Lagerwey’s next generation of direct ... - wind-turbine.com

2.0 MW

Lagerwey’s next generation of direct drive

Durability

Durability begins with a quality product. Lagerwey's newestgeneration of direct drive turbines is ready for the futureand is challenging the old concepts in many aspects.Lagerwey’s long experience and innovative mind regardingdirect drive technology has resulted in an optimal nextgeneration turbine called the L82. Reducing the amount ofcomponents and design simplicity are essential drivers inmaking durable quality.

Technology

The turbine has a permanent magnet generator withexcellent efficiency in partial and full load. Together with afull power converter we are able to deliver a clean, gridfriendly power during worst case circumstances.

Due to the variable speed principle, the turbine is the bestchoice when conditions get rough. An advanced electricalpitch system reduces the loads and guarantees a maximumenergy capture. The only moving part with a high loadcycle is the main bearing where Lagerwey deliberatelyengineered a comfortable safety margin regarding wearand loads. The automatic lubrication system is closelymonitored and is very accessible for maintenance.

The L82 has an hollow main shaft for direct access to thehub. This makes the design light together with high stiffnessto withstand the loads. All service can be done comfortablyfrom the inner side of the turbine.

The generator is closed from outside influences and has anefficient passive cooling system that makes her withstandthe most severe environments (dust, coastal operation etc.).

Transportation and installation cost have become mayorcosts in the multi megawatt turbine class. Our concept withready to fit assembly modules enables low installation costand requires minimal crane capacity. The turbine can beerected with a 500 ton mobile crane.

The L82 energy capture is very high, especially therewhere it matters, in partial load. In partial load the L82outperforms the existing drive train concepts by far.

Design margins and low installation and maintenance costmake the turbine a low risk investment and combined withthe excellent energy capture allows for an attractive returnof investment. This is the turbine of choice for yourprojects.

Durability in many aspects

GeneralRated power: 2000 kWRotor diameter: 82 mHub height: 80 m Turbine concept: Direct drive gearless, variable speed, variable pitch, full power converterRotorType: 3 bladed upwind rotorDiameter: 82,5 mSwept area: 5350 m2Rotor speed: Variable 7,5 – 18,5 rpmPower regulation: Electric pitch controlBlade length: 40 m Blade material: Fibreglass / epoxyLightning protection: Blade integrated, direct contact to structure.GeneratorType: Lagerwey multi pole synchronousField excitation: Permanent MagnetMain bearing: Dual row tapered rollers

Grid inverterType: full power AC–DC–ACControl: IGBT-controlCooling: Water cooled

TowerType: Tubular steel towerHub height: 80 m

Safety systemType: 3 Independent pitch system with allocated emergency supplyDevicesBrakes: Rotor and yaw brake Locks: Rotorblade, yaw and drive trainLubrication: Automatic controlled bearings and teeth lubrication.Operational dataCut in wind speed: 2,7 m/sCut out wind speed: 25 – 28 m/sNominal power: 12,5 m/sPower factor: Controllable

Contact

Technical data L82 – 2.0 MW

Anthoniefokkerstraat 23772MR BarneveldTel: (31) 342 751935www.lagerweywind.com