Photovoltaic power quality monitoring method, system and device and storage medium

By obtaining data from the photovoltaic power generation system and user terminal, predicting the change trend of power generation and power load, determining the power deviation value of the power grid and formulating a adjustment plan, the power quality problem of the photovoltaic power generation system and the power grid are solved, and the stable operation of the power grid and the timeliness of power regulation are achieved.

CN119726803AActive Publication Date: 2025-03-28NANJING HUIQIANG NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202411859764.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-03-28
Estimated Expiration
2044-12-17

AI Technical Summary

Technical Problem

The interconnection of photovoltaic power generation systems and the power grid has power quality problems, which leads to unstable grid voltage and frequency, and may even cause large-scale power outages. The passive monitoring and regulation response of the prior art is lagging, making it difficult to deal with power fluctuations in a timely manner, resulting in frequent oscillations of the power grid.

Method used

By obtaining environmental information and historical operation data of the photovoltaic power generation system, we predict the change trend of power generation, and combining the real-time power consumption data and historical power consumption data of the user side, we predict the change trend of power load, determine the power deviation value of the power grid, and formulate a corresponding power adjustment plan.

Benefits of technology

Accurate prediction of photovoltaic power generation systems and user loads is achieved, the power deviation value of the power grid is determined in advance, and the adjustment plan is formulated in a timely manner, which avoids the lag of traditional passive monitoring methods and reduces the power oscillation of the power grid.

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Abstract

The invention provides a photovoltaic power quality monitoring method, system and device and a storage medium, and relates to the technical field of power quality monitoring, and the method comprises the steps: predicting the initial change trend of the power generation amount of a photovoltaic power generation system within a preset time period according to the historical operation data of the photovoltaic power generation system; according to the environment information of the photovoltaic power generation system, adjusting the initial change trend, and generating a first change trend of the generating capacity of the photovoltaic power generation system within a preset duration; acquiring real-time power consumption data and historical power consumption data of the user side, and predicting a second change trend of the power consumption load of the user side within a preset duration by combining the real-time power consumption data and the historical power consumption data; and according to the first change trend and the second change trend, determining a power deviation value of the power grid within a preset duration, and according to the power deviation value, generating a power regulation plan of the power grid. The method has the technical effects that the power fluctuation of the photovoltaic power generation system and the user load is timely dealt with, and the power oscillation of the power grid is reduced.
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