This invention discloses an offline parameter identification method,
system, electronic device, and computer storage medium for
servo systems. The method includes: acquiring
input control signals and output position feedback data of the
servo system and preprocessing the data; designing the DDPG
algorithm structure: determining the
system model structure, defining parameter state vectors, defining the action space, constructing an Actor network, constructing a Critic network, designing a reward function, and configuring an experience replay mechanism; and executing the parameter identification training process: initialization, action output, parameter update and next parameter state generation,
model prediction and reward calculation, experience storage, network update, backoff mechanism, and termination flag determination, until the training termination condition is met. The identification result of this invention is a discrete state-
space model, which is simple in form, has low computational cost, and can be directly ported to embedded platforms such as MCUs, meeting the
engineering application needs of real-
time control, fault detection, etc., and has broad industrial application prospects.