1.Waseda University, Tokyo 169-8050, Japan;2. Tokyo University of Technology, Tokyo 192-0982, Japan;3. Central South University, Changsha 410083
Abstract:
One problem with a single source three-level inverter is the drafting of its neutral-point voltage. This may occur during transition or when unbalanced loads are connected to the inverter system. Variation of neutral-point voltage may greatly deteriorate