In this paper, a systematic procedure is proposed for the generalized design of decoupling multivariable controller, which may result in a complete decoupling, partial decoupling or no decoupling, to achieve a better disturbance rejection response. Before the decoupling, a relative load gain (abbr. RLG) is defined to determine which control loops need to be decoupled and which control loops don...

Abstract—In this work, the IMC-PID controller cascaded filter based on Internal Model Control (IMC) scheme is systematically proposed for the simplified decoupling control system. The simplified decoupling is firstly introduced for multivariable processes by using coefficient matching to obtain a stable, proper, and causal simplified decoupler. Accordingly, transfer functions of decoupled appar...

This paper presents a precisely synthesized full order as well reduced continuous time large signal and small model of hybrid phase-duty controlled triple-active bridge (TAB) converter based on higher harmonic frequency inclusive averaging model. Such helps to accurately predict the steady state circuit parameters such inductor current, average output voltage, voltage ripple etc. that in turn c...

In this work, a polystyrene (PS)-polydimethylsiloxane (PDMS) hybrid device was developed to enable the integration of cell culture with analysis by microchip electrophoresis and electrochemical detection. It is shown that this approach combines the fundamental advantages of PDMS devices (the ability to integrate pumps and valves) and PS devices (the ability to permanently embed fluidic tubing a...

Highly interactive systems are ill-conditioned and highly sensitive to model uncertainty, which imposes limitations to achievable closed-loop performance. In this paper, the goal is to develop an identification testing framework meaningful to highly interactive systems based on the application of constrained minimum crest factor multisine signals. “Plant-friendliness” in the design procedure is...

The paper addresses the problem of testing various control configurations for binary distillation columns. Analyzing from plantwide control point of view the place of distillation column within the plant, the result will be the best control configuration. The proposed application Test BCC is a very useful tool to evaluate the resulted control configuration for distillation columns. First, it is...

In this paper, comparative performance analysis of various binary coded PSO algorithms on optimal PI and PID controller design for multiple inputs multiple outputs (MIMO) process is stated. Four algorithms such as modified particle swarm optimization (MPSO), discrete binary PSO (DBPSO), modified discrete binary PSO (MBPSO) and probability based binary PSO (PBPSO) are independently realized usin...

In this report, the objective is to study how to tune PI controllers in a decentralized control structure for multivariable systems. Robustness with respect to (i) parameter changes, (ii) multivariable interactions including opening and closing other loops and (iii) input saturation are tuning criteria. The SIMC tuning rules are extended to the proposed ‘robust’ SIMC settings which takes expect...