Maximum power output forecasting method based on clearance model for photovoltaic plant

• Main Authors: FENG SHUANGLEI, WANG WEISHENG, LU JING, LIU CHUN, YANG HONGYING, CHE JIANFENG, HU JU, WANG XIAORONG, WANG BO
• Format: Patent
• Language: Chinese; English
• Published: 02.10.2013
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention belongs to the technical field of photovoltaic power generation and distribution and particularly relates to a maximum power output forecasting method based on a clearance model for a photovoltaic plant. The method comprises the following steps: (1) respectively calculating the direct radiation irradiance reaching the ground and the scattering irradiance reaching the ground; (2) calculating the irradiance reaching the ground under the clearance condition; (3) calculating the effective irradiance of a single battery board in the photovoltaic plant; (4) determining the maximum power output of the photovoltaic plant. The method provides the generally applicable calculation method for the theoretic maximum power output of the photovoltaic plant without the need of historical data fitting, draws the inclined angle of the photovoltaic cell into consideration and is generally used for fixedly-mounted photovoltaic plants.