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SIMUWind Combination of multi body system simulation, electrical simulation and Condition monitoring

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Repower Systems AG SEG Schaltanlagen-Elektronik Ger te GmbH Svendborg Brakes A/S ... Electrical simulation model (1) 12. Weitere Kooperationspartner: ... – PowerPoint PPT presentation

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Title: SIMUWind Combination of multi body system simulation, electrical simulation and Condition monitoring


1
SIMU-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
2
Motivation
  • 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

3
Project objective is the
development of a combined multi sensor, multi
body condition monitoring system for wind turbine
drive trains
  • reduction of down times
  • 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

4
Project 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
5
Measurement 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

6
Measurement 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

7
Measurement system (3)
8
Measurement system (4)
  • 22 strain gauges at the base frame

9
MBS-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

10
MBS-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

11
Electrical simulation model (1)
12
Co-Simulation (time domain)
  • calculation of the electro-mechanical system

13
Results (frequency domain)
  • natural frequencies

bending rotor (flapwise)
bending rotor (edgewise)
torsional frequencies
axial mode shape
14
Results (mode shapes)
  • mode shapes of the rigid drive train model

15
Results (mode shapes)
  • mode shapes of the flexible drive train model

16
Results (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
17
Results (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

18
Integrated system
Condition-Monitoring-System
Multi body simulation model
Integrated system
Electrical simulation model
19
SIMU-Wind Combination of multi body simulation,
electrical simulation and Condition monitoring a
powerful research development Thank you for
your attention!
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