Goldwind unveils new 7.8MW onshore wind turbine

Goldwind unveils new 7.8MW onshore wind turbine | Windpower Monthly

In a statement listing its specifications Goldwind said the new GWH 175-7.8MW onshore turbine has a 175-metre rotor diameter and features a medium-speed permanent magnet generation system designed for greater efficiency.

The hub height is 105 metres but this can be varied depending on the deployment site, Goldwind said.

Goldwind recently switched from its long-time PMG-based direct-drive preference to a specific semi-integrated medium-speed drivetrain solution with a PMG, as seen in its current onshore flagship models, the medium-speed GWH-191-6.7MW and its GWH-191 4MW sister model, both of which made their market debuts in 2021.

The GWH 175-7.8MW looks to be aimed at medium to high wind markets. It features digital technology systems that monitor its operations in harsh wind conditions and help mitigate operational risks.

Goldwind has one of the world’s largest wind fleets with over 100GW of installed capacity worldwide.

The GWH 175-7.8MW boasts features designed to improve its flexibility in a range of different scenarios, and can be affixed to either a steel or hybrid steel and concrete tower, Goldwind said.

The stripped-down design – which for example forgoes slip-rings in the magnet generator to reduce the risk of failure – will meanwhile help speed up deployment of the new model, according to the company, by reducing the overall volume of the turbine for transportation. The turbine will also be pre-comissioned at the manufacturing plant to reduce on-site commissioning times.

According to the company, the GWH 175-7.8MW can operate in a range of conditions and has an operational temperature range of between -30C and +40C.