Abstract
A deadbeat flux level control system for a direct field oriented induction servo motor drive using an adaptive rotor flux observer is proposed. In this system, the adaptive rotor flux observer of a full-order type is used to construct the direct field oriented controller and to keep good performance of the deadbeat controller in spite of parameter variations of the equivalent circuit of an induction servo motor. The stator and rotor resistances are identified on the basis of the adaptive control theory. The fundamental characteristics of the system are discussed on the basis of experimental and simulation results. The authors describe the high horse power induction servo motor driven by this proposed system which has high efficiency and good dynamic response.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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