Gallery: Vestas assembles four-rotor concept

DENMARK: Vestas this week unveiled its 900kW four-rotor wind turbine concept being assembled at a test site in Denmark.

by Staff 22 April 2016

  • The concept turbine's flexible arms are installed on a blue mounting frame

    The concept turbine's flexible arms are installed on a blue mounting frame

  • Each arm of the test turbine has a footbridge from the central technician platform to nacelle

    Each arm of the test turbine has a footbridge from the central technician platform to nacelle

  • On site: one level for two turbines, with arms already connected

    On site: one level for two turbines, with arms already connected

  • Four refurbished V29-225kW turbines will power the prototype

    Four refurbished V29-225kW turbines will power the prototype

  • A nacelle is lifted on to one of the arms ahead of being placed on the tower

    A nacelle is lifted on to one of the arms ahead of being placed on the tower

  • The first twin-rotor unit is mounted atop two conical bottom sections at a height of 29 metres

    The first twin-rotor unit is mounted atop two conical bottom sections at a height of 29 metres

  • The tower spacer between the two layers

    The tower spacer between the two layers

  • The second unit is mounted at 59.5 metres

    The second unit is mounted at 59.5 metres

  • Final tip height will reach 74 metres

    Final tip height will reach 74 metres

  • The completed concept turbine

    The completed concept turbine

of

The prototype is being assembled near Roskilde, eastern Denmark, this week.

“uåX˜äŠÊ˜·³Ç's technical expert Eize de Vries visited the factory in Nakskov, southern Denmark, and discussed the potential of the concept with Vestas engineers.

The turbine incorporates four refurbished pitch-controlled V29-225kW turbines with unchanged 29-metre rotor diameter.

It features two nacelle operational levels with a cylindrical tower section in between and 30.5-metre height interspacing between the levels. The structure's tip height reaches 74 metres.

The nacelles are mounted separately on left and right side tubular-steel arms. These arms in turn are flexibly attached to a turnable central chassis.