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In order to reduce output voltage harmonics and improve efficiency, a symmetrical hybrid nine-level inverter for high speed open-winding motor drive system is presented in this paper. Each phase of this inverter is composed of a five-level DC/DC converter and an H-bridge. The DC/DC converter is operated at high frequency with low voltage MOSFETs and the H-bridge is operated at fundamental frequency...
In this paper, a novel ac/dc converter is proposed for low voltage, low power rectification applications. The proposed converter manages the energy harvested from micro-scale electromagnetic transducers. It integrates the conventional Boost and Buck-Boost topologies with a shared inductor, a bidirectional switch and two split filtering capacitors. The Boost and the Buck-Boost topologies function in...
This paper proposes a low voltage ride through (LVRT) control strategy for energy storage systems (ESSs). The LVRT control strategies for wind turbine systems and photovoltaic systems have been researched until now. Regardless of the energy source, the main aim of the LVRT control strategies for a grid side converter is to inject the reactive power according to the gird code regulations. The main...
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