Research on Optimal Configuration of User Side Photovoltaic Storage Stations Based on Distributed Photovoltaic Field Data Analysis and Prediction

Installed capacity of Yongchuan Longzhao project is 618.27 kW, and component cleaning work was completed on June 12, 2024. The maximum daily power generation before cleaning was 3337.28 kWh on May 13,2024, and the maximum daily power generation after cleaning was 3671.69 kWh on July 2, 2024. The following is comparison of the best historical power generation data curves before and after cleaning. The installed capacity of the Yubei Xingfu project is 199.64 kW. The component cleaning work was completed on May 16, 2024. The maximum daily power generation before cleaning was 830.6 kWh on April 28, 2024, and the maximum daily power generation after cleaning was 1272.6 kWh on July 2, 2024. The three-dimensional volume formed under the three-dimensional surface is the monthly power generation of the photovoltaic power station. Taking the power generation curve of a certain day within 30 days as an example, multiply the power generation at each moment by (5/60) coefficient, and then perform a superposition operation to obtain the daily power generation degree. Based on the power curve data on June 2nd, the daily power generation is calculated to be 308.2 degrees, and the measured value at the metering end is 310 degrees. Using this method, the total power generation for June 30th was calculated to be 37324 kWh, with a measured value of 37454 kWh, resulting in a revenue of 37454 yuan. The Dazu Wanyuhong Photovoltaic Power Station (with capacity of 503.94 kWp) generates 74.3 hours of full capacity electricity in 30 days based on its capacity. Based on smooth load characteristic curve of Meijie Company, it is recommended that the optimal installed capacity of photovoltaic be around 900–1000 KWp, with an internal rate of return of 9.93 % and an investment payback period of 10.02 years.