A 99.3% Efficient Five-Level Interleaved ANPC Converter for High-Speed Aircraft Cabin Pressurization Systems

Commercial aviation contributes significantly to global CO2 emissions, requiring innovative solutions like the MEA concept to reduce the environmental impact of air traffic. Power electronics are a big part of MEA and can be further researched to improve its efficiency and weight, resulting in better fuel economy. This thesis focuses on the design of a five-level interleaved ANPC converter as a case study for an aircraft pressurization system. The prototype achieves a 99.3% efficiency at an output power of 20 kW, but further research needs to be done on input filter size and weight reduction. The results demonstrate the feasibility of using multi-level converters in MEA systems to meet future regulations on emissions.