Abstract
We present an analytical method for applying conformal mapping to the notched geometry of a surface permanent magnet synchronous motor to calculate the cogging torque. First, the complex relative air-gap permeance (CRAP) of the notched air-gap is calculated by multiplying the CRAP of a slotted air-gap with the notch sensitivity coefficient, which is defined by the relation of slot and notch shapes. Secondly, the no-load air-gap flux density (AFD) is derived from the CRAPs of the notched and slotted air-gaps. Finally, the cogging torque of the notched motor is calculated by the no-load AFD and is verified using the 2D finite element analysis (FEA) result. A 4-pole and 12-slot surface permanent magnet synchronous motor with the notch is used herein.
| Original language | English |
|---|---|
| Pages (from-to) | 168-173 |
| Number of pages | 6 |
| Journal | Journal of Magnetics |
| Volume | 24 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2019 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Air-gap permeance
- Analytical method
- Conformal mapping
- Notched motor
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