TY - GEN
T1 - Common mode EMC input filter design for a three-phase buck-type PWM rectifier system
AU - Nussbaumer, T.
AU - Heldwein, M. L.
AU - Kolar, J. W.
PY - 2006
Y1 - 2006
N2 - The EMC input filter design for a three-phase PWM rectifier is usually separated into the design of the differential (DM) and of the common mode (CM) stage. While for the DM filter part design rules and procedures are well-known and the parameters are easier to derive, the CM filter design is often based on trial-and-error methods and/or on the experience of the designer. In this work, a comprehensive design procedure for a CM EMC input filter is performed exemplarily for a three-phase three-switch buck-type PWM rectifier with an integrated boost output stage. A simplified model of the CM noise propagation is developed and the relevant parasitic impedances are identified. A capacitive connection from the star-point of the DM input filter to the capacitive centre point of the rectifier output voltage is proposed and the effect of this measure concerning CM EMC is verified. Finally, a two stage CM filter is designed and the compliance to the conducted emission requirements of CISPR 22 Class A is verified through measurements on a 5 kW prototype.
AB - The EMC input filter design for a three-phase PWM rectifier is usually separated into the design of the differential (DM) and of the common mode (CM) stage. While for the DM filter part design rules and procedures are well-known and the parameters are easier to derive, the CM filter design is often based on trial-and-error methods and/or on the experience of the designer. In this work, a comprehensive design procedure for a CM EMC input filter is performed exemplarily for a three-phase three-switch buck-type PWM rectifier with an integrated boost output stage. A simplified model of the CM noise propagation is developed and the relevant parasitic impedances are identified. A capacitive connection from the star-point of the DM input filter to the capacitive centre point of the rectifier output voltage is proposed and the effect of this measure concerning CM EMC is verified. Finally, a two stage CM filter is designed and the compliance to the conducted emission requirements of CISPR 22 Class A is verified through measurements on a 5 kW prototype.
UR - http://www.scopus.com/inward/record.url?scp=33749526722&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:33749526722
SN - 0780395476
SN - 9780780395473
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1617
EP - 1623
BT - Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition, APEC '06
T2 - 21st Annual IEEE Applied Power Electronics Conference and Exposition, APEC '06
Y2 - 19 March 2006 through 23 March 2006
ER -