Circuit arrangement with a number of frequency converters,...

Details Circuit arrangement with a number of frequency converters,... Circuit arrangement with a number of frequency converters,...

H - Electricity

02

M

321/8

H02M 5/27 (2006.01) H02P 13/30 (1980.01)

Patent

CA 1050105

Abstract of the Disclosure A circuit arrangement is disclosed having an odd number of Y-con- nected frequency converters. The control units of the frequency converters are associated with current regulators, all of which are addressed by an additional common reference value. In accord with the invention, the aforesaid reference value is derived by generating a difference voltage corresponding to the difference of the voltages at the neutral point of the frequency converter circuit and the neutral point of the load. This difference voltage is then passed through a delay member whose time constant corresponds to the time constant of the load to develop the reference value.

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