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REpower´s latest commercial wind turbine EWEC, Athens - 28 February 2006 Christian Draheim – Head of Product-Marketing. Agenda. MM92 – the latest step of the proven Mx-series Design changes Technical data & prototypes Operational results power output sound emissions
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REpower´s latest commercial wind turbine EWEC, Athens - 28 February 2006 Christian Draheim – Head of Product-Marketing
Agenda • MM92 – the latest step of the proven Mx-series • Design changes • Technical data & prototypes • Operational results • power output • sound emissions • technical availability • yield
- the latest step of the proven Mx-series Product line Rated power [MW] 2.0 MW 1.5 MW Rotor diameter [m] Swept area [m2] 6,720 4,657 3,850 3,850 5,281 Hub heights [m] 65 – 90 61.5 – 111.5 55 - 80 59 - 100 78.5 - 100 Type class up to … DIBt 3 / IEC IIa DIBt 2 / IEC IIIa DIBt 3 / IEC Ia DIBt 3 / IEC Ia DIBt 3 / IEC IIa Two product lines, five productsand one reliable concept
Design changes • Constant design focus on efficiency and long-term reliability • Unchanged electrical system • Specific modifications of single components • Load optimisation by advanced control and adjustment systems
Design changes • Latest pitch drive & control technology • Minimising of extreme loads • New blade bearing with increased number of blade bolts • Efficient load transfer with unchanged operational safety
Rotor blade LM45.3 P • Proven blade profile • GRP design with a weight of 8t • Multi receptor system for lightning protection
Technical data & prototypes Technical data Rated Power: 2.0 MW Rotor diameter: 92.5 m Hub heights: 78.5 / 80 m, 100 m Type class: IEC II, IEC III Cut-in wind speed: 3.0 m/s Rated wind speed: 11.2 m/s Cut-out wind speed: 24.0 m/s Rotational speed: 7.8 – 15.0 min–1 (+12.5%) Tip speed: 72.7 m/s Rotor blade: LM 45.3 P • Prototypes • MM92– 80 m 09.2005, Schleswig-Holstein, Germany • MM92 – 80 m 11.2005, Schleswig-Holstein, Germany • MM92 – 100m 01.2006, Brandenburg, Germany
Operational results – Power output • 1st power curve measurement 11/05
Operational results – Sound emissions • Sound measurements 11/2005 & 01/2006 • Reduced and individual sound power curves
Test-Runs & optimising of pitch system Test-Runs, update of REguard Control & optimising of converter system Operational results - Availability • Availability excl. Test-Runs = 99,1 %
Operational results – Yield • approx. 20 % higher yield than the MM82
Outlook • Installations 2006 • Measurements • Certifications