October 2020
Intermediate to advanced
450 pages
15h 32m
English
Content preview from Electrotechnical Systems
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172 Electrotechnical Systems
reference value, with the help of the switch circuit that is similar to one shownin
Figure 5.3. The controller is fullled in accordance with the diagrams shown
in Figure 5.6 or 5.7. When during acceleration ω begins to exceed the reference
value, the limiter output decreases. Operation at the speed mentioned earlier takes
place, with the rated emf value remaining constant.
Some variations in the use of the described control methods are shown in
model5_1 – model5_3. DCM with a separate excitation 120 kW, 550B, 1760 rpm,
η=0.9, and I
fnom
= 10 A is used for simulation. Coefcient L
af
is computed as
ω
nen
n
T
I
==
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