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Intelligent load control for heated wind measurement sensors




                                         Intelligent load control for
                                     heated wind measurement sensors
                                          A. Krenn1, H. Winkelmeier1, F. Lachinger1
                                               1Energiewerkstatt,   Friedburg, Austria




Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




    Company Profile


    Wind Energy
    •  Wind Measurement
    •  Project Development

    •  Planning & Implementation

    •  Training and Education
    •  Research & Demonstration




Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




        01           Wind Energy in Austria

        02           Test Rig Schareck / Großglockner

        03           Wind Measurement Brenner




Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




       Wind Energy in Austria
       State 31.12.2011

       •    650 Wind turbines
       •    1.084 MW installed power
       •    2,39 TWh electricity generation per year
       •    3,6 % of Austrian electricity demand




Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




    Wind conditions in Austria

                                                                                        •           •

                                                                                    •
                                                                                    3


                                                                                                            ••  •7
                                                                                                                         •
                                                                                                                         •4
                                                                 V   med••5,5   -   6,0 m/s
                                                                                     ••  ••
                                                                     ••
                                                                                       •
                                                                                                    •
                                                                                                      ••
                                                                                                        ••
                                                                                                        4

                                                                                                        •
                                                                                                         •
                                                                                                            4




                                                       •                                     ••        • •• • ••
                                                                                                       ••       •    •
                                                                                                                     3



                                                                                                •
                                                           3

                                                                                            •• •         • – ••
                                                                                        •• • V med •6,5    • 7,0                      m/s
                                                                                                7


                                                                                                   •• •
                                                       ••                               • • •
                                                                                                                         • ••
                                                                                                                              4
                                                                                     •
                                                               V med 5,5 – 6,5       m/s ••
                                                                                                             5
                                                                                                                                  10
                                                                           •
                                                                       •
                                                                       3                                                          •




                                                                                            •
                                     V med 6,0 - 7,5 m/s




                                                •




Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors



      Specific wind energy production in Austria
                                Specific wind energy production in different regions of Austria
                  1200
                                       Eastern Region (106 WT)              Northern Region (14 WT)                    Pre-Alpine Region (23 WT)     Alps (13 WT)

                  1000



                   800
       [kWh/m²]




                   600
                                                                   1042




                                                                                                                                                                                 1010
                                                                                            990




                                                                                                                                 961




                                                                                                                                                         915
                                           910




                                                                                                                                          907
                                                                                                                                900
                                                                          863




                                                                                                                 861
                                                 843




                                                                                                  812




                                                                                                                                                               798
                   400
                         750




                                                                                                                             745
                                                                                      735
                                                             686




                                                                                                                                                                           665
                                                                                                                                                   660
                                                                                                           639
                                     614




                                                                                                                          602




                                                                                                                                                525
                                                       501




                                                                                                        499




                                                                                                                                                                     475
                                                                                460
                               410




                   200



                     0
                               2003                    2004                     2005                    2006                 2007               2008                 2009



Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




        01           Wind Energy in Austria

        02           Test Rig Schareck / Großglockner

        03           Wind Measurement Brenner




Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




   Test Rig Schareck




Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




      Measurement setup




                                              Producer      Type                   Operating	
  mode                         Power	
  [W]

                                              NRG           Ice	
  Free	
  3       Heated	
  cup	
  anemometer               96	
  W

                                              Vaisala       WAA252                 Heated	
  cup	
  anemometer               72	
  W

                                              Thies	
  A.   2D                     Heated	
  2D	
  Ultrasonic                310	
  W

                                              Thies	
  A.   2D	
  Compact          Heated	
  2D	
  Ultrasonic	
  compact     250	
  W

                                              Thies	
  A.   Classic                Unheated	
  cup	
  anemometer             -­‐-­‐-­‐-­‐-­‐

                                              Thies	
  A.   Classic                Wind	
  vane                              25	
  W

                                              Galltek       P63-­‐12               Combined	
  Thermo-­‐/Hygrosensor         -­‐-­‐-­‐-­‐-­‐

                                              Mobotix       M12	
  Dual	
  Night   Webcam	
  with	
  infrared	
  spotlight   -­‐-­‐-­‐-­‐-­‐


Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




      Data evaluation
   Comparison of five different scenarios rsp. icing periods:
   •  Actual meteorological icing periods based on webcam evaluations
   •  Actual instrumental icing periods based on webcam evaluations
   •  Estimated icing periods according to synoptic considerations
   •  Estimated icing periods according to comparison of heated and
      unheated anemometers
   •  Estimated icing periods according to standard algorithms of heated
      wind measurement sensors




Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




      Resulting Energy Demand




         Scenario	
     Solution	
  regarding	
  heating	
  control	
     Used	
  settings	
            Energy	
  Consumption	
  
              1	
             Standard	
  sensor	
  algorithm	
                   ≤	
  2°C	
                    100%	
  
              2	
       Comparison	
  heated/unheated	
  sensor	
         ∆vmed	
  >	
  2	
  m/s	
               29%	
  
              3	
        Relative	
  humidity	
  und	
  temperature	
      ≥	
  90%;	
  	
  ≤ 1°C	
              55%	
  

Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




      Considerations regarding heating demand
    •  Theoretically, heating of wind measurement sensors is only necessary
       during meteorological icing periods
    •  In case of external power supply units
          –  Which energy consumption do we have?
          –  How much energy is available?
          –  Which data availability do I want to achieve?
    •  Importance of an advanced load control management
    •  Possible approaches:
          –  Info from webcam, difference betw. heated and unh. sensor not available
          –  Synoptic considerations (equivalent to meteorological icing)
                 •  Overestimation of icing periods, but still ~ 50% saving of energy
          –  In future - ice detector: current obstacles (350 W heating demand, costs)
Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




        01           Wind Energy in Austria

        02           Test Rig Schareck / Großglockner

        03           Wind Measurement Brenner




Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




      Wind farm Brenner
  •  2.100 – 2.200m above sea level
  •  600 W/m2 at hub height (estimated)
  •  40 days per year icing (estimated)
  •  19 Wind turbines approved (LTW70 – 2.0 MW)



                                 Wind Farm Brenner




Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




       Measurement concept
                                                                                  LI DAR 03 - Sattelberg




                                                                             Windmessung Steinjoch - 50 m




                                                                            LIDAR 01 - Steinjoch




                                                                                      LIDAR 02 - Kreuzjoch




Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




      Wind measurement mast Steinjoch




    Energiewerkstatt offered:
                 50m Mast with heated ultrasonic anemometer
                 External power supply system; 97% data availability


Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




        External power supply system
 Power demand Ultrasonic:                      250 W (periodically)
 Power demand LIDAR:                           40 W (100 W) (continuously)

 Technical specification:

 PV generator:             4 x 180 W
 Wind generator:           2,40 m diameter / 900 W
 Fuel cell:                300 W (as backup)
 Hydrogen store:           6 bottles à 50 litres
 Battery storage:          600 Ah / c100
 Data storage:             Ammonit Meteo 32
 Dimensions:               1.10 / 2.20 / 1.80
 Operat. control:          EMS Energy
                           management system


Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




        Energy management system
  Controlling of the system
  •  Load management: Managing the
     power demand of the sensors
     according to the actual conditions
  •  Production management:
     Intelligent interplay of the
     components
  •  Thermal management: Intelligent
     provision of the required thermal
     conditions (for battery pack and fuel
     cell)
  •  Provision of a remote control
     system, which allows permanent
     control and a remote changing of
     the settings


Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




        Experience from first months
   Extreme conditions
   •  Mean wind speed: 12 m/s in 23 m height
   •  Wind gusts (10min mean): > 30 m/s
   •  Ice accretion: Up to 8 cm (all-round)




                                                                Evaluation of 1 ½ months
                                                                • Surplus of ~30%
                                                                • No demand for FC (only self
                                                                consumption)
                                                                • Data availability of ~97%

Winterwind 2012, Skellefteå/SE
Intelligent load control for heated wind measurement sensors




                                         Intelligent load control for
                                     heated wind measurement sensors



                                               Thanks for your attention!




Winterwind 2012, Skellefteå/SE

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Intelligent load control for heated wind sensors

  • 1. Intelligent load control for heated wind measurement sensors Intelligent load control for heated wind measurement sensors A. Krenn1, H. Winkelmeier1, F. Lachinger1 1Energiewerkstatt, Friedburg, Austria Winterwind 2012, Skellefteå/SE
  • 2. Intelligent load control for heated wind measurement sensors Company Profile Wind Energy •  Wind Measurement •  Project Development •  Planning & Implementation •  Training and Education •  Research & Demonstration Winterwind 2012, Skellefteå/SE
  • 3. Intelligent load control for heated wind measurement sensors 01 Wind Energy in Austria 02 Test Rig Schareck / Großglockner 03 Wind Measurement Brenner Winterwind 2012, Skellefteå/SE
  • 4. Intelligent load control for heated wind measurement sensors Wind Energy in Austria State 31.12.2011 •  650 Wind turbines •  1.084 MW installed power •  2,39 TWh electricity generation per year •  3,6 % of Austrian electricity demand Winterwind 2012, Skellefteå/SE
  • 5. Intelligent load control for heated wind measurement sensors Wind conditions in Austria • • • 3 •• •7 • •4 V med••5,5 - 6,0 m/s •• •• •• • • •• •• 4 • • 4 • •• • •• • •• •• • • 3 • 3 •• • • – •• •• • V med •6,5 • 7,0 m/s 7 •• • •• • • • • •• 4 • V med 5,5 – 6,5 m/s •• 5 10 • • 3 • • V med 6,0 - 7,5 m/s • Winterwind 2012, Skellefteå/SE
  • 6. Intelligent load control for heated wind measurement sensors Specific wind energy production in Austria Specific wind energy production in different regions of Austria 1200 Eastern Region (106 WT) Northern Region (14 WT) Pre-Alpine Region (23 WT) Alps (13 WT) 1000 800 [kWh/m²] 600 1042 1010 990 961 915 910 907 900 863 861 843 812 798 400 750 745 735 686 665 660 639 614 602 525 501 499 475 460 410 200 0 2003 2004 2005 2006 2007 2008 2009 Winterwind 2012, Skellefteå/SE
  • 7. Intelligent load control for heated wind measurement sensors 01 Wind Energy in Austria 02 Test Rig Schareck / Großglockner 03 Wind Measurement Brenner Winterwind 2012, Skellefteå/SE
  • 8. Intelligent load control for heated wind measurement sensors Test Rig Schareck Winterwind 2012, Skellefteå/SE
  • 9. Intelligent load control for heated wind measurement sensors Measurement setup Producer Type Operating  mode Power  [W] NRG Ice  Free  3 Heated  cup  anemometer 96  W Vaisala WAA252 Heated  cup  anemometer 72  W Thies  A. 2D Heated  2D  Ultrasonic 310  W Thies  A. 2D  Compact Heated  2D  Ultrasonic  compact 250  W Thies  A. Classic Unheated  cup  anemometer -­‐-­‐-­‐-­‐-­‐ Thies  A. Classic Wind  vane 25  W Galltek P63-­‐12 Combined  Thermo-­‐/Hygrosensor -­‐-­‐-­‐-­‐-­‐ Mobotix M12  Dual  Night Webcam  with  infrared  spotlight -­‐-­‐-­‐-­‐-­‐ Winterwind 2012, Skellefteå/SE
  • 10. Intelligent load control for heated wind measurement sensors Data evaluation Comparison of five different scenarios rsp. icing periods: •  Actual meteorological icing periods based on webcam evaluations •  Actual instrumental icing periods based on webcam evaluations •  Estimated icing periods according to synoptic considerations •  Estimated icing periods according to comparison of heated and unheated anemometers •  Estimated icing periods according to standard algorithms of heated wind measurement sensors Winterwind 2012, Skellefteå/SE
  • 11. Intelligent load control for heated wind measurement sensors Winterwind 2012, Skellefteå/SE
  • 12. Intelligent load control for heated wind measurement sensors Winterwind 2012, Skellefteå/SE
  • 13. Intelligent load control for heated wind measurement sensors Resulting Energy Demand Scenario   Solution  regarding  heating  control   Used  settings   Energy  Consumption   1   Standard  sensor  algorithm   ≤  2°C   100%   2   Comparison  heated/unheated  sensor   ∆vmed  >  2  m/s   29%   3   Relative  humidity  und  temperature   ≥  90%;    ≤ 1°C   55%   Winterwind 2012, Skellefteå/SE
  • 14. Intelligent load control for heated wind measurement sensors Considerations regarding heating demand •  Theoretically, heating of wind measurement sensors is only necessary during meteorological icing periods •  In case of external power supply units –  Which energy consumption do we have? –  How much energy is available? –  Which data availability do I want to achieve? •  Importance of an advanced load control management •  Possible approaches: –  Info from webcam, difference betw. heated and unh. sensor not available –  Synoptic considerations (equivalent to meteorological icing) •  Overestimation of icing periods, but still ~ 50% saving of energy –  In future - ice detector: current obstacles (350 W heating demand, costs) Winterwind 2012, Skellefteå/SE
  • 15. Intelligent load control for heated wind measurement sensors 01 Wind Energy in Austria 02 Test Rig Schareck / Großglockner 03 Wind Measurement Brenner Winterwind 2012, Skellefteå/SE
  • 16. Intelligent load control for heated wind measurement sensors Wind farm Brenner •  2.100 – 2.200m above sea level •  600 W/m2 at hub height (estimated) •  40 days per year icing (estimated) •  19 Wind turbines approved (LTW70 – 2.0 MW) Wind Farm Brenner Winterwind 2012, Skellefteå/SE
  • 17. Intelligent load control for heated wind measurement sensors Measurement concept LI DAR 03 - Sattelberg Windmessung Steinjoch - 50 m LIDAR 01 - Steinjoch LIDAR 02 - Kreuzjoch Winterwind 2012, Skellefteå/SE
  • 18. Intelligent load control for heated wind measurement sensors Wind measurement mast Steinjoch Energiewerkstatt offered: 50m Mast with heated ultrasonic anemometer External power supply system; 97% data availability Winterwind 2012, Skellefteå/SE
  • 19. Intelligent load control for heated wind measurement sensors External power supply system Power demand Ultrasonic: 250 W (periodically) Power demand LIDAR: 40 W (100 W) (continuously) Technical specification: PV generator: 4 x 180 W Wind generator: 2,40 m diameter / 900 W Fuel cell: 300 W (as backup) Hydrogen store: 6 bottles à 50 litres Battery storage: 600 Ah / c100 Data storage: Ammonit Meteo 32 Dimensions: 1.10 / 2.20 / 1.80 Operat. control: EMS Energy management system Winterwind 2012, Skellefteå/SE
  • 20. Intelligent load control for heated wind measurement sensors Energy management system Controlling of the system •  Load management: Managing the power demand of the sensors according to the actual conditions •  Production management: Intelligent interplay of the components •  Thermal management: Intelligent provision of the required thermal conditions (for battery pack and fuel cell) •  Provision of a remote control system, which allows permanent control and a remote changing of the settings Winterwind 2012, Skellefteå/SE
  • 21. Intelligent load control for heated wind measurement sensors Experience from first months Extreme conditions •  Mean wind speed: 12 m/s in 23 m height •  Wind gusts (10min mean): > 30 m/s •  Ice accretion: Up to 8 cm (all-round) Evaluation of 1 ½ months • Surplus of ~30% • No demand for FC (only self consumption) • Data availability of ~97% Winterwind 2012, Skellefteå/SE
  • 22. Intelligent load control for heated wind measurement sensors Intelligent load control for heated wind measurement sensors Thanks for your attention! Winterwind 2012, Skellefteå/SE