System and method for controlling a variable speed drive

Details System and method for controlling a variable speed drive System and method for controlling a variable speed drive

2004-04-12

2008-09-16

Ip, Paul (Department: 2837)

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Having electrical synchronizing interconnections

C318S066000, C318S801000, C363S034000, C363S071000

Reexamination Certificate

active

07425806

ABSTRACT:
A variable speed drive is provided having a converter to convert an AC voltage to a DC voltage, a DC link to filter and store energy from the converter, and a plurality of inverters. Each inverter is configured to convert a DC voltage to an AC voltage and is electrically connected in parallel to the DC link. An interleaved pulse width modulation control technique is used to control the operation of the plurality of inverters and possibly the converter to lower the RMS ripple current in the DC link.

REFERENCES:
patent: 3781615 (1973-12-01), Mokrytzki et al.
patent: 4674024 (1987-06-01), Paice et al.
patent: 4953069 (1990-08-01), Braun et al.
patent: 5285372 (1994-02-01), Huynh et al.
patent: 5351181 (1994-09-01), Brennen et al.
patent: 5751138 (1998-05-01), Venkata et al.
patent: 5933339 (1999-08-01), Duba et al.
patent: 6101109 (2000-08-01), Duba et al.
patent: 6111440 (2000-08-01), Rajagopalan et al.
patent: 6118932 (2000-09-01), Maurio et al.
patent: 6313602 (2001-11-01), Arefeen et al.
patent: 6340851 (2002-01-01), Rinaldi et al.
patent: 6392905 (2002-05-01), Huang et al.
patent: 6864646 (2005-03-01), Rahman et al.
patent: 2003/0025398 (2003-02-01), Nakamura et al.
patent: 2004/0160201 (2004-08-01), Rahman et al.
patent: 2005/0225270 (2005-10-01), Schnetzka et al.
patent: 2007/0086221 (2007-04-01), Ritter et al.
patent: 1186464 (2002-03-01), None
patent: 1271067 (2003-01-01), None
patent: 2000 078850 (2000-03-01), None
patent: WO 00/33448 (2000-06-01), None

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