radar innovation and the development of wind energy... thales air systems july 5, 2011 radar...

www.thalesgroup.com

Thales Air Systems July 5, 2011

Radar Innovation & the development of Wind Energy

Conference “Energie éolienne et innovation”MEDDTL, Paris, 5 July 2011


2 /2 / Content

� Who we are

� Wind Energy plans

� Impacts on radar

� Thales and Wind Energy

� Modelling and impact studies

� Overview of Thales solutions

� Wind Farm Filter

� Dedicated Gap-Filler

� Way forward


3 /3 / Who we are

Thales Group

� 68.000 employees, €13.1 billion in revenues

� Aerospace & Transports (40%)

� Defence & Security (60%)

N°1:

� ATM Systems & Navaids

� Civil Radars & Battlefield Radars

� (In Europe): Naval & Ground Based Surveillance Rada rs

285 ATM centres in 85 countries, 640 Air Surveillance Radars in 85 countries

10,000 Navaids and landing systems in 180 countries

320 Air Defence Radars in 26 countries, 350 Naval Defence Radars in 27 countries

GM 400

HERAKLES

STAR 2000

RSM 970

HA 100

Ground Alerter 10

SMART S

GS 1000

Arabel

Coast Watcher 100


4 /4 / World Wind energy plans

10th March 2010 WWEA report:

� “The trend continued that wind capacity doubles every three years”

� “ A total wind capacity of 200 GW will be exceeded within the year 2010”

� “ WWEA increases its predictions and sees a global capacity of 1900 GW as possible by the year 2020”

Multiplied by 10 in the next 10 years !

Source: WWEA 2010


5 /5 / Impacts on Radars

Masking(MTO & DEF)

Windfarm area

False Plots(ATC & DEF)

Angular errors and ghosts

(ATC & DEF)

Sidelobe effects(All)


6 /6 / Thales and Wind Energy

Position:

� Thales is committed at developing solutions to allo w:

� Wind Energy to achieve their objectives

� Radar Operators to maintain their operational missions

� Thales encourages a tri-partite team working

Activities:

� Develop and validate models, conduct impact studies

� Define, evaluate, develop and deploy mitigation sol utions


7 /7 / Modelling and impact studies: why ?

Modelling

� Necessary to:

� generalize models and make them durable from consecutive samples

� predict unobserved situations

� Needs to:

� understand physical phenomena

� Interpret radar data

Impact Studies

� Required to:

� quantify effects of a future situation

� new windfarms around a given radar

� new radar (or new radar location) amidst existing windfarms

� provide evidence for application process


8 /8 / Modelling and impact studies: how ?

Detailed propagation and RCS “in-situ”

Advanced 4D diffraction


9 /9 / Modelling and impact studies: examples

STAR 2000 at Manston

493 493 windturbineswindturbinesSTAR 2000

Kentish Flats q=30

30 Nm

London Array I q=175

Source windfarm data: 4C Offshore June 2011

Greater Gabbardq=140

Greater Gabbardq=140

Thanetq=100

Gunfleet Sandsq=48


10 /10 / Modelling and impact studies: an example


� Expected impacts on Thanet

PPF at middle bearingPPF at middle bearing PPF at 200ft ASLPPF at 200ft ASL


11 /11 / Modelling and impact studies: an example


� Expected impacts on Thanet

Blade RCS Blade RCS inin--situsitu

Blade Max. Blade Max. PoDPoD

+ dynamic parameters -> nb. of false plots/time, false tracks/time


12 /12 / Overview of Thales solutions

�

�

�

�

False plots/ False plots/

readingsreadings

Mitigated IssuesMitigated Issues

�

�

�

�

MaskingMasking

Example Example

of of

mitigationmitigation

GapGap--Filler Filler

(existing radar)(existing radar)THALESTHALES

SolutionsSolutions

Next Generation Next Generation

RadarsRadars

GapGap--Filler Filler

(dedicated)(dedicated)

Processing Processing

upgradesupgrades

WindWind FFarm arm FilterFilter (WFF)(WFF)

Background landscape image from Google EarthBackground landscape image from Google Earth

MSPSR

BS (3D) BS (3D) OptimisationOptimisation

Solutions for all situations, at short, medium and long term


13 /13 / WFF: what is it ?

A filter to:

� remove false plots generated by windturbine blade f lashes

� maintain detections of aircraft

It allows to:

� initiate true tracks in windfarm areas

� avoid initiation of false tracks

� avoid deviation of true tracks (by false plots)

Applied only in windfarm zones

� zones can be updated when new windfarms appear

The WFF allows to remove NAI


14 /14 / WFF: how it works

Thales Patent Application WO/2010/069886 “Method For Filtering The Radar Echoes Produced By Wind Turbines”

Front-End

Signal Processing

Detection

Plot Extraction

Tracking

Spectrum Analyzer

ClassifierWind Farm FilterWind Farm Filter

in WF zones only


15 /15 / WFF: performance

Typical performance: 70-80% rejection of WT false plots, 80-90% maintenance of true plots, ~100% maintenance of true tracks

“Wind Turbine” plots“Aircraft” plots

STAR 2000InvernessHigland & Island Airport Ltd.

Beinn TharsuinnScottishPower Renewables

Piper PA-28Highland Aviation

Plots Tracks

Latest TrialsScotland, 8-10 June 2011


16 /16 / Gap-Filler: what is it ?

An additional radar to provide a replacement coverage for

an existing radar facing windfarm impacts

� Two cases:

� an existing radar

� e.g. and airport radar to replace a part of an en-route radar

� a dedicated small radar


17 /17 / Way forward

Solutions

� exist thanks to a team working spirit� Wind Energy Developer,

� Radar Operator/ Safety Regulator,

� Radar Industry

� available to-day, already deployed:� Tools for impact studies/ STAR 2000 Gap-Filler/ Wind Farm Filter

� ready for development: Dedicated Gap-Fillers� Counter mask (Low altitude coverage)

� Counter windfarm clutter (Zenithal coverage)

� Applicable to:

� all types of radars (weather, civil, military, coastal)

� on-shore and off-shore applications

Thales proposes solutions at short, medium and long term

radar innovation and the development of wind energy... thales air systems july 5, 2011 radar...

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