Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2007-09-18
2007-09-18
Ip, Paul (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S801000, C318S798000, C318S817000, C318S609000
Reexamination Certificate
active
11339471
ABSTRACT:
A method and system for managing the voltage of a DC bus of a speed controller for an AC electric motor linked to a current distribution network. The method includes comparing a value of the voltage measured on the DC bus with a determined limit value, when the value of the voltage measured on the DC bus becomes greater than the limit value, forcing the slope of an internal ramp to a zero value so as to confer a constant frequency on the stator, and when the value of the voltage measured on the DC bus again becomes less than the limit value, progressively increasing the value of the slope of the internal ramp.
REFERENCES:
patent: 4116306 (1978-09-01), Alley
patent: 4553187 (1985-11-01), Burns et al.
patent: 4804892 (1989-02-01), Muller
patent: 4972134 (1990-11-01), Getz et al.
patent: 5260645 (1993-11-01), Williams et al.
patent: 5276392 (1994-01-01), Beckerman
patent: 5329223 (1994-07-01), Riggio
patent: 5444359 (1995-08-01), Riggio
patent: 5583412 (1996-12-01), Nielsen
patent: 6229278 (2001-05-01), Garces et al.
patent: 6319301 (2001-11-01), Bueno et al.
patent: 6429612 (2002-08-01), Kume et al.
patent: 6577483 (2003-06-01), Steicher et al.
patent: 6864654 (2005-03-01), Letor et al.
patent: 7092197 (2006-08-01), El-Sherif et al.
patent: 0 549 004 (1993-06-01), None
patent: 56066189 (1981-06-01), None
Ip Paul
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Schneider Toshiba Inverter Europe SAS
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