Cooling of high-voltage rotating electric machines

Details Cooling of high-voltage rotating electric machines Cooling of high-voltage rotating electric machines

H - Electricity

02

K

H02K 9/00 (2006.01) H02K 5/12 (2006.01) H02K 7/18 (2006.01) H02K 9/02 (2006.01) H02K 9/19 (2006.01) H02K 1/20 (2006.01) H02K 1/32 (2006.01) H02K 5/22 (2006.01) H02K 11/04 (2006.01)

Patent

CA 2375426

The invention relates to cooling of high-voltage rotating electric machines, and involves direct contact cooling of the magnetic cores (1A, 2A) and of at least part of the solidly insulated windings (1B, 2B) by the same kinetic- energy carrying medium (11) that drives or is driven by the rotating electric machine (10) as the medium, such as water or air, flows into contact with and past the core and the winding. This generally means that the rotating electric machine (10) is arranged at least partly within the flow of the medium (11) that drives or is driven by the rotating electric machine, and that the rotating electric machine (10) and the whole energy conversion system is constructed as an open system allowing the medium (11) to flow into contact with the magnetic cores (1A, 2A) and the solidly insulated windings (1B, 2B). According to another aspect of the invention, the spinning member of a rotating machine is constructed as an integrated combination of an electromagnetic rotor and a turbine.

L'invention concerne le refroidissement de machines électriques rotatives haute tension, et comporte le refroidissement par contact direct de noyaux magnétiques (1A, 2A) et au moins d'une partie des enroulements (1B, 2B) parfaitement isolés par le même agent véhicule d'énergie cinétique (11) qui commande ou est commandé par la machine électrique rotative (10). Cet agent, tel de l'eau ou de l'air, s'écoule en contact avec et le long du noyau et de l'enroulement. Cela signifie généralement que la machine électrique rotative (10) est placée au moins en partie dans le flux de l'agent (11) qui commande ou est commandé par la machine électrique rotative, et que la machine électrique rotative (10) et tout le système de conversion d'énergie sont conçus sous forme de système ouvert permettant à l'agent (11) de s'écouler en contact avec les noyaux magnétiques (1A, 2A) et les enroulements parfaitement isolés (1B, 2B). Selon un autre aspect de l'invention, l'élément de rotation d'une machine électrique est conçu sous la forme d'un ensemble intégré composé d'un rotor électromagnétique et d'une turbine.

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