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Homework Set #7 (ECE743)
Problem:
Assume a Ppole machine
r
r
c
r
em
i
W
P
i
T
θ
∂
∂
=
)
,
(
2
)
,
(
a)
Derive the expression for W
c
(i
abs
, i
′
abr
,
θ
r
).
b)
Show that
]
cos
)
(
sin
)
[(
2
r
ar
bs
br
as
r
br
bs
ar
as
ms
em
i
i
i
i
i
i
i
i
L
P
T
′

′
+
′
+
′

=
c)
Compute i
s
qs
, i
s
ds
, i
s
dr
, and i
s
qr
in terms of i
as
, i
bs
, i
′
ar
and i
′
br
.
d)
Show that Tem can be expressed as
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This note was uploaded on 07/17/2008 for the course ECE 743 taught by Professor Keyhani during the Spring '08 term at Ohio State.
 Spring '08
 Keyhani

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