A Modular Multilevel Converter with a Clamping Switch for Quasi-Three-Level Operation. - Malte Lorenz; Jakub Kucka; Axel Mertens (ICIT, 2021)

Adding a Modular Multilevel Branch to a Conventional Converter to Enable the Quasi-Three-Level Operation Mode. - Malte Lorenz; Jan Niclas Laumann; Axel Mertens (IECON, 2023)