Title :
Dynamic brake test stands
Author :
Wieser, R.S. ; Lechner, A.
Author_Institution :
Inst. of Electr. Machines & Drives, Wien Univ., Austria
Abstract :
In this paper a four-quadrant drive with a double IGBT-inverter, a pendulum dynamometer, and a high performance DSP-system was presented. The utility side inverter control is able to recirculate fast changing power demand with low distortions and unique power factor to the supply network. The field-oriented control of the induction machine ensures rated torque from standstill to rated speed and makes a wide constant power range available. Priority was placed on fast and precise torque control. Both torque generation and mechanical torque measurement is done with a specially designed asynchronous machine. The implemented torque calculator completes the system during transient states. The drive is designed to operate as a fast and precise dynamometric brake. Its adaptable software structure and control and parameterization via an industry bus connection makes is appropriate for any professional development application
Keywords :
braking; digital signal processing chips; dynamometers; induction motor drives; insulated gate bipolar transistors; invertors; machine vector control; power factor; test facilities; torque control; adaptable software structure; asynchronous machine; double IGBT-inverter; dynamic brake test stands; dynamometric brake; fast changing power demand recirculation; field-oriented control; four-quadrant drive; high performance DSP-system; induction machine; industry bus connection; low distortions; mechanical torque measurement; pendulum dynamometer; precise torque control; rated torque; torque generation; transient states; unique power factor; utility side inverter control; Computer industry; Induction generators; Induction machines; Insulated gate bipolar transistors; Inverters; Power demand; Reactive power; Testing; Torque control; Torque measurement;
Journal_Title :
Industry Applications Magazine, IEEE
DOI :
10.1109/2943.730763