Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2008-03-25
2008-03-25
Donovan, Lincoln (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S798000, C318S801000, C318S432000, C318S434000
Reexamination Certificate
active
11285180
ABSTRACT:
An apparatus controls a power converter of an AC motor drive system, the power converter outputting multi-phase AC current to an AC motor. The apparatus comprises: a state selecting unit; and an advanced controller. The state selecting unit selects an operation mode, from among a plurality of operation modes, for the AC motor based on system real-time operating conditions, the plurality of operation modes including a normal mode, a power interruption mode, a fault protection mode, and a power-up/down dynamic mode. The system operating conditions include DC voltage available to the power converter, motor load condition, and motor speed command. The advanced controller controls multi-phase AC current output from the power converter to the motor in accordance with the operation mode selected by the state selecting unit. The advanced controller generates a current control reference value that is based on the selected operation mode to achieve current control under various operating conditions of the motor drive system.
REFERENCES:
patent: 4554501 (1985-11-01), Baker
patent: 4959602 (1990-09-01), Scott et al.
patent: 5140248 (1992-08-01), Rowan et al.
patent: 5298847 (1994-03-01), Kerkman et al.
patent: 5537308 (1996-07-01), Gritter
patent: 5594634 (1997-01-01), Rajashekara et al.
patent: 5949204 (1999-09-01), Huggett et al.
patent: 6198176 (2001-03-01), Gillette
patent: 6304052 (2001-10-01), O'Meara et al.
patent: 6459230 (2002-10-01), Tao
patent: 6541937 (2003-04-01), Kato
patent: 6577087 (2003-06-01), Su
patent: 6608459 (2003-08-01), Kasagami et al.
patent: 6674262 (2004-01-01), Kitajima et al.
patent: 2003/0214266 (2003-11-01), Cheng et al.
Ma Jack
Wang Zheng
Zhou George
Birch & Stewart Kolasch & Birch, LLP
Donovan Lincoln
Glass Erick
Honeywell International , Inc.
LandOfFree
Advanced current control method and apparatus for a motor... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Advanced current control method and apparatus for a motor..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Advanced current control method and apparatus for a motor... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3915298