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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
Switched-Reluctance Machines 7-21
With only ve terms in the polynomial representation, a very good t can be obtained. is is shown in
Figure 7.A.6 for the aligned inductance case, and in Figure 7.A.7 for the midway inductance case.
e analysis shows that using the polynomial approximation provides a very good approximation
for the Fourier series coecients in representing inductance and its current dependency [15,16]. Now it
is possible to write the Fourier expansion coecients in terms of the aligned, midway, and unaligned
2.5
2
1.5
1
0.5
0
0 10 20 30 40 50 60 70 80 90
Inductance versus current for midway position (θ = –15 °)
Current (A)
Inductance ...
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Publisher Resources

ISBN: 9781439802861