학술논문
Sliding Mode Control with Flux Observer in Sensorless Control of Induction Motor
Document Type
Conference
Source
2018 International Symposium on Advanced Electrical and Communication Technologies (ISAECT) Advanced Electrical and Communication Technologies (ISAECT), 2018 International Symposium on. :1-6 Nov, 2018
Subject
Language
Abstract
Most control without a speed sensor uses the Field oriented control. In this work we propose a control associated with an observer in sliding mode of the induction motor without speed sensor. The synthesis of the control and the observer of the rotor flux is based on an appropriate choice of sliding surfaces. The demonstration of stability is based on Lyapunov's theory; thus the convergence of the errors of the speed and the norm of the rotor flux are guaranteed; using the estimates, we design a velocity estimator to avoid the use of a velocity sensor. The velocity estimator uses the error between the estimated rotor flux and the flux from a reference model. This error is adapted by PI regulator to deduce the estimated speed. The simulation results are encouraging.