Stator

Stators have basic parameters and slots:

Parameter	Description	Default
num_slots	Number of Slots Q
num_slots_gen	Number of Slots in Model	m*Q/gcd(Q, 2p*m)
rlength	Relative iron length	1.0
mcvkey_yoke	Name of lamination material	dummy
mcvkey_teeth	Name of lamination material	dummy
fillfac	stacking factor of lamination	1.0
nodedist	Factor for node distance	1.0

Note

• if a value for num_slots_gen is missing its value is calculated from the number of slots Q and pole pairs p.

• the mcvkey parameters either reference a filename without extension (Example ‘M330-50A’) which must be found in the directory defined by the parameter magnetizingCurves of the Femag constructor or the name of an entry in the Magnetizing Curve object.

stator1

Name		Unit	Comment
tip_rh1	RH1	m
tip_rh2	RH2	m
slot_rf1	RF1	m
slot_width	SW	m
tooth_width	TW	m

Name	Parameter
stator2	slot_t1, slot_t2, slot_t3, slot_depth, slot_width, corner_width

statorRotor3

Name		Unit	Comment
slot_height	H	m
slot_h1	H1	m
slot_h2	H2	m
slot_width	SW	m
slot_r1	R1	m
slot_r2	R2	m
wedge_width1	B1	m
wedge_width2	B2	m
middle_line			0: none, 1: vert. 2: horiz., 3: vert+horiz
tooth_width	TW	m	overwrites B1, B2 if > 0
slot_top_sh			0: arc 1: line, 2: corner

stator4

Name		Unit	Comment
slot_height	H	m
slot_h1	H1	m
slot_h2	H2	m
slot_h3	H3	m
slot_h4	H4	m
slot_width	SW	m
slot_r1	R1	m
wedge_width1	B1	m
wedge_width2	B2	m
wedge_width3	B3	m

afm_stator

Name		Unit	Comment
slot_height	sh	m
slot_h1	h1	m
slot_h2	h2	m
slot_width	sw	m
slot_r1	r1	m
slot_r1	r2	m
yoke_height	hy	m

Name	Parameter
statorBG	yoke_diam_ins, slot_h1, slot_h3, slot_width, slot_r1, slot_r2, middle_line, tooth_width, tip_rad, slottooth
stator3Linear	slot_height, slot_h1, slot_h2, tip_slot, yoke_height, slot_r1, slot_r2, width_bz, tooth_width
afm_stator	slot_height, slot_h1, slot_h2, yoke_height, slot_width, slot_open_width, slot_r1, slot_r2
<filename>	(see User defined Stator Slots with FSL)
dxffile	(see User defined Stator Slots with DXF)

Note

All units are metric units.

User defined Stator Slots with FSL

If a Mako or FSL file that includes the definition of stator geometry exists and is readable it can be used for the model creation.

Example with file mystator.fsl:

machine = dict(
    name="Motor",
    ...
    stator=dict(
        mcvkey_yoke='dummy',
        mcvkey_shaft="dummy",
        mystator=dict()
    ),
    ...

Note

The file search path can be set with the parameter ‘templatedirs’ in the Femag or Builder class.

User defined Stator Slots with DXF

If a DXF file that defines the stator geometry exists and is readable it can be used to create the FSL of the model. All DXF conversion parameters are supported.

Example:

machine = dict(
    name="Motor",
    ...
    stator=dict(
        mcvkey_yoke='dummy',
        dxffile=dict(
            name="mystator.dxf",
            position='out',
            split=True
        )
    ),
    ...

Parameters	Description	Default
position	‘in’ or ‘out’
split	splits intersecting lines at their intersection-points	False
plot	creates the plot of the integrated object	False

Note

The split option is required only if intersecting lines have no common point.