Title :
A new boost type cascaded inverter with single DC source
Author :
Muneshima, Masakazu ; Zhang, Hui ; Tokunaga, Shohei ; Urushibata, Shota ; Kodama, Takashi ; Nomura, Masakatsu
Author_Institution :
Meidensha Corp., Tokyo, Japan
fDate :
May 30 2011-June 3 2011
Abstract :
Cascaded multilevel inverters with Y connection or Delta-connection have been proposed for high voltage applications. However, these topologies always require isolated transformers for each inverter cell, which makes cost high and wiring complex. Furthermore, system weight and volume also increase accordingly. This paper presents two new types of boost type delta-connection cascaded inverters with only a single DC source. Based on it, a suitable voltage control with PWM modulation is also proposed to improve the inverter control performance and DC capacitors voltage fluctuation. Verification has been carried out by simulation with MATLAB.
Keywords :
PWM invertors; cascade control; power transformers; voltage control; DC capacitors; PWM modulation; boost inverters; cascaded multilevel inverters; delta-connection; inverter cell; isolated transformers; voltage control; voltage fluctuation; Capacitance; Capacitors; Fluctuations; Inductors; Inverters; Topology; Voltage control; boost converter; delta-connection; multilevel inverter; single DC source;
Conference_Titel :
Power Electronics and ECCE Asia (ICPE & ECCE), 2011 IEEE 8th International Conference on
Conference_Location :
Jeju
Print_ISBN :
978-1-61284-958-4
Electronic_ISBN :
2150-6078
DOI :
10.1109/ICPE.2011.5944458
