Electric power conversion systems – Current conversion – Having plural converters for single conversion
Patent
1998-03-05
1999-09-21
Sterett, Jeffrey
Electric power conversion systems
Current conversion
Having plural converters for single conversion
363 44, 363 84, H02M 748
Patent
active
059562447
ABSTRACT:
An apparatus for converting three phase AC supply line voltages to DC voltage on a DC bus, the apparatus including a master converter subsystem and at least one slave converter subsystem wherein each subsystem includes a current regulator, a PMW modulator and a converter, the master converter linked to the supply lines and the slave converter linked to the supply lines via intermediate lines, each regulator receiving a current command signal and generating modulating signals, each modulator using a carrier signal and modulating signals from a corresponding regulator to generate control signals to control a corresponding converter, the intermediate lines linked to a common mode choke for essentially eliminating common mode currents in the intermediate lines.
REFERENCES:
patent: 3970914 (1976-07-01), Salzmann et al.
patent: 4181932 (1980-01-01), Fujiwara
patent: 5406470 (1995-04-01), Ridley et al.
patent: 5460244 (1995-10-01), Tanahashi
patent: 5796601 (1998-08-01), Yamamoto
Buchholz Brian R.
Martin Timothy J.
Pitsch Robert L.
Rehm Thomas J.
Allen-Bradley Company LLC
Horn John J.
Jaskolski Michael A.
Miller John M.
Sterett Jeffrey
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