Multiple reference frame controller for active filters and power line conditioners
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United States of America Patent
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May 3, 1994
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N/A
app pub date -
Oct 2, 1992
filing date -
Oct 2, 1992
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Abstract
An electrical control system includes multiple frames of reference in the error path of a controller. In each such frame, a particular chosen component of the error vector appears as a constant vector and is passed through a pure integrator thus acquiring infinite gain. In the steady state, the net error vector can then be forced to have zero content at each of the targeted frequencies (as set by the rotational velocity of the frames of reference). Both parallel and series configuration of the controller are provided, as well as the control methods used by the controllers.
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