Title :
A Hybrid Multilevel Converter System with Extended Adjustable Output Voltage Range
Author :
Fukuda, Shoji ; Yoshida, Takatsugu ; Ueda, Shigeta
Author_Institution :
Hokkaido Univ., Sapporo
Abstract :
This paper proposes a new arrangement and a new control strategy for a hybrid multilevel converter system aiming at high power high efficiency converters with very low harmonic distortion of the output voltage and current. A costly transformer with phase-shifted secondary windings required for the original arrangement is unnecessary. Space-vector based pulse width modulation strategy is applied to voltage control. It expands the adjustable output voltage range up to 100% with voltages and currents being almost free from harmonic distortion. Effectiveness is verified by simulation and experimental results.
Keywords :
harmonic distortion; power convertors; transformer windings; transformers; voltage control; extended adjustable output voltage range; harmonic distortion; hybrid multilevel converter system; phase-shifted secondary windings; space-vector based pulse width modulation; transformer; voltage control; Educational institutions; Harmonic distortion; Insulated gate bipolar transistors; Pulse transformers; Pulse width modulation inverters; Space vector pulse width modulation; Switching converters; Switching loss; Topology; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 2007. PESC 2007. IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-0654-8
Electronic_ISBN :
0275-9306
DOI :
10.1109/PESC.2007.4342233
