Title :
High performance direct torque control of induction motor drive based on parallel resonant inverter
Author :
Azab, Mohamed ; Orille, A.L.
Author_Institution :
Banha High Inst. of Technol., Kalubia, Egypt
Abstract :
The paper aims to implement the DTC method for an induction motor using a parallel resonant inverter (PRDCL) to obtain an improved DTC. The utilization of the PRDCL allows high switching frequency operation which results in reduced torque ripple thereby improving the speed performance. Moreover, the flux ripple is reduced which results in low stator current ripple. At the same time the PRDCL offers a zero switching operation which means that the switching losses are very small. With the proposed scheme the DTC can be applied to medium power drives with improved performance without switching frequency limitation problem. Simulation results validate the proposed scheme. Experimental set up was done on 1.5 kW induction motor driven by PRDCL works at 70 kHz resonance frequency. Experimental results confirm the possibility to achieve a high dynamic performance with the proposed system
Keywords :
induction motor drives; invertors; losses; machine control; resonant power convertors; switching circuits; torque control; 1.5 kW; 70 kHz; flux ripple reduction; high dynamic performance; high performance direct torque control; high switching frequency operation; improved performance; induction motor drive; low stator current ripple; medium power drives; parallel resonant inverter; reduced torque ripple; resonance frequency; switching losses; zero switching operation; Hysteresis; Induction motor drives; Induction motors; Pulse width modulation inverters; RLC circuits; Resonance; Resonant inverters; Switching frequency; Switching loss; Torque control;
Conference_Titel :
Industrial Electronics Society, 2001. IECON '01. The 27th Annual Conference of the IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-7108-9
DOI :
10.1109/IECON.2001.975963
