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Recently, introduction of renewable energy such as photovoltaics and wind energy has gained precedence for greenhouse gas reduction and oil substitution. However, due to the power fluctuation of renewable energy sources, voltage and frequency deviation are problematic in power systems. At present, a transformerless battery energy storage system based on a cascaded multilevel converter has been proposed...
A Five-level cascaded multilevel motor driver with battery charge management has been proposed. The cascade multilevel converter uses two levels of dc voltage sources which is available from batteries for electrical vehicle. Through proper control of the multilevel converter, production of AC waveforms can be achieved from small voltage of battery banks. A simple charging method is presented by which...
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