Investigations on Variable and Constant Switching Frequency Hysteresis Controller for VSI fed IM drive

2022 ◽  
Vol 15 (1) ◽  
pp. 1
Author(s):  
Rijil Ramchand ◽  
Joseph Peter
Keyword(s):  
Switching Frequency ◽  
Hysteresis Controller

scholarly journals Proposal Of A Hysteresis Controller With Constant Switching Frequency

2005 ◽  
Vol 10 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Marcos Tadeu Galelli ◽  
Fernando Lessa Tofoli ◽  
Márcio da Silva Vilela ◽  
Ernane Antônio Alves Coelho ◽  
João Batista Vieira Júnior ◽  
...  
Keyword(s):  
Switching Frequency ◽  
Hysteresis Controller

Proposal of a hysteresis controller with constant switching frequency

2005 ◽  
Author(s):  
M. Tadeu Galelli ◽  
M. da Silva Vilela ◽  
E.A. Alves Coelho ◽  
J. Batista Vieira ◽  
L.C. de Freitas ◽  
...  
Keyword(s):  
Switching Frequency ◽  
Hysteresis Controller

Constant Switching Frequency and Torque Ripple Minimization of DTC of Induction Motor Drives with Three-level NPC Inverter

2017 ◽  
Vol 8 (3) ◽  
pp. 1035
Author(s):  
Huzainirah Ismail ◽  
Fazlli Patkar ◽  
Auzani Jidin ◽  
Aiman Zakwan Jidin ◽  
Noor Azida Noor Azlan ◽  
...  
Keyword(s):  
Induction Motor ◽  
High Performance ◽  
Direct Torque Control ◽  
Torque Ripple ◽  
Motor Drives ◽  
Torque Control ◽  
Switching Frequency ◽  
Ac Motor ◽  
Hysteresis Controller ◽  
Selection Of

<p>Direct Torque Control (DTC) is widely applied for ac motor drives as it offers high performance torque control with a simple control strategy. However, conventional DTC poses some disadvantages especially in term of variable switching frequency and large torque ripple due to the utilization of torque hysteresis controller. Other than that, performance of conventional DTC fed by two-level inverter is also restricted by the limited numbers of voltage vectors which lead to inappropriate selection of voltage vectors for different speed operations. This research aims to propose a Constant Switching Frequency (CSF) torque controller for DTC of induction motor (IM) fed by three-level Neutral-Point Clamped (NPC) inverter. The proposed torque controller utilizes PI controller which apply different gain for different speed operation. Besides, the utilization of NPC inverter provides greater number of voltage vectors which allow appropriate selection of voltage vectors for different operating condition. Using the proposed method, the improvement of DTC drives in term of producing a constant switching operation and minimizing torque ripple are achieved and validated via experimental results.</p>

Constant Frequency Torque Controller for DTC with Multilevel Inverter of Induction Machines

2016 ◽  
Vol 7 (1) ◽  
pp. 28
Author(s):  
Norjulia Mohamad Nordin ◽  
Naziha Ahmad Azli ◽  
Nik Rumzi Nik Idris ◽  
Nur Huda Ramlan ◽  
Tole Sutikno
Keyword(s):  
Dynamic Performance ◽  
Direct Torque Control ◽  
Induction Machines ◽  
Torque Control ◽  
Multilevel Inverter ◽  
Switching Frequency ◽  
Constant Frequency ◽  
Hysteresis Controller ◽  
High Torque ◽  
Simulation Results

Direct Torque Control using multilevel inverter (DTC-MLI) with hysteresis controller suffers from high torque and flux ripple and variable switching frequency. In this paper, a constant frequency torque controller is proposed to enhance the DTC-MLI performance. The operational concepts of the constant switching frequency torque controller of a DTC-MLI system followed by the simulation results and analysis are presented. The proposed system significantly improves the DTC drive in terms of dynamic performance, smaller torque and flux ripple, and retain a constant switching frequency.

scholarly journals Hysteresis controller with constant switching frequency

2005 ◽  
Vol 51 (2) ◽  
pp. 688-693 ◽  
Author(s):  
S. Poulsen ◽  
M.A.E. Andersen
Keyword(s):  
Switching Frequency ◽  
Hysteresis Controller

Online Computation of Hysteresis Boundary for Constant Switching Frequency Current-Error Space-Vector-Based Hysteresis Controller for VSI-Fed IM Drives

2012 ◽  
Vol 27 (3) ◽  
pp. 1521-1529 ◽  
Author(s):  
Rijil Ramchand ◽  
K. Gopakumar ◽  
Chintan Patel ◽  
K. Sivakumar ◽  
Anandarup Das ◽  
...  
Keyword(s):  
Switching Frequency ◽  
Space Vector ◽  
Online Computation ◽  
Hysteresis Controller ◽  
Error Space ◽  
Current Error ◽  
Frequency Current
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