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Battery energy storage (BES) is an indispensable resource in stand-alone microgrids. A reliable and cost effective microgrid operation can be achieved when the BES is optimally designed and deployed. The BES lifetime, however, is greatly impacted by its operation where two important operation factors must be considered to prolong its lifetime, namely the depth of discharge and the number of cycles...
This paper analyzes the battery capacity degradation under different state of charge(SOC) ranges, which indicates that battery capacity degradation can be notably reduced by adjusting the way of charging electric vehicles(EVs). A customary way of charging is defined according to practical driving data. Economic analysis and numerical example, including ideal way of charging(IWC), the worst way of...
Battery energy storage (BES) has a critical role in standalone microgrids to improve reliability and reduce operation costs. Two major factors affecting the economic viability of integrating a BES to a microgrid are its investment cost and lifetime. The BES investment cost greatly depends on its size, while the BES lifetime, which can be defined as the total number of charge/discharge cycles that...
The high investment cost associated with upgrading utility grid to supply remote area's demand for electricity makes the implementation of standalone microgrids inevitable. These microgrids normally consist of a mix of energy sources such as diesel generators, photovoltaic arrays, wind turbines, and fuel cells. In order to improve the microgrid reliability, reduce its operation cost, and address operational...
The electric power system is under rapid development under the context of smart grid. As electric demand evolves, the power system must evolve too. New loads in the system are changing the ways system operators ensure system security. One such load recently attracting attention are plug-in hybrid electric vehicles (PHEVs). Seen as the stepping stone to an all electric transportation sector, PHEVs...
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