H2RES2 simulator. A new solution for hydrogen hybridization with renewable energy sources-based systems

Abstract

This paper presents a new simulator for Hydrogen hybridization with Renewable Energy based Systems. The aim of this simulator is to provide a new solution for testing different energy management strategies of hydrogen hybridization based on renewable systems, in order to optimize them for implementation. The simulator uses the open architecture philosophy and has been developed in MATLAB ® -SIMULINK environment. Its main feature is calculating technical and economical parameters for a deepened analysis of influences on energy management strategies. It considers each element of the hybrid system and the whole system function. A simulation case shows the proper functioning of the simulator.

Hydrogen vs. Battery in the Long-term Operation. A Comparative Between Energy Management Strategies for Hybrid Renewable Microgrids

“…The microgrid includes different RES power generation systems on several kW scales, together with similar scale hydrogen and battery storage systems. The architecture integrates a mixed type, AC/DC electrical topology presenting a high-voltage DC bus (400 V DC) and a standard 1ph-230 V/3ph-400V AC bus, Figure 1 [22].…”

“…The input data are radiation, G, ambient temperature, T a , and wind speed, v, obtained by PV-GIS satellite data for the microgrid geographical location (database from 2007 to 2017) [47]. A typical residential load profile has been considered [22]. Each component is parameterized according to the specifications of the simulated system, as discussed in Section 3.…”

“…On the other hand, in the battery-priority strategy, the battery bank is used as the primary energy backup, using the hydrogen systems only when the SOC is outside of the allowed operation range [22]. The hydrogen loop (electrolyzer and fuel cell) is used as a secondary backup when the batteries are unavailable.…”

“…The control mechanisms described in the literature range from simple power balance strategies based on control variable monitoring (maintaining each component in its suitable operation condition range) [5,6,21,22], up to complex control strategies such as load management based on baseload and peak load [23] hierarchical control (master-slave) [24,25], model predictive control [4,26], global optimization via objective functions [27], self-optimization strategies [24] and fuzzy logic [27][28][29] and genetic algorithms [30]. Hydrogen-priority strategy in small scale hybrid microgrids with a hydrogen battery storage system is quite uncommon in scientific literature, except for few studies with combined solutions [6,21,31] or hydrogen-only storage systems [4].…”

“…Hydrogen-priority strategy in small scale hybrid microgrids with a hydrogen battery storage system is quite uncommon in scientific literature, except for few studies with combined solutions [6,21,31] or hydrogen-only storage systems [4]. Battery-priority strategies are the typical high-level control systems implemented for short/medium-term microgrid management found in the literature [5,20,22,27,30,32]. A comprehensive review of different microgrid management systems can be found in [33].…”