| 摘要 |
Slow moving electrical machine, such as a motor or a generator or a combined motor-generator, comprising an annular set of windings (23) on irons cores (45) of laminated sheets or pressed iron powder, and a corresponding annular set of permanent magnets (36), particularly a permanently magnetized synchronous machine (PMSM) for an alternating voltage with positive and negative voltage levels of sinusoidal characteristic. The windings are concentrated, not distributed in grooves and, winding cores (45) are arranged alternating with iron cores (46) without windings. Every second iron core is provided with a winding, the number of grooves or intervals between the cores and the number of poles being different, the number of grooves (s) and the number of poles (p) follow the equations ]s-p!=2*m and s=12*n*m, wherein n and m are natural numbers. The electrical machine is built for three phase voltage, with serial connection of adjoining coils, to make 2*m such groups per phase, which can be connected in series or in parallel. This motor can be used as a wheel motor for a vehicle.
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