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This paper proposes a new plant/controller design integration framework that seeks the best pair of the plant and the controller for the best possible closed-loop performance in Hscr2 control. The framework is further equipped with a symbolic-numeric hybrid optimization approach to effectively achieve the optimum. In the suggested approach, a recent algebraic tool called the Sum of Roots is firstly...
The paper investigates the problem of designing a digital controller with guaranteed performance for a continuous-time plant with time-delay. The proposed design technique is based on the parametric transfer function concept and numerical optimization.
Taking unfinished parts, that is, parts' work-in-progress (WIP), as the background, the PI control algorithm is proposed to apply for WIP control in discrete production systems and the cascade control of PI controllers is suggested. Designing of PI controllers is transformed into an optimization problem on the frequency domain, so as to guarantee the stability and robustness of PI controllers' parameters...
In this paper, a new robust and optimization based nonlinear controller with respect to a certain kind of nonlinear disturbed systems is proposed based on control Lyapunov functions (CLF) concept and receding horizon control (RHC) scheme. This new controller can be divided into two components, one is the robust control law with measurable disturbance information; another is the robust receding horizon...
At runtime, an embedded control system can switch between alternative functional modes. In each mode, the system operates by using a schedule and controllers that exploit the available computation and communication resources to optimize the control performance in the running mode. The number of modes is usually exponential in the number of control loops, which means that all controllers and schedules...
The paper presents using the shuffled frog leaping algorithm (SFLA) to optimally tune parameters of a fuzzy logic controller stabilizing a ball and beam system at its equilibrium position. The SFLA is a meta-heuristic search method inspired from the memetic evolution of a group of frogs when seeking for food. It consists of a frog leaping rule for local search and a memetic shuffling rule for global...
Integrated design of structure-control combined system enhances overall performance. Classical two-step sequential or iterative designs served as a guide to improve the performance. However, this separate-discipline approach fails to guarantee overall optimality. Recently, simultaneous design methods have been proposed via non-convex numerical optimization of the parameters of both plant and controller...
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