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مجله مهندسی شیمی
جزئیات رویداد
همایش ، رویداد ، ژورنال
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  • adaptive and robust-adaptive control strategies for anaerobic wastewater treatment bioprocesses

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    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 686
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     this paper presents the design and analysis of adaptive and robust-adaptive control strategies for a class of anaerobic wastewater treatment processes. the design procedures are developed under the realistic assumption that both bacterial growth rates and influent flow rates are time-varying and uncertain, but some lower and upper bounds of these uncertainties are known. to achieve these control strategies, firstly, a state asymptotic observer and a robust interval observer for a class of bioprocesses are presented. secondly, by using these observers, adaptive, robust and robust-adaptive control schemes are developed and analyzed. the adaptive control structure is achieved by combining a linearizing control law with a state asymptotic observer and with a parameter estimator used for on-line estimation of unknown kinetics. the robust control structure is designed by combining a linearizing control law with an interval observer able to estimates a lower and an upper bound of unmeasurable states. also, the uncertain process parameters are replaced by their lower and upper bounds assumed known. the robust-adaptive controller uses a linearizing control law coupled with an interval observer for the unmeasured states, and with a parameter estimator. these approaches are applied to a particular wastewater treatment bioprocess based on anaerobic fermentation. the effectiveness of the proposed algorithms is validated by several numerical simulations.

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