About Semi-direct drive wind turbine generator set
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About Semi-direct drive wind turbine generator set video introduction
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6 FAQs about [Semi-direct drive wind turbine generator set]
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 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.
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.
How does an indirect drive wind turbine work?
As the name suggests, indirect drive wind turbines transfer the mechanical energy to the generator through a series of gears instead of a direct rotor-to-generator drive. With the aid of gears, this drive mechanism provides faster speeds at the generator end, enabling the use of relatively smaller generators.
What is direct drive permanent magnet synchronous wind turbine?
With the continuous progress of power electronic technology and computer control technology, large-scale wind turbine can use the technology of direct driven permanent magnet wind turbines. Direct drive permanent magnet synchronous wind turbine is characterized by low speed and high torque requirements , , .
Will direct drive wind turbines become the dominant technology?
However, other experts indicated that the direct drive technology will eventually become the dominant technology. 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.