A distributed photovoltaic scheduling operation method and system based on load clustering

CN115954958BActive Publication Date: 2026-06-19STATE GRID BEIJING ELECTRIC POWER CO +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
STATE GRID BEIJING ELECTRIC POWER CO
Filing Date
2023-02-07
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

After distributed photovoltaic power is connected to the grid in industrial parks, the types and characteristics of loads change frequently. Existing dispatching methods fail to effectively consider the socio-economic impact of the loads, resulting in large fluctuations in grid voltage and power, making it difficult to optimize dispatching.

Method used

A load clustering-based scheduling method is adopted, which classifies and clusters the load using K-means and hierarchical agglomerative clustering algorithms, establishes a load prediction model, sets voltage and power variance thresholds, and combines energy storage to optimize and adjust load and photovoltaic operation data to ensure that voltage and power are within the threshold range.

Benefits of technology

It enables refined regulation of the load side, reduces grid voltage and power fluctuations, optimizes the operation of distributed photovoltaic and energy storage, and improves grid stability and efficiency.

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Abstract

This invention belongs to the field of photovoltaic (PV) dispatching, specifically relating to a distributed PV dispatching operation method and system based on load clustering. Compared with traditional methods, this invention classifies and categorizes the load side, performs periodic predictive modeling and rolling verification, and, combined with the controllable resource level of distributed PV, allows for flexible and refined adjustment of the operating status of other types of loads according to operational needs without affecting the operational performance of high-level sensitive loads. This avoids the voltage and power fluctuations that may occur to the power grid under high-load operation conditions in industrial park power grids, effectively reducing equipment investment costs and bringing good economic benefits.
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