A new simplified space-vector PWM method for three-level inverters

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...

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Veröffentlicht in:	IEEE transactions on power electronics 2001-07, Vol.16 (4), p.545-550
Hauptverfasser:	Seo, Jae Hyeong, Choi, Chang Ho, Hyun, Dong Seok
Format:	Artikel
Sprache:	eng
Schlagworte:	Control theory Electronics Insulated gate bipolar transistors Inverters Mathematical models Power supply Power system harmonics Pulse duration modulation Pulse inverters Pulse width modulation inverters Simplification Space technology Space vector pulse width modulation Studies Switching circuits Switching frequency Thyristors Voltage
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Zusammenfassung:	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.
ISSN:	0885-8993 1941-0107
DOI:	10.1109/63.931078