Disc-type ironless permanent magnet synchronous generator powered by auxiliary power supply
OwnerXiaoguang Wang, Renwei Yuinventors
Life of this patent
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Abstract
Provided is a disc-type ironless permanent magnet synchronous generator powered by an auxiliary power supply, which comprises a stator coil disc and a pair of permanent magnet rotor discs (1) positioned on two sides of the stator coil disc and arranged with a gap therebetween, a circle of main coils (3) are fixedly arranged on the stator coil disc around a center of the disc, the main coil is a main winding of an electric motor to output electric energy, an auxiliary winding independent from the main winding is arranged on a circumference formed by the main coils (3) in a surrounding manner, and output power of the auxiliary winding is less than output power of the main winding.
Claims3
An axial-flux coreless permanent magnet synchronous generator, comprising a stator coil disk and two permanent magnet rotor disks (1) positioned on either side of the stator coil disk and arranged with a gap therebetween, the stator coil disk being coaxial with the permanent magnet rotor disks (1), a plurality of main coils (3) being secured on the stator coil disk concentrically around a center of the stator coil disk in spaced relation to each other, and the plurality of main coils being a main winding of the axial-flux coreless permanent magnet synchronous generator;
- wherein an auxiliary winding independent from the main winding is arranged on a circumference formed by the plurality of main coils (3) concentrically around the center of the stator coil disk, and output power of the auxiliary winding is less than output power of the main winding;
- wherein the auxiliary winding is provided with one or more independent auxiliary coils (4), and each auxiliary coil is composed of an independent coil;
- wherein the main winding is divided into multiple phases, which are distributed in a central symmetry relative to the center of the stator coil disk, and on the same layer of the stator coil disk, each of the one or more auxiliary coils (4) is separately arranged between coils of different phases of the main winding;
- wherein the sum of the total power of the auxiliary coils is less than one third of the total power of the main coils;
- wherein a sum of pitches occupied by the main coils is greater than a sum of pitches occupied by the auxiliary coils;
- the pitch of the main coil is expressed as:
- y1=[(360−(A+B)×α1)−A×y2]/B, wherein y1 represents the pitch of the main coil, expressed in degrees, A represents a number of the auxiliary coils, B represents a number of the main coils, α1 represents an angle occupied by an interval between adjacent coils, y2 represents the pitch of the auxiliary coil, expressed in degrees and a value of y2 ranges from 1 to 360/B.
Dependencies are inferred from the claim text.