Electricity: motive power systems – Constant motor current – load and/or torque control
Reexamination Certificate
2007-12-12
2010-12-07
Duda, Rina I (Department: 2837)
Electricity: motive power systems
Constant motor current, load and/or torque control
C318S599000, C318S811000
Reexamination Certificate
active
07847500
ABSTRACT:
Control technique of a synchronous motor capable of suppressing rotation pulsation caused by individual difference without complicating control algorithm is provided. A pulsation generator superimposing a pulsation component anticipated in advance to a current command for the synchronous motor and a correction current generator superimposing a correction signal substantially having an average value of zero to the current command are provided in a synchronous motor control device. By this configuration, the correction signal suppressing a distortion component is superimposed to a value of the current command with a simplified control configuration. Torque pulsation is suppressed by determining the correction signal from difference between a detection current and a command current.
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Iwaji Yoshitaka
Kokami Yasuhiko
Kurosawa Minoru
Nakatsugawa Junnosuke
Duda Rina I
Renesas Technology Corporation
Townsend and Townsend / and Crew LLP
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