【摘 要】
：
This study shows how to select the proper size of the battery in the stand-alone hybrid power systems with different solar and wind penetration degrees,in order to achieve the lowest levelised cost of
【机 构】
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SERIS,Singapore;National University of Singapore,Singapore
【出 处】
：
SNEC 第十届(2016)国际太阳能产业及光伏工程(上海)论坛
论文部分内容阅读
This study shows how to select the proper size of the battery in the stand-alone hybrid power systems with different solar and wind penetration degrees,in order to achieve the lowest levelised cost of electricity (LCOE).In areas far away from the main electricity grids s coverage,stand-alone hybrid power systems with renewable energies are an economic alternative.The battery is an indispensable component of the system while integrating the renewable energies.Properly sizing the battery of the system is an important step to guarantee its reliability and low cost.This study accepts the dispatch-coupled sizing method by integrating the battery into the operation of the generation units in the system,and formulates this application problem using the optimal control fashion.Two renewable energy sources--solar photovoltaic panels and wind turbines--are considered,together with traditional diesel generators.Penetration level is used as the lever to indicate the different levels of the renewable integration in the system.The non-dominated sorting genetic algorithm-Ⅱ (NSGA-Ⅱ) is adapted for this specific application.The numeric results of the system planning show that with 0,50% and 100% degrees of solar and wind penetrated,the LCOE achieved can be as low as 0.332,0.249 and 0.180 SGD.
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