Patent ID: 9236811
Filing Date: 2016-01-12
CPC Classification: H01F,H02M

Claim Text:
1. A power distribution arrangement, comprising: a first multiphase transformer rectifier unit and a second multiphase transformer rectifier unit, each comprising a magnetic core having a primary winding set and secondary winding set, and a rectifier circuit, wherein said secondary winding set is arranged to generate N substantially equally distributed output phases, wherein N is an odd number multiple of 3, and N>3; and wherein said primary winding set is arranged to provide said output phases with a positive or negative phase shift equal substantially to degrees wherein said first and second multiphase transformer rectifier units are connected to a three-phase alternating current power distribution system with a first input terminal, a second input terminal, and a third input terminal, said first input terminal of said first and second multiphase transformer rectifier unit is connected to a first phase of the power distribution system, said second input terminal of said first multiphase transformer rectifier unit is connected to a second phase of the power distribution system, said third input terminal of said first multiphase transformer rectifier unit is connected to a third phase of the power distribution system, said second input terminal of said second multiphase transformer rectifier unit is connected to said third phase, and said third input terminal of said second multiphase transformer rectifier unit is connected to said second phase, such that a first plurality of output phases of the first multiphase transformer rectifier unit are phase shifted with respect to a second plurality of output phases of the second multiphase transformer rectifier unit in order to reduce current distortion in said power distribution system inflicted by said rectifier circuit and/or load.