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Browsing by Subject "hydraulic wind power systems"
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Item Energy Storage Techniques for Hydraulic Wind Power Systems(IEEE, 2015-10) Vaezi, Masoud; Izadian, Afshin; Department of Engineering Technology, IU School of Engineering and TechnologyHydraulic wind power transfer systems allow collecting of energy from multiple wind turbines into one generation unit. They bring the advantage of eliminating the gearbox as a heavy and costly component. The hydraulically connected wind turbines provide variety of energy storing capabilities to mitigate the intermittent nature of wind power. This paper presents an approach to make wind power become a more reliable source on both energy and capacity by using energy storage devices, and investigates methods for wind energy electrical energy storage. The survey elaborates on three different methods named “Battery-based Energy Storage”, Pumped Storage Method, and “Compressed Air Energy Storage (CAES)”.Item Piecewise Affine System Identification of a Hydraulic Wind Power Transfer System(IEEE, 2015-11) Vaezi, Masoud; Izadian, Afshin; Department of Engineering Technology, School of Engineering and TechnologyHydraulic wind power transfer systems exhibit a highly nonlinear dynamic influenced by system actuator hysteresis and disturbances from wind speed and load torque. This paper presents a system identification approach to approximate such a nonlinear dynamic. Piecewise affine (PWA) models are obtained utilizing the averaged nonlinear models of hysteresis in a confined space. State-space representation of PWA models is obtained over the allocated operating point clusters. The experimental results demonstrate a close agreement with that of the simulated. The experimental results and simulation show more than 91% match.