Intelligent control of flywheel energy storage system associated with the wind generator for uninterrupted power supply

Abstract

Wind energy is currently the fastest-growing energy source in the world. However, the inherent characteristic of intermittent energy production, due to the stochastic nature of wind, still comprises the main drawback of wind power. To avoid such problems, various configurations have been reccomended in order to reduce output power variation. The paper concentrates on performance benefits of adding energy storage system with the wind generator in order to regulate the electric power delivered into the power grid. Compared with other means of energy storage, the flywheel energy storage system (FESS) is the best choice to solve power quality problems. In this paper, a FESS associated to a variable speed wind generation (VSWG) is investigated by presenting two control strategies applied to the storage system equipped with an induction machine; both techniques are studied and developed and consist of a field control (FOC) and a Fuzzy Logic Control (FLC). Simulation model is established in MATLAB/Simulink and comparative results are then reported.

RT-lab based real-time simulation of flywheel energy storage system associated to a variable-speed wind generator

“…In [7] proves that the FESS shows an attractive way to adjust the production to the consumption. Figure 3 illustrates the real-time model of the FESS-VSWG combination under study.…”

“…The research reported in [7] is focused on the analysis, modelling and non-real-time simulation of the Flywheel Energy Storage System Associated to a Variable-Speed Wind Generator using MATLAB/ Simulink, in the aim to resolve the problem of fluctuating power output. In this work we will describe the modeling and the real-time simulation of the system under study using RT-LAB OP 5600 simulator.…”

“…For this last situation, either the time stand size may be enlarged or the system template may be streamlined to execute in real time [6]. This paper will touch on real-time simulation of flywheel energy storage system associated to a variable-speed wind generator, in addition to the Matlab Simulink environment, which was used to perform the simulations mentioned in [7], The popular MATLAB/Simulink was used as an approach to build, edit and visualize graphical models in schematic form. The functional shema designs are the spring from which code may be systematically created, posted, loaded on target CPUs for real-time monitoring.…”

Comprehensive analysis of current research trends in energy storage technologies

“…Where 𝑟 𝑖 is the inner radius, 𝑟 𝑜 is the outer radius, and 𝑘 is the proportional constant. This storage system can be used for power quality, frequency regulation, fluctuation smoothing, and emergency bridging power [50].…”

“…In this storage system, compressed air is used to generate electricity. The compression can be expressed by using [50],…”