The application provides a fire power generation coordinated control monitoring method and
system based on state deviation slow characteristics, the method comprises the following steps: constructing a regulation and control model and a state deviation slow characteristic model of a fire power generation coordinated
control system, determining a regulation and control monitoring threshold, inputting historical state data of a
unit generator into the regulation and control model to obtain current state
estimation data, inputting current state
estimation deviation obtained according to current state real data and the current state
estimation data into the state deviation slow characteristic model to obtain current state deviation slow characteristics, obtaining normal working condition change statistical indexes and real abnormal statistical indexes according to the current state deviation slow characteristics, and obtaining a coordinated control monitoring result according to the normal working condition change statistical indexes, the real abnormal statistical indexes and the regulation and control monitoring threshold. The application effectively realizes global state monitoring of the coordinated control, automatically and accurately judges normal working condition changes and real process abnormalities, and provides reliable protection for fire power generation.