EMI filter topology for power inverters

Details EMI filter topology for power inverters EMI filter topology for power inverters

1994-06-10

1996-09-03

Wong, Peter S.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 17, 363132, H02M 114

Patent

active

055529763

ABSTRACT:
A EMI filter for an electric vehicle propulsion system, comprising a first and second capacitive element electrically connected in parallel with first and second power conductors, an inductive element electrically connected in series with the first power conductor and separating the first and second capacitive elements, and first and second junctions electrically connecting the second capacitive element to an electronic switch, wherein the sum of intrinsic inductances of the first and second junctions is less than the intrinsic inductance of the second capacitive element.

REFERENCES:
patent: 4199807 (1980-04-01), Crowe et al.
patent: 4901216 (1990-02-01), Small
patent: 4904918 (1990-02-01), Bailey et al.
patent: 4922397 (1990-05-01), Heyman
EPE'93, Sep. 1993, T. Schutze, et al., "Low Floor Trams with IGBT-3-level Inverter", pp. 92-96.
EPE'91, 1991, Tadros, et al., "Design Aspects of High Power PWM Inverters with IGBT", pp. 2-083-2-088.
EPE'89, Oct. 1989, W. Leonhard, et al., "DPI-Fed Induction Motor Drive for Railway Applications--Braking above Rated Speed at Rated Torque", pp. 69-73.

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