Ahmadreza Tabesh

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A stand-alone circuit with ultra low power consumption is described and demonstrated in this paper which adaptively maximizes the harvested power from a vibrating piezoelectric element. The proposed circuitry consists of an ac-dc voltage rectifier connected to a battery via a switch-mode dc-dc converter. The converter is simply controlled by three(More)
—This paper presents a power transfer matrix model and multivariable control method for a doubly-fed induction generator (DFIG) wind energy system. The power transfer matrix model uses instantaneous real/reactive power components as the system state variables. It is shown that using the power transfer matrix model improves the robustness of controllers as(More)
This paper presents a characterization method for measuring model parameters of a piezoelectric bending beam energy harvester. In the proposed method, all parameters except coupling coefficient are obtained through a simple electrical test which facilitates the characterization procedure and enhances the accuracy of measurements. In the suggested method,(More)