Investigations on EMI Mitigation Techniques: Intent to Reduce Grid-Tied PV Inverter Common Mode Current and Voltage

Umashankar Subramaniam, Sagar Mahajan Bhaskar, Dhafer J.Almakhles, Sanjeevikumar Padmanaban and Zbigniew Leonowicz
Additional contact information
Umashankar Subramaniam: Renewable Energy Lab, Department of Communications and Networks, College of Engineering, Prince Sultan University (PSU), Riyadh 66833, Saudi Arabia
Sagar Mahajan Bhaskar: Renewable Energy Lab, Department of Communications and Networks, College of Engineering, Prince Sultan University (PSU), Riyadh 66833, Saudi Arabia
Dhafer J.Almakhles: Renewable Energy Lab, Department of Communications and Networks, College of Engineering, Prince Sultan University (PSU), Riyadh 66833, Saudi Arabia
Sanjeevikumar Padmanaban: Department of Energy Technology, Aalborg University, 6700 Esbjerg, Denmark
Zbigniew Leonowicz: Faculty of Electrical Engineering, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, 50370 Wroclaw, Poland

Energies, 2019, vol. 12, issue 17, 1-18

Abstract: Power inverters produce common mode voltage (CMV) and common mode current (CMC) which cause high-frequency electromagnetic interference (EMI) noise, leakage currents in electrical drives application and grid-connected systems, which consequently drops the efficiency of the system considerably. This CMV can be mitigated by designing suitable EMI filters and/or investigating the effects of different modulation strategies. In this paper, the effect of various modulation techniques over CMV and CMC are investigated for two-level and three-level inverters. It is observed that the modified third harmonic injection method reduced the CMV and CMC in the system by 60%. This modified pulse width modulation (PWM) technique is employed along with EMI chokes which results in reduced distortion of the system.

Keywords: common mode current; common mode voltage; modulation techniques; electromagnetic interference; mitigation; grid connected inverters (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
https://www.mdpi.com/1996-1073/12/17/3395/pdf (application/pdf)
https://www.mdpi.com/1996-1073/12/17/3395/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:12:y:2019:i:17:p:3395-:d:263621

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().