CN-121980719-A - Topology construction method of hydrogen storage system and related equipment

CN121980719ACN 121980719 ACN121980719 ACN 121980719ACN-121980719-A

Abstract

The application provides a topology construction method of a hydrogen storage system and related equipment. The topology construction method comprises the steps of determining a node set of a hydrogen storage system, wherein the node set comprises a hydrogen storage tank, a manifold and an interface, generating candidate connecting lines among the nodes based on the node set, wherein the candidate connecting lines meet the following constraint conditions of the hydrogen storage system, namely capacity, pressure and manifold concentration, the candidate connecting lines are related to interface configuration information and leakage risk weight, namely generating a candidate topology based on the candidate connecting lines and a topology generation rule, and determining a target topology based on budget constraint of the hydrogen storage system and leakage risk of the candidate topology. The technical scheme provided by the application can reduce the leakage risk of the hydrogen storage system and improve the energy storage efficiency and the safety performance.

Inventors

Bai Ruikai
ZHU YIXIN
Qu Qicheng
CHEN KUNPENG

Assignees

上能电气股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260113

Claims (10)

1. A method of topology construction of a hydrogen storage system, the method comprising: determining a node set of the hydrogen storage system, wherein the nodes comprise a hydrogen storage tank, a manifold and an interface; Generating candidate connecting lines among the nodes based on the node set, wherein the candidate connecting lines meet the following constraint conditions of capacity, pressure and manifold concentration of the hydrogen storage system, and the candidate connecting lines are related to interface configuration information and leakage risk weight: generating a candidate topology based on the candidate connection and a topology generation rule; a target topology is determined based on budget constraints of the hydrogen storage system and leakage risk of the candidate topology.
2. The topology construction method of claim 1, wherein the generating candidate links between the nodes based on the set of nodes comprises: determining the distribution position of the hydrogen storage tank node according to the constraint conditions of the capacity and the pressure; Determining the distribution position of the manifold node according to the constraint condition of the manifold concentration; And generating the candidate connecting line based on the distribution position of the hydrogen storage tank node and the distribution position of the manifold node.
3. The topology construction method of claim 2, wherein the capacity constraint comprises a sum of hydrogen storage tank volumes corresponding to the hydrogen storage tank nodes being equal to a total volume of the hydrogen storage system, the hydrogen storage tank volume corresponding to each of the hydrogen storage tank nodes satisfying a manufacturing requirement.
4. The topology construction method of claim 2 or 3, wherein the constraint condition of the pressure comprises an operating pressure of the hydrogen storage system being within a preset interval, a pressure level of the hydrogen storage tank node and the interface node being adapted to the operating pressure.
5. The topology construction method of claim 1, wherein the topology generation rules include a least number of interfaces principle and a shortest path principle.
6. The topology construction method of claim 5, wherein said generating a candidate topology based on said candidate wiring and topology generation rules comprises: Selecting a target connecting line from the candidate connecting lines based on the interface quantity minimum principle; Optimizing the layout of the target connecting lines based on the path shortest principle, and generating the candidate topology.
7. The topology construction method of claim 1, wherein the determining a target topology based on budget constraints of the hydrogen storage system and leakage risk of the candidate topology comprises: Determining a first topology, wherein the first topology is a topology of which the cost accords with the budget constraint in the candidate topologies; And determining the target topology based on the first topology, wherein the target topology is the topology with the lowest leakage risk in the first topology.
8. The topology construction method of claim 7, wherein the leak rate of the individual interfaces satisfies the following relationship with the operating pressure, temperature and time of the hydrogen storage system: Li(P,T,t)=Ci×f(P)×g(T)×h(t) f(P)=(P/P_ref) b_p g(T)=e [E_a/R×(1/T_ref-1/T)] h(t)=1+γ*N δ Wherein Li (P, T, T) is the leakage rate of a single interface, ci is an interface characteristic coefficient, f (P) is used for representing the influence of pressure on the leakage rate, g (T) is used for representing the influence of temperature effect on the leakage rate, h (T) is used for representing the ageing characteristic of material ageing and cyclic load, P is the operating pressure of the hydrogen storage system, P_ref is reference pressure, b_p is a pressure index, T is the temperature, T_ref is a reference temperature, E_a is apparent activation energy, R is a gas constant, N is a cycle number, gamma is a fatigue damage coefficient, and delta is a fatigue index.
9. A computer readable medium, characterized in that the computer readable medium stores a program code for computer execution, the program code comprising instructions for performing the method of any of claims 1 to 8.
10. A computer program product comprising computer program code which, when run on a computer, causes the computer to implement the method of any one of claims 1 to 8.

Description

Topology construction method of hydrogen storage system and related equipment Technical Field The invention relates to the technical field of new energy, in particular to a topology construction method of a hydrogen storage system and related equipment. Background Along with the continuous increase of the installed capacity of new energy power generation and the deep promotion of the construction of a novel power system, large-scale hydrogen energy power stations are used as important facilities for adjusting fluctuation and realizing cross-season energy storage, and the large-scale application of the large-scale hydrogen energy power stations has been on schedule. At present, a high-pressure gas hydrogen storage system becomes a main flow hydrogen storage mode in the power station due to a simple structure and relatively low cost. Currently, conventional pressure vessel arrangements are commonly used to design hydrogen storage systems. For example, the number and volume of the gas storage tanks are determined according to the total hydrogen storage amount, the manifolds and valves are arranged according to the process flow, and then the components are connected by adopting standard flanges and welding interfaces, and the strength verification and the safety evaluation of the hydrogen storage system are performed. However, when the hydrogen storage system is designed, only the sealing performance of a single component or interface is concerned, and the leakage risk of the hydrogen storage system is not considered from the system architecture level, so that the accumulated leakage rate of the hydrogen storage system is high under the action of long-term high pressure and cyclic load, and the energy storage efficiency and the safety performance are seriously affected. Disclosure of Invention The invention provides a topology construction method of a hydrogen storage system and related equipment. In a first aspect, the invention provides a topology construction method of a hydrogen storage system, which comprises the steps of determining a node set of the hydrogen storage system, wherein the node set comprises a hydrogen storage tank, a manifold and an interface, generating candidate connecting lines among the nodes based on the node set, wherein the candidate connecting lines meet the following constraint conditions of the hydrogen storage system, namely capacity, pressure and manifold concentration, the candidate connecting lines are related to interface configuration information and leakage risk weight, namely generating a candidate topology based on the candidate connecting lines and a topology generation rule, and determining a target topology based on budget constraint of the hydrogen storage system and leakage risk of the candidate topology. With reference to the first aspect, in a possible implementation manner, the generating the candidate connection line between the nodes based on the node set includes determining a distribution position of the hydrogen storage tank node according to the constraint condition of the capacity and the pressure, determining a distribution position of the manifold node according to the constraint condition of the manifold concentration, and generating the candidate connection line based on the distribution position of the hydrogen storage tank node and the distribution position of the manifold node. With reference to the first aspect, in a possible implementation manner, the constraint condition of the capacity includes that the sum of the volumes of the hydrogen storage tanks corresponding to the hydrogen storage tank nodes is equal to the total volume of the hydrogen storage system, and the volume of the hydrogen storage tank corresponding to each hydrogen storage tank node meets manufacturing requirements. With reference to the first aspect, in a possible implementation manner, the constraint condition of the pressure includes that the operating pressure of the hydrogen storage system is within a preset interval, and the pressure levels of the hydrogen storage tank node and the interface node are adapted to the operating pressure. With reference to the first aspect, in a possible implementation manner, the topology generation rule includes an interface number minimum principle and a path shortest principle. With reference to the first aspect, in a possible implementation manner, the generating a candidate topology based on the candidate connection lines and the topology generating rule includes selecting a target connection line from the candidate connection lines based on the interface number minimum principle, optimizing a layout of the target connection line based on the path minimum principle, and generating the candidate topology. With reference to the first aspect, in a possible implementation manner, the determining a target topology based on the budget constraint of the hydrogen storage system and the leakage risk of the candidate topology includes determining