The invention discloses a
wind power plant frequency modulation dynamic equivalent modeling method, device and equipment and a medium, and belongs to the field of power
system planning operation. The method comprises the steps that working parameters of all wind
turbine generators in the
frequency modulation process are obtained and serve as training data for generating a Koopman operator; according to the training data, wind
turbine generator dynamic characteristic identification based on a
state space dimension raising mode is carried out, and a Koopman operator capable of reflecting a high-dimensional
linear relation is obtained; based on the obtained Koopman operator, dividing the
wind power plant into a plurality of
machine groups by adopting a gap measurement method; and aggregating a plurality of units in the same
unit group based on an invariant criterion of output characteristics of the units before and after equivalence. According to the method, the condition that the fans exit
frequency modulation due to
wind speed out-of-limit or other faults can be better identified, so that the grouping result is more accurate, the actual dynamic characteristics of the
wind power plant can be more accurately reflected, the
modeling and simulation process of the wind power plant can be simplified, each fan can participate in
system frequency modulation more efficiently, and the
system efficiency is improved. And the operation stability of the power system can be enhanced.