Introduction of a New Module for Multilevel Inverter with Two Cascade Connection Strategies

Multilevel inverters with various topologies are become significant power electronic devices based on the extension of renewable sources to create AC stable sources. In this paper, a new module of multilevel inverter with two cascade connections is introduced by different arrangement of semiconductor devices. The module is comparable with conventional multilevel inverter in the number of components, output levels, THD and modularity. The presented module has the inherent ability to produce negative levels without auxiliary circuit (such as H-Bridge). The proposed module creates 13 levels in single module and 25 and 169 levels in two cascade connection strategies. The module and its cascade connections strategies are simulated by Matlab. Also a prototype module is implemented in power electronics laboratory. The results show a good performance of introduced module and satisfy IEEE519 standard.