Symbol
|
Description
|
Brac
|
Actual magnet Br
|
Mod
|
Magnet OD
|
Mid
|
Magnet ID
|
gac
|
Actual physical air gap per side
|
gdash
|
Magnetic iar gap length per side
|
Kc
|
Carters coefficient
|
Lw
|
Breadloaf magnet width
|
Lmmin
|
Minimum magnet thickness
|
Am
|
Magnetic area of a magnet
|
Ag
|
Magnetic area of the air gap
|
Cphi
|
Flux concentration coefficient
|
Asby
|
Magnetic area of the stator back iron
|
Ast
|
Magnetic area of the stator tooth
|
Arby
|
Magnetic area of the rotor back iron
|
alphaSe
|
Slot electrical degrees
|
NssPerNrm
|
Slots per pole
|
Tou_pole
|
Pole span
|
Tcogpk_nosk
|
Peak cogging torque without skew
|
Tcogpk_sk
|
Peak cogging torque with skew
|
Tcog_ratio
|
Ratio of cogging toque with to without skew
|
alphaSk
|
Effective skew angle
|
Opti. skew
|
Optimal skew angle in terms of slots
|
Pm0
|
Magnetic permeance
|
Rg
|
Air gap reluctance
|
Pg
|
Air gap permeance
|
Pm
|
Magnetic permeance
|
Phir
|
Remanent flux
|
Fm
|
Magnet MMF
|
Phi
|
Flux
|
Phig
|
Airgap flux
|
Phig_av
|
Airgap average flux
|
Hm
|
Magnetic intensity
|
Hmpk
|
Peak magnetic intensity
|
Bm
|
Magnet flux density
|
PC
|
Permeance coefficient
|
Bg
|
Air gap flux density
|
Fg
|
Air gap MMF
|
Bsby_pk
|
Peak stator back iron flux density (from waveform)
|
Bsby_pkc
|
Peak stator back iron flux density (from calculation)
|
Bst_pk
|
Peak stator tooth flux density (from waveform)
|
Bst_pkc
|
Peak stator tooth flux density (from calculation)
|
Cbstc
|
Ratio of poles to slots for tooth flux calculation
|
Brby
|
Peak rotor back iron flux density (average)
|
Brbyc
|
Peak rotor back iron flux density (from calculation)
|