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The scanning and tracking accuracy of piezoelectric mechanisms over broadband frequencies are limited due to inherent dynamic hysteresis. This phenomenon has been a key bottleneck in the use of piezoelectric mechanisms in fast precision scanning applications. This paper presents a systemic model identification and composite control strategy without hysteresis measurement for such applications. First,...
In this paper, the identification and control of linear dynamics with input Preisach hysteresis is presented without the measurement of hysteresis. Simulations indicate that the control action for the same reference can converge to different values and switch between several values under different PID controllers. Firstly, least squares estimation by singular value decomposition(SVD) is applied to...
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