The Low Voltage Direct Current(LVDC)architecture gives higher benefits over the classic low-voltage alternating current(LVAC)supply concept.LVDC has fewer energy conversion stages,is compatible with renewable energy s...The Low Voltage Direct Current(LVDC)architecture gives higher benefits over the classic low-voltage alternating current(LVAC)supply concept.LVDC has fewer energy conversion stages,is compatible with renewable energy sources,and is easier to integrate with accumulators.In this paper,an LVDC supply concept is proposed and compared with currently used conventional photovoltaic(PV)systems in terms of efficiency.The new LVDC photovoltaic system behavior is validated using LTspice modeling tool.The findings of this work prove that the concept of LVDC supply is highly attractive when the electricity produced by the photovoltaic is used onsite in the daytime.To carry out an efficient system,the PV power mounted in the houses should be precisely rated with respect to the magnitude of the load energy consumption.We proposed three house examples to verify the superiority of our proposed system in comparison with the traditional LVDC PV chain.An annual analysis of the energy saved by the studied systems was carried out.The main benefit of the suggested LVDC supply is the short way taken by the energy generated by the photovoltaic system to supply DC loads within daytime hours.The registered increase in system efficiency reached more than 20%for the proposed LVDC system.展开更多
In this paper some photovoltaic, PV, conversion chains architectures for on-grid applications have been proposed and the advantage of the direct use of a Low Voltage Direct Current (LVDC) bus for the DC loads has been...In this paper some photovoltaic, PV, conversion chains architectures for on-grid applications have been proposed and the advantage of the direct use of a Low Voltage Direct Current (LVDC) bus for the DC loads has been shown. The evaluation of the efficiency of the proposed chains compared to the classical one was performed. It is shown that LVDC use instead of standard AC plugs, in numerous applications, is promising in future. The registered annual saved energy can exceed 25% of the PV generated energy. This important rate, the need of better services at lower economic cost and environmental burden will incite to make reflection about industry and supplies’ future standards.展开更多
基金Project funded by the deanship of scientific research at Umm Al Qura University in Saudi Arabia by grand code:22UQU4340526DSR01.
文摘The Low Voltage Direct Current(LVDC)architecture gives higher benefits over the classic low-voltage alternating current(LVAC)supply concept.LVDC has fewer energy conversion stages,is compatible with renewable energy sources,and is easier to integrate with accumulators.In this paper,an LVDC supply concept is proposed and compared with currently used conventional photovoltaic(PV)systems in terms of efficiency.The new LVDC photovoltaic system behavior is validated using LTspice modeling tool.The findings of this work prove that the concept of LVDC supply is highly attractive when the electricity produced by the photovoltaic is used onsite in the daytime.To carry out an efficient system,the PV power mounted in the houses should be precisely rated with respect to the magnitude of the load energy consumption.We proposed three house examples to verify the superiority of our proposed system in comparison with the traditional LVDC PV chain.An annual analysis of the energy saved by the studied systems was carried out.The main benefit of the suggested LVDC supply is the short way taken by the energy generated by the photovoltaic system to supply DC loads within daytime hours.The registered increase in system efficiency reached more than 20%for the proposed LVDC system.
文摘In this paper some photovoltaic, PV, conversion chains architectures for on-grid applications have been proposed and the advantage of the direct use of a Low Voltage Direct Current (LVDC) bus for the DC loads has been shown. The evaluation of the efficiency of the proposed chains compared to the classical one was performed. It is shown that LVDC use instead of standard AC plugs, in numerous applications, is promising in future. The registered annual saved energy can exceed 25% of the PV generated energy. This important rate, the need of better services at lower economic cost and environmental burden will incite to make reflection about industry and supplies’ future standards.
