Seven level inverter with nearest level control

Multilevel inverters are commonly used for high power applications. The structure of a multilevel inverter is to synthesize sinusoidal waveform from several levels of voltages. This paper deals with a novel seven level cascaded multilevel inverter. Almost all the drawbacks of the conventional multilevel inverters is rectified by the proposed topology. This topology uses less number of switches as compared with conventional topology, where it reduces the complexity and overall size of the system which in turn reduces the harmonics and cost of the entire system. Fewer switches will be conducting for specific time intervals so switching loss is also reduced in the proposed topology. A seven level inverter simulation is carried with the implementation of nearest level control. The proposal is validated by extensive simulation studies.