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DC Bus Current Harmonics of a Three-phase PWM Inverter with the Zero Sequence Injection

Saeid Haghbin (Institutionen för energi och miljö, Elteknik) ; Torbjörn Thiringer (Institutionen för energi och miljö, Elteknik)
2014 IEEE Transportation Electrification Conference and Expo (ITEC’14) (2014)
[Konferensbidrag, refereegranskat]

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.



Denna post skapades 2014-05-27. Senast ändrad 2016-09-26.
CPL Pubid: 198597

 

Institutioner (Chalmers)

Institutionen för energi och miljö, Elteknik (2005-2017)

Ämnesområden

Elkraftteknik

Chalmers infrastruktur