Design and experimental evaluation of the loss-free braking resistor concept for applications in integrated converter machine systems

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...

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Published inIECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200) Vol. 2; pp. 626 - 629 vol.2
Main Authors Kolar, J.W., Ertl, H., Zach, F.C.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1998
Subjects
AC motors
Bridges
Choppers
Control systems
Drives
Inverters
Laboratories
Power transistors
Resistors
Thyristors
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Summary: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.
ISBN:0780345037
9780780345034
DOI:10.1109/IECON.1998.724165