Power distribution network load state estimation method and system

CN119298076AActive Publication Date: 2025-01-10HUNAN VOCATIONAL INST OF TECH
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Patent Information

Application Number
CN202411818615.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-01-10
Estimated Expiration
2044-12-11

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Abstract

The invention relates to the technical field of power distribution network load state estimation, in particular to a power distribution network load state estimation method and system. The method comprises the following step of realizing power distribution network load state estimation by comprehensively analyzing the power distribution network load state, transformer load change, voltage potential difference and thermal runaway risk. Firstly, load log data of the power distribution network is obtained, and a node conduction path is marked; thirdly, transformer load change data are extracted, non-uniform voltage potential difference simulation is carried out, and the thermal runaway risk probability between different nodes is estimated; then, defining a conduction influence range according to the thermal runaway risk probability data, and dividing risk grades; and finally, constructing a load state estimation model by using a strategy gradient algorithm, and uploading the load state estimation model to a cloud platform for execution. According to the method, the power distribution network load state estimation technology is optimized, so that the power distribution network load state estimation technology is more perfect.
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