Driven by the "dual carbon" goals

the installed scale of photovoltaic power plants has grown rapidly and a large number of grid connections. However

due to the intermittency and volatility of its output power

it often causes power grid voltage fluctuations

threatening the quality and system stability of electricity. There is an urgent need for electrical automation suppression solutions to solve the problem. This study focuses on the voltage fluctuation problem caused by the grid connection of photovoltaic power stations

deeply analyzes its generation mechanism and influencing factors

and systematically explores the electrical automation suppression technology and solutions. By combining power electronics technology

intelligent control algorithms and automated monitoring systems

it proposes　a multi-dimensional voltage fluctuation suppression strategy based on reactive compensation

voltage regulation control

energy storage coordination

etc.

aiming to improve the grid connection stability of photovoltaic power plants and the power　quality of power grid

and provide theoretical and practical references for the safe and reliable operation of new energy power systems.