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   Adaptive Sliding Mode Control of MEMS AC Voltage Reference Source  
   
نویسنده ranjbar e. ,mehrnezhad a. ,suratgar a.a.
منبع journal of control science and engineering - 2017 - دوره : 2017 - شماره : 0
چکیده    The accuracy of physical parameters of a tunable mems capacitor,as the major part of mems ac voltage reference,is of great importance to achieve an accurate output voltage free of the malfunctioning noise and disturbance. even though strenuous endeavors are made to fabricate mems tunable capacitors with desiderated accurate physical characteristics and ameliorate exactness of physical parameters' values,parametric uncertainties ineluctably emerge in fabrication process attributable to imperfections in micromachining process. first off,this paper considers applying an adaptive sliding mode controller design in the mems ac voltage reference source so that it is capable of giving off a well-regulated output voltage in defiance of jumbling parametric uncertainties in the plant dynamics and also aggravating external disturbance imposed on the system. secondly,it puts an investigatory comparison with the designed model reference adaptive controller and the pole-placement state feedback one into one's prospective. not only does the tuned adaptive sliding mode controller show remarkable robustness against slow parameter variation and external disturbance being compared to the pole-placement state feedback one,but also it immensely gets robust against the external disturbance in comparison with the conventional adaptive controller. the simulation results are promising. © 2017 ehsan ranjbar et al.
آدرس department of electrical engineering,amirkabir university of technology (aut),424 hafez ave.,tehran, ایران, department of electrical engineering,amirkabir university of technology (aut),424 hafez ave.,tehran, ایران, department of electrical engineering,amirkabir university of technology (aut),424 hafez ave.,tehran, ایران
 
     
   
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