J.MOHAN
1Assistant Professor, Department of EEE, Ranganathan Engineering College, Coimbatore, India.
1Assistant Professor, Department of EEE, Ranganathan Engineering College, Coimbatore, India.
Space vector modulation
applied to three phase Two-level unidirectional PWM rectifier will be discussed
in this proposed work. A methodology for the use of this modulation is proposed
and applied in different group of rectifier. For each group of rectifier the
converter switching techniques are analyzed to determine switch control signals
for space vector modulation. One switching sequence is proposed for all
rectifiers in order to minimize the number of switch commutations and reduce
the switching losses thereby improving performance of the converter. Switching
sequences are determined and performed by a simple space vector pulse width
modulation. Two level converter topology is introduced in order to maintain
constant output voltage and reduce the number of sensors and controllers. To
evaluate the proposed modulation techniques, simulations results have been
presented for low and medium power applications.
