Control device and active filter apparatus

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United States of America Patent

PATENT NO 11451214
SERIAL NO

17291678

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Abstract

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A control device for an active filter connected in parallel with a load at an installation point with respect to an AC power supply provided in a power system includes a harmonic voltage detector to detect an m-order harmonic voltage (m is an integer not less than two) included in a voltage of the installation point, a phase corrector to correct a phase of the detected m-order harmonic voltage in accordance with whether an m-order harmonic impedance when an AC power supply side is seen from the installation point is capacitive or inductive, a command value generator to generate a first compensation command value for compensating for the m-order harmonic voltage included in the voltage of the installation point based on the m-order harmonic voltage after the correction, and an output controller to control an output of the active filter based on a first compensation command value.

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Patent Owner(s)

  • MITSUBISHI ELECTRIC CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsuda, Akihiro Tokyo, JP 56 612
Ogusa, Shinichi Tokyo, JP 9 57
Takeda, Masatoshi Tokyo, JP 46 356
Tatsumi, Tomohiko Tokyo, JP 8 18

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