Stevenson J. Power system analysis
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CHAPTER 3 THE SYNCHRONOUS MACHINE
and columns in Eq. (3.42). This property is most important as it ensures that
power in the a, b, and c variables is not altered by P, as discussed in Sec. 8.9.
The currents, voltages, and ux linkages of phases a, b, and c are transformed
by P to d, q, and 0 variables as follows:
ld
t
a
lq
-
P
lb
(
3 .43
)
1
0
Ie
The P-transformation denes a set of currents, voltages, and ux linkages for
three
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