Wind--telligence
From Vibration to Performance and Reliability
ANDREA SANCHEZ,
ERIC KAMPHUES
.
UNIVERISTEIT TWENTE, INDEPENDENT EXPERTS
AGENDA
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Who we are : UT , IX
Challenges of vibration assessment in wind turbines
Our proposition:
Example 1. Artificial damage
Example 2. Generator
Conclusions
Further steps: Wind-Telligence
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WHO WE ARE
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ON COINS AND GLASSES
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ON COINS AND GLASSES (II)
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Performance and Reliablity are two faces of the
same coin: lost energy.
Vibration monitoring helps to track the lost energy.
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FINDING BACK ENERGY IN THE WIND CONTEXT
CHALLENGES OF VIBRATION ASSESSMENT FOR WIND TURBINES
•
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High variability for input and
output power
• Focus on component level:
bearings and gears
• System level assessment is left
unattended.
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OUR PROPOSITION
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Functional and Damage approaches combined.
Assessing component not only by the physical characteristics of damage but
the effects that affect their functionality.
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PHOTO, SIGNALS
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ARTIFICIAL DAMAGE: EXAMPLE 1
Lab setup with artificial damage at:
- Inner race
- Outer race
- Rolling element
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ARTIFICIAL DAMAGE: EXAMPLE 1
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FEATURES: DAMAGE BASED VS. FUNCTIONALITY BASED
Outer
No
damage race
Inner Rolling
race element
Outer
No
damage race
Inner Rolling
race element
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WIND TURBINE ENVIRONMENT
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1. Load / current fluctuation every second
2. . Multiple dynamic phenomena taking place (f.i. transient, non-linearies)
3. Damage severity key to identify optimum time to intervention
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WIND TURBINE GENERATOR: EXAMPLE 2
TIME SIGNALS
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WIND TURBINE GENERATOR: EXAMPLE 2
TIME SIGNALS FOR DIFFERENT OPERATIONAL STATES
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WIND TURBINE GENERATOR: EXAMPLE 2
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SCATTER 10HZ - 2000HZ
Y=ax +b
a
b
R2
M6 0-2Khz
7e-5
0,0441
0,6241
M10 0-2Khz
7e-5
0,0632
0,8022
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WIND TURBINE GENERATOR: EXAMPLE 2
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SCATTER 10HZ - 2000HZ
Y=ax +b
M6 2-10Khz
a
b
R2
4e-4
0,1599
0,4686
0,258
0,4937
M10 2-10Khz 4e-4
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WIND TURBINE GENERATOR: EXAMPLE 2
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MODULATION PHENOMENA
Operation
Damage
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CONCLUSIONS
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Focusing on funtionality besides damage is key
to find the aspects that affect performance and
reliability.
.. And there is more to develop…
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FUTURE PLANS
FunctionBehaviorStructure
• “ FMEA++ “
• Relating
vibration
features with
failures
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Measurem
ent
• Strain and
current as
performance
baseline
Model
• “ Glass-box”
models f.i.
probabilistic
graphical
model
• Vibration
Design
• embedded
processing
• wireless
shaft
sensing
Wind-Telligence 2017-2018. NWO-Research on ICT and Wind Industry
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Thank–you!
ind--telligence
m Vibration to Performance and Reliability
ACT: [email protected]
[email protected]