Distributed photovoltaic electricity-stealing supervising method based on multi-time scale output estimation

Abstract

The present invention discloses a distributed photovoltaic electricity-stealing supervising method based on multi-time scale output estimation. The method comprises: first, establishing a photovoltaic output calculation model based on historical statistical data of a power station; by using historical power generation information of the power station and contemporaneous meteorological information, generating a fitting curve of meteorological information and photovoltaic output; loading real-time meteorological information so as to obtain real-time output of the power station; and then based on multi-time scale photovoltaic output estimation, giving out an electricity-stealing identification method with a three-layer screening structure: real-time electricity-stealing estimation, short-term electricity-stealing estimation and medium and long-term electricity-stealing estimation, and giving out a corresponding inspection scheme according to an electricity-stealing suspect determination result. According to the distributed photovoltaic electricity-stealing supervising method based on multi-time scale output estimation, a statistical method is adopted, so that independent modeling of each constituent element of the photovoltaic power station is avoided, a calculation error is small, and model precision is improved; and by designing the three-layer screening structure of electricity-stealing identification, the electricity-stealing identification rate of distributed photovoltaic power generation is greatly improved, evidence is provided for effective supervision of distributed photovoltaic power generation, and the inspection efficiency is improved.

Description

technical field [0001] The invention relates to a distributed photovoltaic stealing supervision method based on multi-time scale output evaluation, and belongs to the technical field of photovoltaic power generation. Background technique [0002] Distributed photovoltaic power generation is mainly used in industrial parks, public commercial facilities and residential buildings. It is of great significance to optimize energy structure, promote energy conservation and emission reduction, and achieve sustainable economic development. It is an effective means to solve energy crisis and environmental problems. [0003] In July 2013, the Ministry of Finance issued the "Notice on Distributed Photovoltaic Power Generation Subsidy Policy and Other Relevant Issues", which clarified the implementation methods of distributed photovoltaic power generation projects according to power subsidy policies. Distributed photovoltaic power generation projects have completed the filing according t...

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Problems solved by technology

At present, the research on anti-stealing technology is mainly carried out for traditional users to steal electricity. The object is focused on the main body of the electric energy meter. Each electric energy meter needs to be equipped with an anti-stealing device, which requires a large amount of engineering and is not effective.

Therefore, the current anti-stealing methods cannot be applied to the anti-stealing of distributed photovoltaic power generation systems.

For the anti-stealing technology of distributed photovoltaic power generation systems, there are still no relevant research results in China

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