Title :
Four-quadrant drive as fast operating and precise dynamometric brake
Author :
Wieser, R.S. ; Lechner, A.
Author_Institution :
Inst. of Electr. Machines & Drives, Vienna Univ. of Technol., Austria
Abstract :
An industrial induction machine drive designed for energy recirculating dynamometric brakes is presented. A mains side IGBT-inverter manages both energy flow directions with unique power factor and sinusoidal currents. It connects the DC-link to the supply network with very low distortion and a second IGBT-inverter supplies the brake. Field oriented control of the induction machine and a new software current controller ensure low torque ripple and excellent dynamic behaviour of the shaft torque. The pendulum dynamometer design of the brakes provides robust and precise torque measurement. A built in torque calculator completes the transient torque monitoring. Dynamometric brakes from 100 to 440 kW with several speed ranges up to 18,000 r/min are available
Keywords :
DC-AC power convertors; bipolar transistor switches; braking; dynamometers; electric current control; harmonic distortion; induction motor drives; insulated gate bipolar transistors; invertors; machine control; power bipolar transistors; power semiconductor switches; power system harmonics; torque control; 100 to 440 kW; IGBT inverter; distortion; dynamic behaviour; dynamometric brake; energy flow; field oriented control; four-quadrant induction motor drive; pendulum dynamometer design; shaft torque ripple; software current controller; transient torque monitoring; Electricity supply industry; Energy management; Induction machines; Insulated gate bipolar transistors; Monitoring; Reactive power; Robustness; Shafts; Torque control; Torque measurement;
Conference_Titel :
Industry Applications Conference, 1996. Thirty-First IAS Annual Meeting, IAS '96., Conference Record of the 1996 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-3544-9
DOI :
10.1109/IAS.1996.557013
