Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2006-05-09
2006-05-09
Fletcher, Marlon T. (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S801000, C318S805000, C318S808000, C318S812000
Reexamination Certificate
active
07042193
ABSTRACT:
In a control apparatus for a rotating machine, an integration unit integrates a primary angular frequency based on an angular velocity command and computes phase, a power converting unit applies three-phase voltages to the rotating machine according to three-phase voltage commands, a current detecting unit detects three-phase currents flowing through to the rotating machine, a coordinate converting unit converts the currents detected by the current detecting unit into currents on rotating two-axis coordinates based on the phase output by the integration unit and converts voltage commands on the rotating two-axis coordinates into the three-phase voltage commands, and a voltage command computing unit computes the voltage commands based on the absolute value of deviations of the primary angular frequency and the current components along each of the rotating two-axis coordinates.
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Furutani Shinichi
Kaitani Toshiyuki
Kinpara Yoshihiko
Leydig , Voit & Mayer, Ltd.
McCloud Renata
Mitsubishi Denki & Kabushiki Kaisha
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