Price of wind power direct drive generator

What is a direct drive wind turbine?

Because the direct-drive wind turbines do not have a gearbox, mechanical noise is reduced as well as fewer rotating components. Moreover, this type of wind turbine has a single main bearing for the rotor assembly and generator, which additionally reduces the number of moving parts, as well as the maintenance and repair costs.

What is a permanent magnet direct drive turbine generator?

Permanent magnet direct-drive (PMDD) turbine generators avoid rotor winding losses and mechanical energy losses associated with gearboxes and couplings. The full power converter provides the flexibility to optimize rotor rotational speed for maximum mechanical energy transformation. Compliance with demanding grid requirements.

What is a directwind wind turbine?

The DIRECTWIND wind turbines are fitted with EWT’s state-of-the-art direct drive technology. This means that the rotor drives the synchronous generator directly, without the need for a gearbox.

What is a variable speed direct drive wind turbine?

This type of wind turbine is known as the variable speed direct drive wind turbine and was introduced to eliminate gearbox failure and transmission losses. The rotor is directly connected to the generator, implying that the generator speed is equivalent to the rotor speed.

Are direct drive wind turbines better than a gearbox wind turbine?

They come up with three arguments. First, the costs for the offshore support structure for direct drive wind turbines is lower than for gearbox wind turbines due to overall lower weight. Second, direct drive has more potential for further improvement.

What is a direct drive generator?

Due to the relatively low rotational generator speed, the generator requires a larger number of magnetic poles to achieve a sufficiently high output frequency. The direct drive category contains two types; the permanent magnet direct drive and the electrically excited direct drive.