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Decentralized PI controller with Coefficient Diagram method incorporating feedforward controller based on inverted decoupling for two input – two output system

Wutthithanyawat Chananchai, Wangnipparnto Santi

Przegląd Elektrotechniczny

2020

R. 96, nr 9

159--166

A decentralized PI controller for a TITO system of Wood-Berry distillation column process combined with inverted decoupling is designed by using the coefficient diagram method (CDM) with feedforward controller (FFC). The ability of CDM and CDM with FFC methods to design controllers for the desired transient response has been investigated for TITO system. By using the CDM adding FFC, a good and competitive performance can be achieved with faster settling time that the slight percent overshoot is neglected although an increasing control signal is provided.

Przedstawiono sterowanie procesem destylacji w systemie dwa wejścia-dwa wyjścia przy wykorzystaniu metody Coefficient Diagram ze sterownikiem typu feedforward. Osiągnięto skrócenie czasu ustalania przy małym przeregulowaniu.

Air fuel ratio control using sliding modes.

Monsees G., Spurgeon SK., Puleston P.

Systems Science

2000

Vol. 26, nr 3

97-108

The strong demand for low emissions from spark ignition engines alongside the introduction of microcomputers in cars has increased the attention paid to fuel injection control. Initially, controllers were in feedforward configuration and look-up tables were employed. Later feedback configurations emerged. We use a combined approach. A feedforward controller is used based on simple equations and coarse approximations. A sliding mode feedback controller is added to achieve the desired performance. Nonlinear simulation results demonstrate the efficacy of the approach.