This Master thesis deals with the analysis,
simulation and implementation of serial
connected converters. The focus is laid
on the design of a single phase equivalent
cell, comprised of a standard three
phase - two level voltage source inverter
connected in series with a bidirectional
full bridge converter via a high frequency
transformer. In order to realize the high
frequency operation of the transformer
a modification in the sinusoidal PWM
is implemented. Also, several schemes
for commutating the bidirectional full
bridge are analyzed, simulated and tested.
Transformer design aim on the minimization
of leakage inductances and for this
reason three prototypes are constructed
compared.