| US 7,573,146 B2 | ||
| Stall controller and triggering condition control features for a wind turbine | ||
| David Gregory Calley, Flagstaff, Ariz. (US) | ||
| Assigned to Southwest Windpower, Inc., Flagstaff, Ariz. (US) | ||
| Filed on Jul. 28, 2008, as Appl. No. 12/181,108. | ||
| Application 12/181108 is a division of application No. 11/487343, filed on Jul. 17, 2006, granted, now 7,420,288. | ||
| Claims priority of provisional application 60/760407, filed on Jan. 20, 2006. | ||
| Prior Publication US 2009/0021022 A1, Jan. 22, 2009 | ||
| Int. Cl. F03D 9/00 (2006.01) | ||
| U.S. Cl. 290—44 [290/52; 290/53; 290/54; 290/55; 322/29] | 8 Claims |
| 1. A wind turbine triggered operation circuit, the wind turbine including an electrical output generating device, and a control
circuit coupled to the electrical output generating device, the electrical output generating device having a plurality of
windings, the wind turbine triggered operation circuit comprising:
a shutdown switch coupled to the plurality of windings, the shutdown switch being capable of increasing current based torque
opposing operation of the wind turbine; and
a shutdown control module coupled to the shutdown switch;
wherein the shutdown control module activates shutdown of the wind turbine via the shutdown switch upon receiving a signal
from a triggering device that an emergency condition exists.
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