This paper presents a simple flux regulation for a direct torque control (DTC) of an induction
motor (IM) to improve speed and torque estimations at low-and zero-speed regions. To …

The magnitude of hysteresis torque band has a considerable effect on the performance of
two-level direct torque control (DTC) of induction machines. The conventional DTC fails at …

In this paper, two simple control methods are proposed for improving direct torque control
(DTC) with a constant frequency torque controller (CFTC-DTC) in induction machines. The …

In this article, a simple overmodulation method is proposed for achieving fast direct torque
control with a constant torque-switching controller (CTSR-DTC) in induction machines. The …

It is well known that the selection of extended Kalman filter (EKF) covariance elements has a
considerable bearing on the effectiveness of EKF performance. The observability at very low …

Constant frequency torque controller-based direct torque control (CFTC-DTC) becomes an
attractive control scheme as it offers constant switching frequency and reduces torque ripple …

This paper proposes an improved dynamic overmodulation for direct torque control with
constant switching frequency controller (DTC-CFTC) of AC motor drives to achieve fast …

This article presents the adaptive-network-based fuzzy inference system (ANFIS)-based
direct torque control (DTC) for induction motor (IM). DTC is distinguished by merging a …

Torque calculation process is one of the major concerns for controlling induction motors in
industry, which requires very accurate state estimation of unmeasurable variables of …

In this paper, two kinds of observers are proposed to investigate torque estimation. The first
one is based on a voltage model represented with a lowpass filter (LPF); which is normally …