This thesis deals with the design and functionality of battery-based multilevel inverters. A current research topic involves the quest for an optimal inverter structure that offers maximum functionality while keeping the hardware requirements as low as possible. As part of fundamental investigations, the essential characteristics of an innovative multilevel inverter structure are presented and the occurring effects are characterized. Not only the microtopology plays a crucial role in the design of multilevel inverters. Other factors such as the macroscopic topology, the design of the submodules, their symmetry and the underlying control method also have a significant impact on the functionality. Based on the classification and examination of the essential influencing factors of multilevel inverters, the central parameter dependencies are identified. In this context, state variables such as the step height of the output voltage waveform and the state of charge of the energy storage units are incorporated into the investigations. In a successive design, analysis and optimization process, the respective dependencies are examined in detail, their mutual influence is evaluated and promising multilevel inverter designs are identified. Evaluation criteria such as the inverter costs, the distortion content of the output voltages and the system losses serve as the basis for identifying the most promising inverter systems. Alongside the optimization of the designs and an appropriate comparison, a recommendation for the use of the individual inverter systems is provided during the analysis process.     «

This thesis deals with the design and functionality of battery-based multilevel inverters. A current research topic involves the quest for an optimal inverter structure that offers maximum functionality while keeping the hardware requirements as low as possible. As part of fundamental investigations, the essential characteristics of an innovative multilevel inverter structure are presented and the occurring effects are characterized. Not only the microtopology plays a crucial role in the design...     »