Two-stage photovoltaic output identification method and device, and storage medium

• Main Authors: ZHANG YAJUN, YANG XIU, FENG YUYAO, LI WENHAO, KIM WOOK, XIONG XUEJUN
• Format: Patent
• Language: Chinese; English
• Published: 08.12.2023
• Subjects: CALCULATING; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; GENERATION; PHYSICS; SYSTEMS FOR STORING ELECTRIC ENERGY; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention relates to a two-stage photovoltaic output identification method and device, and a storage medium, and the method comprises the following steps: carrying out the iterative training of a WGAN model based on an obtained historical load sample before distributed photovoltaic access; based on the trained WGAN model, a net load sample after distributed photovoltaic access and a context loss function, performing iterative optimization on a noise vector, generating an actual load sample, and completing rough identification; based on an actual load sample, selecting users with similar net loads at night, calculating a photovoltaic output difference value, constructing an optimization target based on a relation that a photovoltaic output ratio is the same as a photovoltaic capacity, performing iterative optimization on a noise vector again, obtaining a final actual load sample including photovoltaic output information, and completing fine identification. Compared with the prior art, the method does not n