Distributed photovoltaic acquisition point distribution and estimation optimization method based on credible nodes

Abstract

The invention provides a distributed photovoltaic acquisition point distribution and estimation optimization method based on credible nodes, and the method comprises the following steps: calculating the similarity between photovoltaic nodes according to the static data of the distributed photovoltaic nodes in a region; selecting a known credible photovoltaic node as a measurement photovoltaic node, and grouping non-measurement photovoltaic nodes by taking the measurement photovoltaic node as a center according to the similarity; and estimating the output of the non-measurement photovoltaic node according to the actual output, the similarity and the installed capacity of the measurement photovoltaic node. According to the distributed photovoltaic acquisition point distribution and estimation optimization method and system based on credible nodes, the optimal layout of the measurement photovoltaic nodes of the distributed photovoltaic nodes based on the credible photovoltaic nodes is given, the actual output of the measurement photovoltaic nodes and the real-time estimation algorithm of other non-measurement photovoltaic nodes are considered, and the real-time output of the non-measurement photovoltaic nodes in the area can be effectively estimated in real time.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic power generation, and in particular relates to a trusted node-based distributed photovoltaic collection distribution and estimation optimization method. Background technique [0002] With the limitations of conventional energy such as coal, oil, and natural gas and the increasingly prominent environmental problems, new energy sources that are clean, environmentally friendly and renewable have attracted more and more attention. The development of the new energy industry is not only an effective supplement to the entire energy supply system, but also an important measure for environmental governance and ecological protection, and is the ultimate energy choice to meet the sustainable development of human society. Among them, solar energy, which has many advantages such as clean and environmental protection, no pollution, high utilization value and no shortage of resources, has an irreplaceable p...

AI Technical Summary

Problems solved by technology

Although this method can estimate the output of distributed photovoltaic nodes, this method not only needs to rely on meteorological monitoring equipment, but also collects the panel temperature and solar radiation values ​​of virtual centralized photovoltaic nodes, and also predicts solar irradiance and temperature value, there are problems that require additional meteorological monitoring equipment and have complex calculation methods

The other is a distributed photovoltaic irradiance measurement and distribution method based on compressed sensing technology. The technology sparsely optimizes the polynomial model between the overall output of photovoltaics and the irradiance of each photovoltaic power station in the area, and selects the most representative photovoltaic power station layout measurement. Although this method can reduce redundant measurement points, the compressive sensing technology In practical applications, not only a large amount of data needs to be collected, but also a large amount of sampling resources are wasted in the compression process, and the calculation is complex and time-consuming

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