Method for calculating maximum admitting ability for photovoltaic power generation in distribution network with different voltage regulation strategies being considered

• Main Authors: WANG ZHIQIANG, TIAN XUEFENG, XIE JIANG, XU HUITING, HOU YUXIN, GUO CHENYANG, WANG SHU
• Format: Patent
• Language: Chinese; English
• Published: 05.01.2018
• 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; 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 discloses a method for calculating the maximum admitting ability for photovoltaic power generation in a distribution network with different voltage regulation strategies being consideredin the field of distribution network operation control. The method comprises the steps of analyzing a voltage regulating method in which photovoltaic power stations participate, and proposing voltagecontrol strategies of a photovoltaic inverter when being in different control modes; building a photovoltaic power generation maximum admitting ability model taking the maximum photovoltaic power admitting capacity as an objective function and taking qualified voltage deviation and qualified line capacity as constraint conditions; and solving the maximum access capacity of a photovoltaic power supply by applying a heuristic algorithm. The traditional voltage regulating method at present cannot completely effectively and economically solve a problem of voltage rising at a grid connection point, so that the method is pr