Title :
Design and experimental evaluation of the loss-free braking resistor concept for applications in integrated converter machine systems
Author :
Kolar, Johann W. ; Ertl, Hans ; Zach, Franz C.
Author_Institution :
Tech. Univ. Wien, Austria
fDate :
31 Aug-4 Sep 1998
Abstract :
If the braking resistor of a conventional dissipative braking system (braking chopper) of a three-phase AC motor drive is replaced by a thyristor bridge (loss-free braking resistor) controlled in the full inverter operation, the braking energy of the drive can be fed back into the mains. This means that the current flowing into the mains via always two phases from the DC link is controlled by the power transistor of the braking chopper. In this paper, this regenerative braking system is discussed based on a 10 kW laboratory model
Keywords :
AC motor drives; DC-AC power convertors; bridge circuits; invertors; regenerative braking; resistors; thyristor convertors; 10 kW; applications; full inverter operation; integrated power converter-machine systems; loss-free braking resistor concept; power transistor; regenerative braking system; thyristor bridge; AC motors; Bridges; Choppers; Control systems; Drives; Inverters; Laboratories; Power transistors; Resistors; Thyristors;
Conference_Titel :
Industrial Electronics Society, 1998. IECON '98. Proceedings of the 24th Annual Conference of the IEEE
Conference_Location :
Aachen
Print_ISBN :
0-7803-4503-7
DOI :
10.1109/IECON.1998.724165
