An experimental study of relay servo optimization using a series motor.
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Authors
Stockebrand, Archie P.
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Advisors
Date of Issue
1959
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Abstract
Use of the series motor in servomechanisms has been somewhat limited in the past, perhaps because other types permit linear techniques to be used in system design. It is the purpose of this paper to show by experimental means that the non-linearity of the series motor in fact provides the necessary characteristic to permit relay servo optimization by the use of switching criteria based simply on error and error rate. To reduce the probability that such a desirable characteristic might hold only for the specific motor tested, three split-field series motors of varying sizes were used in the investigation. Various motor supply voltages were used, including alternating current. Dead beat response to any size step displacement input was found possible in all cases using only error and error rate control as switching criteria. Response to sinusoidal and ramp inputs was also investigated.
Type
Thesis