On Wed, 15 Sep 2004 09:40:37 +0000 (UTC), "Don Foreman"
wrote:

Probably would be a good idea to characterize it with a few experiments, as:

give excitation a step change and observe the time response of the generated
voltage.

Think the dynamics would change with load?



Would be a good move - what would be really nice is to
look at the short term changes with a storage scope.

Not sure how the dynamics will change with load - hopefully
not a lot. There are so many second order effects!

One interesting one is the effect of hysteresis in the
soft iron field circuit of the exciter alternator - sort of
minor electronic backlash within the servo loop. However my
present feeling is that, whoever designed the existing
regulator loop will have already solved most of these
problems for us.

Jim