Wind turbine generator with improved operating subassemblies
Abstract
A wind turbine includes a yaw spring return assembly to return the nacelle from a position to which it has been rotated by yawing forces, thus preventing excessive twisting of the power cables and control cables. It also includes negative coning restrainers to limit the bending of the flexible arms of the rotor towards the tower, and stop means on the rotor shaft to orient the blades in a vertical position during periods when the unit is upwind when the wind commences. A pendulum pitch control mechanism is improved by orienting the pivot axis for the pendulum arm at an angle to the longitudinal axis of its support arm, and excessive creep is of the synthetic resin flexible beam support for the blades is prevented by a restraining cable which limits the extent of pivoting of the pendulum during normal operation but which will permit further pivoting under abnormal conditions to cause the rotor to stall.
- Inventors:
-
- (24 Stonepost Rd., Glastonbury, CT 06033)
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- OSTI Identifier:
- 865622
- Patent Number(s):
- 4545728
- Assignee:
- Cheney, Jr., Marvin C. (24 Stonepost Rd., Glastonbury, CT 06033)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F03 - MACHINES OR ENGINES FOR LIQUIDS F03D - WIND MOTORS
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05B - INDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS, TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY
- DOE Contract Number:
- AC04-76
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- wind; turbine; generator; improved; operating; subassemblies; yaw; spring; return; assembly; nacelle; position; rotated; yawing; forces; preventing; excessive; twisting; power; cables; control; negative; coning; restrainers; limit; bending; flexible; arms; rotor; towards; tower; stop; means; shaft; orient; blades; vertical; periods; unit; upwind; commences; pendulum; pitch; mechanism; orienting; pivot; axis; arm; angle; longitudinal; support; creep; synthetic; resin; beam; prevented; restraining; cable; limits; extent; pivoting; normal; operation; permit; abnormal; conditions; stall; preventing excessive; improved operating; stop means; wind turbine; normal operation; longitudinal axis; turbine generator; vertical position; control mechanism; rotor shaft; power cable; abnormal condition; normal conditions; flexible beam; spring return; normal condition; support arm; power cables; pivot axis; /416/
Citation Formats
Cheney, Jr., Marvin C. Wind turbine generator with improved operating subassemblies. United States: N. p., 1985.
Web.
Cheney, Jr., Marvin C. Wind turbine generator with improved operating subassemblies. United States.
Cheney, Jr., Marvin C. Tue .
"Wind turbine generator with improved operating subassemblies". United States. https://www.osti.gov/servlets/purl/865622.
@article{osti_865622,
title = {Wind turbine generator with improved operating subassemblies},
author = {Cheney, Jr., Marvin C.},
abstractNote = {A wind turbine includes a yaw spring return assembly to return the nacelle from a position to which it has been rotated by yawing forces, thus preventing excessive twisting of the power cables and control cables. It also includes negative coning restrainers to limit the bending of the flexible arms of the rotor towards the tower, and stop means on the rotor shaft to orient the blades in a vertical position during periods when the unit is upwind when the wind commences. A pendulum pitch control mechanism is improved by orienting the pivot axis for the pendulum arm at an angle to the longitudinal axis of its support arm, and excessive creep is of the synthetic resin flexible beam support for the blades is prevented by a restraining cable which limits the extent of pivoting of the pendulum during normal operation but which will permit further pivoting under abnormal conditions to cause the rotor to stall.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1985},
month = {Tue Jan 01 00:00:00 EST 1985}
}