Results 261 to 270 of about 12,135,050 (303)

Design and optimization of a direct torque hysteresis controller

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, 2014
In this paper, a direct torque hysteresis controller (DTHC) driving a permanent magnet synchronous machine is discussed. A two-level, three-phase conventional inverter is used as means of power conversion. Advantages such as a low switching frequency as well as further opportunities of the DTHC are specified.
Philip Dost, Marcel Scheuer, Constantinos Sourkounis   +2 more
openaire   +1 more source

IM Direct Torque Control with no flux distortion and no static torque error

ISA Transactions, 2015
The purpose of this paper is to improve DTC control strategy performances. In fact, we propose controlling both stator flux components (real and imaginary) through two hysteresis controllers. Thus, a new switching table which is independent from sector determination, and does not introduce zero voltage vectors is established; with much reduced size ...
Abdesslam, Lokriti, Issam, Salhi, Said, Doubabi   +2 more
openaire   +2 more sources

Direct Torque Control

2018
Abstract The fundamental principles of direct torque control (DTC) of permanent magnet synchronous (PMS) motors are presented in this chapter. The basic DTC system is then described. The operating limits of PMS machines under DTC are presented in terms of current limit, voltage limit, and flux linkage limit.
openaire   +1 more source

A new torque controller for Direct Torque Controlled Induction Machine drives

2008 12th International Middle-East Power System Conference, 2008
Hysteresis band control is one of the simplest and most popular techniques used in direct torque control (DTC) of induction machine drives. However the conventional fixed band hysteresis control has a variable switching frequency which causes serious problems in DTC.
openaire   +1 more source

Predictive Direct Torque Control for the PM Synchronous Machine

IEEE Transactions on Industrial Electronics, 2004
The paper shows that a predictive digital control combined with the principle of the direct torque control leads to an excellent dynamic behavior of the permanent magnet excited synchronous machine and is a real alternative to the classical field orientated control.
Mario Pacas, Jürgen Weber
openaire   +1 more source

Microcontroller implementation of direct torque control

International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, 2004
AbstractThe switching frequency of a conventional direct torque control (DTC) strategy which is based on hysteresis controllers results in a variable switching frequency which depends on the mechanical speed, stator flux, stator voltage, and the hysteresis band of the comparator.
Mahfouz, Ahmed A., Sarhan, Gamal M., Nafeh, Abdel-Nasser A.   +2 more
openaire   +1 more source

Methods for direct torque control of induction machines

2017 19th International Conference on Electrical Drives and Power Electronics (EDPE), 2017
High performance drives with induction machines require use of vector control. The direct torque control and field oriented control are nowadays two most applied vector control methods. The main advantage of the method for direct torque control of induction machines is its simplicity and therefore its robustness.
openaire   +2 more sources

Direct digital design of computed torque controllers

Journal of Robotic Systems, 1994
AbstractDirect digital design of computed torque controllers for a robot manipulator is discussed in this article. A simple discrete‐time model of the robot manipulator obtained by Euler's method is used for the design. Taking account of computation delay in the digital processor, we propose predictor‐based designs of the PD and PID type controllers ...
openaire   +3 more sources

Direct Torque Control of PMSM with Torque Ripple Reduction Based on Fuzzy Logic Control

2015
This paper is presented to examine and improve the performance of the torque ripple suppression for direct torque controlled permanent magnet synchronous motor by using fuzzy control method. On the basis of analyzing the torque ripple of the direct torque control in details, the fuzzy controllers are designed for two parts.
Bowen Ning, Shanmei Cheng, Yi Qin
openaire   +2 more sources

Fuzzy logic direct torque control

ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543), 2002
A brief review of the different induction motor drives is done and its reason of being such a high matter of interest is summarised. Next, the direct torque control (DTC) in induction motors with its fundamental principles and schemes is described. Once the DTC is described, its main drawbacks are introduced.
A. Arias, J.L. Romeral, E. Aldabas, M.G. Jayne   +3 more
openaire   +1 more source