Power generation apparatus using AC energization synchronous generator and method of controlling the same
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United States of America Patent
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Jun 8, 2010
Grant Date -
Mar 12, 2009
app pub date -
Nov 13, 2008
filing date -
Jul 27, 2005
priority date (Note) -
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Abstract
A power generation apparatus and method includes an AC energization synchronous generator, a switching device which connects to a network disposed on a stator side of the AC energization synchronous generator, an energizing device which applies a variable frequency AC to a secondary winding of the AC energization synchronous generator, and a first voltage detection unit which detects a voltage of the switching device on the stator side. A rotational frequency of the AC energization synchronous generator is estimated or calculated based on a frequency of a stator side voltage of the switching device, while the switching device is open.
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