An adaptive hysteresis dead-band-based SVPWM method for multi-level inverter
by Mohamed Trabelsi; Lazhar Ben-Brahim; Tomoki Yokoyama; Atsuo Kawamura
International Journal of Power Electronics (IJPELEC), Vol. 5, No. 3/4, 2013

Abstract: The fast rise time of output voltage pulses (dv/dt) in PWM multi-level inverters (MLI) is one of the major factors of the increase of electromagnetic interference EMI and the shortness of motor useful life. Moreover, irregular voltage pulses, which only appear for critical modulation indexes, can deepen this interference phenomenon. To overcome this problem, this paper proposes an adaptive hysteresis dead-band (AHDB)-based space vector PWM (SVPWM) method for MLI. The proposed scheme is developed for multilevel cascaded H-bridge (CHB) inverters. In the proposed strategy, general dwell-time equations were derived to achieve the SVPWM for any n-level inverter. Moreover, the dwell-times calculation was made easy by using only two parameters defining regions for a given sector. Furthermore, to remove all irregular pulses from the output voltage, the dead-band of the hysteresis was made variable. Both theoretical analyses and simulation results are presented to show the effectiveness of the proposed method.

Online publication date: Mon, 30-Jun-2014

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Power Electronics (IJPELEC):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email