Smart Mater. Struct. volume 24, issue 1, P015012 2014 DOI: 10.1088/0964-1726/24/1/015012 View full text
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Yanfang Liu, Jinjun Shan, Ulrich Gabbert

Abstract: This paper presents the control system design for a piezoelectric actuator (PEA) for a high-speed trajectory scanning application. First nonlinear hysteresis is compensated for by using the Maxwell resistive capacitor model. Then the linear dynamics of the hysteresis-compensated piezoelectric actuator are identified. A proportional plus integral (PI) controller is designed based on the linear system, enhanced by feedforward hysteresis compensation. It is found that the feedback controller does not always impro…

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