Patent ID: 7102343
Filing Date: 2006-09-05
Classification: H02M

Abstract:
1. A system, comprising: a power source having a first voltage signal having a first frequency; at least one power-consuming load; a first transformer set comprising a delta-delta transformer, and a first voltage controller electrically coupled in series to said delta-delta transformer, said first transformer set having an input and an output, wherein said input of said first transformer set is electrically coupled to said power source to receive said first voltage signal and produce a second voltage signal having a second frequency, and wherein said output of said first transformer set is coupled to said at least one power-consuming load; and a second transformer set comprising a wye-delta transformer, and a second voltage controller electrically coupled in series to said wye-delta transformer, said second transformer set having an input and an output, wherein said input of said second transformer set is electrically coupled to said power source to receive said first voltage signal, and wherein said output of said second transformer set is coupled to said at least one power-consuming load, and wherein said wye-delta transformer causes a phase shift to said first frequency of said first voltage signal such that said second transformer set produces a third voltage signal having a third frequency, said third frequency being out of phase with respect to said second frequency; wherein said second transformer set and said first transformer set are coupled in an electrical parallel configuration such that said second voltage signal and said third voltage signal combine to produce a fourth voltage signal having a fourth frequency at said at least one power-consuming load.