WWD-3 3 MW wind turbine - Ecosource Energy

1 1(27). Document WWD-1003. Prep. by EKU. Checked by GB . Ver WWD-3 DETAILED technical specification . Appr. by WWD-3 . 3 MW wind turbine Detailed technical specification Detailed technical - specification WWD-3 ver 2(27). Document WWD-1003. Prep. by EKU. Checked by GB . Ver WWD-3 DETAILED technical specification . Appr. by technical specification Contents 1. General information ..4. 2. General information of turbine electric 3. Power curve ..7. 4. Annual production of WWD-3 /100 ..8. 5. Noise level (IEC 61400-11)..8. 6. Detailed technical Tower ..9. Rotor ..9. Main bearing, planetary gear and generator..9. Brake system ..10. Glassfiber Yaw system ..10. Foundation ..11. Grid connection.

2 11. Transformer technical Switchgear, Electrical Characteristics ..13. Frequency Reactive power control ..15. turbine control, remote monitoring and Presenting the production data on the Alarms ..18. Self-diagnosis of the wind turbine ..19. Condition Lightning protection ..19. 7. Earthing system ..20. 8. Anti-icing of blades ..20. Aviation Service Lift inside the Tower ..20. High voltage switchgear ..21. 9. Type Approvals ..21. 10. Transportation 11. Access roads and 12. General Reservations, Notes and Disclaimers ..24. 13. General Due to continuous development and product upgrade, WinWinD reserves the right to change or alter . these specifications at any time without notice.

3 WinWinD is a registered trademark of Winwind Oy. This document contains general information about WWD-3 wind turbines. The exact scope of delivery shall be defined in the contract. Detailed technical - specification WWD-3 ver 3(27). Document WWD-1003. Prep. by EKU. Checked by GB . Ver WWD-3 DETAILED technical specification . Appr. by Date Revision Author Remark April 2004 1/2004 Eku Document created Sep 2004 4/2004 EKu An update Apr 2005 1/2005 EKu An update May 2005 2/2005 EKu Annual production added Oct 2005 3/2005 EKu An update Oct 2005 4/2005 EKu An update 5/2005 Iri Electrics update GB General corrections/additions EKu Power production corrected EKu Power curve update EKu 90 m power curve added EKu General corrections/additions Detailed technical - specification WWD-3 ver 4(27).

4 Document WWD-1003. Prep. by EKU. Checked by GB . Ver WWD-3 DETAILED technical specification . Appr. by 1. General information WinWinD has developed an innovative wind turbine for the market with its WWD concept. WinWinD's basic values include customer satisfaction and the operational reliability of the products, as well as the win-win cooperation achieved between the clients and WinWinD. On the basis of thorough technical and economic research work the WWD. concept, which allows electricity to be produced with a new innovative inte- grated power unit, was created. The basis for design was efficiency, reliabil- ity and ease of maintenance which allows the WWD concept to offer the most cost-effective production throughout its total life, combined with the lowest operating costs.

5 WWD-3 is pitch regulated upwind wind turbine with active yaw and three- blade rotor. The turbine consist of three main parts Rotor 3 blades and hub, electrical pitch control Integrated power unit roller bearing, planetary gear and variable speed generator with permanent magnets Nacelle frequency converter, transformer and accessories The rotor hub is connected to the gearbox casing using a play-free double- row tapered roller bearing. The bearing transfers the rotor loads directly to the main casing, keeping the drive train free from deformation and rotor loads. The planetary gear increases the rotating speed modestly and trans- fers the torque to the low speed permanent magnet generator.

6 All connec- tion flanges are round and concentric, resulting in clearly defined borders. This "black-box" design philosophy eases assembly and results in a well- defined load distribution. The frequency converter transfers the full genera- tor power. As a result the machine can use also low wind speeds with opti- mum low rotational speed, and there is no need for slip rings as with a dou- ble-fed generator solution. Detailed technical - specification WWD-3 ver 5(27). Document WWD-1003. Prep. by EKU. Checked by GB . Ver WWD-3 DETAILED technical specification . Appr. by General Type 3 blades, up-wind Power control Pitch, variable speed Rated power 3000 kW (grid side). Rotor diameter 90 and 100 m Cut-in wind speed 4 m/s Rated wind speed 12,5 m/s (100 m).

7 13 m/s (90 m). Cut-out wind speed 20 m/s (100 m). 25 m/s (90 m). Design maximum 59,5 m/s (hub height). Rotor speed 5-16 rpm Frequency converter Located in nacelle Transformer Transformer located in nacelle Hub heights 80 -100 m Detailed technical - specification WWD-3 ver 6(27). Document WWD-1003. Prep. by EKU. Checked by GB . Ver WWD-3 DETAILED technical specification . Appr. by 2. General information of turbine electric systems The wwd3 -90m turbine has a water cooled permanent magnet synchro- nous generator. The frequency converter is also water cooled and installed in the nacelle. The frequency converter consists of two separate converter units. One con- verter unit is designed for 1,5MW and has 1500A IGBT-inverter units on grid and generator side.

8 This 2x1,5MW converter system is redundant, it is possible to run only one 1,5MW converter if another converter is out of or- der. On the grid side there is an LC-filter for reducing harmonic currents. The main transformer is also installed in the nacelle. It is an oil-cooled fully encapsuled version, reinforced internally to withstand vibration. Additionally it stands on vibration dampers. Consequently all the cable connections are made flexible. Cooling is by natural convection plus a thermostat-controlled additional fan. The main transformer has five voltage tap settings ( 2x2,5%). to make a fine adjustment according to the local grid. Generator Synchronous machine Cooling Water jacket cooling around stator, Air cooling with air/water heat exchanger Rated gen.

9 Voltage 660 V. Rated gen. frequency 49,2 Hz Frequency converter IGBT -Bridges on both generator and grid side Filter generator side dU/dt-Filter and common-mode filter Filter grid side LC-Filter Transformer Oil-cooled, in nacelle Detailed technical - specification WWD-3 ver 7(27). Document WWD-1003. Prep. by EKU. Checked by GB . Ver WWD-3 DETAILED technical specification . Appr. by 3. Power curve The guaranteed power curve with rotor diameter of 90 and 100 m. Air density kg/m3. Transformer losses are not deducted. On the right side the thrust-coefficient (for wake calculations). v WWD-3 /90 WWD-3 /100. m/s kW kW. 3 0 0. 4 80 79. 5 220 254. 6 389 458. 7 627 740. 8 944 1117. 9 1351 1595.

10 10 1858 2103. 11 2410 2505. 12 2873 2870. 13 3032 3032. 14 3032 3032. 15 3030 3030. 16 3030 3030. 17 3030 3030. 18 3030 3030. 19 3030 3030. 20 3030 3030. 21 3030. 22 3030. 23 3030. 24 3030. 25 3030. Detailed technical - specification WWD-3 ver 8(27). Document WWD-1003. Prep. by EKU. Checked by GB . Ver WWD-3 DETAILED technical specification . Appr. by 4. Annual production of WWD-3 /100. The calculated power production with rotor diameter 100 m. Air density kg/m3, Weibull-C-factor = 2. Gross production ( park losses, transformer losses, etc are not de- ducted). m/s MWh/a 6,0 6360. 6,5 7562. 7,0 8732. 7,5 9841. 5. Noise level (IEC 61400-11). The noise level values shall be guaranteed according the sales agreement.