Local autonomous regulation and control method for distributed photovoltaic power supply and related device

• Main Authors: ZHANG ZHIHUA, LIU JIAN, AKIZAWA KAI, LI SHI, SI WEIBIN, LEI YUHANG, WANG LIRONG, DOU MINNA, ZHANG XIAOQING
• Format: Patent
• Language: Chinese; English
• Published: 09.08.2024
• Subjects: CALCULATING; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; COMPUTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; 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 belongs to the technical field of photovoltaic power generation network access regulation and control, and discloses a distributed photovoltaic power supply local autonomous regulation and control method and a related device. Judging whether the grid-connected point voltage exceeds a preset voltage deviation allowable range or not; if yes, executing a preset distributed photovoltaic power supply local autonomous regulation and control task; wherein the preset distributed photovoltaic power supply local autonomous regulation and control task comprises a plurality of rounds of autonomous regulation and control operations; the autonomous regulation and control operation of each round specifically comprises the steps of generating and issuing a regulation and control capacity proportion of the current round to each distributed photovoltaic power supply in the transformer area according to a reactive power output regulation quantity corresponding to the autonomous regulation and control operation of