Patent ID: 9722479
Date: 2017-08-01
CPC Classifications: H02K,Y10T

Claim:
1. A wind turbine comprising: a transverse flux electrical machine (TFEM), the TFEM comprising a stator portion; and a rotor portion rotatably located with respect to the stator portion, the rotor portion including an alternate sequence of individual magnets and individual concentrators radially disposed about a rotation axis thereof, each concentrator including a circumferential width for concentrating an electromagnetic field of a polarity of a pair of adjacent magnets; the stator portion including at least one phase, the at least one phase including a plurality of cores cooperating with a coil orthogonally disposed about the rotation axis, the plurality of cores being secured inside a pair of halves within respective core-receiving spaces therein, each core including a pair of legs interconnected with an intermediate core portion, the intermediate core portion circumferentially offsetting the pair of legs from one another, the pair of legs ending with a pair of poles extending from the pair of halves through openings therein for electromagnetically engaging the concentrators, the pair of legs and the pair of poles including a circumferential thickness, the pair of poles axially skewed about the rotation axis, forming a non-ninety-degree angle with the coil, to progressively electromagnetically engage the electromagnetic field of respective cooperating concentrators to reduce a cogging torque when the TFEM is in operation.