Low Cost FPGA-based Control Strategy for a Single Phase Stacked Multicell Converter

Multilevel converters have emerged like a new strategy for energy conversion from medium power to high power. The main characteristic of the topologies classified as multilevel, is the use of commutation devices connected in series, allowing the distribution of the voltage and reducing stress in the commutation switches. Stacked Multicell Converter (SMC), is classified as single-phase voltage source inverter(VSI). Due to the fact, the SMC generates a signal of alternating current of several levels of voltage of direct current. The following work will demonstrate the flexibility of the above mentioned topology using a low cost control circuit architecture.