Title :
Control Strategies of a Hybrid Multilevel Converter for Expanding Adjustable Output Voltage Range
Author :
Fukuda, Shoji ; Yoshida, Takatsugu ; Ueda, Shigeta
Author_Institution :
Hokkaido Univ., Sapporo
Abstract :
This paper proposes a new arrangement and new control strategies for a hybrid multilevel converter aiming at a high power high efficiency converter system with being free from harmonic distortion of the output. The strategies enable one to expand the adjustable output voltage range up to 100% with keeping very low harmonic distortion of the output voltages. The triangular-carrier based PWM and space-vector based PWM strategies are applied to the voltage control. Effectiveness is verified by simulation and experimental results. The proposed hybrid multilevel converter is applicable to medium voltage networks as a high power grid-interface converter.
Keywords :
PWM power convertors; harmonic distortion; voltage control; PWM converters; grid-interface converter; harmonic distortion; hybrid multilevel converter; voltage control; Control systems; Harmonic distortion; Insulated gate bipolar transistors; Inverters; Medium voltage; Semiconductor diodes; Space vector pulse width modulation; Topology; Transformers; Voltage control; harmonic distortion; high power converter; hybrid converter; multilevel converter;
Conference_Titel :
Power Electronics and Drive Systems, 2007. PEDS '07. 7th International Conference on
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0645-6
Electronic_ISBN :
978-1-4244-0645-6
DOI :
10.1109/PEDS.2007.4487806
