Continuous time controller based on SMC and disturbance observer for piezoelectric actuators
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Yannier, Selim and Şabanoviç, Asif (2007) Continuous time controller based on SMC and disturbance observer for piezoelectric actuators. International Review of Electrical Engineering, 2 (6). pp. 861-869. ISSN 1827-6660
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Abstract – In this work, analog application for the Sliding Mode Control (SMC) to piezoelectric actuators (PEA) is presented. DSP application of the algorithm suffers from ADC and DAC conversions and mainly faces limitations in sampling time interval. Moreover piezoelectric actuators are known to have very large bandwidth close to the DSP operation frequency. Therefore, with the direct analog application, improvement of the performance and high frequency operation are expected. Design of an appropriate SMC together with a disturbance observer is suggested to have continuous control output and related experimental results for position tracking are presented with comparison of DSP and analog control application.
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