Abstract
A high-gain non-isolated DC–DC PWM boost converter of two-level output voltage is discussed. In traditional step-up converter like, transformerless converters using switched capacitor, switched inductor, etc., maximum voltage gain is not satisfied our expectations because of maximum duty cycle (i.e. duty cycle closely one). Switches are facing severe problem in reverse recovery, high on-state losses, high electromagnetic interference (EMI), etc., when they are operating at extreme duty cycle. Generally, grids are interconnected with AC supply from various power stations. But increase in solar energy demands the use of grid for DC supply. Nowadays, DC micro-grid is having higher attention due to rise in load requirement in DC and betterment in power quality. Based on power rating, these DC loads need various output voltages. In DC micro-grid, photovoltaic source (PV) is the best source of energy. The purpose of non-isolated converters is low cost and high reliability. A high-gain converter with PWM control is an essential for DC micro-grid due to very minimum voltage from photovoltaic. To achieve this, a boost DC–DC PWM converter configuration is discussed that exhibits a maximum voltage gain behaviour and the switches are controlled by a single control signal, which simplifies the operation. The new converter functions in uninterrupted output current mode.
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Sivasankar, N., Devabalaji, K.R. (2023). A High-Gain Non-Isolated DC–DC Boost Converter with Two-Level Output Voltage for PV Applications. In: Edwin Geo, V., Aloui, F. (eds) Energy and Exergy for Sustainable and Clean Environment, Volume 2. Green Energy and Technology. Springer, Singapore. https://doi.org/10.1007/978-981-16-8274-2_13
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DOI: https://doi.org/10.1007/978-981-16-8274-2_13
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