Low inductance electrical machine for flywheel energy storage

H - Electricity – 02 – K

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H02K 21/10 (2006.01) H02K 1/00 (2006.01) H02K 3/00 (2006.01) H02K 3/04 (2006.01) H02K 7/02 (2006.01) H02K 16/02 (2006.01) H02K 17/16 (2006.01) H02K 17/22 (2006.01) H02K 19/00 (2006.01) H02K 19/10 (2006.01) H02K 19/14 (2006.01) H02K 19/24 (2006.01) H02K 19/26 (2006.01) H02K 21/00 (2006.01) H02K 21/04 (2006.01) H02K 21/12 (2006.01) H02K 23/02 (2006.01) H02K 23/20 (2006.01) H02K 27/06 (2006.01)

Patent

CA 2387918

A low inductance electrical alternator or motor (1) with low armature inductance is disclosed. Arrangements of complementary armature windings (40) are presented in which the fluxes induced by currents in the armature windings (40) effectively cancel leading to low magnetic energy storage within the machine (1). This leads to low net flux levels, low core losses, low inductance and reduced tendency toward magnetic saturation. Separately excited field arrangements are disclosed that allow rotor motion to effect brushless alternator or brushless motor operation. An exemplary geometry includes a stator (2) including two toroidal rings (4, 6) and a concentric field coil (8) together with a rotor structure (22, 24, 25) separated from the stator (2) by four air gaps (54, 56). An alternate embodiment allows for counter-rotation of two rotor elements (24) for use as a flywheel energy storage system in which the external gyroscopic effects cancel.

L'invention concerne un alternateur ou un moteur (1) électrique à faible inductance présentant une faible inductance d'induit. Elle concerne également des dispositifs d'enroulements (40) d'induit complémentaires dans lesquels s'annulent les flux qui y sont induits par des courants entraînant un faible stockage d'énergie magnétique dans la machine (1). Il en résulte des niveaux de flux nets bas, des pertes dans le fer faibles, une inductance faible et une tendance vers la saturation magnétique réduite. L'invention concerne des dispositifs de champ excités séparément qui entraînent le rotor pour effectuer une opération d'alternateur ou de moteur sans balai. Dans un mode de réalisation, l'invention concerne un stator (2) comprenant deux anneaux toriques (4, 6) et une bobine de champ concentrique (8) ainsi qu'une structure de rotor (22, 24, 25) séparée du stator (2) par quatre entrefers (54, 56). Dans un autre mode de réalisation, il s'agit de la contre-rotation de deux éléments de rotor (24) servant de système de stockage d'énergie dans des volants d'inertie dans lequel les effets gyroscopiques externes s'annulent.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Low inductance electrical machine for flywheel energy storage does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low inductance electrical machine for flywheel energy storage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low inductance electrical machine for flywheel energy storage will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1380554

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.