Control for improving induction transient response by excitation angle control
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United States of America Patent
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-
Aug 9, 1988
Issued Date -
N/A
app pub date -
Jul 8, 1987
filing date -
Dec 30, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A variable frequency AC induction motor servo control system wherein slip is momentarily increased in response to error signal transients. In a preferred embodiment, a phase shift is introduced in the energizing stator current as the servo velocity error signal increases over at least the lower portion of the error signal range, the maximum phase shift being between 45.degree. and 90.degree..
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