Bhaskar, Sagar Mahajan

J.Almakhles, Dhafer

Leonowicz, Zbigniew

Padmanaban, Sanjeevikumar

Subramaniam, Umashankar

English

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

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

https://vbn.aau.dk/files/409284368/energies_12_03395.pdf

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

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