A New Cascaded Multilevel H-Bridge Drive
This document has been relocated to http://scholarsmine.mst.edu/ele_comeng_facwork/724
There were 73 downloads as of 22 Jun 2016.
In this paper, a general structure for cascaded power converters is presented in which any number of H-bridge cells having any number of voltage levels are series connected to form an inverter phase leg. Equations are introduced for determining an optimal voltage ratio of DC voltages for the H-bridge cells which will maximize the number of voltage levels obtainable resulting in high power quality. Special cases of the generalized inverter are presented including novel 11-level and 15-level inverters. Laboratory measurements demonstrate the proposed inverter performance