کنفرانس بین المللی کنترل ، ابزار دقیق و اتوماسیون

صفحه اصلی / نهمین کنفرانس بین المللی کنترل ، ابزار دقیق و اتوماسیون

Rejection of Sinusoidal Disturbance of Unknown Frequency in Linear Systems with Unknown Input Delay

نویسندگان :

ٍٍEhsan Shahmoradi¹ Mohsen Mojiri²

1- Isfahan University of Technology 2- Isfahan University of Technology

کلمات کلیدی :

sinusoidal disturbance،unknown frequency،predictor feedback،modified SOGI-FLL،partial differential equation،unknown input delay

چکیده :

We present a method for rejection of a sinusoidal disturbance with unknown frequency acting on unstable LTI plants with unknown input delay. In this method, we use modified second order generalized integrator frequency locked-loop (Modified SOGI-FLL) for frequency estimation and building two orthogonal sinusoidal signals, which by applying algebraic operations on them, the disturbance rejection law is built. Since the plant is unstable with an unknown input delay, we use the predictor feedback and its delay update laws for stabilizing and delay estimation. Simulation results show the well performance of the method.

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