CN-121998142-A - System optimization method, device, storage medium, electronic equipment and product

CN121998142ACN 121998142 ACN121998142 ACN 121998142ACN-121998142-A

Abstract

The invention relates to a system optimization method, a device, a storage medium, electronic equipment and a product, which are applied to a comprehensive energy system, wherein 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, each hydrogen production unit comprises a plurality of hydrogen production equipment, the method comprises the steps of obtaining actual power generation of each electric energy supply unit of specified required power of the comprehensive energy system, determining target required power of each comprehensive energy subsystem according to the specified required power and the actual power generation, determining target hydrogen production power of each hydrogen production equipment according to the target required power, determining target thermal power of the heat storage unit according to the target hydrogen production power, and controlling the heat storage unit to operate at the target thermal power. Therefore, the performance and the economy of the comprehensive energy system can be effectively improved 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.

Inventors

ZHOU YIPENG
XING XIAOWEN
SUN XUN
Mou Shujun
LIU XUAN

Assignees

国家能源投资集团有限责任公司
北京低碳清洁能源研究院
国华(栖霞)风力发电有限公司

Dates

Publication Date: 20260508
Application Date: 20241101

Claims (13)

1. A system optimization method, characterized by being applied to an integrated energy system, the integrated energy system including a plurality of integrated energy subsystems, the integrated energy subsystem including an electric energy supply unit, a heat storage unit, and a hydrogen production unit, the hydrogen production unit including a plurality of hydrogen production devices, the method comprising: acquiring appointed required power for hydrogen production and actual power generation of each electric energy supply unit in the comprehensive energy system; Determining target required power for hydrogen production in each integrated energy subsystem according to the specified required power and the actual generated power; Determining target hydrogen production power of each hydrogen production device according to the target required power; determining the target thermal power of the heat storage unit under the condition that the running cost of the comprehensive energy system and the new energy waste rate are minimum according to the target hydrogen production power; and controlling the heat storage unit in the comprehensive energy system to operate at the target thermal power.
2. The system optimization method according to claim 1, wherein the determining the target thermal power of the heat storage unit in the case where the operation cost and the new energy reject rate of the integrated energy system are minimum according to the target hydrogen production power comprises: Constructing an objective function according to the target hydrogen production power, the thermal power of the heat storage unit, the operation cost of the comprehensive energy system and the new energy waste rate, wherein the objective function is used for representing the corresponding relation between the operation cost of the comprehensive energy system and the new energy waste rate and the thermal power of the heat storage unit under the condition that the hydrogen production power of each hydrogen production device is the target hydrogen production power; and acquiring an optimal solution of the thermal power of the heat storage unit when the running cost of the comprehensive energy system and the new energy waste rate are minimum under the preset constraint condition of the objective function, and taking the optimal solution as the objective thermal power.
3. The system optimization method of claim 1, wherein said determining a target required power for hydrogen production in each of said integrated energy subsystems based on said specified required power and said actual generated power comprises: Determining the appointed hydrogen production power of each hydrogen production unit according to the actual power generation, and determining the hydrogen production load power of the comprehensive energy system, wherein the hydrogen production load power is used for representing the sum of the appointed hydrogen production powers of all the hydrogen production units in the comprehensive energy system; Under the condition that the appointed required power is determined to be larger than the hydrogen production load power, determining the shared required power of each hydrogen production unit according to the appointed required power and the appointed hydrogen production power; determining a target power to be supplemented of each integrated energy subsystem according to the specified required power and the shared required power under the condition that the specified required power is determined to be larger than the sum of the shared required power and the hydrogen production load power; and taking the sum of the target power to be supplemented, the shared required power and the specified hydrogen production power as the target required power for each comprehensive energy subsystem.
4. The system optimization method as set forth in claim 3, wherein said determining a specified hydrogen production power for each of said hydrogen production units based on said actual generated power comprises: acquiring the installed capacity of each hydrogen production unit; if the actual power is determined to be greater than the installed capacity, taking the installed capacity as the specified hydrogen production power; And if the actual power is determined to be smaller than the installed capacity, taking the actual power as the specified hydrogen production power.
5. The system optimization method as set forth in claim 3, wherein said determining a specified hydrogen production power for each of said hydrogen production units based on said actual generated power, further comprises: determining a first priority order according to the actual power of each electric energy supply unit; Determining residual hydrogen production power after the specified hydrogen production power of each hydrogen production unit is removed in sequence according to the specified required power and the specified hydrogen production power of each hydrogen production unit and the first priority order; If the residual hydrogen production power after the specified hydrogen production power of the first target hydrogen production unit is removed is smaller than the specified hydrogen production power of the second target hydrogen production unit, taking the residual hydrogen production power after the specified hydrogen production power of the first target hydrogen production unit is removed as the specified hydrogen production power of the second target hydrogen production unit.
6. The system optimization method of claim 3, wherein determining the shared demand power for each of the hydrogen generating units based on the specified demand power and the specified hydrogen generating power comprises: Determining a second priority order according to the utilization rate of each hydrogen generating set; And for each comprehensive energy subsystem, determining the shared required power in sequence according to the second priority order, wherein the shared required power is the difference value between the installed capacity of the hydrogen production unit and the specified hydrogen production power.
7. The system optimization method of claim 3, wherein determining the shared demand power for each of the hydrogen generating units based on the specified demand power and the specified hydrogen generating power comprises: Determining residual shared power after the specified hydrogen production power of each hydrogen production unit is removed in sequence according to the specified required power and the specified hydrogen production power of each hydrogen production unit and the second priority order; and if the residual shared power after the specified hydrogen production power of the third target hydrogen production unit is removed is determined to be larger than the shared demand power of the fourth target hydrogen production unit, taking the residual shared power after the specified hydrogen production power of the third target hydrogen production unit is removed as the shared demand power of the fourth target hydrogen production unit.
8. The system optimization method of claim 3, wherein determining the target power to be replenished for each of the integrated energy subsystems based on the specified required power and the shared required power comprises: Taking the difference value of the specified required power and the sum of the hydrogen production load power and the shared load power as required power to be supplemented, wherein the shared load power is used for representing the sum of the shared required power of all hydrogen production units in the comprehensive energy system; and determining the target power to be supplemented of each integrated energy subsystem according to the required power to be supplemented and the number of the integrated energy subsystems.
9. The system optimization method of claim 1, wherein said determining a target hydrogen production power for each of said hydrogen production plants based on said target demand power comprises: Acquiring a third priority order and the specified hydrogen production power of the hydrogen production equipment at the highest efficiency point, and determining a first target hydrogen production equipment corresponding to the specified hydrogen production power, wherein the third priority order is used for representing the order of the hydrogen production equipment with high hydrogen production efficiency from high to low hydrogen production efficiency under specific running conditions; determining target hydrogen production power of each hydrogen production device except the first target hydrogen production device in the comprehensive energy system according to a preset adjustment proportion interval and the specified hydrogen production power; Taking the difference value between the target required power and the specified hydrogen production power as initial residual power for each comprehensive energy subsystem; determining residual hydrogen production power after the target hydrogen production power of each hydrogen production device is removed in sequence according to the initial residual power and the target hydrogen production power of each hydrogen production device and the third priority order; And under the condition that the residual hydrogen production power after the target hydrogen production power of the second target hydrogen production equipment is removed is smaller than the target hydrogen production power of the third target hydrogen production equipment, taking the residual hydrogen production power after the target hydrogen production power of the second target hydrogen production equipment is removed as the target hydrogen production power of the third target hydrogen production equipment.
10. A system optimization device, characterized by being applied to an integrated energy system, the integrated energy system including a plurality of integrated energy subsystems, the integrated energy subsystem including an electric energy supply unit, a heat storage unit, and a hydrogen production unit, the hydrogen production unit including a plurality of hydrogen production devices, the device comprising: The acquisition module is used for acquiring the appointed required power for hydrogen production in the comprehensive energy system and the actual power generation power of each electric energy supply unit; the first determining module is used for determining target required power for hydrogen production in each integrated energy subsystem according to the specified required power and the actual generated power; the second determining module is used for determining target hydrogen production power of each hydrogen production device according to the target required power; The third determining module is used for determining the target thermal power of the heat storage unit under the condition that the running cost of the comprehensive energy system and the new energy waste rate are minimum according to the target hydrogen production power; And the optimizing module is used for controlling the heat storage unit in the comprehensive energy system to operate at the target thermal power.
11. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor performs the steps of the method according to any of claims 1-9.
12. An electronic device, comprising: A memory having a computer program stored thereon; A processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1-9.
13. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any one of claims 1-9.

Description

System optimization method, device, storage medium, electronic equipment and product Technical Field The disclosure relates to the technical field of power, in particular to a system optimization method, a system optimization device, a storage medium, electronic equipment and a product. Background The comprehensive energy system organically combines various energy sources such as fossil fuel, electric power, fuel gas, heat/cold, hydrogen, renewable energy sources and the like with various social public services, realizes the comprehensive system with multi-energy complementation, high-efficiency energy utilization, user energy cascade and convenience of social public services through the optimal scheduling in the system, brings revolutionary changes to energy management and utilization, and promotes the sustainable development of the economic society. However, the comprehensive energy system in the prior art still has the problems of low utilization rate of renewable energy sources and high operation and maintenance cost. Disclosure of Invention To overcome the problems in the related art, the present disclosure provides a system optimization method, apparatus, storage medium, electronic device, and product. In order to achieve the above object, the present disclosure provides a system optimization method applied to an integrated energy system including a plurality of integrated energy subsystems including an electric power supply unit, a heat storage unit, and a hydrogen production unit including a plurality of hydrogen production devices, the method comprising: acquiring appointed required power for hydrogen production and actual power generation of each electric energy supply unit in the comprehensive energy system; Determining target required power for hydrogen production in each integrated energy subsystem according to the specified required power and the actual generated power; Determining target hydrogen production power of each hydrogen production device according to the target required power; determining the target thermal power of the heat storage unit under the condition that the running cost of the comprehensive energy system and the new energy waste rate are minimum according to the target hydrogen production power; and controlling the heat storage unit in the comprehensive energy system to operate at the target thermal power. Optionally, the determining, according to the target hydrogen production power, the target thermal power of the heat storage unit under the condition that the running cost and the new energy abandoning rate of the integrated energy system are minimum includes: Constructing an objective function according to the target hydrogen production power, the thermal power of the heat storage unit, the operation cost of the comprehensive energy system and the new energy waste rate, wherein the objective function is used for representing the corresponding relation between the operation cost of the comprehensive energy system and the new energy waste rate and the thermal power of the heat storage unit under the condition that the hydrogen production power of each hydrogen production device is the target hydrogen production power; and acquiring an optimal solution of the thermal power of the heat storage unit when the running cost of the comprehensive energy system and the new energy waste rate are minimum under the preset constraint condition of the objective function, and taking the optimal solution as the objective thermal power. Optionally, the determining the target required power for hydrogen production in each integrated energy subsystem according to the specified required power and the actual generated power includes: Determining the appointed hydrogen production power of each hydrogen production unit according to the actual power generation, and determining the hydrogen production load power of the comprehensive energy system, wherein the hydrogen production load power is used for representing the sum of the appointed hydrogen production powers of all the hydrogen production units in the comprehensive energy system; Under the condition that the appointed required power is determined to be larger than the hydrogen production load power, determining the shared required power of each hydrogen production unit according to the appointed required power and the appointed hydrogen production power; determining a target power to be supplemented of each integrated energy subsystem according to the specified required power and the shared required power under the condition that the specified required power is determined to be larger than the sum of the shared required power and the hydrogen production load power; and taking the sum of the target power to be supplemented, the shared required power and the specified hydrogen production power as the target required power for each comprehensive energy subsystem. Optionally, the determining the specified hydrogen production power of each hydro