Title :
Buck-type hybrid inverter drive
Author_Institution :
Dept. of Electr. Eng., Alberta Univ., Edmonton, Alta., Canada
Abstract :
The operation of the buck-type hybrid inverter drive during steady state and also during output short-circuit fault conditions is described. The step-up action of the inverter bridge, combined with the step-down action of the buck stage, allows the DC-rail voltage to be regulated at levels above the rectified supply voltage. This is possible even during periods of supply voltage fluctuations. The drive DC-link allows protection to be obtained against short circuit faults such as line-line and line-ground faults. Simulation results are used to illustrate the drive operation
Keywords :
AC motor drives; DC-AC power convertors; DC-DC power convertors; invertors; machine control; short-circuit currents; voltage control; DC-rail voltage; buck-type hybrid inverter drive; line-ground faults; line-line faults; short-circuit fault conditions; steady state; voltage regulation; Bridge circuits; Circuit faults; Fluctuations; Frequency; Inductors; Protection; Pulse width modulation; Pulse width modulation inverters; Steady-state; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 1993. PESC '93 Record., 24th Annual IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-1243-0
DOI :
10.1109/PESC.1993.472066
