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This paper develops an optimal H∞ state feedback controller for a quarter-car active suspension system application. The plant parameters and performance requirements are borrowed from a prototype in the literature. The control design is done using convex optimization with linear matrix inequality constraints, which ensures a very fast and efficient computation of the controller, without trial and...
In the process industry the loop problem is how to choose a suitable set of PID parameters because of their influence on the asymptotic stability of the system. This paper develops a PID control algorithm based on Internal Model Control (IMC) design for linear and nonlinear control systems in the discrete-time domain under satisfactory performance. Compared with traditional feedback controllers, IMC...
This paper proposes multivariable PI control strategies for humidity and temperature of neonate incubator loop This process is a TITO system (Two Input Two Output). The transfer function matrix was identified using closed loop step response through sequential method that decouples the TITO system into four independent loops. Models of three parameters were used for the system loops due to simplicity...
In this work, a systematic method for self-tuning fuzzy PID control for SISO and MIMO systems is developed with practical application. The procedure consists in fuzzy self-tuning the parameters of a conventional PID controller located in the forward loop of the process. Fuzzy rules are used to determine the set of PID gains, based on the representation of human knowledge on how the margin of gain...
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