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Title: Structural Design Optimization of Doubly-Fed Induction Generators Using GeneratorSE

Abstract

A wind turbine with a larger rotor swept area can generate more electricity, however, this increases costs disproportionately for manufacturing, transportation, and installation. This poster presents analytical models for optimizing doubly-fed induction generators (DFIGs), with the objective of reducing the costs and mass of wind turbine drivetrains. The structural design for the induction machine includes models for the casing, stator, rotor, and high-speed shaft developed within the DFIG module in the National Renewable Energy Laboratory's wind turbine sizing tool, GeneratorSE. The mechanical integrity of the machine is verified by examining stresses, structural deflections, and modal properties. The optimization results are then validated using finite element analysis (FEA). The results suggest that our analytical model correlates with the FEA in some areas, such as radial deflection, differing by less than 20 percent. But the analytical model requires further development for axial deflections, torsional deflections, and stress calculations.

Authors:
 [1];  [1];  [1];  [2]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
  2. Georgia Institute of Technology
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
OSTI Identifier:
1409305
Report Number(s):
NREL/PO-5000-70321
DOE Contract Number:
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at International Conference on Future Technologies in Wind Energy, 24-26 October 2017, Boulder, Colorado
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY; 24 POWER TRANSMISSION AND DISTRIBUTION; induction generator; structural design; finite element modeling; analysis; GeneratorSE

Citation Formats

Sethuraman, Latha, Fingersh, Lee J, Dykes, Katherine L, and Arthurs, Claire. Structural Design Optimization of Doubly-Fed Induction Generators Using GeneratorSE. United States: N. p., 2017. Web.
Sethuraman, Latha, Fingersh, Lee J, Dykes, Katherine L, & Arthurs, Claire. Structural Design Optimization of Doubly-Fed Induction Generators Using GeneratorSE. United States.
Sethuraman, Latha, Fingersh, Lee J, Dykes, Katherine L, and Arthurs, Claire. Mon . "Structural Design Optimization of Doubly-Fed Induction Generators Using GeneratorSE". United States. doi:. https://www.osti.gov/servlets/purl/1409305.
@article{osti_1409305,
title = {Structural Design Optimization of Doubly-Fed Induction Generators Using GeneratorSE},
author = {Sethuraman, Latha and Fingersh, Lee J and Dykes, Katherine L and Arthurs, Claire},
abstractNote = {A wind turbine with a larger rotor swept area can generate more electricity, however, this increases costs disproportionately for manufacturing, transportation, and installation. This poster presents analytical models for optimizing doubly-fed induction generators (DFIGs), with the objective of reducing the costs and mass of wind turbine drivetrains. The structural design for the induction machine includes models for the casing, stator, rotor, and high-speed shaft developed within the DFIG module in the National Renewable Energy Laboratory's wind turbine sizing tool, GeneratorSE. The mechanical integrity of the machine is verified by examining stresses, structural deflections, and modal properties. The optimization results are then validated using finite element analysis (FEA). The results suggest that our analytical model correlates with the FEA in some areas, such as radial deflection, differing by less than 20 percent. But the analytical model requires further development for axial deflections, torsional deflections, and stress calculations.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Nov 13 00:00:00 EST 2017},
month = {Mon Nov 13 00:00:00 EST 2017}
}

Conference:
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