The invention relates to the technical field of variable
frequency regulation, in particular to a variable frequency speed regulation energy-saving control method and
system based on load dynamic identification, and the method comprises the steps: constructing a multi-dimensional
time sequence structure for data collected in a current operation period of a
system, and identifying the dynamic trend of a
current load based on the sequence; establishing a candidate frequency set, outputting a power prediction value corresponding to the candidate frequency set through a power
estimation model, calculating a unit energy-saving potential after the current frequency is adjusted to the candidate frequency through an energy-saving potential
algorithm, and inputting the candidate frequency corresponding to the unit energy-saving potential greater than a threshold value into a feasible frequency set; on the basis of the feasible frequency set and the corresponding unit energy-saving potential, establishing a comprehensive scoring function, and selecting an optimal target frequency through the comprehensive scoring function; and inputting the optimal target frequency and the current operation frequency into a feedback correction function, outputting an execution frequency of the frequency converter through the feedback correction function, and converting the execution frequency into a corresponding control instruction.