Optimized Single-Phase Dual-Source Converter for Hybrid Energy Systems with Enhanced Efficiency and Power Quality
摘要
Combat with the pressing challenges of climate change, the efficient utilization of sources is crucial. As the demand for renewable energy continues to rise, driven by a need for sustainable solutions, hybrid energy systems must become more efficient and reliable. This paper presents a novel dual-source converter for a hybrid energy system that integrates two power sources of different characteristics, namely AC and DC energy sources, to feed power two standalone AC loads, addressing the limitations of conventional hybrid energy system. The AC source is grid power, while the DC source is solar power. A Sino-square and complementary Sino-square voltage waveform are introduced to feed the loads, improving the grid current power quality without the use of additional compensation circuitry. The proposed converter setup eliminates the need for a diode rectifier and simplifies the multistage power conversion typically seen in conventional hybrid energy systems. The behavior of the proposed converter has been analyzed through extensive simulation and further validated experimentally. This proposed converter combines solar and grid power to feed isolated AC loads with improved power quality. It provides a reliable solution that supports the global shift toward sustainable energy sources and helps to reduce the effects of climate change.