Sliding Mode Control with Adaptive Approaching Law for Bioreactor

Abstract

Bioprocesses have high nonlinearity and parameter uncertainty. In view of these specific natures of the bioreactor, system identification method was firstly used to linearize the nonlinear system and simplify the model of the biological reactor; then a new sliding mode controller with adaptive reaching law is designed for the reactor. The control method can not only analysis the sliding mode movement near or along the switching surface, but also design the dynamic process in trending segments of the system effectively, thus ensure good movement quality in the entire state space. Simulation results prove that the sliding mode control with adaptive reaching law can improve the control performance with negligible chattering and enhanced robustness.

Scientific Location between Rail Transit and Bus in China

“…The bus lines can be stayed partly to split the flows on the partial section which the passenger flows are over saturated of the transit lines [6]. If the over-saturated sections on the transit are only formed in the peak, then the part of bus line can only open in the peak time to save the resources; the passenger flow are focused in some prosperous areas, it is difficult to bear completely only by the transit, the public transport on the ground has to play the role of auxiliary splitting flow.…”