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Title: Wind energy power conversion system reducing gearbox stress and improving power stability

Abstract

A wind energy power conversion system includes a gearbox, a generator, an AC to DC power converter, a DC link, and a DC to AC power converter, and at least one ultracapacitor module connected in parallel on the DC link. A method of reducing stress on a wind turbine gearbox can be performed by obtaining an unwanted frequency of the wind energy power conversion system gearbox; determining an input torque value on the input shaft of the gearbox as a function of time; determining a frequency of the input torque value; and adjusting a torque on the output shaft of the gearbox based on the unwanted frequency.

Inventors:
Issue Date:
Research Org.:
UWM Research Foundation, Inc., Milwaukee, WI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1532130
Patent Number(s):
8860236
Application Number:
12/907,651
Assignee:
UWM Research Foundation, Inc. (Milwaukee, WI)
Patent Classifications (CPCs):
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
F - MECHANICAL ENGINEERING F03 - MACHINES OR ENGINES FOR LIQUIDS F03D - WIND MOTORS
DOE Contract Number:  
EE0001386
Resource Type:
Patent
Resource Relation:
Patent File Date: 2010-10-19
Country of Publication:
United States
Language:
English

Citation Formats

Nasiri, Adel. Wind energy power conversion system reducing gearbox stress and improving power stability. United States: N. p., 2014. Web.
Nasiri, Adel. Wind energy power conversion system reducing gearbox stress and improving power stability. United States.
Nasiri, Adel. Tue . "Wind energy power conversion system reducing gearbox stress and improving power stability". United States. https://www.osti.gov/servlets/purl/1532130.
@article{osti_1532130,
title = {Wind energy power conversion system reducing gearbox stress and improving power stability},
author = {Nasiri, Adel},
abstractNote = {A wind energy power conversion system includes a gearbox, a generator, an AC to DC power converter, a DC link, and a DC to AC power converter, and at least one ultracapacitor module connected in parallel on the DC link. A method of reducing stress on a wind turbine gearbox can be performed by obtaining an unwanted frequency of the wind energy power conversion system gearbox; determining an input torque value on the input shaft of the gearbox as a function of time; determining a frequency of the input torque value; and adjusting a torque on the output shaft of the gearbox based on the unwanted frequency.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {10}
}