Patent · US Active

Network filter for a converter for connection of the converter to a 3-phase supply network

US8680949B2 · kind B2 · utility

1Cited by

2References

8Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Alfred Böhm · Bad Kötzting, DE
Tobias Hofmann · Kaufbeuren, DE

Key dates

Filing date	May 8, 2008
Grant date	Mar 25, 2014
Priority date	—
Expiry date	Feb 6, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH02M1/126
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A network filter for connecting a converter to a 3-phase supply network includes in each phase a toroidal inductor which is connected in series with a commutation inductor at a respective first connection point, and a capacitor circuit having at least four capacitances, wherein first terminals of a first, a second and a third capacitance is connected in one-to-one correspondence to a respective one of the first connection points. Second terminals of the first, second and third capacitance are connected at a common second connection point, with a fourth capacitance being connected between ground and the common second connection point. The windings of the toroidal inductors can be formed of the connecting lines which connect the corresponding first terminals to the three phases of the supply network.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.