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The problem of controlling a Permanent Magnet Synchronous Motor is approached in this paper eliminating the necessity of including a speed sensor and without knowledge of the (constant) load torque. The proposed controller is obtained by equipping a well-known state-feedback scheme with an observer for estimating the speed and an adaptation law for the unknown perturbation. The closed-loop is shown...
This paper introduces the stability analysis for the so-called intermediate-tuning PID controller. Thus, each of the three PID parameters is proposed to lie within the convex hull of two extreme values, being defined as the optimal tuning settings for servo and regulation modes respectively. The result ensures that all the PID controllers generated for each frozen value of the interpolating parameters...
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