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By classifying the ways through which such load disturbance enters into the process, analytical controller formulae are correspondingly developed, based on a two-degree-of-freedom (2DOF) control structure that allows for separate optimization of load disturbance rejection from setpoint tracking.
Here an analytical controller is defined as the one whose implementation does not require solving a constrained optimization problem numerically.
Analytical controller formulae are given based on classification of the ways by which such load disturbance seeps into the process.
An analytical controller tuning method is then developed using an asymptotic constraint established thereby for reducing the influence of the slow process time constant on load disturbance rejection.
Furthermore, it is pointed out that analytical controller design is an important area where engine system design can make significant contributions.
Achieved results that extend the simple tuning proposed by Skogestad (2003) to a broader spectrum of nearly monotonic shapes are compared with the analytical controller tuning based on the double real dominant closed loop pole and then, on an example of a higher order dead-time dominant plant, with the results achieved by the Filtered Smith Predictor.
Similar(54)
An analytical MPC controller was designed for force control of a single rod electrohydraulic actuator.
An analytical H2 controller design approach of homogeneous multi-agent systems with time delays is presented to improve consensus performance.
Analytical PID controller tuning rules are proposed by a correct approximation function using desired closed-loop response technique.
Thus, it extends capabilities of the analytical MPC controllers to the field reserved so far for much more computationally expensive numerical MPC algorithms.
There are few analytical results on controller stability margins with respect to these errors.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com