Akademik Veri Yönetim Sistemi
4th International Conference on Smart Grid and Renewable Energy, SGRE 2024, Doha, Qatar, 8 - 10 Ocak 2024
Energy production with minimum losses is becoming increasingly crucial today due to factors such as production costs and the decline of fossil resources. This situation has brought forth a critical issue of delivering energy to end-users in the most efficient way. In this perspective, inverters play a significant role in converting energy generated from direct current (DC) power sources such as fuel cells, batteries, and photovoltaic energy into usable form for end-users (AC). Similarly, to achieve AC regulations and requirements in photovoltaic systems, control structures enabling the extraction or regulation of maximum power require two or three-stage systems such as buck, boost and buck boost converters and inverters. Impedance-source inverters, known for their ability to provide maximum power from photovoltaic panels with a single stage and deliver energy to end-users, offer advantages over traditional inverters and utilize the widely used carrier-based switching structure known as "Simple Boost Control". In this study, a new carrier-based switching structure has been designed for impedance-source inverters to reduce the number of switching transactions and associated switching losses. Drawing inspiration from the "Simple Boost Control"structure, this study reduced the number of switching by 66% by using a new signal parallel to the existing carrier signal. Although there is a difference in the harmonic frequencies in the output voltage, there is no change in the total harmonic distortion (THD). As a result, this method reduces switching losses in circuit switching elements, demonstrating the potential to enhance the efficiency of impedance-source inverters.