Induction motor sensorless control by DSP

Sensorless Control of Induction Motor Drives

rotor field orientation stator field orientation stator model rotor model MRAS, observers, Kalman filter parasitic properties field angle estimation Abstract — Controlled induction motor drives without mechanical speed sensors at the motor shaft have the attractions of low cost and high reliability. To replace the sensor, the information on the rotor speed is extracted from measured stator volt...

Simplified Sensorless Control for BLDC Motor, Using DSP Technology

This paper describes a simple way to control, in a sensorless way, a Brushless DC (BLDC) motor for electric vehicle applications. To control this machine it is generally required to count with a position sensor because the inverter phases, acting at any time, must be commuted depending on the rotor position. Encoders and resolvers have been used for sensing rotor position with respect to stator...

Study and Implementation of DSP Based Sensorless Speed Control of Induction Motor

Sensorless Control of a Linearized and Decoupled Induction Motor Drive

This paper presents an input-output linearizing and decoupling control scheme with speed estimation for an adjustable speed induction motor drive. A stator flux based estimator is used to estimate the synchronous speed. The motor speed is estimated by measuring only two line currents and two line voltages. A moving average algorithm is used to filter the ripples in the estimated speed. Simulati...

Low Speed Sensorless Variable Structure Control of Induction Motor

Torque and speed sensorless induction motor control is presented in this paper. The idea is realized using a sliding mode closed loop rotor flux observer for estimation of electromotive force of machine. This signal is then used in nonlinear stator flux and torque control of induction motor and in rotor flux observer for speed and flux estimation. The analysis of the proposed method is included...