Abstract
M.Ing.
In this thesis, a new isolated DC-DC converter topology is designed which implements a high
frequency primary tap changing transformer. This converter is designed to be implemented
into renewable energy applications. Renewable or alternative energy resources are becoming
more popular by necessity. The voltage generated by renewable energy resources is
dependent on the weather conditions, thus the voltage may vary. This novel topology can
maintain a regulated DC output voltage for a wide input voltage range by implementing a
high frequency primary tap changing transformer. This converter is thus designed to
accommodate the voltage changing conditions of renewable energy resources. This converter
only requires output bus capacitance for DC bus stiffening. The overall required bus
capacitance is therefore effectively reduced compared to other converter topologies. This
isolated topology also improves the fundamental power quality. Other power quality
components of this new converter are also analysed.