Modular multilevel converters (MMCs) are at the forefront of high voltage direct current (HVDC) technology, offering significant advantages in terms of efficiency, scalability and reduced harmonic ...

Abstract: A topology based on the Modular Multilevel Converter (MMC) is presented, using two MMC linked by a medium frequency transformer. The back to back structure proves to have effective circuit ...

Abstract: Staircase modulation is a switching strategy widely used for multilevel inverters employing high number of output voltage levels. With tens of levels, a staircase modulated multilevel ...