DocumentCode :
2913737
Title :
Capacitor voltage controls of novel five-level inverter having only double DC power supplies
Author :
Yamamoto, Isamu ; Matsui, Keiju ; Yamaguchi, Satarou ; Hasegawa, Masaru ; Mori, Hideki ; Ueda, Fukashi
Author_Institution :
Chubu Univ., Aichi
fYear :
2005
fDate :
6-6 Nov. 2005
Abstract :
The five-level PWM inverter has many advantages such as ability to operate the AC motors or the power compensator with very large capacity in nearly sinusoidal current waveforms. For these reasons, these applications have just begun to study. However, this circuit must provide four DC power supplies for supplying the active power. In this paper, we propose a novel double power supply method, in which both power supplies are inter-connected by DC capacitors. The voltages of the inter-connected DC capacitor are controlled by a novel third order harmonic injection method, where the phase of modified third order harmonic signal having positive or negative polarity is controlled individually
Keywords :
PWM invertors; capacitors; power conversion harmonics; voltage control; AC motor; DC capacitor voltage control; active power supply; double DC power supplies; five-level PWM inverter; power compensator; third order harmonic injection method; AC motors; Capacitors; Circuits; Joining processes; Power harmonic filters; Power supplies; Power system harmonics; Pulse width modulation inverters; Supercapacitors; Voltage control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial Electronics Society, 2005. IECON 2005. 31st Annual Conference of IEEE
Conference_Location :
Raleigh, NC
Print_ISBN :
0-7803-9252-3
Type :
conf
DOI :
10.1109/IECON.2005.1568994
Filename :
1568994
Link To Document :
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