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

Author

Listed:
  • 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)

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.

Suggested Citation

  • Umashankar Subramaniam & Sagar Mahajan Bhaskar & Dhafer J.Almakhles & Sanjeevikumar Padmanaban & Zbigniew Leonowicz, 2019. "Investigations on EMI Mitigation Techniques: Intent to Reduce Grid-Tied PV Inverter Common Mode Current and Voltage," Energies, MDPI, vol. 12(17), pages 1-18, September.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:17:p:3395-:d:263621
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    References listed on IDEAS

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    1. Yun Yang & Chengxiong Mao & Dan Wang & Jie Tian & Ming Yang, 2017. "Modeling and Analysis of the Common Mode Voltage in a Cascaded H-Bridge Electronic Power Transformer," Energies, MDPI, vol. 10(9), pages 1-16, September.
    2. Miguel Moranchel & Francisco Huerta & Inés Sanz & Emilio Bueno & Francisco J. Rodríguez, 2016. "A Comparison of Modulation Techniques for Modular Multilevel Converters," Energies, MDPI, vol. 9(12), pages 1-20, December.
    3. Majid Mehrasa & Edris Pouresmaeil & Sasan Zabihi & Juan C. Trujillo Caballero & João P. S. Catalão, 2016. "A Novel Modulation Function-Based Control of Modular Multilevel Converters for High Voltage Direct Current Transmission Systems," Energies, MDPI, vol. 9(11), pages 1-14, October.
    4. Xiongmin Tang & Chengjing Lai & Zheng Liu & Miao Zhang, 2017. "A SVPWM to Eliminate Common-Mode Voltage for Multilevel Inverters," Energies, MDPI, vol. 10(5), pages 1-10, May.
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    Cited by:

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    2. Vladimir Kindl & Lukáš Sobotka & Michal Frivaldsky & Martin Skalicky, 2022. "Analytical Method for Designing Three-Phase Air-Gapped Compensation Choke," Energies, MDPI, vol. 15(19), pages 1-17, October.
    3. Narayanan Pandurangan Gopinath & Krishnasamy Vijayakumar & Jagabar Sathik Mohd Ali & Kumutha Raghupathi & Sivakumar Selvam, 2023. "A Triple Boost Seven-Level Common Ground Transformerless Inverter Topology for Grid-Connected Photovoltaic Applications," Energies, MDPI, vol. 16(8), pages 1-20, April.
    4. Truong-Duy Duong & Minh-Khai Nguyen & Tan-Tai Tran & Dai-Van Vo & Young-Cheol Lim & Joon-Ho Choi, 2022. "Topology Review of Three-Phase Two-Level Transformerless Photovoltaic Inverters for Common-Mode Voltage Reduction," Energies, MDPI, vol. 15(9), pages 1-18, April.

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