A Fast Flux Search Controller for DTC-Based Induction Motor Drives
- 30 July 2007
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Industrial Electronics
- Vol. 54 (5), 2407-2416
- https://doi.org/10.1109/tie.2007.900341
Abstract
In this paper, a flux search controller is proposed to increase the efficiency of a direct torque-controlled induction motor in full load range. The value of the flux reference is determined through a minimization algorithm. The amplitude of stator current is used as the objective function since it is shown that samples of the stator current have better statistical properties than input power. In addition, the stator current has more sensitivity to the flux variation than input power. These two properties allow implementing an adaptive algorithm to determine the proper flux step without waste of time. The minimum allowable value of the flux step has been determined based on this process to prevent the divergence problem. This adaptive algorithm set a large flux step for transient state to speed up the convergence process and a small flux step for steady state to minimize the flux ripple. Simulation and experimental results presented in this paper confirm the fast dynamic of the proposed method.Keywords
This publication has 28 references indexed in Scilit:
- Online optimal flux controller for DTC based induction motor drivesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- on the Performance of Optimal Flux Search Controller for DTC Based Induction Motor DrivesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- A fast optimal flux search controller with improved steady state behavior for DTC based induction motor drivesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Torque ripple minimization in DTC of induction motor based on optimized flux value determinationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2004
- Fast efficiency optimization techniques for the indirect vector-controlled induction motor drivesIEEE Transactions on Industry Applications, 2003
- Efficiency-optimized control of medium-size induction motor drivesIEEE Transactions on Industry Applications, 2001
- Model-based loss minimization for DC and AC vector-controlled motors including core saturationIEEE Transactions on Industry Applications, 2000
- Efficiency-optimized direct torque control of synchronous reluctance motor using feedback linearizationIEEE Transactions on Industrial Electronics, 1999
- Loss minimization in scalar-controlled induction motor drives with search controllersIEEE Transactions on Power Electronics, 1996
- Loss minimization in induction motor adjustable-speed drivesIEEE Transactions on Industrial Electronics, 1996