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20. Direct flux and torque control of induction motor drive for speed regulator using PI and fuzzy logic controllers.

Author

Ramesh, Tejavathu, Panda, Anup Kumar, Suresh, Y, and Mikkili, Suresh

Abstract

This paper presents a direct flux and torque control (DTC) of induction motor drive (IMD) for speed regulator (SR) using fuzzy logic controller (FLC). This control method is based on DTC operating principles. The DTC is one of the most excellent strategies of torque and flux ripples control of IMD. The DTC control method has been optimized by using conventional PI controller in the SR loop of IMD. The main drawback of the DTC of IMD using conventional PI controller based SR is high torque, stator flux ripples and speed of IMD is decreasing under transient and steady state operating conditions. This drawback was eliminated using the FLC based SR loop. The FLC based SR control scheme combines the benefits of DTC technique along with FLC technique. Also Comparing with the conventional PI based SR, the FLC based SR is achieved high quality of torque, stator flux, and rated speed of IMD. The stability of IMD during transient and steady state operations is assured through the application of FLC based SR along with DTC. Finally the effectiveness, validity, and performance of the DTC of IMD using both conventional PI and FL controller based SR has been analyzed, studied, compared, and confirmed by simulating results, from the simulation results found that the low torque, stator flux ripples, and rated speed with the FLC technique using MATLAB/SIMULINK. [ABSTRACT FROM PUBLISHER]

Published
2012

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