Design of ADRC Controller for Induction Motor Based on Improved fal Function

Abstract

Based on the induction motor vector control system, the active disturbance rejection controller (ADRC) technology is discussed. Based on the insufficient observation accuracy of the traditional nonlinear fal function, a new nonlinear normal distribution function ndfal function is constructed to redesign the ADRC controller, which is applied to the induction motor speed regulator, and the induction motor vector control system based on ndfal-ADRC speed control is designed, and the system is compared with the system based on traditional controller. The simulation results show that the control effect of the system based on ndfal ADRC is obviously better than the traditional control. It greatly improves the speed response speed and steady-state accuracy of the system, and has certain anti-interference performance and feasibility.