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This paper proposes a novel harmonic suppression scheme for two-level inverter fed three-terminal induction motor drives using switched capacitive filter. Capacitor fed H-bridges used as filters are cascaded to conventional two-level inverter to eliminate fifth- and seventh-order harmonics for the full modulation range including a six-step operation. For the first time, two-level dodecagonal voltage...
Variable speed drives system are known to bear Common Mode Voltage which causes shaft voltage, bearing currents and EMI problems. In this paper a new topology to realize multilevel operation for a 3-φ, dual inverter fed open ended winding induction motor with Common Mode Voltage (CMV) elimination is presented. The proposed dual-inverter configuration makes it easy to facilitate all the space vector...
The main goal of the paper is to discuss about usefulness, drawbacks and perspectives of single-phase PWM adjustable speed drives (ASDs) for low-power three-phase induction motors. Their positive impact on energy saving in large-scale residential house appliances is underlined. A great attention is devoted to the problem of generation of current harmonic components, both on the motor-side and on the...
The life time of the windings of the motor is an important factor in induction motor drives. The life time of the windings depends on the enamel coating, needed for isolation, on the windings of the induction motor. The windings of the induction motor heat up every time the induction motor is operated and this results in drastic reduction of the life time of the induction motor. Various techniques...
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