Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2007-09-28
2009-10-06
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S798000, C318S799000, C318S811000
Reexamination Certificate
active
07598698
ABSTRACT:
A motor control device includes a current detecting portion that detects phase current of one phase among three phase currents supplied from an inverter to a motor, and a current estimator that estimates phase current of phases other than the detected phase current by using a specified current value indicating current to be supplied to the motor, and derives control current corresponding to the specified current value from the estimated phase current and the phase current of one phase. The motor control device controls the motor via the inverter so that the control current follows the specified current value.
REFERENCES:
patent: 6229719 (2001-05-01), Sakai et al.
patent: 6577096 (2003-06-01), Cho
patent: 6598008 (2003-07-01), Lee
patent: 6836090 (2004-12-01), Sugiyama et al.
patent: 6909257 (2005-06-01), Inazumi
patent: 7271557 (2007-09-01), Ajima et al.
patent: 10-225199 (1998-08-01), None
patent: 2001-145398 (2001-05-01), None
patent: 2002-369574 (2002-12-01), None
patent: 2004-064903 (2004-02-01), None
patent: 2004-159391 (2004-06-01), None
Hajime Hida et al., “Position Sensorless Vector control for Permanent Magnet Synchronous Motors Based on Maximum Torque Control Frame,” Institute of Electrical Engineers, Industrial Application Department Conference Lecture Papers, pp. 385-388 (I-385 to I-388) published in Aug. 2006 (English abstarct included).
Hashimoto Eiichiro
Hida Hajime
Dinh Thai
Ditthavong Mori & Steiner, P.C.
Ro Bentsu
Sanyo Electric Co,. Ltd.
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