Photovoltaic power generation capacity/power prediction device

Abstract

The invention discloses a photovoltaic power generation capacity/power prediction device which comprises a monitoring system, a data reading module, a data base, a data processing module, a weather information processing module and a prediction module. The data reading module reads photovoltaic power station data information monitored by the monitoring system in real time. The data base stores data information needed by prediction. The data processing module performs classification and classification result assessment on historical power generation capacity/power data and various weather data in the data base in a fuzzy cluster analysis method to obtain a similar day sample set. The weather information processing module processes weather forecast data. The prediction module comprises a BP prediction sub module, a grey prediction sub module and a support vector machine prediction sub module, and prediction results of all the prediction sub modules are combined to obtain the final prediction result. The photovoltaic power generation capacity/power prediction device combines functions of information monitoring and prediction to obtain the prediction result and provides a complete technical solution.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic power generation, and relates to a photovoltaic power generation amount / power generation prediction device. Background technique [0002] Solar photovoltaic power generation is a form of power generation that uses the photovoltaic effect of solar cells to directly convert solar radiation energy into electrical energy. Solar energy is an inexhaustible renewable energy for human beings. It has sufficient cleanliness, absolute safety, relative extensiveness, long life and maintenance-free, resource adequacy and potential economy. It has an important position in the long-term energy strategy. With the increasingly serious problems of global energy shortage and environmental pollution, solar photovoltaic power generation has become an emerging industry that is widely concerned and focused on development because of its clean, safe, convenient, and high-efficiency characteristics. However, since p...

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Problems solved by technology

However, since photovoltaic power generation only generates power during the day, is greatly affected by weather changes, and has low capacity and time reliability, the output power of photovoltaic power generation has the characteristics of strong changes and intermittent characteristics, and it cannot be used like thermal power and hydropowe

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