Slide 8
Slide 8 text
8
Target of Surrogate Model
The maximum output control is
performed with following equations
𝑇𝑎𝑣𝑔
= 𝑃
𝑛
𝛹𝑎
𝐼𝑎
cos 𝛽
+
1
2
𝐿𝑞
− 𝐿𝑑
𝐼𝑎
2 sin 2𝛽
𝑁𝑙𝑖𝑚
=
𝑉𝑜𝑚
𝛹𝑎
− 𝐿𝑑
𝐼𝑎
sin 𝛽 2 + 𝐿𝑞
𝐼𝑎
cos 𝛽 2
✓ Predict the motor parameters under each current vector
condition with surrogate models
N-T characteristics
Rotor geometry
Predicting
N
T
Motor parameters
L
d,
L
q
β
I
a
Ψ
a
I
a
PM flux linkage
d-, q-axis inductance
𝛹𝑎
= 𝑓 𝐼𝑎
, 𝐱𝑔𝑒𝑜𝑚
𝐿𝑑
= 𝑔 𝐼𝑎
, 𝛽, 𝐱𝑔𝑒𝑜𝑚
𝐿𝑞
= ℎ 𝐼𝑎
, 𝛽, 𝐱𝑔𝑒𝑜𝑚
Learn the relationship
between rotor geometry,
current conditions, and
motor parameters
𝐼𝑎
: Armature current
𝛽: Current phase angle
𝐱𝑔𝑒𝑜𝑚
: Geometrical
parameter vector
𝑃𝑛
: Number of pole pairs,
𝑅𝑎
: Winding resistance,
𝑉𝑜𝑚
: Induced voltage limit
Independent
of current
phase angle
Computing