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Cascade adaptive speed control off a thyristor-driven DC motor

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3 Author(s)
R. M. Stephan ; Universidade Federal do Rio de Janeiro, COPPE, Department of Electrical Engineering, Rio de Janeiro, Brazil ; V. Hahn ; H. Unbehauen

A cascade speed control strategy for a thyristor driven DC motor subjected to parameter variations is proposed. A dual mode adaptive inner current loop is cascaded with a model reference adaptive speed control loop. The scheme is implemented in a 16 bit microcomputer using a floating point coprocessor. Tests on a DC machine have been conducted. The proposed solution guarantees a stable and predefined performance under all operating conditions. Comparisons with a conventional analog speed control are made.

Published in:

IEE Proceedings D - Control Theory and Applications  (Volume:135 ,  Issue: 1 )