Modeling and Control Strategies of an Intensified System (Microreactor) with Time Delay Compensation

摘要

A theoretical process model was developed for microreactors where the conservation of mass and energy balance is treated as plug-flow reactor to study the control strategies and closed-loop performance of an intensified system. The resulting second-order plus time delay and numerator dynamic process model produced a high order of controller formulation, i.e., a proportional-integral-derivative-derivative-derivative (PID3). Lower time delay and smaller closed-loop time constant yield a better set-point tracking and disturbance rejection. Classical PID controllers could also be achieved by truncating the high-order term in the higher-order dominant system of controller formulation into the desired form whilst maintaining its stability. The simulation result reveals that the classical PID in series with second-order filter incorporated with time delay compensation demonstrates acceptable closed-loop performance with low IAE compare to standard direct synthesis method.