论文标题
基于太阳可变性指数的电池储能系统的最佳容量,以平滑PV柴油微电网中的功率波动
Optimal Capacity of a Battery Energy Storage System based on Solar Variability Index to Smooth out Power Fluctuations in PV-Diesel Microgrids
论文作者
论文摘要
电池储能系统可以与光伏(PV) - 柴油微电网集成在一起,作为一种使技术通过平滑PV系统的功率波动来增加PV系统的渗透并帮助微电网的稳定性。本文的目的是得出平滑电池的最佳容量与日常太阳辐照度的变化之间的相关性。在澳大利亚11个地点的整个日历年中,将两种常用的平均平均平均平滑技术和坡度控制控制的平均水平和坡道控制的技术应用于整个日历年。然后,本文根据线性回归介绍了开发的经验模型,以估算电池的最佳能力,而无需使用详细的仿真研究。通过MATLAB中的数值模拟研究来验证开发技术的性能。该研究表明,经验模型在使用移动平均平滑技术时提供了合理准确的估计,但在坡道速率控制技术下的精度有限。
Battery energy storage systems can be integrated with photovoltaic (PV)-diesel microgrids, as an enabling technology to increase the penetration of PV systems and aid microgrid stability by smoothing out the power fluctuations of the PV systems. The aim of this paper is to derive correlations between the optimal capacity of the smoothing batteries and variabilities in daily solar irradiance. Two commonly used smoothing techniques of moving average and ramp rate control are applied on a real solar irradiance dataset with a 1-minute resolution for a full calendar year across 11 sites in Australia. The paper then presents the developed empirical model, based on linear regressions, to estimate the optimal capacity of the batteries without requiring the use of detailed simulation studies. The performance of the developed technique is validated by numerical simulation studies in MATLAB. The study demonstrates that the empirical model provided reasonably accurate estimates when using the moving average smoothing technique, but had limited accuracy under the ramp rate control technique.