WinDrive® - A New Drive Train Concept for Wind Turbines

SIMPACK User Meeting 2006, Baden-Baden

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constant speed

variablespeed

FixedSpeed

VariableSpeed

year 1955

FixedSpeed

VariableSpeed

FixedSpeed

VariableSpeed

year 1955

WinDrive® – Based on Years of Experience

Variable Speed

FixedSpeed

Variable Speed

FixedSpeed

Variable Speed

FixedSpeed

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WinDrive® - Main Components

revolving planetary gear

stationary planetary gear

guide vane

hydrodynamic torque converter

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Wind Turbine – Drive Train

CoupCoup--lingling&&

BrakeBrakeDiscDisc

TP

V

WinDriveWinDrive®®

TV

P

Main GearMain Gear SynchronousSynchronousGeneratorGenerator

GridGridRotorRotor

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Wind Turbine – Controllers

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Wind Turbine – Operating Modes

rotor speed

pow

er

Rn

RPacceleration

synchronization

optimized energy production

speed control

power control

:, RR Pn rated speed, rated power

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Torque Converter

pump wheel

turbine wheel

guide vanes

Pump Torque

Turbine Torque

52PPOilP DM ωλρ=

PT MM µ=

:,µλ nonlinear functions –stationary measurements

where

:PD profile diameter:Oilρ oil density:Pω pump velocity

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1000kW-MotorI=300 kgm^2

P500

Test Bench Layout

Torque Converter Type EL10ZFGTest conditions

for 5 MW WinDrive

Test results:

dead time

response time

Torque Converter Dynamics - Test Components

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Torque Converter Dynamics - Test Components

roto

rpow

erge

nera

tion

[kW

]

actuator dead time = 8 ms

actuator + guide vane speed = 500 mm/s4850

1600

950

300

4200

3550

2900

2250

torque converter response time = 8 ms

guid

e va

ne p

ositi

on [%

]

torq

ue c

onve

rter t

orqu

e [N

m]

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synchronous generator (self - excited)

Synchronous Generator / Grid

Matlab/Simulink models developed by the University of Chemnitz

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Model 1: Matlab/Simulink - Wind Turbine

synchronous generator

guide vane controller wind turbine

drive train

pitch angle controller

aerodynamic torques

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Model 2: SIMPACK in Co-Simulation with

pitch angle controller

SIMPACK• wind turbine drive train

MATLAB / SIMULINK• aerodynamics• torque converter• synchronous generator• control system

Matlab/Simulink

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Drive train – test field 6.3 MW

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Drive train – test field 6.3 MW

AsynchronousMotor

Vorecon SynchronousGenerator

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Summary - WinDrive® Concept Advantages

• Space Reduction

• Weight Reduction

• Torque Peak Reduction

• Vibration Damping

• Short Term Energy Storage

• Excellent Grid Quality

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test fieldsoftware

Outlook – Hardware-in-the-Loop Simulation

pitch WinDrivemain gear

MH

rotor

Hβ

vW

MR

nR

nE

ME

synchronousgenerator

MG

nG

=const.

E

master controller

nE

controllerpitch

controllerguide vane

controllerexcitation

motor transfer gearM

M

ME

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Outlook – Detailed Aerodynamic Torques

SPLlTTER.dll

EXPORT.dllStrecke

EXPORT.dllRegler (Pitch)

GH Bladed Flex5 FAST

AeroDyn(as a subroutine)

possible customer software, all usinginterface in the style of Garrad Hassan‘s Bladed

MATLAB/Simulink-ModellSIMPACK

via S-FunctiondSPACE – HiL-Simulation

generating real-time capable code

for customer‘scomputation/evaluation

GH Bladed Interface

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