The System Dynamics Characterization and Controls Laboratory of Sun Microsystems has developed novel continuous system telemetry technology for proactive fault monitoring and “electronic prognostics” capabilities for all types of executing computing platforms. Central to the goal of designing and evaluating prognostic and control systems for enterprise computing platforms is first the ability t...

A nonlinear discrete-time control system forced by stochastic disturbances is considered. We study the problem of synthesis of the regulator which stabilizes an equilibrium of the deterministic system and provides required scattering of random states near this equilibrium for the corresponding stochastic system. Our approach is based on the stochastic sensitivity functions technique. The necess...

this paper presents a new optimization algorithm to design an optimal proportional, integral, derivative (pid) controller in hydro-turbine generator governor for damping output frequency oscillations. in this research, we utilize a stochastic and optimal based pid controller to control frequency-response of the hydro turbine. the proposed algorithm is employed to design an optimal pid controlle...

Battery systems gain popularity among users in residential household setups. In this setup, currently the main source of profitability is to increase photovoltaic (PV) self-sufficiency which highly dependent on battery system efficiency. We present a control approach based stochastic dynamic programming (SDP) suitable The optimization framework includes switched with standby losses, nonlinear m...

in this paper, we propose a new method for solving the stochastic advection-diffusion equation of ito type. in this work, we use a compact finite difference approximation for discretizing spatial derivatives of the mentioned equation and semi-implicit milstein scheme for the resulting linear stochastic system of differential equation. the main purpose of this paper is the stability investigatio...