Dispersed resource cluster division method based on comprehensive performance indexes

Abstract

The invention discloses a dispersed resource cluster division method based on comprehensive performance indexes, and belongs to the technical field of resource cluster division. A global density quality function is selected as a structure index to quantify viewpoints commonly held by community partitions; providing an inconsistency coefficient to describe the output change trend inconsistency among the scattered resources in the cluster; a node membership index is proposed to judge the reasonability of the scale of each sub-cluster after cluster division; providing a comprehensive performance index by combining the global density quality function, the inconsistency coefficient and the weight of the node membership index; and according to the comprehensive performance indexes, performing cluster division by adopting an FN algorithm. According to the method, the reasonability of the cluster division result is ensured, the community partitioning algorithm is introduced through the community partitioning theory, the community partitioning algorithm has the advantage that the optimal number of partitions can be automatically generated without being set in advance, and the timeliness of cluster division can be ensured while the optimal cluster division result is ensured.

Description

technical field [0001] A distributed resource cluster division method based on comprehensive performance indicators belongs to the technical field of resource cluster division. Background technique [0002] With the development of renewable energy power generation technology in China, vigorously developing renewable resources such as photovoltaics has become an important measure to promote energy structure adjustment in my country. my country announced that it will strive to achieve the peak of carbon emissions by 2030 and the vision of achieving carbon neutrality by 2060, which puts forward higher requirements for the low-carbon transformation of energy and power. [0003] Usually, in a distribution network with distributed resources for power generation, distributed power sources tend to have small single-machine capacity and large overall scale, and the access methods of each power source are diverse and the access nodes are relatively scattered. If the microgrid or cent...

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Problems solved by technology

The establishment of such indicators is mostly related to the grid structure and network parameters, and is more suitable for distribution networks with a small proportion of distributed power installations. However, when the proportion of distributed power installations gradually increases, especially distributed power gradually participates in distribution networks. During the operation and dispatch of the power grid, the location, capacity and voltage regulation capability of distributed power sources will affect the voltage control and dispatch of the distribution network. At this time, it will no longer be reasonable to divide the clusters based on the electrical distance that reflects the network structure and operating parameters.

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