development of wind sensing lidar “diabrezza” at ... for web/smi s presentasjonar/a s… · 1...

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Development of wind sensing lidar“DIABREZZA”

at Mitsubishi Electric Corporation

2015.4.16Shumpei Kameyama

Mitsubishi Electric Corporation

2015.4.16 NORCOWE science meets industry @ Stavanger

©2015 Mitsubishi Electric Corporation

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Self introduction~ Lidar development in Mitsubishi ~

• Wind sensing coherent Doppler lidar (1998~)

• CO2 sensing differential absorption lidar (2005~)

• 3D imaging lidar (2007~)

S. Kameyama et al., Optics Letters, 34, 1513, 2009.

S. Kameyama et al., Applied Optics, 50, 1560, 2011.

S. Kameyama et al., Applied Optics. 50, 2055, 2011.

M. Imaki et al., Optics Letters, 37, 2688, 2012.

S. Kameyama et al., Proc. of CLEO Pacific Rim, 2009. (Invited)

S. Kameyama et al., Applied Optics., 46, 1953, 2007.

S. Kameyama et al., IEEE Trans. on Geosci. Remote Sens., 47, 3560, 2009.

S. Kameyama et al., Applied Optics, 49, 5169, 2010.

T. Ando et al., Proc. of Mater. Res. Soc. Symp., 1076-K04-05, 2008.

S. Kameyama et al., Proc. of SPIE, 85260E-1, 2012.

S. Kameyama et al., Proc. of CLRC, 2013. (Invited)

S. Kameyama et al., Proc. of SPIE, 7382, 2009. (invited)

S. Kameyama et al., Proc. of SPIE, 8192, 2011. (invited)

M. Imaki et al., Proc. of SPIE, 8905, 2013. (Invited)

N. Kotake et al., Proc. of SPIE, 8565, 2012.

H. Tsuji et al., Proc. of SPIE, 8565, 2012.

H. Ochimizu et al., Proc. of SPIE, 9080, 2014.


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History of Mitsubishi wind lidar

20102000 20152005

(1) Wind sensing using eye-safe (1.5 mm) wavelength region

Long range lidar

(2) Instrumentation of compact short range lidar

Portable & short range lidar

(3) Product release of the short range pulsed lidar

(4) Ultra-long-range (>30 km) wind sensing

(5) New short range lidarLidar for offshore wind resource assessment Nacelle mounted lidar

Mitsubishi lidar “DIABREZZA”


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DIABREZZA, compact


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Outline of the product

� Measures the vertical wind profile (horizontal wind speed, direction, and the vertical wind speed) of the altitude between 40~250m

� Selectable range resolution (20m/25m/30m)

� Environmentally resistant for the use under severe outdoor conditions

� Can be installed onto a buoy for offshore applications

� High performance (measurement accuracy, data availability) using the new function; “Adaptive Parameter Tuning”


6※The above specifications is subject to change without notice

Specification sheetNo. Items Specifications Note

1 Measurement Range 40m～250m altitude Varies according to the atmospheric condition

2 Scanning Pattern Digital switching

3 Scanning Direction 0°(North) / 90°/ 180°/ 270°/ Vertical 5 directions

4 Range Resolution Selectable from 20m/ 25m/ 30m Each resolution mode can be divided into 1/2 to1/5 using the Range Overlap Function

5 Number of Range 40 ranges

6 Output/Display Data・horizontal wind speed/direction, verticalwind speed of each range・10min average data

7 Measurable Wind Speed Range 0～60m/s

8 Data Update Rate 0.25 ～ 5 seconds Variable

9 Wind Speed/Direction Accuracy Error 0.1m/s 10 min average

10 Laser Wavelength 1.55µm single frequency Class 1M standard (JIS C 6802)

11 Environmental Conditions -20℃～+40℃、0～100%RH

12 Environmental Resistance IP67, salt air resistance

13 Main unit Measurement/ weight W550xH550xD550mm / 50kg Excludes projections

DC+24V

Power Consumption：approx. 180W at temp. -20～0℃approx. 65W at temp. 0～20℃approx. 100W at temp. 20～40℃

14 Power specification

For customers who require AC Power（AC100～240V±10%、50/60Hz±5% ）,we provide an optional AC-DC converterbox.

©2015 Mitsubishi Electric Corporation7

New function: Adaptive parameter tuning

Concept & User’s benefit・Self-recognition of atmospheric condition by the analysis on the signal-to-noise ratio of the received signal.

・Automatic optimization of instrumental parameterswhich fits best to the user’s needs. Patents were filed by Mitsubishi Electric Corp.

0

5

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15

20

0 50 100 150 200 250 300

SN

R [

dB

]

Range [m]

Normal atmospheric condition

Severe condition(for example, low aerosol density)

Effect of parameter tuning

Data available even in severe atmospheric condition

0

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0 50 100 150 200 250 300

SN

R [

dB

]

Range [m]

Example 1Ensures available databy tuning measurement interval(for example, from 1s to 10s)

Recognitionof atmospheric condition& parameter

tuning

0

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0 50 100 150 200 250 300

SN

R [

dB

]

Range [m]

Example 2Ensures available databy tuning laser beam focus(for example, from 300m to 150m)

Schematic of range dependence of signal to noise ratio (SNR)

Detection threshold

Detection threshold

Detection threshold

©2015 Mitsubishi Electric Corporation-8-

Measurement campaign at European test site

Measurement campaign at ECN (Netherlands) using the prototype modelPeriod: 2013.10.30~2014.1.7

Office Field testsite

Mast 4

Entrance

Office

Field testsiteOffice

Alkmaar

Amsterdam

Mast（100m）

Lidar

Referenceanemometer

©2015 Mitsubishi Electric Corporation-9-

Verification result at ECN test site

Wind speed Wind direction

- Wind speed：a=0.986、R2=0.990 , Wind direction：a=1.002、R2=0.998 �� Satisfy the acceptance criteria of NORSEWInD

Approved by ECN


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DIABREZZA, nacelle mounted

Photo; provided by Advanced Industrial Science and Technology


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Optical Antenna Unit Lidar Unit

Nacelle mounted lidar


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SpecificationsNo.No.No.No. ItemsItemsItemsItems SpecificationsSpecificationsSpecificationsSpecifications NoteNoteNoteNote

1111 Measurement RangeMeasurement RangeMeasurement RangeMeasurement Range Horizontal distance 50m～250m Varies according to the aerosol condition

2222 Scanning PatternScanning PatternScanning PatternScanning Pattern Digital switching (9 directions)

3333 Scanning Alignment RangeScanning Alignment RangeScanning Alignment RangeScanning Alignment Range Horizontal： -15°、0°、+15°(3 directions)Vertical： -10°、0°、+10°(3 directions)

Straight forward is written as 0°

Total of 9 directions

4444 Range ResolutionRange ResolutionRange ResolutionRange Resolution Selectable from 25m/30m/50m Each resolution mode can be divided into ½ ~ 1/5 with the range overlap function

5555 Number of RangeNumber of RangeNumber of RangeNumber of Range 20 ranges Option: 40 ranges

6666 Output/Display DataOutput/Display DataOutput/Display DataOutput/Display Data Wind speed/direction data for each range

7777 Measurable Wind Speed RangeMeasurable Wind Speed RangeMeasurable Wind Speed RangeMeasurable Wind Speed Range -40～＋20m/s “-” Represents incoming wind

“+” Represents escaping wind

8888 Data Update RateData Update RateData Update RateData Update Rate 3.2 seconds

9999 Wind Speed Accuracy ErrorWind Speed Accuracy ErrorWind Speed Accuracy ErrorWind Speed Accuracy Error 0.1m/s 10 min average

10101010 Laser WavelengthLaser WavelengthLaser WavelengthLaser Wavelength 1.55μm single frequency (eyesafe wavelength) Class1M standard (JIS C 6802)

11111111 Environmental ConditionsEnvironmental ConditionsEnvironmental ConditionsEnvironmental Conditions -20℃～+40℃、0～100%RH

12121212 Environmental ResistanceEnvironmental ResistanceEnvironmental ResistanceEnvironmental Resistance IP65, survival wind speed： > 70m/s

13131313 Measurement/WeightMeasurement/WeightMeasurement/WeightMeasurement/Weight Lidar unit:W400mm×D500mm×H650mm、50kgOptical Antenna Unit:W400mm×D500mm×H400mm、 40kg

14141414 Power InputPower InputPower InputPower Input AC100～240V±10%、50/60Hz±5%

Power Consumption of Lidar unit： 300VA

15151515 ComplianceComplianceComplianceCompliance CE mark, RoHS


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R&D for wind turbine control in AIST

Photos and figure; provided by AIST

AIST: Advanced Industrial Science and Technology (Japan)


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DIBREZZA, long range

Photo; provided by Hokkaido University.


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System configuration

Post amplifier (1st and 2nd)

Transmitted

Received

Telescope

Block diagramLD power supply

Optical antenna unit

Telescope

Received signal

Chiller

CirculatorPolarization controller signal

Signal seed pulse

Received light

LD driver current

1st post amplifier(EYDF)

1.48µm pump light

Polarization monitor light

Pump LD unit

0.94µm pump light

Signal lightSignal light

Received light

PBS λ/42nd post amplifier(Er,Yb:glass planar waveguide)

Water（Supply）

Water（Return）

Signal processorunit

Optical Transmitter / Receiver

unit

Pump unit for 1st post amplifier

Same as compact lidar


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0

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0 5 10 15 20 25Range [km]

Det

ecta

bili

ty [

dB]

-20

-15

-10

-5

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Vel

ocit

y [m

/s]

DetectabilityVelocity

0

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10 12 14 16 18 20 22Range [km]

Det

ecta

bilit

y [d

B]

-20

-15

-10

-5

0

5

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15

20

Vel

ocit

y [m

/s]


0

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10 15 20 25 30 35Range [km]

Det

ecta

bili

ty [

dB]

-20

-15

-10

-5

0

5

10

15

20

Vel

ocity

[m

/s]


・Resolution：300m, N：16000（～25km）・Resolution：300m, N：16000（10～35km）

・Resolution：150m, N：4000（10～22km）

Range dependence of detectability and LOS wind velocity

Detection line

Detection line Detection line

・・・・> 30 km（Resolution: 300m, N: 16000）

・> 20km(Resolution: 150m, N: 4000)

Ultra-long range wind sensing demonstration (1)

Measurable range

N: Accumulation number


Horizontal scan displayRange resolution : 150m, Display range : 30km (radius)

LOS wind velocity Signal to noise ratio (SNR)

Vertical scan display,Range resolution : 75m, Display range : 15km (radius)

Example of measurement result with scanning

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Ultra-long range wind sensing demonstration (2)

Data was acquired in the joint researchof Electronic Navigation Research Institute& Mitsubishi Electric Corporation


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ConclusionsMitsubishi Electric Corporation has 3 types of wind lidar “DIABREZZA” for wind energy application

1. Compact lidarfor wind resource assessment

2. Nacelle mounted lidarfor turbine control

and power performance testing

3. Long range lidarfor wide area wind

resource assessment

Data was acquired in the joint researchof Electronic Navigation Research Institute& Mitsubishi Electric Corporation

Lower photo; provided by Advanced Industrial Science and Technology


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development of wind sensing lidar “diabrezza” at ... for web/smi s presentasjonar/a s… · 1...

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