2016.6.3 Japan Norway Energy Science Weekinjapan.no/arctic2016-day2/files/2016/04/... · short range lidar First product Long range lidar(>30km) New compact lidar Lidarfor offshore

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Development of wind lidarfor the meteorological observations

2016.6.3Nobuki Kotake, Shumpei Kameyama

Mitsubishi Electric Corporation

2016.6.3 Japan Norway Energy Science Week

©2015 Mitsubishi Electric Corporation2

Contents

1. Introduction

1.1 LIDAR Developments in Mitsubishi

1.2 What’s wind sensing lidar ?

1.3 Application of wind sensing lidar

2. History of wind sensing LIDAR

3. Introduction of development


1.1. LIDAR Developments in Mitsubishi

• Wind sensing LIDAR (1998~)

• CO2 sensing 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)M. Imaki et al., Proc. of DEWEK,173,2015. N. Kotake et al., Proc. of DEWEK,174,2015.

S. Kameyama et al., Proc. of SPIE, 7382, 2009. (invited)S. Kameyama et al., Proc. of SPIE, 8192, 2011. (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


1.2 What’s wind sensing lidar ?

Optical transceiver/ Receiver

c: Speed of light

Backscattering light

Optical Mixer

fd : Doppler frequencyf0 : Transmitting frequencyfr : Received frequency

fd = 2Vf0/c

fr = f0 + fd

Lidar has the possibility that it is used in even Antarctic (very low aerosol density region)

Signal Processor

Wind (Movement of the Aerosols)

Optical Antenna

Transmitting light

Wind sensing lidar radiates pulse‐laser into the air, and receives back‐scattered light from aerosols, then calculates wind speed as Doppler shifts.Range information are also obtained from round trip time .

Wind sensing lidar radiates pulse‐laser into the air, and receives back‐scattered light from aerosols.Then calculates wind speed as Doppler shifts. Range information are also obtained from round trip time .

©2015 Mitsubishi Electric Corporation5Wind resource assessment Turbine control

1.3 Application of wind sensing lidar

©2015 Mitsubishi Electric Corporation

2 History of wind sensing LIDAR

1930

Technology of laser Application

1960

1970

1980

1990

2000

2010

2015

Search light

Ruby (0.7μm)

Argon (0.5μm)

CO2 (10μm)

Nd: YAG (1μm)

Tm: YAG (2μm)

Er, Yb: Glass (1.5μm)

EDFA (1.5μm)

Er: YAG (1.6μm)

Air flow meter

Measurement of Wake vortex

Detection of air turbulence (Airborne)

Prediction of rocket orbit

Meteorological measurement

Wind sensing for airport

Er, Yb: Glass(Waveguide) (1.5μm)

Wind resource assessment

Upper Atmosphere measurement

TAS(True aire speed)sensor (Airborne)

Terrestrial environment (satellite)

Laser source(1960)Air flow measurement(1965)

Wind sensing Lidar(1970)

Practical phase(2002)

The Concept of Lidar(1930)

Wind resource assessment(2012)

Year

LD laser (later half of the year 1980）

Eye-safe wavelength laser(1990）

Feasibility Study

Practical


20102000 20152005

Prototype

Compact & short range lidar

Firstproduct

Long range lidar (>30km)

New compact lidarLidar for offshore wind resource assessment

Mitsubishi lidar“DIABREZZATM”

Two directionality on development

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

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

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

N.Kotake et al., Proc. of EWEA ,PO146,2015.

More intelligentMore intelligent

2. History of Mitsubishi Electric’swind sensing LIDAR


Outline of product Measures the vertical wind profile (horizontal wind

speed, direction, and the vertical wind speed) of the altitude up to 250m

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

High data sampling rate ( < 0.5s @ highest)

Can be installed in a floating system for offshore applications (IP67 water proof)

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

3. Introduction of development

©2015 Mitsubishi Electric Corporation‐9‐

First measurement campaign at European test site (2013)

Measurement campaign at ECN (Netherlands): period: 2013.10.30 ‐ 2014.1.7

Mast（100m）

Lidar

Referenceanemometer

Wind speed Wind direction

Measurement campaign records (2013~)8 (in Europe), 13 (in Japan), including 4 offshore campaigns

M. Imaki et al., Proc. of DEWEK,173,2015.

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(Photo & Data: provided by Energy research Centre of the Netherlands)

©2015 Mitsubishi Electric Corporation‐10‐

Recent measurement campaign

Photo & Data; Provided by Eurus EnergyHoldings Corporation

Measurement campaign at the field in Hokkaido (Japan) was successfully completed


Long range LIDAR~ Lidar for next generation wind resource assessment ~

Outline of product Long range wind sensing

with the distance of > 8km

Range resolution: selectable

Hemispherical measurement using

horizontal & vertical scanning

Photo; provided by Hokkaido UniversityThe range resolution of the lidar in the photois selectable (30m, 60m, 90m).


Resolution: 1.2 degree (angle) 100m (range)

Measurement time : 1 min. Measurement area : 16km diam.

Signal intensity Wind velocitySchematic of measurement

Photograph of the long range LIDAR (previous type)(provided by Institute of Low Temperature Science of Hokkaido university)

Laser beam

PPI scanning

(Data: provided by Institute of Low Temperature Scienceof Hokkaido university)

Long range LIDAR~ Lidar for next generation wind resource assessment ~


System configuration of long range LIDAR

Block diagram LD power supply

Optical antenna unit

Telescope

Reception signal

Chiller

CirculatorPolarization controller signal

Signal seed pulse

Received light

LD driver current

1st post amplifier(EYDF)

1.48m pump light

Polarization monitor light

Pump LD unit

0.94m pump light

Signal lightSignal light

Received light

PBS λ/42nd post amplifier(Er,Yb:glass

planar waveguide)

Water（Supply）

Water（Return）

Signal processorunit

Optical Transceiver / Receiver

unit

Pump unit for 1st post amplifier



0

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[m/s

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DetectabilityVelocity

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10 12 14 16 18 20 22Range [km]

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[m/s

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10 15 20 25 30 35Range [km]

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[m/s

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DetectabilityVelocity

・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)

Long range wind sensing demonstration

Measurable range

N: Accumulation number



Horizontal scan displayRange resolution : 150m,

Vertical scan display,Range resolution : 75m

Wind velocity map measured with scanning

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Capability of long range wind sensing

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

30km15km


ConclusionsMitsubishi Electric Corporation has 2 types of wind lidar “DIABREZZATM” for wind energy application

Compact lidarfor wind resource assessment

Long range lidarfor wide area windresource assessment

Data was acquired in the joint researchof Electronic Navigation Research Institute& Mitsubishi Electric CorporationThe result was obtained at the ECN test site


Thank you for your attention!!

Documents

2016.6.3 Japan Norway Energy Science Weekinjapan.no/arctic2016-day2/files/2016/04/... · short range lidar First product Long range lidar(>30km) New compact lidar Lidarfor offshore