Implementation of nine-switch converter to PV solar array operating with different loads

Mohd Taufix, Mohammad Firzan Eidlan (2022) Implementation of nine-switch converter to PV solar array operating with different loads. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Carbon free energy has always attracted worldwide attention to mitigate climate change. Its technological advancements and ability to create savings has always been greatly perceived by the people. However, with any technology there will always be shortcomings. Common inverters uses 12-Switch Converter to convert DC to AC, to supply three phase AC to two different loads. Thus, 12-Switch Converters has its weaknesses. During the conversion, power tends to lose between the switching phenomenon. It is bulky and require two converters to operate two loads independently. Therefore, to combat this limitation, the objectives of this project is to design a Nine-Switch Converter and analyze the difference in efficiency of power between the converters. It is required to design, simulate, built a prototype and compare the results. Design and simulation is done to ensure the system is correct and outlines the reference in building the prototype. In prototype, the components of the project are combined to create a system and the output of the system is measured and compared between the simulations to identify whether Nine-Switch Converter is more efficient than 12-Switch Converter. Hence, as discovered in the prototype testing, the Nine-Switch converter had 2.96% better efficiency in load 5.6ohms and 13.53% better efficiency in load 56ohms when compared to 12-Switch converter.

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