Post on 12-Apr-2017
transcript
#WindWebinar
#WindWebinar
ROMO Wind is a technology and service company and the exclusive provider of the patented iSpin technology. We provide our customers with the best solutions for measuring, monitoring and improving wind turbine performance for a better return on their investment.
ROMO Wind at a glance
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ROMO Wind AG Baarer Strasse 80 6300 Zug Switzerland sales@romowind.com Offices in Denmark, Germany, Italy, UK, Ireland, Spain, Switzerland and France.
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
Our partner in North America:
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Agenda
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Create transparency in your wind park operations by monitoring 3
A solution: The iSpin technology 2
The problem: Inaccurate wind measurements at wind turbines 1
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Illustration of why nacelle anemometers don’t work
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Wind vane issues • Even very small installation errors mean large yaw misalignments • Sensor resolution • Errors with the wind sensors • Turbines today do not monitor and correct yaw misalignments
Site conditions differ • Terrain conditions • Turbine prototype test conditions • Other wind turbines
Ancillary equipment alters the nacelle flow • Retrofitting of e.g. new aviation lights • Relocation or change of wind direction sensor • Nacelle based lidars
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Agenda
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3
2
1
Create transparency in your wind park operations by monitoring
A solution: The iSpin technology
The problem: Inaccurate wind measurements at wind turbines
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Overcoming issues with current wind measurements
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Control loads
Yaw misalignment
correction
Relative power curve comparisons
Improve production
forecast
iSpin
Improve performance
Reduce
maintenance costs
Life time extension
Optimise revenues
Monitor performance
Position of conventional nacelle
anemometer
Position of iSpin spinner anemometer
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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The iSpin technology
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• Invented and developed by DTU / RISØ in Denmark since 2004 • Innovative application of “old” proven ultrasonic measurement technology • Since April 2013: IEC 61400-12-2 standard for performance measurement • Acquired and industrially developed by ROMO Wind since 2011
• What iSpin measures:
- Wind speed (rotor speed and “free” wind) - Yaw misalignment - Inclination angle - Turbulence intensity - Temperature - Air density (by adding an air pressure sensor) - Wind direction (by adding a nacelle direction sensor)
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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How the spinner anemometer works
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38 degree yaw misalignment 0 degree yaw misalignment
Measured wind speed by the 3 sensors at wind direction 90° to rotor swept area
Measured wind speed by the 3 sensors on a wind turbine with yaw misalignment
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Agenda
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3
2
1
Create transparency in your wind park operations by monitoring
A solution: The iSpin technology
The problem: Inaccurate wind measurements at wind turbines
Power performance 3.3
Advanced wind measurements 3.2
Yaw misalignments 3.1
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
#WindWebinar
Agenda
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3
2
1
Create transparency in your wind park operations by monitoring
A solution: The iSpin technology
The problem: Inaccurate wind measurements at wind turbines
Power performance 3.3
Advanced wind measurements 3.2
Yaw misalignments 3.1
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
#WindWebinar
Yaw misalignment measured with iSpin
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static yaw misalignment
range of dynamic yaw misalignment
relevant range of wind speeds
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Yaw misalignment monitoring is necessary
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15o initial yaw misalignment
Correction
Wind vane exchange
Re-correction
Wind vane exchange Aviation lights
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Static yaw misalignments are very frequent
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ROMO Wind’s static yaw misalignment statistics (266 wind turbines)
Static yaw misalignment <4° 4°- 8° 8°-12° 12°-16° >16°
Distribution 48% 28% 14% 5% 5%
à 1,98% more AEP by having the static yaw misalignments corrected.
Every day without yaw misalignment optimisation is a net loss.
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Yaw misalignments = loss of production
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Yaw misalignments
Lower production
4° 0.5%
6° 1.1%
8° 1.9%
10° 3.0%
12° 4.3%
14° 5.9%
16° 7.6%
18° 9.5%
Relative power curve comparison
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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All turbine types suffer yaw misalignment – to varying degrees
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Per turbine type 21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Benchmarking of yaw control (1/2)
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Bad yaw control Average yaw control Good yaw control
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Yaw misalignments = higher loads*
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*report by GL Garrad Hassan, Fatigue Load Calculations for ROMO Wind to Assess Sensitivity to Changes in 10-min Mean Yaw Error, 29-11-2012, report is publicly available on our website www.romowind.com in the “Knowledge centre” section.
.
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Agenda
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3
2
1
Create transparency in your wind park operations by monitoring
A solution: The iSpin technology
The problem: Inaccurate wind measurements at wind turbines
Power performance 3.3
Advanced wind measurements 3.2
Yaw misalignments 3.1
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
#WindWebinar
Advanced wind measurements: wind speed
Page 19 21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
#WindWebinar Page 20
24% turbulence intensity
21% turbulence intensity
20% turbulence intensity
20% turbulence intensity
Enables comparison of the original site evaluation with measured data for turbulence intensity and flow inclination. IEC 61400: • Turbulence intensity A < 18%; B < 16% • Flow inclination < 8°
Turbulence intensity and flow inclination
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Advanced wind measurements: turbulence intensity
Page 21 21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Advanced wind measurements: flow inclination
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Agenda
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3
2
1
Create transparency in your wind park operations by monitoring
A solution: The iSpin technology
The problem: Inaccurate wind measurements at wind turbines
Power performance 3.3
Advanced wind measurements 3.2
Yaw misalignments 3.1
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
#WindWebinar
Power Curve Measurements
Page 24 21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
#WindWebinar Page 25
High correlation between met mast and iSpin
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
#WindWebinar Page 26
Power curve comparison (1/2)
Met mast Nacelle based LiDAR
Nacelle anemometer iSpin
Filtered for wake, air density and wind sector according to IEC standard. iSpin shows 30% less variation on wind speeds than met-mast and LiDAR
Forward looking wind measurement Local wind measurement
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
#WindWebinar Page 27
Power curves and scatter (std. dev.) in undisturbed inflow 101 – 229 deg
0
500
1000
1500
2000
2500
0 5 10 15 20 25
Pow
er [k
W]
Wind speed [m/s]
Manufacturer
SA
Lidar
Met-mast
0
20
40
60
80
100
120
140
160
180
0 5 10 15 20
Sta
ndar
d de
viat
ion
[kW
]
Wind speed [m/s]
SA
Lidar
Met-mast
Comparison with the IEC met mast measurement: iSpin 2 IEC: Δ = 0,4 % Lidar 2 IEC: Δ = -7,7 %
Comparison with the warrantied power curve: IEC 2 PCw: Δ = 1,2 % iSpin 2 PCw: Δ = 1,6 % Lidar 2 PCw: Δ = -6,5 %
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
#WindWebinar Page 28
Power curves – undisturbed inflow 101 – 229 deg
Power curves for turbines 2,3,4,5,6,10,11,12,13 Turbines 7,8,9 running in noise reduced mode – different power curves. Turbine 1 with different installation mode. Data #2,3,4,5,6: 7 Sep -> 22 Oct 2015 #1,10,11,12: 23 Sep -> 22 Oct 2015
0
500
1000
1500
2000
2500
Pow
er [k
W]
Wind speed [m/s]
Power curves - undisturbed inflow
NKE02, AEP=9.196 GWh, 1.10% w.r.t MF NKE03, AEP=9.189 GWh, 1.02% w.r.t MF NKE04, AEP=9.244 GWh, 1.63% w.r.t MF NKE05, AEP=9.260 GWh, 1.81% w.r.t MF NKE06, AEP=9.077 GWh, -0.20% w.r.t MF NKE10, AEP=9.198 GWh, 01.12% w.r.t MF NKE11, AEP=9.130 GWh, 0.38% w.r.t MF NKE12, AEP=9.292 GWh, 2.16% w.r.t MF NKE13, AEP=9.0167 GWh, -0.88% w.r.t MF Manufacturer (MF) power curve
Comparison with the IEC met mast measurement: iSpin 2 IEC: Δav. = 0,4 %; Δmax = 1,0 %
Comparison with the warranted power curve: iSpin 2 PCw: Δav. = 1,3 %; Δmax = 2,2 % (except for NKE01 where sensor mounting was slightly different, 4.7%)
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
#WindWebinar Page 29
Power curve comparison (2/2)
Met mast Nacelle based LiDAR
Nacelle anemometer iSpin
Forward looking wind measurement Local wind measurement
No filtering for wind sector or wake. The nacelle anemometer power curve as seen in SCADA system.
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
#WindWebinar Page 30
Power curves and scatter (std. dev.) in undisturbed inflow 0 – 360 deg
0
500
1000
1500
2000
2500
0 5 10 15 20 25
Pow
er [k
W]
Wind speed [m/s]
Manufacturer
SA
Lidar
Met-mast
0
100
200
300
400
500
600
0 5 10 15 20 25
Sta
ndar
d de
viat
ion
[kW
]
Wind speed [m/s]
SA
Lidar
Met-mast
Comparison with the IEC power curve measurement: iSpin 2 IEC*: Δ = 0,1 % *… IEC compliant in the free wind sectors only
Comparison with the warrantied power curve: iSpin 2 PCw*: Δ = 1,63 % *… IEC compliant in the free wind sectors only
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
#WindWebinar Page 31
Power curves 0–360 deg including wakes
Power curves for turbines 2,3,4,5,6,10,11,12,13 Turbines 7,8,9 running in noise reduced mode – different power curves (not shown) Turbine 1 – different installation mode Data #2,3,4,5,6: 7 Sep -> 22 Oct 2015 #1,10,11,12: 23 Sep -> 22 Oct 2015
0
500
1000
1500
2000
2500
Pow
er [k
W]
Wind speed [m/s]
Power curves 0-360 deg including wakes
NKE02, AEP=9.179 GWh, 0.92% w.r.t MF NKE03, AEP=9.158 GWh, 0.69% w.r.t MF NKE04, AEP=9.214 GWh, 1.30% w.r.t MF NKE05, AEP=9.203 GWh, 1.18% w.r.t MF NKE06, AEP=9.056 GWh, -0.43% w.r.t MF NKE10, AEP=9.135 GWh, 0.43% w.r.t MF NKE11, AEP=9.079 GWh, -0.18% w.r.t MF NKE12, AEP=9.237 GWh, 1.56% w.r.t MF NKE13, AEP=8.967 GWh, -1.41% w.r.t MF Manufacturer (MF) power curve
Comparison with the IEC met mast measurement: iSpin 2 IEC: Δav. = -0,3 %; Δmax = 0,4 %
Comparison with the warranted power curve: iSpin 2 PCw: Δav. = 0,9 %; Δmax = 1,6 % (except for NKE01 where sensor mounting was slightly different, 4.7%)
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
#WindWebinar
Summary: iSpin brings tangible and large benefits
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Increased annual energy production: • Possible to measure and correct static yaw alignments (~2.0 % AEP increase) • Enables improved turbine operation to account for sector wise characteristics based on actual
measurements (turbulence intensity, flow inclination, etc.) • Enables assessment and documentation of the effects of other optimisation technologies by accurately
measuring relative power curve changes • Enables intervention if the wind turbine underperforms • Some turbines can further increase the AEP by 0.2-1.5% by improving dynamic yaw problems. Requires
collaboration with turbine manufacturer
Prolonged turbine life time and reduced maintenance costs • Correcting yaw misalignment reduces loads; stop decreasing life time and increasing maintenance costs of
major components (rotor, drivetrain, gearbox) • Optimised turbine operation resulting from measurement of damaging wind conditions (flow inclinations and
turbulence intensity) in all wind sectors can also prolong life time and reduce maintenance costs
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Questions?
Karl Fatrdla Head of Sales Romo Wind AG 619.606.8797 kf@romowind.com
Michelle Froese Editor - Moderator Windpower Engineering mfroese@wtwhmedia.com @Windpower_Eng
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cos² relationship
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Turbine comparison
Relative power curve comparison
Documented proof
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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All turbine types suffer yaw misalignment – to varying degrees
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Per turbine type 21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Yaw misalignment measured with iSpin vs. lidar
Page 36 21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Yaw misalignment measured with iSpin vs. lidar open sectors*
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*Wind sectors with wake effects or terrain obstacles filtered out
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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EFFECT OF O&M RE-CALIBRATION OF WIND SENSORS
Page 38 21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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RE-CALIBRATION OF WIND SENSORS
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YM measured (degrees)
YM after OEM recalibration
Delta YM after recalibration
Turbine #1 7,8 11,0 3,2
Turbine #2 1,8 4,6 2,8
Turbine #3 4,2 6,8 2,6
Turbine #4 3,8 4,8 1
Turbine #5 6,7 7,2 0,5
Turbine #6 8,7 8,3 -0,4
Turbine #7 8,6 7,8 -0,8
Turbine #8 7,9 7,0 -0,9
Turbine #9 11,9 11,0 -0,9
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
#WindWebinar Page 40
Relative power curve monitoring
For 6m/s annual wind speed with Rayleigh wind distribution the increase would be around 5.5%
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
#WindWebinar Page 41
iSpin measurements not affected by vortex generator installation or yaw misalignment correction
iSpin vs met mast Nacelle anemometer vs met mast
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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iSpin Basic
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Designed for: • Turbine owners and operators who want to
maximise the revenue from their installed base • Permanent installation Data included in the quarterly reports: • Static yaw misalignment
Power supply: • Fixed power supply in hub: 230 VAC, 24 VDC
or 24 VAC (other by request)
Service technician interface: • SMS via mobile phone • LEDs on the iSMB HW
Requirements: • Local SIM card for SMS and dial up data
(2G or 3G GSM coverage)
3 x Spinner Anemometer
Sensor Control Unit (Metek Box)
Hub/rotor Nacelle
Power supply
Data Collection and Communication Unit
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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iSpin Advanced
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3 x Spinner Anemometer
Sensor Control Unit (Metek Box)
Hub/rotor Nacelle
Power supply
Data Collection and Communication Unit
Designed for: • Turbine owners and operators • Permanent installation Data included in the quarterly reports: • All values from iSpin Basic • Wind speed • Turbulence intensity • Flow inclination • Temperature
Customer data interface: • Modbus/TCP for online data • FTP for historical data (10 min. avr.)
ROMO data interface: • Mita-Teknik Gateway
Power supply: • Fixed power supply in hub: 230 VAC, 24 VDC
or 24 VAC (other by request) Service technician interface: • Web browser with Java
Requirements: • Internet access via Broadband or local SIM
card for 3G data (3G GSM coverage on site)
Nacelle position Sensor (GPS) option 1*
ROMO Wind Data Centre via Internet
Nacelle power supply 230 VAC
Nacelle position Sensor/ option 2*
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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iSpin Advanced Plus
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3 x Spinner Anemometer
Sensor Control Unit (Metek Box)
Hub/rotor Nacelle
Power supply
Data Collection and Communication Unit
ROMO Wind Data Centre via Internet
Nacelle power supply 230 VAC
Nacelle position Sensor/ option 2*
Nacelle position sensor (GPS) option 1* and Air pressure sensor
Designed for: • Turbine owners and operators • Permanent installation Data included in the quarterly reports: • All values from iSpin Advanced • Air density • Relative power curve
Customer data interface: • Modbus/TCP for online data • FTP for historical data (10 min. avr.)
ROMO data interface: • Mita-Teknik Gateway
Power supply: • Fixed power supply in hub: 230 VAC, 24 VDC
or 24 VAC (other by request) Service technician interface: • Web browser with Java
Requirements: • Internet access via Broadband or local SIM
card for 3G data (3G GSM coverage on site)
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Installation of iSpin in the spinner
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• Installed from the inside of the spinner in all kinds of weather conditions (120 degrees spacing)
• Spinner anemometer(s) aligned with the centre line • Completed within 2 to 5 hours
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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Installation of iSpin Advanced in the nacelle
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• Installation is independent of all other equipment in the wind turbine except for power in the spinner for iSpin Basic and power in the nacelle for iSpin Advanced / iSpin Advanced Plus.
Collector Ring
Fuse box Transformer
21 January 2016 | ROMO Wind Introducing the spinner anemometer iSpin
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q This webinar will be available at www.windpowerengineering.com & email
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