Method for controlling an alternating current electric machine, and a frequency converter

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United States of America Patent

PATENT NO 9912265
SERIAL NO

14601979

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Invention is related to a method for controlling an alternating current electric machine with a frequency converter including a controllable machine bridge and a controllable line bridge, and a corresponding frequency converter. The method comprises calculating a line bridge control signal, controlling line current through the line bridge using the line bridge control signal, measuring or estimating rotor pole position of the electric machine, calculating a machine bridge control signal as a function of the rotor pole position, updating the machine bridge control signal when the rotor pole position changes, and controlling current of the electric machine through the machine bridge using the machine bridge control signal.

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Patent Owner(s)

  • KONE CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Stolt, Lauri Helsinki, FI 38 176

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