Reversing Voltage Topology for Multi-Level Inverters: Simulation and Experimental Validation

In recent years, using multi-level inverters for high power, high voltage applications has grown in popularity. Their performance is far better than standard two level inverters in terms of less harmonic distortion, decreased electromagnetic interference, and higher dc link voltages.It might have certain drawbacks, such as a higher component count, a more difficult PWM control scheme, and a floating neutral point. This work introduces a novel architecture called Reversing Voltage (RV) to enhance the multilevel performance and compared it for different levels (up to eleven level) to show reduced % THD in output voltage at higher level. This design uses less carrier signals and switches than standard inverters, especially at higher levels. It also eliminates the need for voltage balancing. Phase disposition SPWM technology is the basis for both the topology and control mechanism. Lastly, comparisons are made between the experimental (Laboratory Proto-type Model for Single Phase Five-Level Inverter Using Reversing Voltage Topology) and simulation findings at various voltage levels. The outcomes of the experiment closely resemble those of the simulation.