Title: Power converter methods and apparatus for variable speed high power machines
Application Number: 200610131889 Application Date: 2006.10.17
Publication Number: 1953318 Publication Date: 2007.04.25
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02P27/00;H02P27/02;H02M5/00;H02M1/12
Applicant(s) Name: Gen Electric Address:
Inventor(s) Name: Ritter Allen Michel;Garces Luis Jose;Raju Ravisekh
Attorney & Agent: lijing lan liangyong
Abstract:
    Methods and apparatus for converting power from a power source are described. In one example embodiment, the method includes controlling multiple transformer and switchgear units (12) coupled to a power source, and controlling multiple converter units (22, 24, 26, 28) connected in parallel. Each converter unit is coupled to a respective one of the transformer and switchgear units to form an individual thread (14, 16, 18, 20). The transformer and switchgear unit and power converters are controlled so that the carrier waveforms for each individual thread are interleaved between each other over a carrier cycle.
Time: 11