《《New Direct Torque Neuro Fuzzy Control Based SVM Three Level Inverter Fed Induction Motor》.pdf

International Journal of Control, Automation, and Systems (2010) 8(2):425-432 /12555 DOI 10.1007/s12555-010-0230-8 New Direct Torque Neuro-Fuzzy Control Based SVM-Three Level Inverter-Fed Induction Motor Toufouti Riad, Benalla Hocine, and Meziane Salima Abstract: In this paper, a novel direct torque neuro-fuzzy control (DTCNF) scheme combining with space voltage modulation (SVM) technique of a three levels inverter is presented. Using neuro-fuzzy technique, the reference space voltage vector can be obtained dynamically in terms of torque error, sta- tor flux error and the angle of stator flux. Compared with conventional direct torque control (C_DTC), in this new technique, the ripples of both torque and flux are reduced remarkable, and switching fre- quency is maintained constant. Simulation results verify the validity of the proposed method. Keywords: Direct torque control, induction motor, neuro-fuzzy, space vector modulation, stator flux, three level inverter. 1. INTRODUCTION systems take a remarkable place, in [16,17] a NFC is used for a DTC drive. Later, in [14,18] the same system In recent years, the industrial applications of the field was implemented with excellent results; however oriented control (FOC) induction motor drives have additional calculations were needed to reach zero-steady- greatly increased, including steel and paper machines, state error. machine tools, and so on [4]. In parallel, several In this paper, a novel dir