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Controlled and safe hydrogen generation from waste aluminum and water, a new approach to hydrogen generation
(Multidisciplinary Digital Publishing Institute (MDPI), 2024-11-30)
Article
Open AccessA new method is proposed to generate hydrogen in situ at low pressure from powder-pressed recycled aluminum turnings activated with small amounts of NaOH and drops of water. The contribution of this system is that the user ... -
Selective harmonic compensation in SPC grid-forming converters for Iimproving power quality in weak grid
(Institute of Electrical and Electronics Engineers (IEEE), 2024-01-01)
Article
Open AccessThe expansion of renewable energy sources highly increased the number of grid-connected converters associated to PV and wind in power plants as well as in residential areas. The appearance of voltage harmonics, which are ... -
Detection of abnormal photovoltaic systems’ operation with minimum data requirements based on Recursive Least Squares algorithms
(2024-05)
Article
Open AccessIn the last years, the massive deployment of new photovoltaic (PV) power plants has launched the connection of PV inverters to the electrical network. A single medium-sized ground-mounted PV plant may have thousands of ... -
Detection of abnormal operation of PV inverters based on regressive prediction models with recursive least squares training
(Institute of Electrical and Electronics Engineers (IEEE), 2024-01-01)
Article
Open AccessThe large scale integration of photovoltaic (PV) power plants has launched the massive deployment of PV inverters. In fact, just a single multi-MW PV plant may have thousands of them, which can be also found isolated in ... -
Experimental energy performance assessment of a bifacial photovoltaic system and effect of cool roof coating
(Elsevier, 2023-11-02)
Article
Open AccessIn the quest for high albedo materials that boost the energy production of bifacial photovoltaic systems, a range of material already exists for reducing building roof surface temperatures, called cool roof materials. ... -
Battery and hydrogen energy storage control in a smart energy network with flexible energy demand using deep reinforcement learning
(2023-09-22)
Article
Open AccessSmart energy networks provide an effective means to accommodate high penetrations of variable renewable energy sources like solar and wind, which are key for the deep decarbonisation of energy production. However, given ... -
Control of a three-phase active transformer integrating energy storage
(2023-06-12)
Article
Open AccessThe high penetration of distributed energy sources is changing the paradigm of electrical networks control and management. Nowadays, power conversion systems associated to green energy plants are not only required to deliver ... -
Grid forming control for power converters based on an Inertial Phase Locked Loop (IPLL)
(Institute of Electrical and Electronics Engineers (IEEE), 2023-07-21)
Article
Open AccessInertia emulation is claimed to play a decisive role in the regulation and management of frequency in modern electrical systems. The support offered by renewable energy power plants and distributed generators is key to ... -
Grid-forming controller based on virtual admittance for power converters working in weak grids
(Institute of Electrical and Electronics Engineers (IEEE), 2023-07)
Article
Open AccessThe high penetration of distributed energy resources, based on power electronics, is giving rise to stability issues in the electrical network, as initially those plants were not required to provide either voltage or ... -
Control of energy storage system integrating electrochemical batteries and supercapacitors for grid-connected applications
(2018-10-09)
Article
Open AccessThe implementation of ancillary services in renewable energy based generation systems requires controlling bidirectional power flow. For such applications, integrated energy storage systems (ESSs) in such generation platforms ... -
Análisis comparativo de propiedades termo estructurales y eléctricas entre polietileno de alta densidad (HD-PE), y el HD-DE reforzado con neumáticos al final de su vida útil. Estudio de aplicación como dieléctrico
(2022-01-01)
Article
Open AccessEl propósito del presente trabajo pasa por analizar la permitividad y el factor de pérdidas tanto del polietile-no de alta densidad (HD-PE), como del compuesto de matriz polimérica (HD-PE)reforzado con neumáticos fuera de ... -
External inertia emulation controller for grid-following power converter
(2021)
Article
Open AccessThe advent of renewable energy has posed difficulties in the operation of power systems whose net inertia is becoming critically low. To face such challenges, grid-forming power has been one of the potential solutions ...
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