DC Bus Current Harmonics of a Three-phase PWM Inverter with the Zero Sequence Injection
Paper in proceeding, 2014

Power electronic converters connected to a dc bus are sources of undesirable harmonics towards the dc side due to an inherent high-frequency switching used for the power processing. Three-phase inverters are widely used in many applications like motor drives and active rectifiers. With a SPWM control the dc bus voltage is not fully utilized, so a zero sequence injection method is commonly used to increase the maximum fundamental voltage output. The inverter dc side current harmonics are investigated for a three-phase SPWM inverter with and without zero sequence injection. The results show that the injection of the third harmonic and Min/Max zero sequence will not increase the dc side harmonics. The RMS value of the inverter dc side current is increased less than 1% when the zero sequence is injected.


Saeid Haghbin

Chalmers, Energy and Environment, Electric Power Engineering

Torbjörn Thiringer

Chalmers, Energy and Environment, Electric Power Engineering

2014 IEEE Transportation Electrification Conference and Expo (ITEC’14)

978-147992262-8 (ISBN)

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering





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