High-proportion new energy reactive voltage regulation control method based on multistage coordination

• Main Authors: SUN CHAOXIA, JI YAWEN, LIU JIBING, LENG SHUANG, JIA YAOKUN, AI XINQI, ZOU MINGJI, ZHANG DENGXU, WANG LIANG, XIONG YIFAN, GUO HOULIN, LAN YUMEI
• Format: Patent
• Language: Chinese; English
• Published: 18.08.2023
• 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 discloses a high-proportion new energy reactive voltage regulation control method based on multistage coordination, and relates to the technical field of new energy reactive voltage regulation, and the method comprises the following steps: S1, collecting the three-phase voltage and three-phase current of a grid-connected point of each power generation unit, S2, calculating the reactive power demand value of a new energy power station according to a dispatching instruction outputted by a power grid dispatching system, and S3, calculating the reactive power demand value of the new energy power station; and S3, determining a reactive power output reference value of each specific unit of the new energy power station according to the reactive power demand value of the new energy power station, carrying out reactive power regulation by fully utilizing the reactive power output capability of the photovoltaic inverter or the fan, and combining the rapid output response characteristics of the inverter an