Abstract
The stator structure of a disc-type permanent-magnet synchronous motor is a printed circuit board (PCB). The design of stator windings has a direct influence on motor performance and the utilization rate of the stator. However, in some respects, PCB processing technology limits the development of the disc-type electric motor with a PCB stator. For example, the wiring of the stator winding and the connections of the ends are single. In this paper, an improved winding was designed to improve the output power. The analytic expressions for the back electromotive force (EMF) and other parameters such as power, winding resistance, and eddy loss are established, respectively. According to finite-element theory, the characteristics of the improved winding and distributed winding under no load and load were simulated and analyzed. It is concluded that the improved winding not only improves no-load back EMF, along with output power and efficiency under load, but also the utilization rate of the stator was greatly improved. Finally, a prototype was made to verify the design that has a certain reference value for the design of a disc-type permanent-magnet motor with a PCB stator.
Highlights
A disc-type motor with a printed circuit board (PCB) stator is different from a traditional radial motor
The stator and rotor of the disc-type motor with a PCB stator are usually arranged along the axial direction, and, structure-wise, it has a single rotor, single stator, middle stator, and multiple discs
When the PCB stator disc-type motor is simulated under steady operating conditions, the motor model and the magnetic field are periodically repeated along the circumferential position of the motor
Summary
A disc-type motor with a printed circuit board (PCB) stator is different from a traditional radial motor. PCB stator disc-type motors have numerous advantages, like light weight, high power density, and small torque ripple [4,5,6,7]. The key factor in the design of a PCB stator disc-type motor is the PCB winding. PCB winding with an integer two-phase waveform PCB winding with an integer slot, which reduced the harmonic componentsslot, and which reduced the harmonic components increased the torque density of the motor. Increased the torque density of the motor Summary, it with the the shape shape and optimization of non-overlapping concentrated winding (such as rhombus, waveform, and optimization of non-overlapping concentrated winding (such as rhombus, waveform, trapezoidal, trapezoidal, circularatwindings) home and abroad.
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