Permanent magnet synchronous motor active disturbance rejection control method based on improved whale optimization algorithm

Abstract

The invention discloses a permanent magnet synchronous motor active-disturbance-rejection control method based on an improved whale optimization algorithm, and the method comprises the steps: S1, building a permanent magnet synchronous motor mathematical model, and obtaining a simplified permanent magnet synchronous motor mathematical model; S2, establishing a control model of the active disturbance rejection controller, and further determining parameters needing to be set; S3, establishing an improved active disturbance rejection controller; S4, establishing a mathematical model of the permanent magnet synchronous motor based on the control of the improved active disturbance rejection controller; and S5, optimizing parameters needing to be set through an improved whale optimization algorithm. According to the invention, the active disturbance rejection controller is applied to the PMSM speed regulation system, the improved ADRC is provided, the improved whale optimization algorithm based on refraction operation is provided to set the parameters, the convergence speed and optimization precision of the optimization process are improved, the optimization performance of the algorithm is effectively improved, the ADRC parameters can be effectively set, and the transient and steady state performance of the PMSM speed regulation system is effectively improved.

Description

technical field [0001] The invention relates to the technical field of permanent magnet synchronous motor control, in particular to an active disturbance rejection control method for permanent magnet synchronous motors based on an improved whale optimization algorithm. Background technique [0002] The mathematical model of permanent magnet synchronous motor has the characteristics of high nonlinearity, strong coupling, and line parameter perturbation. Traditional vector control uses PI controller to adjust the performance of PMSM. Performance requirements at low speeds. Moreover, the nonlinear function of the traditional active disturbance rejection controller (Traditional ADRC) cannot be derived at the segmentation point, and there are many parameters to be optimized. When setting its parameters, the convergence speed is slow and the optimization accuracy is not high. Contents of the invention [0003] The invention provides a permanent magnet synchronous motor active d...

AI Technical Summary

Problems solved by technology

[0002] The mathematical model of permanent magnet synchronous motor has the characteristics of high nonlinearity, strong coupling, and line parameter perturbation. Traditional vector control uses PI controller to adjust the performance of PMSM. Performance requirements at low speeds

Moreover, the nonlinear function of the traditional ADRC cannot be derived at the segmentation point, and there are many parameters to be optimized. When setting its parameters, the convergence speed is slow and the optimization accuracy is not high

Images