Owing to the competitive advantages of cost reduction, system downsizing, and reliability
enhancement, position sensorless control methods for permanent magnet synchronous …

In recent years, the application of sensorless AC motor drives is expanding in areas ranging
from industrial applications to household electrical appliances. As is well known, the …

The most frequently used electrical machine in various modern high‐performance drive
applications is the induction motor (IM), especially its squirrel cage type rotor counterpart …

A speed control of sensorless induction motor (IM) drives at zero and very low frequencies is
designed in this paper. A new adaptive sliding mode observer (SMO) to estimate the stator …

High-frequency excitation sensorless control methods measure the response of the machine
to some form of high-frequency excitation from which the rotor position is estimated. The …

Position estimation at low/zero speed for permanent magnet synchronous machines is
commonly achieved with the injection of high-frequency signals. This article presents a new …

In this paper, a sensorless output feedback controller is designed in order to drive the
induction motor (IM) without the use of flux and speed sensors. First, a new sliding-mode …

This paper presents a new technique for online identification of an induction motor rotor time
constant. The technique is designed for a shaft-sensorless indirect field-oriented control …

This paper presents a new method for position estimation in shaft-sensorless ac motor
drives over the entire speed range, including zero frequency. The method is based on the …

This paper sheds light on the additional harmonic components arising from broken bars fault
in the stator line current of an induction machine, which are generalized and analyzed in a …