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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
Fundamentals of AC–DC–AC Converters Control and Applications 16-31
Assuming initial steady-state operation,
m
=
mc
= const. and U
dc
= U
dcc
= const., the transfer function
of the AC–DC–AC converter–fed IM drive can be described.
Based on above considerations, it can be concluded that introduced active PF has no negative impact
on the line current. is can be derived analytically. Please consider rotating reference frame concur-
rently with VF. With assumption that the system is decoupled, and meets the UPF condition, i.e., I
Lx
= 0,
the following equations can be derived:
L
dI
dt
U U RI
Ly
Ly py Ly
=
(16.79)
C
dU
dt
I
U
U
I
dc
Ly
py
dc
load
=
(16.80)
L
dI ...
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Publisher Resources

ISBN: 9781439802861