Patent ID: 6160442
Filing Date: 2000-12-12
Classification: H02M

Abstract:
A filter arrangement which is connected to a load side of a converter circuit arrangement, wherein the converter circuit arrangement has n phases and comprises n load connections to which the filter arrangement is connected, the filter arrangement comprising:for each load connection, at least one inductance connected in series between the converter circuit arrangement and the load connection;at least two n-phase capacitor groups, each group including, for each of then load connections at least one capacitor connected to the respective load connection;wherein the capacitors in a first one of the at least two N-phase capacitor groups are connected to form a first one of the N-phase star, and the star point of the first capacitor groups is grounded via a grounded resistor, and the capacitors in a second one of the at least two N-phase capacitor groups are connected to form a second star, and the star point of the second N-phase capacitor groups is hard-grounded.