Upgrading a Wind Turbine: Research Paper on Wind Turbine

Upgrading a Wind Turbine 1
RESEARCH PAPER ON THE UPGRADING A WIND TURBINE
A Research Paper on Wind Turbine By
Student’s Name
Name of the Professor
Institutional Affiliation
City/State
Year/Month/Day

Upgrading a Wind Turbine 2
INTRODUCTION
Given that the DTU MW wind turbine has the properties below:
Turbine data:
Generator size: Pmax = 10MW
Rotor diameter: D = 178m
Blade data:
Length of blade: L = 86m
Height of blade at root: h = 2.5m
Flexural rigidity at the root: EIroot = 6.1010Nm2
Material stiffness used in the blade: E = 40GPa
There is need of upgrading the turbine with a new generator on PUpgrademax = 15MW
Question 1
During this upgrade, with how many percent will the maximum load Tmax on the turbine
increase?

Upgrading a Wind Turbine 3

Upgrading a Wind Turbine 4
(Tong, 2014)
Question 2
The blade of the turbine can be considered a fixed cantilever beam with a linear variation of
the load (see the figure). If question 1 was not solved, please use to following two loads (Tmax
= 1.5MN; Tupgrade max = 2.0MN).
a. What will be the maximum normal-stresses at the root section before the upgrade
b. What will be the maximum normal-stresses at the root section after the upgrade