CN-122026305-A - Novel power system distributed controllable resource response potential evaluation method and device

CN122026305ACN 122026305 ACN122026305 ACN 122026305ACN-122026305-A

Abstract

The embodiment of the application discloses a method and a device for evaluating response potential of distributed controllable resources of a novel power system, wherein the individual feasible operation domain of each resource is determined according to monitoring data of a plurality of resources in each operation node. And clustering the plurality of resources according to the individual feasible operation domains to obtain the category feasible operation domains. Clustering a plurality of operation nodes in the power system according to the category feasible operation domains included in each operation node, dividing the power system into a plurality of operation areas, and determining the area feasible operation domain corresponding to each operation area. A system operable domain of the power system is determined from the plurality of regional operable domains. And evaluating the response potential of the power system according to the feasible operation domain of the system and the physical constraint condition of the power system to obtain a corresponding system evaluation result. The application can comprehensively evaluate response potential by considering multi-source data, space structure and uncertainty influence to obtain accurate evaluation results.

Inventors

HU SHUBO
FU YAO
QI QUAN
LI PING
ZHANG QIANG
WANG CHAO
ZHI YUANQING
FAN WEI
YANG LUYU
ZHAO QINGSONG
MA XINTONG
GE YANGYANG
XIE BING
HU XUGUANG
ZHANG XIAOTONG
LIU XINRUI
ZHANG CHI
SUN JUNJIE

Assignees

国网辽宁省电力有限公司电力科学研究院
东北大学

Dates

Publication Date: 20260512
Application Date: 20251205

Claims (10)

1. A method of evaluating the response potential of a distributed controllable resource of a novel power system, for a power system comprising a plurality of operational nodes, the method comprising: determining an individual feasible operation domain of each resource according to the monitoring data of a plurality of resources in each operation node; clustering a plurality of resources according to the individual feasible operation domains to obtain category feasible operation domains; Clustering a plurality of operation nodes in the power system according to the category feasible operation domain included in each operation node, dividing the power system into a plurality of operation areas, and determining the area feasible operation domain corresponding to each operation area; determining a system feasible operation domain of the power system according to the plurality of regional feasible operation domains; and evaluating the response potential of the power system according to the feasible operation domain of the system and the physical constraint condition of the power system to obtain a corresponding system evaluation result.
2. The method of claim 1, wherein said determining an individual feasible operational domain for each of said resources based on monitoring data for a plurality of resources in each operational node comprises: According to the monitoring data of a plurality of resources in each operation node, determining a center vector and a generation matrix of the resources; And generating an individual feasible operation domain of each resource by taking the center vector of each resource as a center vector and the generation matrix as a generation direction.
3. The method of claim 1, wherein clustering the plurality of resources according to the individual feasible operation domains to obtain a category feasible operation domain comprises: determining corresponding individual feature vectors according to the monitoring data of each resource in each operation node; clustering a plurality of individual feature vectors in one operation node to obtain at least one resource cluster and a cluster-level feature set corresponding to each resource cluster; And performing Minkowski sum operation on individual feasible operation domains of a plurality of resources included in each resource cluster to obtain a category feasible operation domain corresponding to the resource cluster.
4. The method according to claim 3, wherein the clustering the plurality of operation nodes in the power system according to the category feasible operation domains included in each operation node, dividing the power system into a plurality of operation areas, and determining the area feasible operation domain corresponding to each operation area includes: Performing Minkowski sum operation on the category feasible operation domains included in each operation node to obtain a node feasible operation domain corresponding to the operation node; determining a power grid graph according to a plurality of operation nodes and the connection relation between the operation nodes; Clustering the plurality of operation nodes according to the power grid graph to obtain at least one operation region consisting of a plurality of operation nodes with connection relations; And carrying out Minkowski sum operation on the feasible operation domains of the operation nodes included in each operation area to obtain the area feasible operation domain corresponding to the operation area.
5. The method of claim 4, wherein clustering the plurality of operation nodes according to the grid graph to obtain at least one operation region comprising a plurality of operation nodes having a connection relationship comprises: determining the characteristics of the operation node according to the cluster-level characteristic set corresponding to each resource cluster in the operation node; Calculating the distances of different operation nodes in the power grid graph according to the characteristics of each operation node; And clustering the nodes according to the connection relation of different operation nodes in the power grid graph and the distance between the different operation nodes to obtain at least one operation area consisting of a plurality of operation nodes with the connection relation.
6. The method of claim 1, wherein the determining a system feasible operation domain of the power system from the plurality of regional feasible operation domains comprises: Performing Minkowski sum operation on regional feasible operation domains included in the power system to obtain candidate feasible operation domains of the power system; And carrying out compression mapping on the candidate feasible operation domains according to a preset reduced order operator to obtain the system feasible operation domains of the electric power system.
7. The method of claim 1, wherein the evaluating the response potential of the power system based on the system feasible operational domain and the physical constraints of the power system to obtain the corresponding system evaluation result comprises: correcting the feasible operation domain of the system according to the physical constraint condition of the power system; Embedding a preset distribution uncertainty set into the corrected system feasible operation domain to obtain a robust feasible domain; calculating a fast adjustable capacity and ramp rate, duration and cost, and seasonal resource availability according to the robust feasible region and the monitored data; and determining a system evaluation result of the power system according to the quick adjustable capacity and the climbing rate, the duration and the cost and the seasonal resource availability.
8. A novel distributed controllable resource response potential assessment device for a power system comprising a plurality of operational nodes, the device comprising: the first modeling module is used for determining an individual feasible operation domain of each resource according to the monitoring data of a plurality of resources in each operation node; The second modeling module is used for clustering a plurality of resources according to the individual feasible operation domains to obtain category feasible operation domains; The third modeling module is used for clustering a plurality of operation nodes in the power system according to the category feasible operation domains included in each operation node, dividing the power system into a plurality of operation areas and determining the area feasible operation domain corresponding to each operation area; a fourth modeling module configured to determine a system feasible operation domain of the power system according to the plurality of regional feasible operation domains; and the system evaluation module is used for evaluating the response potential of the power system according to the system feasible operation domain and the physical constraint condition of the power system to obtain a corresponding system evaluation result.
9. An electronic device comprising a memory and a processor, the memory storing a computer program executable on the processor, characterized in that the processor implements the steps of the method of any of claims 1 to 7 when the program is executed.
10. A computer readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the method according to any one of claims 1 to 7.

Description

Novel power system distributed controllable resource response potential evaluation method and device Technical Field The embodiment of the application relates to the field of power systems, in particular to a method and a device for evaluating response potential of distributed controllable resources of a novel power system. Background As the installed scale of new energy continues to expand, the operating characteristics of power systems are evolving from centralized regulation to distributed, flexible and intelligent. Controllable resources such as distributed wind power, photovoltaic, energy storage, adjustable load and the like are distributed in multiple points in space, have strong volatility and randomness in time, and the response behavior of the controllable resources is influenced by factors such as weather, equipment constraint, network coupling and the like. This heterogeneous nature of multiple time-space scales makes the overall operational flexibility and regulatory potential assessment of the power system increasingly complex. Existing research focuses mainly on flexibility quantification at the resource characteristic modeling or aggregation level, and systemization and verifiability of an evaluation process are often ignored. The traditional method is mostly based on a single time scale or a single type of resource, and flexibility indexes are obtained through linear superposition or statistical estimation, so that spatial correlation and constraint coupling among distributed resources are difficult to reflect, and evaluation consistency cannot be maintained among different levels. The lack of a comprehensive evaluation method capable of considering multi-source data, spatial structure and uncertainty influence becomes a key bottleneck for flexible analysis and regulation decision of a novel power system. Disclosure of Invention In view of the above, the method and the device for evaluating the response potential of the distributed controllable resources of the novel power system provided by the embodiment of the application can comprehensively evaluate the response potential by considering the multi-source data, the spatial structure and the uncertainty influence, and obtain an accurate evaluation result. The method and the device for evaluating the response potential of the distributed controllable resources of the novel power system are realized as follows: In one aspect of the embodiments of the present application, a method for evaluating response potential of a distributed controllable resource of a novel power system is provided, where the method is used for a power system including a plurality of operation nodes, and includes: Determining an individual feasible operation domain of each resource according to the monitoring data of a plurality of resources in each operation node; clustering a plurality of resources according to the individual feasible operation domains to obtain category feasible operation domains; clustering a plurality of operation nodes in the power system according to the category feasible operation domains included in each operation node, dividing the power system into a plurality of operation areas, and determining the area feasible operation domain corresponding to each operation area; Determining a system feasible operation domain of the power system according to the plurality of regional feasible operation domains; and evaluating the response potential of the power system according to the feasible operation domain of the system and the physical constraint condition of the power system to obtain a corresponding system evaluation result. In one possible implementation, determining an individual feasible operational domain for each resource based on the monitored data for the plurality of resources in each operational node includes: According to the monitoring data of a plurality of resources in each operation node, determining a center vector and a generation matrix of the resources; and generating an individual feasible running domain of the resource by taking the center vector of each resource as a center vector and the generation matrix as a generation direction. In one possible implementation, clustering a plurality of resources according to an individual feasible operation domain to obtain a category feasible operation domain includes: Determining corresponding individual feature vectors according to the monitoring data of each resource in each operation node; clustering a plurality of individual feature vectors in an operation node to obtain at least one resource cluster and a cluster-level feature set corresponding to each resource cluster; and carrying out Minkowski sum operation on individual feasible operation domains of a plurality of resources included in each resource cluster to obtain a category feasible operation domain corresponding to the resource cluster. In one possible implementation manner, clustering a plurality of operation nodes in the p