Novel direct torque control (DTC) scheme with fuzzy adaptive torque-ripple reduction
Romeral, L.; Arias, A.; Aldabas, E.; Jayne, M.G.
Industrial Electronics, IEEE Transactions on
Volume 50, Issue 3, June 2003 Page(s): 487 - 492
Digital Object Identifier   10.1109/TIE.2003.812352
Summary: Investigations were carried out on a novel direct torque control system, which not only reduces the undesirable torque ripple by up to 98% by means of introducing a modulation between the selected active state and a zero state, but also maintains constant switching frequency. Additionally, this two-state modulator is fuzzy adaptive and may be applied to any induction motor. Simulation and the results of experiment illustrate the operation and performance of the proposed fuzzy-logic-based controller.

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