Method for controlling a converter
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United States of America Patent
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Sep 1, 2015
Grant Date -
Dec 20, 2012
app pub date -
Jun 18, 2012
filing date -
Jun 17, 2011
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Abstract
A method controls a three-phase converter with a voltage intermediate circuit by pulse-width modulation for supplying a polyphase system, in particular a three-phase machine. The converter is operated with at least two different modulation methods which are selected from among the group of modulation methods which includes single-phase switching, two-phase switching and three-phase switching, and for changeovers to be made between the at least two different modulation methods depending on the operating state of the polyphase system.
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