Cooperative control method and system for frequency modulation participated by flywheel-battery hybrid energy storage, and medium

The invention relates to a flywheel-battery hybrid energy storage participated frequency modulation cooperative control method and system and a medium, and the method comprises the steps: collecting a real-time frequency signal and a sampling time interval, and calculating a frequency deviation and a frequency deviation change rate at a current moment based on the real-time frequency signal, a rated working frequency and the sampling time interval; when the frequency deviation exceeds a system frequency modulation threshold value, calculating an output distribution coefficient value based on the frequency modulation stage of the system; and calculating an active power value which should be output by the hybrid energy storage system based on the frequency deviation, the frequency deviation change rate and the value of the output distribution coefficient at the current moment, and providing a power reference value for controlling the hybrid energy storage system. Compared with a traditional ...