Title :
A new simplified space-vector PWM method for three-level inverters
Author :
Seo, Jae Hyeong ; Choi, Chang Ho ; Hyun, Dong Seok
Author_Institution :
R&D Center, POSCON Corp., Seoul, South Korea
fDate :
7/1/2001 12:00:00 AM
Abstract :
In this paper, a new simplified space-vector pulse width modulation (SVPWM) method for a three-level inverter is proposed. This method is based on the simplification of the space-vector diagram of a three-level inverter into that of a two-level inverter. If simplified by the proposed method, all the remaining procedures necessary for the three-level SVPWM are done like conventional two-level inverter and the execution time is greatly reduced. The DC-link neutral-point potential control algorithms are implemented more easily. The proposed method can be applied to the multi-level inverters above three-level. The validity of the new SVPWM method is verified by experiment with a 1000 kVA three-level insulated gate bipolar transistor (IGBT) inverter
Keywords :
PWM invertors; insulated gate bipolar transistors; 1000 kVA; 3-level IGBT inverter; DC-link neutral-point potential control algorithms; multi-level inverters; space-vector PWM method; space-vector diagram; three-level insulated gate bipolar transistor inverter; three-level inverter; three-level inverters; two-level inverter; Insulated gate bipolar transistors; Power system harmonics; Pulse inverters; Pulse width modulation inverters; Space technology; Space vector pulse width modulation; Switching circuits; Switching frequency; Thyristors; Voltage;
Journal_Title :
Power Electronics, IEEE Transactions on
