The hybrid energy systems, that combine renewable and conventional energy sources, are considered optimal solutions for off-grid power supply options in remote places or rural area. Because of the random behaviour of the renewable sources, the advantages due to the installation of these supply power systems, in terms of fuel saving, efficiency, emissions and costs, can be more appreciated if energy storage systems are integrated in the plants. The purpose of this study is to analyse the performance of a stand-alone hybrid power generation system that has to satisfy the energy demand of a stand-alone telecommunications radio base station located in a remote area. The hybrid plant consists of a photovoltaic (PV) power unit, a reciprocating engine and a hydrogen energy storage system. Thanks to an electronic control unit (ECU), the energy fluxes are managed in order to minimize the fossil fuel consumption and to maximize the energy production by the renewable source according to the selected system control strategy. The sizing and performance analysis have been carried out considering two designing constraints related to the contribution of the PV unit and of the reciprocating engine: in the first case the hybrid plant is sized to operate as “full renewable supply” electric power plant, in the second one the size of the PV unit is assigned according to the available space for its installation
A hybrid power generation system with renewable hydrogen energy storage for off-grid radio base stations
PERNA, Alessandra;
2015-01-01
Abstract
The hybrid energy systems, that combine renewable and conventional energy sources, are considered optimal solutions for off-grid power supply options in remote places or rural area. Because of the random behaviour of the renewable sources, the advantages due to the installation of these supply power systems, in terms of fuel saving, efficiency, emissions and costs, can be more appreciated if energy storage systems are integrated in the plants. The purpose of this study is to analyse the performance of a stand-alone hybrid power generation system that has to satisfy the energy demand of a stand-alone telecommunications radio base station located in a remote area. The hybrid plant consists of a photovoltaic (PV) power unit, a reciprocating engine and a hydrogen energy storage system. Thanks to an electronic control unit (ECU), the energy fluxes are managed in order to minimize the fossil fuel consumption and to maximize the energy production by the renewable source according to the selected system control strategy. The sizing and performance analysis have been carried out considering two designing constraints related to the contribution of the PV unit and of the reciprocating engine: in the first case the hybrid plant is sized to operate as “full renewable supply” electric power plant, in the second one the size of the PV unit is assigned according to the available space for its installationI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
