H - Electricity – 02 – P
Patent
H - Electricity
02
P
322/11, 310/67,
H02P 9/00 (2006.01) H02J 9/06 (2006.01) H02K 16/00 (2006.01) H02K 21/04 (2006.01) H02K 47/20 (2006.01)
Patent
CA 1120101
ABSTRACT This invention relates to a novel non-interruptible power system (NIPS) comprising an A.C. generator that pro- duces A.C. at a constant frequency and voltage regardless of the electrical power supply to a driving motor for the generator. The A.C. generator comprises at least one field core with a cylindrical surface with a layer of magnetizable permanent magnet material thereon, and a slotted armature, relatively rotatable to the field core, having a cylindrical surface Juxtaposed to the cylindrical surface of the field core. An excitation coil in the armature is disposed to have A.C. passed through it so that it magnetizes the layer of magnet material in the field core into a pattern of magnetic poles. Main A.C. power windings in the armature generate A.C. during rotation. A novel feature comprises placing in selected slots in the armature (1) supplementing windings for generating A.C. for the excitation coil and (2) modifying windings energizable with current to control the remanent flux in the layer of magnet material. In generators with several field cores and armatures, there are provided in selected slots in each armature leading or lagging windings or both whose A.C. output may be combined with that of the main power windings to give an A.C, output with low total harmonic distortion. If power to the driving motor fails, the rotational energy of the generator keeps producing the desired constant voltage and frequency for a prolonged period.
313035
Hirons & Rogers
Roesel John F. Jr.
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