Title :
A novel inverter drive
Author :
Williams, B.W. ; Salmon, J.C.
Author_Institution :
Heriot-Watt Univ., Edinburgh, UK
Abstract :
An inverter and squirrel cage induction motor drive are presented which alleviate many of the snubber problems associated with conventional DC-fed inverter bridges. The inverter leg series inductance snubber is effectively increased by inserting the motor leakage inductance. The increased leg inductance decreases unwanted turn-off snubber charging currents and controls simultaneous conduction current. The concept and principles are illustrated with a novel 4 kW output drive.
Keywords :
electric drives; invertors; squirrel cage motors; 4 kW; DC-fed inverter bridges; inverter; leg inductance; motor leakage inductance; simultaneous conduction current; snubber; squirrel cage induction motor drive; turn-off snubber charging currents; Bridge circuits; Inductance; Inductors; Inverters; Leg; Pulse width modulation; Semiconductor diodes; Snubbers; Switches; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1988. PESC '88 Record., 19th Annual IEEE
Conference_Location :
Kyoto, Japan
DOI :
10.1109/PESC.1988.18171
