity, the actual power generation is used as the designated hydrogen production power. Furthermore, a first priority order is determined based on the actual power generation of each power supply unit. Based on the designated demand power and the designated hydrogen production power of each hydrogen production unit, the remaining hydrogen production power after sequentially eliminating the designated hydrogen production power of each hydrogen production unit is determined according to the first priority order. If the remaining hydrogen production power after eliminating the designated hydrogen production power of the first target hydrogen production unit is less than the designated hydrogen production power of the second target hydrogen production unit, the remaining hydrogen production power after eliminating the designated hydrogen production power of the first target hydrogen production unit is used as the designated hydrogen production power of the second target hydrogen production unit.

[0058] Step 1022: If it is determined that the specified demand power is greater than the hydrogen production load power, the shared demand power of each hydrogen production unit is determined based on the specified demand power and the specified hydrogen production power.

[0059] In this step, a second priority order is determined based on the utilization rate of each hydrogen production unit. For each integrated energy subsystem, the shared demand power is determined sequentially according to the second priority order, where the shared demand power is the difference between the installed capacity of the hydrogen production unit and the designated hydrogen production power. Furthermore, based on the designated demand power and the designated hydrogen production power of each hydrogen production unit, the remaining shared power after sequentially eliminating the designated hydrogen production power of each hydrogen production unit is determined according to the second priority order. If it is determined that the remaining shared power after eliminating the designated hydrogen production power of the third target hydrogen production unit is greater than the shared demand power of the fourth target hydrogen production unit, the remaining shared power after eliminating the designated hydrogen production power of the third target hydrogen production unit is taken as the shared demand power of the fourth target hydrogen production unit.

[0060] Step 1023: If it is determined that the specified demand power is greater than the sum of the shared demand power and the hydrogen production load power, the target power to be supplemented for each of the integrated energy subsystems is determined based on the specified demand power and the shared demand power.

[0061] In this step, the difference between the specified demand power and the sum of the hydrogen production load power and the shared load power is taken as the demand power to be supplemented. The shared load power is used to characterize the total shared demand power of all the hydrogen production units in the integrated energy system. The target demand power to be supplemented for each integrated energy subsystem is determined according to the demand power to be supplemented and the number of integrated energy subsystems.

[0062] Step 1024: For each of the integrated energy subsystems, the sum of the target power to be replenished, the shared power demand, and the specified hydrogen production power is taken as the target power demand.

[0063] The above technical solution determines the specified hydrogen production power of each integrated energy subsystem based on the actual power generation and the specified power demand, shares the power demand and the target power to be supplemented, and can determine the target power demand of each integrated energy subsystem, providing data support for subsequently determining the target hydrogen production power of each hydrogen production device.

[0064] Figure 3 It is based on Figure 2 The illustrated embodiment shows a flowchart of a system optimization method, as follows: Figure 3 As shown, Figure 2 Step 1021, which involves determining the designated hydrogen production capacity of each hydrogen production unit based on the actual power generation, may include: S11, Obtain the installed capacity of each of the hydrogen production units.

[0065] The installed capacity of the hydrogen production unit refers to the maximum amount of hydrogen that the hydrogen production equipment can produce per unit time.

[0066] S12, if it is determined that the actual power generation is greater than the installed capacity, the installed capacity is used as the designated hydrogen production power.

[0067] S13, if it is determined that the actual power generation is less than the installed capacity, the actual power generation is used as the designated hydrogen production power.

[0068] For example, the installed capacity of hydrogen production unit A is 40KW, and the actual power generation of power supply unit A is 50KW. The installed capacity of hydrogen production unit B is 40KW, and the actual power generation of power supply unit B is 30KW. The installed capacity of hydrogen production unit C is 40KW, and the actual power generation of power supply unit C is 40KW. Therefore, the designated hydrogen production power of hydrogen production unit A is 40KW, the designated hydrogen production power of hydrogen production unit B is 30KW, and the designated hydrogen production power of hydrogen production unit C is 40KW.

[0069] S14, determine the first priority order based on the actual power generation of each of the power supply units.

[0070] The first priority order is used to characterize the order of the power supply units from high to low actual power generation.

[0071] S15, based on the specified required power and the specified hydrogen production power of each hydrogen production unit, determine the remaining hydrogen production power after sequentially removing the specified hydrogen production power of each hydrogen production unit according to the first priority order.

[0072] S16, if it is determined that the remaining hydrogen production power after removing the specified hydrogen production power of the first target hydrogen production unit is less than the specified hydrogen production power of the second target hydrogen production unit, the remaining hydrogen production power after removing the specified hydrogen production power of the first target hydrogen production unit shall be used as the specified hydrogen production power of the second target hydrogen production unit.

[0073] The second target hydrogen production unit is the next hydrogen production unit after the first target hydrogen production unit determined according to the first priority order.

[0074] For example, the integrated energy system includes integrated energy subsystem A, integrated energy subsystem B, and integrated energy subsystem C. Integrated energy subsystem A includes hydrogen production unit A and power supply unit A; integrated energy subsystem B includes hydrogen production unit B and power supply unit B; and integrated energy subsystem C includes hydrogen production unit C and power supply unit C. Wherein, the specified power demand is 100 kW, the actual power generation capacity of power supply unit A is 40 kW, the actual power generation capacity of power supply unit B is 60 kW, and the actual power generation capacity of power supply unit C is 20 kW, the first priority order can be determined as power supply unit B, power supply unit A, and power supply unit C. If the designated hydrogen production capacity of hydrogen production unit A is determined to be 30 kW, the designated hydrogen production capacity of hydrogen production unit B is determined to be 60 kW, and the designated hydrogen production capacity of hydrogen production unit C is determined to be 20 kW, then the remaining hydrogen production capacity after removing the designated hydrogen production capacity of hydrogen production unit B is determined to be 40 kW, and the remaining hydrogen production capacity after removing the designated hydrogen production capacity of hydrogen production unit A is determined to be 10 kW. After removing the designated hydrogen production capacity of hydrogen production unit B, the first target hydrogen production unit can be determined to be hydrogen production unit A, and the second target hydrogen production unit can be determined to be hydrogen production unit C. At this time, the designated hydrogen production capacity of hydrogen production unit C is 10 kW.

[0075] Figure 4 It is based on Figure 2 The flowchart of another system optimization method shown in the embodiment is as follows: Figure 3 As shown, Figure 2 Step 1022, which involves determining the shared power demand for each hydrogen production unit based on the specified power demand and the specified hydrogen production power, may include: S21, determine the second priority order based on the utilization rate of each hydrogen production unit.

[0076] The second priority order is used to characterize the order of the hydrogen production units from lowest to highest utilization rate. The utilization rate of a hydrogen production unit is the ratio of its designated hydrogen production power to its installed capacity.

[0077] S22, for each of the integrated energy subsystems, the shared power demand is determined sequentially according to the second priority order.

[0078] Wherein, the shared required power is the difference between the installed capacity of the hydrogen production unit and the specified hydrogen production power.

[0079] S23, based on the specified required power and the specified hydrogen production power of each hydrogen production unit, determine the remaining shared power after sequentially removing the specified hydrogen production power of each hydrogen production unit in a second priority order; S24, if it is determined that the remaining shared power after removing the specified hydrogen production power of the third target hydrogen production unit is greater than the shared demand power of the fourth target hydrogen production unit, the remaining shared power after removing the specified hydrogen production power of the third target hydrogen production unit shall be used as the shared demand power of the fourth target hydrogen production unit.

[0080] The fourth target hydrogen production unit is the next hydrogen production unit after the third target hydrogen production unit determined according to the second priority order.

[0081] For example, the integrated energy system includes an integrated energy subsystem A, an integrated energy subsystem B, and an integrated energy subsystem C. Integrated energy subsystem A includes a hydrogen production unit A, integrated energy subsystem B includes a hydrogen production unit B, and integrated energy subsystem C includes a hydrogen production unit C. The specified power demand is 100 kW. The utilization rate of hydrogen production unit A is 50%, the utilization rate of hydrogen production unit B is 60%, and the utilization rate of hydrogen production unit C is 40%. The specified hydrogen production power of hydrogen production unit A is 50 kW, the specified hydrogen production power of hydrogen production unit B is 60 kW, and the specified hydrogen production power of hydrogen production unit C is 40 kW. Therefore, the second priority order can be determined as hydrogen production unit C, hydrogen production unit A, and hydrogen production unit B. At this point, it can be determined that the remaining shared power after removing the designated hydrogen production power of hydrogen production unit C is 60KW, and the remaining shared power after removing the designated hydrogen production power of hydrogen production unit A is 10KW. Therefore, the third target hydrogen production unit can be identified as hydrogen production unit A, and the fourth target hydrogen production unit is hydrogen production unit B. At this point, the shared power requirement of hydrogen production unit B is 10KW.

[0082] The above technical solution, based on the specified power demand and the specified hydrogen production power of each hydrogen production unit, determines the shared power demand of the hydrogen production units in the second priority order, which can improve the utilization rate of the hydrogen production units and provide data support for subsequently determining the target hydrogen production power of each hydrogen production device.

[0083] Figure 5 It is based on Figure 2 The flowchart of another system optimization method shown in the embodiment is as follows: Figure 3 As shown, Figure 2 Step 1023, which involves determining the target power to be supplemented for each of the integrated energy subsystems based on the specified power demand and the shared power demand, may include: S31, the difference between the specified required power and the sum of the hydrogen production load power and the shared load power is taken as the required power to be supplemented.

[0084] The shared load power is used to characterize the sum of the shared power demand of all the hydrogen production units in the integrated energy system.

[0085] S32, determine the target power to be replenished for each integrated energy subsystem based on the power demand to be replenished and the number of integrated energy subsystems.

[0086] In this step, the ratio of the required power to be supplemented to the number of integrated energy subsystems is taken as the target power to be supplemented.

[0087] For example, the power demand to be supplemented is 100KW, the number of integrated energy subsystems is 5, and the target power demand to be supplemented for each integrated energy subsystem is 20KW.

[0088] The above technical solution determines the power demand to be supplemented based on the specified power demand, the hydrogen production load power, and the shared load, and determines the target power demand to be supplemented, which can provide a basis for subsequently determining the target power demand for each hydrogen production unit.

[0089] Figure 6 It is based on Figure 1 The flowchart of another system optimization method shown in the embodiment is as follows: Figure 6 As shown, Figure 1 Step 103, which involves determining the target hydrogen production power of each hydrogen production device based on the target required power, may include: Step 1031: Obtain the third priority order and the specified hydrogen production power of the hydrogen production equipment at the highest efficiency point, and determine the first target hydrogen production equipment corresponding to the specified hydrogen production power.

[0090] The third priority order is used to characterize the order of hydrogen production equipment from high to low hydrogen production efficiency under specific operating conditions.

[0091] Step 1032: Determine the target hydrogen production power of each hydrogen production device in the integrated energy system, excluding the first target hydrogen production device, based on the preset adjustment ratio range and the specified hydrogen production power.

[0092] The preset adjustment ratio range can be [0.8, 1.1] or other preset adjustment ranges.

[0093] In this step, the target ratio is determined based on the current production situation and the preset adjustment ratio range. Based on the target ratio and the specified hydrogen production power, the target hydrogen production power of each of the hydrogen production devices in the integrated energy system, excluding the first target hydrogen production device, is determined.

[0094] For example, with a target ratio of 0.9 and a specified hydrogen production power of 50KW, it can be determined that the target hydrogen production power of each of the hydrogen production devices in the integrated energy system, excluding the first target hydrogen production device, is 45KW.

[0095] Step 1033: For each integrated energy system, the difference between the target power demand and the specified hydrogen production power is used as the initial surplus power.

[0096] Step 1034: Based on the initial remaining power and the target hydrogen production power of each hydrogen production device, determine the remaining hydrogen production power after sequentially removing the target hydrogen production power of each hydrogen production device according to the third priority order.

[0097] Step 1035: If the remaining hydrogen production power after removing the target hydrogen production power of the second target hydrogen production equipment is less than the target hydrogen production power of the third target hydrogen production equipment, the remaining hydrogen production power after removing the target hydrogen production power of the second target hydrogen production equipment shall be used as the target hydrogen production power of the third target hydrogen production equipment.

[0098] The third target hydrogen production device is the next hydrogen production device after the second target hydrogen production device determined according to the third priority order.

[0099] For example, the integrated energy subsystem includes a hydrogen production unit A, which comprises hydrogen production equipment A1, A2, and A3. Based on an initial remaining power of 100W, the target hydrogen production power of hydrogen production equipment A1 is 40W, the target hydrogen production power of hydrogen production equipment A2 is 40W, and the target hydrogen production power of hydrogen production equipment A3 is 40W. The third priority order is hydrogen production equipment A3, hydrogen production equipment A1, and hydrogen production equipment A2. Determining that the remaining hydrogen production power after removing the target hydrogen production power of hydrogen production equipment A3 is 60W, and the remaining hydrogen production power after removing the target hydrogen production power of hydrogen production equipment A1 is 20W, it can be determined that the second target hydrogen production equipment is hydrogen production equipment A1, and the third target hydrogen production equipment is hydrogen production equipment A2. At this point, the target hydrogen production power of hydrogen production equipment A2 is 20W.

[0100] The above technical solution determines the target hydrogen production power of each hydrogen production device in the integrated energy system according to the specified hydrogen production power and the preset adjustment ratio range, in the third priority order. This provides a basis for determining the target thermal power of the thermal storage unit when the operating cost of the integrated energy system and the new energy abandonment rate are minimized.

[0101] Figure 7 This is a block diagram illustrating a system optimization apparatus according to an exemplary embodiment. The system optimization apparatus is applied to an integrated energy system, which includes multiple integrated energy subsystems. Each integrated energy subsystem includes a power supply unit, a thermal storage unit, and a hydrogen production unit. The hydrogen production unit includes multiple hydrogen production devices. The apparatus includes: The acquisition module 701 is used to acquire the specified power demand for hydrogen production in the integrated energy system and the actual power generation of each of the power supply units; The first determining module 702 is used to determine the target demand power for hydrogen production in each of the integrated energy subsystems based on the specified demand power and the actual power generation power. The second determining module 703 is used to determine the target hydrogen production power of each of the hydrogen production devices based on the target required power. The third determining module 704 is used to determine the target thermal power of the thermal storage unit based on the target hydrogen production power, under the condition of minimizing the operating cost of the integrated energy system and the new energy abandonment rate. The optimization module 705 controls the thermal storage unit in the integrated energy system to operate at the target thermal power.

[0102] The above technical solution obtains the specified power demand for hydrogen production in the integrated energy system and the actual power generation of each power supply unit; determines the target power demand for hydrogen production in each integrated energy subsystem based on the specified power demand and the actual power generation; determines the target hydrogen production power of each hydrogen production device based on the target power demand; and determines the target thermal power of the thermal storage unit under the condition of minimizing the operating cost and renewable energy curtailment rate of the integrated energy system based on the target hydrogen production power, and controls the thermal storage unit in the integrated energy system to operate at the target thermal power. Thus, by sequentially determining the target hydrogen production power of each hydrogen production device in the integrated energy system, and determining the target thermal power of the thermal storage unit based on the target hydrogen production power, and controlling the thermal storage unit in the integrated energy system to operate at the target thermal power, frequent start-ups and shutdowns and overload operation of hydrogen production equipment can be avoided, reducing equipment wear and extending service life. It can also effectively reduce the operating cost and renewable energy curtailment rate of the integrated energy system, thereby effectively improving the performance and economy of the integrated energy system, and ultimately improving user experience and satisfaction.

[0103] Optionally, the third determining module 704 is configured to: An objective function is constructed based on the target hydrogen production power, the thermal power of the thermal storage unit, the operating cost of the integrated energy system, and the renewable energy curtailment rate. The objective function is used to characterize the relationship between the operating cost of the integrated energy system and the renewable energy curtailment rate and the thermal power of the thermal storage unit when the hydrogen production power of each hydrogen production device is the target hydrogen production power. Obtain the optimal solution of the thermal power of the thermal storage unit when the operating cost of the integrated energy system and the new energy abandonment rate are minimized under the preset constraints of the objective function, and take the optimal solution as the target thermal power.

[0104] Optionally, the first determining module 702 is configured to: Optionally, based on the actual power generation, the designated hydrogen production power of each hydrogen production unit is determined, and the hydrogen production load power of the integrated energy system is determined. The hydrogen production load power is used to characterize the sum of the designated hydrogen production power of all the hydrogen production units in the integrated energy system. If it is determined that the specified demand power is greater than the hydrogen production load power, the shared demand power of each hydrogen production unit is determined based on the specified demand power and the specified hydrogen production power. If it is determined that the specified demand power is greater than the sum of the shared demand power and the hydrogen production load power, the target supplementary power for each of the integrated energy subsystems is determined based on the specified demand power and the shared demand power. For each of the integrated energy subsystems, the sum of the target power to be replenished, the shared power demand, and the designated hydrogen production power is taken as the target power demand.

[0105] Optionally, the first determining module 702 is further configured to: Obtain the installed capacity of each of the hydrogen production units; If it is determined that the actual power generation is greater than the installed capacity, the installed capacity shall be used as the designated hydrogen production capacity. If it is determined that the actual power generation is less than the installed capacity, the actual power generation will be used as the designated hydrogen production capacity.

[0106] Optionally, the first determining module 702 is further configured to: The first priority order is determined based on the actual power generation of each of the power supply units. Based on the specified required power and the specified hydrogen production power of each hydrogen production unit, the remaining hydrogen production power after sequentially removing the specified hydrogen production power of each hydrogen production unit is determined in accordance with the first priority order. If it is determined that the remaining hydrogen production power after removing the specified hydrogen production power of the first target hydrogen production unit is less than the specified hydrogen production power of the second target hydrogen production unit, the remaining hydrogen production power after removing the specified hydrogen production power of the first target hydrogen production unit shall be used as the specified hydrogen production power of the second target hydrogen production unit.

[0107] Optionally, the first determining module 702 is further configured to: The second priority order is determined based on the utilization rate of each hydrogen production unit; For each of the integrated energy subsystems, the shared demand power is determined sequentially according to the second priority order. The shared demand power is the difference between the installed capacity of the hydrogen production unit and the specified hydrogen production power.

[0108] Optionally, the first determining module 702 is further configured to: Based on the specified required power and the specified hydrogen production power of each hydrogen production unit, the remaining shared power after sequentially removing the specified hydrogen production power of each hydrogen production unit is determined in a second priority order. If it is determined that the remaining shared power after removing the specified hydrogen production power of the third target hydrogen production unit is greater than the shared demand power of the fourth target hydrogen production unit, the remaining shared power after removing the specified hydrogen production power of the third target hydrogen production unit shall be used as the shared demand power of the fourth target hydrogen production unit.

[0109] Optionally, the first determining module 702 is further configured to: The difference between the specified required power and the sum of the hydrogen production load power and the shared load power is taken as the required power to be supplemented. The shared load power is used to characterize the sum of the shared required power of all the hydrogen production units in the integrated energy system. The target power to be replenished for each integrated energy subsystem is determined based on the power demand to be replenished and the number of integrated energy subsystems.

[0110] Optionally, the second determining module 703 is further configured to: Obtain the third priority order and the specified hydrogen production power of the hydrogen production equipment at the highest efficiency point, and determine the first target hydrogen production equipment corresponding to the specified hydrogen production power. The third priority order is used to characterize the order of the hydrogen production equipment from high to low hydrogen production efficiency under specific operating conditions. The target hydrogen production power of each hydrogen production device in the integrated energy system, excluding the first target hydrogen production device, is determined according to the preset adjustment ratio range and the specified hydrogen production power. The difference between the target power requirement and the specified hydrogen production power is used as the initial remaining power; Based on the initial remaining power and the target hydrogen production power of each hydrogen production device, the remaining hydrogen production power after sequentially removing the target hydrogen production power of each hydrogen production device is determined in accordance with the third priority order. If the remaining hydrogen production power after removing the target hydrogen production power of the second target hydrogen production equipment is less than the target hydrogen production power of the third target hydrogen production equipment, the remaining hydrogen production power after removing the target hydrogen production power of the second target hydrogen production equipment shall be used as the target hydrogen production power of the third target hydrogen production equipment.

[0111] The above technical solution, by sequentially determining the target hydrogen production power of each hydrogen production device in the integrated energy system, and determining the target thermal power of the thermal storage unit based on the target hydrogen production power, and controlling the thermal storage unit in the integrated energy system to operate at the target thermal power, can avoid frequent start-ups and overload operation of hydrogen production equipment, reduce equipment wear, extend service life, and effectively reduce the operating cost and renewable energy abandonment rate of the integrated energy system. This can effectively improve the performance and economy of the integrated energy system, and further improve the user experience and satisfaction.

[0112] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0113] This disclosure also provides a computer-readable storage medium having stored thereon computer program instructions that, when executed by a processor, implement the steps of the system optimization method provided in this disclosure.

[0114] Figure 8 This is a block diagram illustrating an electronic device 800 according to an exemplary embodiment. For example... Figure 8 As shown, the electronic device 800 may include a processor 801 and a memory 802. The electronic device 800 may also include one or more of a multimedia component 803, an input / output (I / O) interface 804, and a communication component 805.

[0115] The processor 801 controls the overall operation of the electronic device 800 to complete all or part of the steps in the system optimization method described above. The memory 802 stores various types of data to support the operation of the electronic device 800. This data may include, for example, instructions for any application or method operating on the electronic device 800, and application-related data such as contact data, sent and received messages, pictures, audio, video, etc. The memory 802 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The multimedia component 803 may include a screen and audio components. The screen may be, for example, a touchscreen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in memory 802 or transmitted via communication component 805. The audio component also includes at least one speaker for outputting audio signals. I / O interface 804 provides an interface between processor 801 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual or physical buttons. Communication component 805 is used for wired or wireless communication between the electronic device 800 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IoT, eMTC, or other 5G technologies, or combinations thereof, is not limited here. Therefore, the corresponding communication component 805 may include: a Wi-Fi module, a Bluetooth module, an NFC module, etc.

[0116] In an exemplary embodiment, the electronic device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the system optimization method described above.

[0117] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, which, when executed by a processor, implement the steps of the system optimization method described above. For example, the computer-readable storage medium may be the memory 802 including program instructions described above, which may be executed by the processor 801 of the electronic device 800 to complete the system optimization method described above.

[0118] Figure 9 This is a block diagram illustrating an electronic device according to an exemplary embodiment. For example, electronic device 900 may be provided as a server. (Refer to...) Figure 9 The electronic device 900 includes a processor 901, which may be one or more, and a memory 902 for storing computer programs executable by the processor 901. The computer program stored in the memory 902 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processor 901 may be configured to execute the computer program to perform the system optimization method described above.

[0119] Additionally, the electronic device 900 may also include a power supply component 903 and a communication component 904. The power supply component 903 can be configured to perform power management of the electronic device 900, and the communication component 904 can be configured to enable communication of the electronic device 900, such as wired or wireless communication. Furthermore, the electronic device 900 may also include an input / output (I / O) interface 905. The electronic device 900 can operate on an operating system stored in the memory 902.

[0120] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, which, when executed by a processor, implement the steps of the system optimization method described above. For example, the non-transitory computer-readable storage medium may be the memory 902 including program instructions described above, which may be executed by the processor 901 of the electronic device 900 to complete the system optimization method described above.

[0121] In another exemplary embodiment, a computer program product is also provided, the computer program product comprising a computer program executable by a programmable device, the computer program having a code portion for performing the above-described system optimization method when executed by the programmable device.

[0122] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0123] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0124] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A system optimization method, characterized in that, Applied to an integrated energy system, the integrated energy system comprising multiple integrated energy subsystems, each integrated energy subsystem including a power supply unit, a thermal storage unit, and a hydrogen production unit, the hydrogen production unit comprising multiple hydrogen production devices, the method comprising: Obtain the specified power demand for hydrogen production in the integrated energy system and the actual power generation of each of the power supply units; The target power requirement for hydrogen production in each of the integrated energy subsystems is determined based on the specified power requirement and the actual power generation. The target hydrogen production power of each hydrogen production device is determined based on the target required power. Based on the target hydrogen production capacity, determine the target thermal power of the thermal storage unit under the condition of minimizing the operating cost and new energy abandonment rate of the integrated energy system; Control the thermal storage unit in the integrated energy system to operate at the target thermal power.

2. The system optimization method according to claim 1, characterized in that, The step of determining the target thermal power of the thermal storage unit based on the target hydrogen production capacity, while minimizing the operating cost of the integrated energy system and the rate of new energy curtailment, includes: An objective function is constructed based on the target hydrogen production power, the thermal power of the thermal storage unit, the operating cost of the integrated energy system, and the renewable energy curtailment rate. The objective function is used to characterize the relationship between the operating cost of the integrated energy system and the renewable energy curtailment rate and the thermal power of the thermal storage unit when the hydrogen production power of each hydrogen production device is the target hydrogen production power. Obtain the optimal solution of the thermal power of the thermal storage unit when the operating cost of the integrated energy system and the new energy abandonment rate are minimized under the preset constraints of the objective function, and take the optimal solution as the target thermal power.

3. The system optimization method according to claim 1, characterized in that, Determining the target power requirement for hydrogen production in each of the integrated energy subsystems based on the specified power requirement and the actual power generation includes: Based on the actual power generation, the designated hydrogen production power of each hydrogen production unit is determined, and the hydrogen production load power of the integrated energy system is determined. The hydrogen production load power is used to characterize the sum of the designated hydrogen production power of all the hydrogen production units in the integrated energy system. If it is determined that the specified demand power is greater than the hydrogen production load power, the shared demand power of each hydrogen production unit is determined based on the specified demand power and the specified hydrogen production power. If it is determined that the specified demand power is greater than the sum of the shared demand power and the hydrogen production load power, the target supplementary power for each of the integrated energy subsystems is determined based on the specified demand power and the shared demand power. For each of the integrated energy subsystems, the sum of the target power to be replenished, the shared power demand, and the designated hydrogen production power is taken as the target power demand.

4. The system optimization method according to claim 3, characterized in that, The step of determining the designated hydrogen production capacity for each hydrogen production unit based on the actual power generation includes: Obtain the installed capacity of each of the hydrogen production units; If it is determined that the actual power generation is greater than the installed capacity, the installed capacity shall be used as the designated hydrogen production capacity. If it is determined that the actual power generation is less than the installed capacity, the actual power generation will be used as the designated hydrogen production capacity.

5. The system optimization method according to claim 3, characterized in that, The step of determining the designated hydrogen production capacity for each hydrogen production unit based on the actual power generation capacity further includes: The first priority order is determined based on the actual power generation of each of the power supply units. Based on the specified required power and the specified hydrogen production power of each hydrogen production unit, the remaining hydrogen production power after sequentially removing the specified hydrogen production power of each hydrogen production unit is determined in accordance with the first priority order. If it is determined that the remaining hydrogen production power after removing the designated hydrogen production power of the first target hydrogen production unit is less than the designated hydrogen production power of the second target hydrogen production unit, the remaining hydrogen production power after removing the designated hydrogen production power of the first target hydrogen production unit shall be used as the designated hydrogen production power of the second target hydrogen production unit.

6. The system optimization method according to claim 3, characterized in that, Determining the shared power requirement for each hydrogen production unit based on the specified power demand and the specified hydrogen production power includes: The second priority order is determined based on the utilization rate of each hydrogen production unit; For each of the integrated energy subsystems, the shared demand power is determined sequentially according to the second priority order. The shared demand power is the difference between the installed capacity of the hydrogen production unit and the specified hydrogen production power.

7. The system optimization method according to claim 3, characterized in that, Determining the shared power requirement for each hydrogen production unit based on the specified power demand and the specified hydrogen production power includes: Based on the specified required power and the specified hydrogen production power of each hydrogen production unit, the remaining shared power after sequentially removing the specified hydrogen production power of each hydrogen production unit is determined in a second priority order. If it is determined that the remaining shared power after removing the specified hydrogen production power of the third target hydrogen production unit is greater than the shared demand power of the fourth target hydrogen production unit, the remaining shared power after removing the specified hydrogen production power of the third target hydrogen production unit shall be used as the shared demand power of the fourth target hydrogen production unit.

8. The system optimization method according to claim 3, characterized in that, Determining the target power to be replenished for each of the integrated energy subsystems based on the specified power demand and the shared power demand includes: The difference between the specified required power and the sum of the hydrogen production load power and the shared load power is taken as the required power to be supplemented. The shared load power is used to characterize the sum of the shared required power of all the hydrogen production units in the integrated energy system. The target power to be replenished for each integrated energy subsystem is determined based on the power demand to be replenished and the number of integrated energy subsystems.

9. The system optimization method according to claim 1, characterized in that, Determining the target hydrogen production power of each hydrogen production device based on the target required power includes: Obtain the third priority order and the specified hydrogen production power of the hydrogen production equipment at the highest efficiency point, and determine the first target hydrogen production equipment corresponding to the specified hydrogen production power. The third priority order is used to characterize the order of the hydrogen production equipment from high to low hydrogen production efficiency under specific operating conditions. The target hydrogen production power of each hydrogen production device in the integrated energy system, excluding the first target hydrogen production device, is determined according to the preset adjustment ratio range and the specified hydrogen production power. For each of the integrated energy subsystems, the difference between the target power demand and the specified hydrogen production power is used as the initial surplus power; Based on the initial remaining power and the target hydrogen production power of each hydrogen production device, the remaining hydrogen production power after sequentially removing the target hydrogen production power of each hydrogen production device is determined in accordance with the third priority order. If the remaining hydrogen production power after removing the target hydrogen production power of the second target hydrogen production equipment is less than the target hydrogen production power of the third target hydrogen production equipment, the remaining hydrogen production power after removing the target hydrogen production power of the second target hydrogen production equipment shall be used as the target hydrogen production power of the third target hydrogen production equipment.

10. A system optimization device, characterized in that, Applied to an integrated energy system, the integrated energy system comprising multiple integrated energy subsystems, each integrated energy subsystem including a power supply unit, a thermal storage unit, and a hydrogen production unit, the hydrogen production unit comprising multiple hydrogen production devices, the device comprising: The acquisition module is used to acquire the specified power demand for hydrogen production in the integrated energy system and the actual power generation of each of the power supply units; The first determining module is used to determine the target power demand for hydrogen production in each of the integrated energy subsystems based on the specified power demand and the actual power generation. The second determining module is used to determine the target hydrogen production power of each of the hydrogen production devices based on the target required power. The third determining module is used to determine the target thermal power of the thermal storage unit under the condition of minimizing the operating cost of the integrated energy system and the new energy abandonment rate, based on the target hydrogen production power. An optimization module is used to control the thermal storage unit in the integrated energy system to operate at the target thermal power.

11. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the method according to any one of claims 1-9.

12. An electronic device, characterized in that, include: A memory on which computer programs are stored; A processor for executing the computer program in the memory to implement the steps of the method according to any one of claims 1-9.

13. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 9.

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