Control device for AC rotating machine and electric power steering device
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United States of America Patent
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Jan 23, 2018
Issued Date -
N/A
app pub date -
Mar 19, 2014
filing date -
Mar 19, 2014
priority date (Note) -
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Abstract
A control device for an AC rotating machine includes an electric-power converter that has two or more switching devices connected with an AC rotating machine and applies a voltage to the AC rotating machine, a switch that opens or closes an electric connection path between the AC rotating machine and the electric-power converter, a switching device controller that controls opening and closing of the switching devices, and a switch controller that controls opening and closing of the switch; when a failure occurs in the electric-power converter, the AC rotating machine, or the electric connection path therebetween, the switch controller controls opening and closing of the switch in accordance with rotation information on the AC rotating machine.
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