Title :
An induction motor drive using an improved high frequency resonant DC link invertor
Author :
Lai, Jih-Sheng ; Bose, Bimal K.
Author_Institution :
Tennessee Center for Res. & Dev., Knoxville, TN, USA
fDate :
7/1/1991 12:00:00 AM
Abstract :
An induction motor drive that uses an improved high-frequency resonant DC link inverter is presented. The resonant circuit was systematically analyzed first to establish the criteria for initial current selection, and a circuit to establish the bidirectional initial current was then proposed. The proposed current initialization scheme solves voltage overshoot and zero crossing failure problems in the ordinary resonant DC link inverters. A three-phase 3 kW insulated-gate-bipolar-transistor (IGBT) based 60 kHz resonant link inverter has been constructed and successfully tested with an induction motor drive. The speed control system is implemented using two microprocessors. Experimental results are presented to show superior operation of the proposed resonant DC link inverter drive
Keywords :
electric drives; induction motors; insulated gate bipolar transistors; invertors; machine control; microcomputer applications; velocity control; 3 kW; 60 kHz; bidirectional initial current; current initialization scheme; high frequency; induction motor drive; insulated-gate-bipolar-transistor; microprocessors; resonant DC link invertor; speed control system; three-phase; voltage overshoot failure; zero crossing failure; Circuit analysis; Circuit testing; Induction motor drives; Insulated gate bipolar transistors; Insulation; Inverters; RLC circuits; Resonance; Resonant frequency; Voltage;
Journal_Title :
Power Electronics, IEEE Transactions on
