Miñambres-Marcos Víctor Manuel, Guerrero-Martínez Miguel Ángel, Barrero-González Fermín, Milanés-Montero María Isabel
Power Electrical and Electronic Systems Research Group, Escuela de Ingenierías Industriales, Universidad de Extremadura, Avda. de Elvas, s/n, 06006 Badajoz, Spain.
Sensors (Basel). 2017 Aug 11;17(8):1856. doi: 10.3390/s17081856.
The power generation from renewable power sources is variable in nature, and may contain unacceptable fluctuations, which can be alleviated by using energy storage systems. However, the cost of batteries and their limited lifetime are serious disadvantages. To solve these problems, an improvement consisting in the collaborative association of batteries and supercapacitors has been studied. Nevertheless, these studies don't address in detail the case of residential and large-scale photovoltaic systems. In this paper, a selected combined topology and a new control scheme are proposed to control the power sharing between batteries and supercapacitors. Also, a method for sizing the energy storage system together with the hybrid distribution based on the photovoltaic power curves is introduced. This innovative contribution not only reduces the stress levels on the battery, and hence increases its life span, but also provides constant power injection to the grid during a defined time interval. The proposed scheme is validated through detailed simulation and experimental tests.
可再生能源发电本质上是可变的,可能包含不可接受的波动,而使用储能系统可以缓解这种波动。然而,电池成本及其有限的使用寿命是严重的缺点。为了解决这些问题,人们研究了一种将电池和超级电容器协同结合的改进方法。尽管如此,这些研究并未详细探讨住宅和大型光伏系统的情况。本文提出了一种选定的组合拓扑结构和一种新的控制方案,以控制电池和超级电容器之间的功率分配。此外,还介绍了一种基于光伏功率曲线确定储能系统规模以及混合分布的方法。这一创新成果不仅降低了电池的压力水平,从而延长了其使用寿命,还能在规定的时间间隔内向电网持续注入功率。所提出的方案通过详细的仿真和实验测试得到了验证。