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This paper deals with the battery energy management for the case of isolated locations when they are equipped by wind turbines using energy storage devices. To cover the shortfall or the overflow of those kind of generation caused suddenly by the wind variation, the energy storage device is a necessity to improve our isolated wind farm. From this condition a great part of the energy distribution is...
This paper describes a modeling of a Microgrid using real time simulation platform and presents the results of the simulation. The Microgrid under study consists of a Photovoltaic (PV) system as an example of an unreliable resource and a battery representing an energy storage. The modeling approach and the study analysis performed are described. The model and operation scenarios have successfully...
In on-grid/off-grid wind energy conversion systems (WECS), a backup storage is usually required in order to deal with high and low energy generation situations and to make the system more autonomous. In this paper, a nonlinear energy management control scheme for a WECS which includes a battery-storage unit with the capability to operate in grid-connected and standalone modes is proposed. The main...
Intermittent renewable microsources in so-called MicroGrids will need to have plug-and-play functionality, therefore, will need to be integrated with local storage. The design of such cross-coupled nonlinear systems is complex and presently focuses on command tracking dynamics. In practice, the robustness of such systems to external disturbance inputs plays at least an equal role. This paper presents...
This paper presents a control scheme for autonomous operation of a doubly-fed induction generator (DFIG) based wind turbine system with an integrated battery storage system. The standalone DFIG feeds an electric load that is characterized to have linear and nonlinear load structures with varying reactive power demand and variation in system frequency. Therefore, a droop control is implemented by the...
Voltage unbalance or sag conditions generated by the power system faults can have a significant negative impact on the ASD's (Adjustable Speed Drives). A practical ride- through scheme based on supercapacitor/ battery as an energy storage device for ASD's is presented in this paper. Energy storage module is connected to support the DC-link voltage during power system faults. The performance of ASD's...
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