Jae Sik Lim

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In this paper we propose a design method of discrete-time multivariable PID controllers via LMI optimizations. A discrete-time PID controller is formulated as a static output feedback controller for an augmented system and its parameters are found by a solution of LMI optimization problems. Three optimization problems are presented. One of them is based on(More)
This paper presents a modeling and a controller design for a hybrid wind turbine generator with a battery storage system and a dumpload. The proposed control scheme is based on the robust tracking controller. In the simulation study, the proposed robust tracking controller (RTC) is compared with the conventional proportional-integral (PI) controller.(More)
In this paper, we propose an efficient receding horizon control strategy for offset free regulation of input constrained uncertain systems under the assumption that the reference state for tracking and the corresponding input are known. A proportional-integral controller is used. Off-line LMI formulations are derived to obtain a feasible and invariant set(More)
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