A new d.c. machine arrangement for an electronically assisted commutation

Autor: Quichaud, G., Ihaddadene, A., Poloujadoff, M., Benalla, H., Goyet, R., Quichaud, G., Ihaddadene, A., Poloujadoff, M., Benalla, H., Goyet, R.
Zdroj: Journal de Physique III; November 1993, Vol. 3 Issue: 11 p2065-2070, 6p
Abstrakt: The d.c. machine is the cheapest way to realize variable speed drives. However its performances are limited by the commutator operation. Indeed, the latter wears out very rapidly because of the sparks, even arcings, which appear between the segments and the brushes, in spite of use of commutating poles. Over the last fifteen years, our laboratory has implemented external circuits to assist commutation and alleviate, or even suppress, the main difficulties. This paper presents a new arrangement which seems very promising.
Databáze: Supplemental Index