Your English writing platform
Discover LudwigExact(4)
Because the repetitive control systems by nature have introduced unstable controller structures, control signal amplitude constraints commonly encountered in control system applications need to be considered with special care.
However, controlling the roll seemed quite dangerous for the robot with a sometimes unstable controller.
In this paper a model validation approach is presented that generalizes the (in) validation of possibly unstable models on the basis of closed-loop experiments with a stabilizing, but possibly unstable, controller.
As the main reason for unstable controller operation in the off-design case the difference between actual and predicted phase angle of the disturbances at the position of the error sensor is identified.
Similar(56)
In a recent paper, a simple PID controller was proposed by the authors, leading to an internally unstable controlled plant.
Analysis is carried out to show that the pipelined implementation of the unstable digital controller using the proposed periodic look ahead system model can maintain the closed loop control system stability.
However, existing methods for the design of look ahead system models are only for stable systems and hence are not applicable to unstable digital controllers for closed loop system control.
In this paper a periodic method is presented for the design of look ahead system models for unstable digital controllers.
In some cases, the uncertainties in the plant make the repetitive control system unstable, even though the controller was designed to stabilize the nominal plant.
The structure extends the standard IMC structure for stable processes to unstable processes and controllers do not have to be converted to conventional ones for implementation.
It is also shown that to design robust controller for Unstable FOPTD, PID controller should be preferred to PI controller.
Write better and faster with AI suggestions while staying true to your unique style.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com