2DOFTwo Degrees of Freedom
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In this work, 2DOF controller was applied to calculate the optimal temperature trajectory to reach desired properties in minimum time.
This on-line identification is also used for 2DOF controller.
In this study, on a semi-batch reactor by means of a simulation, 2DOF controller was tested and the effect of changes of the various parameters for a quality of the regulation process was monitored.
It can be seen that behaviour of adaptive PID controller and 2DOF controller are almost similar, both without oscillating and overshoots.
2DOF controller provides the highest rates of the feeding at the beginning of the process and then feeding fall until the zero-feeding is stopped for about 150 s.