UPMCore UDP
The UPMCore UDP is used to create a single- or poly-layer U-type IPM core and PMs for IPM synchronous machines, or IPM brushless DC motors.
|
Property |
Description |
|
DiaGap |
Core diameter on gap side, or outer diameter. |
|
DiaYoke |
Core diameter on yoke side, or inner diameter. |
|
Length |
Core length. |
|
Poles |
Number of poles. |
|
DiaLimit |
Inner limited diameter of PM ducts |
|
ThkBridge |
Bridge thickness |
|
ThkWeb |
Web thickness |
|
AngOffOut |
Outer (web) angle offset |
|
ThkDuctOut |
Outer duct thickness |
|
ThkDuctIn |
Inner duct thickness |
|
ThkPostOut |
Outer post thickness |
|
ThkPostIn |
Inner post thickness, <0 for duct bottom corner radius |
|
ThkPostMid |
Center post thickness |
|
WidMagOut |
One-side width of outer magnets |
|
GapMagOut |
Two-side gap of outer magnets (ThkMagOut = ThkDuctOut – GapMagOut) |
|
WidMagIn |
Total width of inner magnets per pole |
|
GapMagIn |
Two-side gap of inner magnets (ThkMagIn = ThkDuctIn – GapMagIn) |
|
LenRegion |
Region length. |
|
InfoCore |
0: core; 1: magnets; 2: ducts; 3: inner magnet; 4: left magnet; 5: right magnet; 100: region. |
Most parameters for a UPMCore UDP are shown in the figure below except common parameters like DiaGap, DiaYoke, and Length.
Parameters of a UPMCore UDP with AngOffOut = -10°.
Note that when AngOffOut = 0, the edges of outer PM ducts between two adjacent poles are parallel. When AngOffOut > 0, the inner web thickness is smaller than the outer web thickness which is labeled as ThkWeb. When AngOffOut < 0, the inner web thickness is larger than the outer web thickness, as shown above.