Title: SIMUWind Combination of multi body system simulation, electrical simulation and Condition monitoring
1SIMU-WindCombination of multi body system
simulation, electrical simulation and Condition
monitoring a powerful research development
Research Project of Bundesministeriums für
Wirtschaft und Arbeit (BMWA) in scope of the
support program InnoNet
2Motivation
- increasing risk of damage/defects in combination
with increasing performance
- knowledge loss of the actual operating conditions
- increasing performance requirements for all drive
train components
- class of insurance claims for determined revision
cycle in Germany
3Project objective is the
development of a combined multi sensor, multi
body condition monitoring system for wind turbine
drive trains
- analysis of abnormal drive train operating
conditions
- increasing life cycle of drive train elements
- integrated consideration of the drive train of
wind turbines
- optimized dimensioning of drive train elements
4Project partners
Research institutes
IMM, TU Dresden
IBH, RWTH Aachen
Industrial partners
ACIDA GmbH
ITI GmbH
SEG GmbH Co.KG
VEM Sachsenwerk
Svendborg Brakes A/S
REpower Systems AG
Eickhoff Maschinenfabrik GmbH
Centa Antriebe Kirschey GmbH
5Measurement system (1)
- sensors at the nacelle
- drive train
- base frame
- (data storage on industrial PC)
- 16 sensors in tower base
- electrical signals of generator and converter
- parallel data storage with signals of drive train
- remote control
6Measurement system (2)
64 sensors at the drive train
- torsion and bending at the rotor shaft and
generator shaft - movement of the rotor shaft belonging to bearing-
and gearbox housing - movement inside gearbox
- gearbox and generator temperature
- vibration at gearbox and generator
7Measurement system (3)
8Measurement system (4)
- 22 strain gauges at the base frame
9MBS-Model (modular design)
- mechanical system consists of
- rotor and blades, main shaft
- gear unit
- coupling, brake disk
- generator
- baseframe
- controller consists of
- pitch controller
- output power
- controller
- speed controller
- brake controller
- electrical system consists of
- generator
- converter
- grid
10MBS-Model (components)
- simulation model included
- rotor model single blade and complete rotor
(bending in flap- and edge-wise direction) - drive train torsional vibration model (with
rigid and flexible rotor) - MBS model (with rigid and flexible rotor)
- nacelle flexible base frame model
- electrical system asynchronous generator model
with converter and grid model - aerodyn. model wind to moment converter
model with cp equation
11Electrical simulation model (1)
12Co-Simulation (time domain)
- calculation of the electro-mechanical system
13Results (frequency domain)
bending rotor (flapwise)
bending rotor (edgewise)
torsional frequencies
axial mode shape
14Results (mode shapes)
- mode shapes of the rigid drive train model
15Results (mode shapes)
- mode shapes of the flexible drive train model
16Results (electrical signals)
voltage drop at the net meeting point uPCC
10000
0
Air gap moment Nm
-10000
-20000
s
0.4
0.5
0.6
0.7
0.8
0.9
17Results (electrical signals)
- non linear property power dependency of
generator temperature
- power loss dependent of temperature
2400
1800
Power kW
1200
600
0
120
80
Temp. Gen. C
40
0
23.04.2005
24.04.2005
25.04.2005
- verification of temperature dependency by
measuring data analysis
18Integrated system
Condition-Monitoring-System
Multi body simulation model
Integrated system
Electrical simulation model
19SIMU-Wind Combination of multi body simulation,
electrical simulation and Condition monitoring a
powerful research development Thank you for
your attention!