Intelligent charging and discharging control method, controller and system for smooth photovoltaic power generation

• Main Authors: LIN YUQING, DAI ERGANG, YANG FENGWEN, WANG KUN, YAN CHONGYANG, LI SEN, LI XIANDA, LI GUOLIANG, YANG BIN, LI KE, SUN SHOUWEN
• Format: Patent
• Language: Chinese; English
• Published: 25.06.2024
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention belongs to the field of battery charging and discharging, and provides an intelligent charging and discharging control method for smooth photovoltaic power generation, a controller and a control system.The intelligent charging and discharging control method for smooth photovoltaic power generation comprises the steps that the irradiance of a future set time period is predicted based on historical irradiance and weather data; obtaining a solar photovoltaic power prediction value according to the predicted irradiance of a future set time period; determining whether there is a ramp event exceeding an allowable ramp rate limit based on the derivative of the solar photovoltaic power prediction value; when there is a ramp event exceeding an allowable ramp rate limit, determining the number of cells that must be activated to be in a charging mode according to a comparison structure of the solar photovoltaic power prediction value and the remaining energy of each cell; wherein all the battery units form