Method, device and equipment for diagnosing integration of hydropower station into power grid system

• Main Authors: ZHANG RONGHAI, JIANG WENZHUO, CHEN TAO, LI JIE, WANG XIAN, LIU PEIPEI, SUN BO, CHENG ZHANQIANG, OUYANG BENKAI, ZHUANG ZEHONG, PENG CHUNYAN
• Format: Patent
• Language: Chinese; English
• Published: 22.07.2022
• 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 diagnosis method, device and equipment for a hydropower station to be merged into a power grid system. The method comprises the following steps: acquiring grid-connected demand information of a hydropower station; acquiring first voltage information of the hydropower station and second voltage information of a to-be-connected power grid based on the grid-connected demand information; judging whether the deviation between the first voltage information and the second voltage information meets a preset deviation range or not; if yes, whether the to-be-connected power grid meets the grid connection requirement or not is judged; and if yes, connecting the hydropower station into the to-be-connected power grid. The method can diagnose whether the hydropower station needs to be merged into the power grid system, avoids the situation that the power grid system is unstable after the hydropower station which does not meet the grid connection requirement is merged into the power grid system, an