With the rapid development of renewable energy,the proportion of wind power and photovoltaic power generation in the power system has increased significantly,which has brought new challenges to the frequency stability of the power system.The traditional frequency control strategy is difficult to fully cope with the fluctuation and intermittence of wind power and photovoltaic power generation.This paper analyzes the characteristics of wind power and photovoltaic power generation and their influence on the frequency stability of power system,and puts forward the regulation strategies such as primary frequency modulation,secondary frequency modulation,tertiary frequency modulation,frequency regulation strategy based on energy storage system and demand response,and verifies their effectiveness through experimental methods,with a view to providing theoretical basis and practical guidance for ensuring the frequency stability of large-scale wind power and photovoltaic power system access.
关键词
风电发电/光伏发电/频率稳定性/调控策略/电力系统
Key words
wind power generation/photovoltaic power generation/frequency stability/control strategy/power system