Automatic tuning of Electro-Optical Director
Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Directors designed for observation and fire control in naval environments consist of a mechanical pedestal moved by two electrical motors. To meet the high demands on director precision, a servo solution based on feedback control is used. The digital servo controller has to be tuned to meet demands on performance and stability. This report presents methods for automatic tuning, intended to replace today’s manual tuning procedures. System identification based on relay feedback and recursive least-squares approximations are combined with the Ziegler-Nichols and AMIGO tuning procedures for PI controllers are evaluated.
Evaluations are performed in simulations, for which a SIMULINK model is constructed. Results indicate that the automatic tuning may perform well compared to the manual tuning used today, and that it could bring considerable reduction in the time required for tuning.
Place, publisher, year, edition, pages
2009. , 85 p.
Automatic tuning, Relay feedback, Recursive Least Squares approximation, Ziegler-Nichols, AMIGO, Anti-windup
IdentifiersURN: urn:nbn:se:kth:diva-105715OAI: oai:DiVA.org:kth-105715DiVA: diva2:571738
Subject / course
Master of Science in Engineering - Electrical Engineering