Effective dithering technique for EMI reduction in three phase DC/AC inverters

Ali Elrayyah, Yilmaz Sozer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Three phase DC/AC inverters in power electronic applications produce electromagnetic interference (EMI) due to switching of the power semiconductor devices at high frequencies. Dithering the switching frequency is one of the effective and low cost tools to reduce EMI. To maximize the usefulness of the dithering process, the effect of each of its parameters on the EMI reduction needs to be understood. In this paper, the parameters of triangular periodic dithering are investigated to find their values in minimizing EMI for three phase DC/AC inverters. The paper presents that, by increasing the amplitude of the dithering signal and selecting its frequency to be equal to the inverter voltage frequency, the EMI can be reduced. Moreover, by selecting a phase shift of π/12 between the dithering signal and any of the inverter currents, the EMI is minimized compared to other phase shift amounts. The proposed technique is validated through simulation studies.

Original languageEnglish
Title of host publicationConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2401-2406
Number of pages6
ISBN (Print)9781479923250
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014 - Fort Worth, TX, United States
Duration: 16 Mar 201420 Mar 2014

Other

Other29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014
CountryUnited States
CityFort Worth, TX
Period16/3/1420/3/14

Fingerprint

Signal interference
Phase shift
Switching frequency
Power electronics
Electric potential
Costs

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Elrayyah, A., & Sozer, Y. (2014). Effective dithering technique for EMI reduction in three phase DC/AC inverters. In Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC (pp. 2401-2406). [6803639] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC.2014.6803639

Effective dithering technique for EMI reduction in three phase DC/AC inverters. / Elrayyah, Ali; Sozer, Yilmaz.

Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC. Institute of Electrical and Electronics Engineers Inc., 2014. p. 2401-2406 6803639.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Elrayyah, A & Sozer, Y 2014, Effective dithering technique for EMI reduction in three phase DC/AC inverters. in Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC., 6803639, Institute of Electrical and Electronics Engineers Inc., pp. 2401-2406, 29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014, Fort Worth, TX, United States, 16/3/14. https://doi.org/10.1109/APEC.2014.6803639
Elrayyah A, Sozer Y. Effective dithering technique for EMI reduction in three phase DC/AC inverters. In Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC. Institute of Electrical and Electronics Engineers Inc. 2014. p. 2401-2406. 6803639 https://doi.org/10.1109/APEC.2014.6803639
Elrayyah, Ali ; Sozer, Yilmaz. / Effective dithering technique for EMI reduction in three phase DC/AC inverters. Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 2401-2406
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