A new drive system for battery operated wheelchairs using 3-phase cage rotor induction machines

TitleA new drive system for battery operated wheelchairs using 3-phase cage rotor induction machines
Publication TypeConference Paper
Year of Publication1992
AuthorsBarnard, J. M., I. D. van Wyk, and W. G. Dunford
Conference NameIndustrial Electronics, Control, Instrumentation, and Automation, 1992. Power Electronics and Motion Control., Proceedings of the 1992 International Conference on
Pagination138 -143 vol.1
Date Publishednov.
Keywords200 W, 3-phase cage rotor induction machines, battery operated wheelchairs, control algorithm, differential algorithm, drive system, dynamic drive evaluation, electric drives, handicapped aids, INTEL 80196 microprocessor, invertors, machine control, pulse width modulation, pulse-width-modulation, PWM FET-based invertors, squirrel cage motors
Abstract

Because of cost considerations, a novel approach to a battery-fed wheelchair drive system is introduced. The drive employs two inexpensive 200-W three-phase cage rotor induction machines with a maximum speed of 6000 rpm. The machines are fed by two low-loss, state-of-the-art three-phase pulse-width-modulation (PWM) FET-based inverters. A simple control and differential algorithm and PWM-generation is implemented in a single INTEL 80196 microprocessor. An experimental setup for dynamic drive evaluation, comprising an accurately controllable load, is also reported, and the characteristics of the drive are illustrated experimentally

URLhttp://dx.doi.org/10.1109/IECON.1992.254591
DOI10.1109/IECON.1992.254591

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