Title :
Elimination of harmonic resonance in high power GTO CSI induction motor drives
Author :
Wu, Bin ; Dewinter, Frank
Author_Institution :
Dept. of Electr. Eng., Ryerson Polytech. Inst., Toronto, Ont., Canada
Abstract :
A harmonic resonance phenomenon associated with high power GTO current source inverter drives is investigated. It is indicated in this paper that the resonance is caused by the parallel connection of output capacitor and induction motor, and it is excited by harmonics in the inverter output current. A general solution to eliminating the harmonic resonance is discussed. Two practical problems, the effects of DC link current ripple on inverter current harmonics and the effects of noncharacteristic harmonics on the resonance, are investigated. Solutions to these problems are proposed. Simulation and experimental results on a 1250 HP drive are provided to verify the analysis
Keywords :
induction motor drives; invertors; power system harmonics; resonant power convertors; thyristor convertors; thyristor motor drives; 1250 hp; DC link current ripple; current source inverter; harmonic resonance elimination; high power GTO CSI induction motor drives; induction motor; noncharacteristic harmonics; output capacitor; parallel connection; Capacitors; Circuits; Inductance; Induction motors; Power harmonic filters; Power system harmonics; Pulse width modulation; Pulse width modulation inverters; Resonance; Thyristors;
Conference_Titel :
Power Electronics Specialists Conference, PESC '94 Record., 25th Annual IEEE
Conference_Location :
Taipei
Print_ISBN :
0-7803-1859-5
DOI :
10.1109/PESC.1994.373804
