Читать книгу Smart Grids and Micro-Grids - Umashankar Subramaniam - Страница 39

AC-DC converter (rectifier) converts AC input power into DC output power. The rectifier provides DC power to charge the BESS. Three-phase rectifiers are widely used for the industrial, electrical transportation system and the transmission of energy applications. Moreover, a DC-AC converter (inverter) is a crucial device that connects any DC power source to an AC bus in the power system. Inverters appeared as a promising power converter with numerous medium and high-power applications such as industrial motor drives, variable-frequency drives, EV/HEV, UPS, grid-connected renewable energy sources, HVDC, flexible AC transmission system. The typical inverters and rectifiers model are similar, which allows the converter to operate as either a rectifier or an inverter.