Variable-speed pumped storage power station operation control method, system and equipment based on storage capacity optimization

The invention discloses a variable-speed pumped storage power station operation control method based on storage capacity optimization, and the method comprises the steps: respectively calculating price deviation, storage capacity deviation and time deviation based on a set electricity price reference value, daily settlement time and a reasonable target storage capacity value; the working condition of the variable-speed pumped storage power station in the next power transaction time period is judged based on the price deviation, the storage capacity deviation and the time deviation, and then the operation power of the variable-speed pumped storage unit in the next power transaction time period is determined based on the working condition of the variable-speed pumped storage power station in the next power transaction time period and the short-term predicted load difference. And updating the storage capacity of the variable-speed pumped storage power station based on the storage capacity variation caused by the