RT Journal Article
T1 An Experimental Study of Power Smoothing Methods to Reduce Renewable Sources Fluctuations Using Supercapacitors and Lithium-Ion Batteries
A1 Benavides, Darío
A1 Arévalo, Paul
A1 Tostado-Véliz, Marcos
A1 Vera, David
A1 Escámez, Antonio
A1 Aguado-Sánchez, José Antonio
A1 Jurado, Francisco
K1 Recursos energéticos renovables
AB The random nature of renewable sources causes power fluctuations affecting the stability in the utility grid. This problem has motivated the development of new power smoothingtechniques using supercapacitors and batteries. However, experimental studies based on multiple renewable sources (photovoltaic, wind, hydrokinetic) that demonstrate the validity of powersmoothing techniques under real conditions still require further study. For this reason, this articlepresents a feasibility study of a renewable grid-connected system, addressing various aspects basedon power quality and energy management. The first of them is related to the fluctuations producedby the stochastic characteristics of renewable sources and demand. Two power smoothing algorithmsare presented (ramp rate and moving average) combining photovoltaic, wind, and hydrokineticsources with a hybrid storage system composed of supercapacitors and lithium-ion batteries. Then,the self-consumption for an industrial load is analyzed by studying the energy flows between thehybrid renewable energy sources and the grid. The main novelty of this paper is the operability of thesupercapacitor. The experimental results show that when applying the power smoothing ramp ratemethod, the supercapacitor operates fewer cycles with respect to the moving average method. Thisresult is maintained by varying the capacity of the renewable sources. Moreover, by increasing thecapacity of photovoltaic and wind renewable sources, the hybrid storage system requires a greatercapacity only of supercapacitors, while by increasing the capacity of hydrokinetic turbines, the batteryrequirement increases considerably. Finally, the cost of energy and self-consumption reach maximumvalues by increasing the capacity of the hydrokinetic turbines and batteries
PB IOAP-MDPI
YR 2022
FD 2022-11-09
LK https://hdl.handle.net/10630/25888
UL https://hdl.handle.net/10630/25888
LA eng
NO Benavides D, Arévalo P, Tostado-Véliz M, Vera D, Escamez A, Aguado JA, Jurado F. An Experimental Study of Power Smoothing Methods to Reduce Renewable Sources Fluctuations Using Supercapacitors and Lithium-Ion Batteries. Batteries. 2022; 8(11):228. https://doi.org/10.3390/batteries8110228
NO Partial funding for open access charge: Universidad de Málaga
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026