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Power Electronics and Motor Drives
book

Power Electronics and Motor Drives

by Bogdan M. Wilamowski, J. David Irwin
October 2018
Intermediate to advanced content levelIntermediate to advanced
1015 pages
40h 24m
English
CRC Press
Content preview from Power Electronics and Motor Drives
Permanent Magnet Synchronous Motors 6-31
Figure 6.34 shows a graphical representation of the control strategies presented above, in the (i
d
, i
q
)
plane. In such a plane, the constant current loci are circles, the constant ux linkage loci are ellipses, and
the constant torque loci are hyperbolae. e critical conditions are respectively shown by the current-
limit circle and the voltage-limit ellipse in the (i
d
, i
q
) plane. e current vector satisfying both constraints
of voltage and current must be inside of both the current-limit circle and the voltage-limit ellipse.
According to both voltage and current constraints, the optimum current vector ...
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Publisher Resources

ISBN: 9781439802861