A new DC-DC multilevel breed of XY converter family for renewable energy applications: Ly multilevel structured boost converter

Abstract

© 2018 IEEE. This paper presents a new multilevel breed of XY converter family, called LY Multilevel Boost Converter (LY-MBC) topologies for renewable energy applications. Four LY-MBC topologies are designed to obtain a high voltage conversion ratio and which also offer an operative solution for renewable energy systems with minimal number of components. Existing LY converter topologies includes L-L, L-2L, L-2LC and L-2LCm converter topologies and LY converter is one of the breed of the XY converter family. The proposed LY-MBC topologies are derived by attaching the Cockcroft Walton (CW) multiplier to the Y converter of LY converter topologies. The proposed LY-MBC converter topologies are compared with existing LY converter topologies in terms of voltage conversion ratio and number of components. The noticeable features of the proposed LY-MBC topologies are also discussed in details. The working operation, feasibility, and design of the proposed LY-MBC topologies are verified by simulations.