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Article
Tracking Trajectories in a Continuous Anaerobic Bioreactor Employing a Nonlinear Proportional Controller
International Journal of Chemical Reactor Engineering (2009)
  • M. Isabel Neria-Gonzalez
  • Ricardo Aguilar-López
Abstract
This work is related to the tracking of sulfate concentration trajectories in a continuous anaerobic bioreactor, where Desulfovibrio alaskensis is considered for different operation purposes. A new design of a class of nonlinear proportional control law with an adaptive gain was proposed. The proposed controller was applied to the mathematical bioreactor's model with the kinetics experimentally corroborated; this describes the dynamics of biomass, sulfate and sulfide concentrations. The open-loop stability conditions of the optimum set points and the corresponding closed-loop performances were analyzed. The proposed control law is able to track trajectories, despite sustained disturbances. An Internal Model Control (IMC) Proportional-Integral Controller was implemented for comparison purposes and the corresponding performances were illustrated via numerical experiments.
Keywords
  • anaerobic bioreactor modeling,
  • nonlinear proportional controller,
  • tracking trajectories
Publication Date
July 14, 2009
Citation Information
M. Isabel Neria-Gonzalez and Ricardo Aguilar-López. "Tracking Trajectories in a Continuous Anaerobic Bioreactor Employing a Nonlinear Proportional Controller" International Journal of Chemical Reactor Engineering Vol. 5 (2009)
Available at: http://works.bepress.com/ricardo_aguilar_lopez/5/