Wind power generator in the world's largest scheduled for operation

A generator of 2.4MW output that standing Heavy Industries, wind power generator, which started trial operation this time, as shown in Figure 1. In response to the rotation of the wind turbine, so far was send power to the generator gears

• However, given the flow of large output in the future, when she does continue to use the mechanism using the gear, gear is huge, the number also increases, it becomes more complex, maintenance is difficult. Part with a built-in generator and gear (Nasser) also becomes larger than the traditional ones. I would have a significant impact on construction costs.

Operation begins

tester Figure 1 Mitsubishi Heavy Industries has built in Yokohama Plant. Left in the nacelle with a built-in hydraulic drive train and generator, right windmill. Source: National Institute of New Energy and Industrial Technology Development Organization

Was adopted to "hydraulic drive train" the generator was started this trial MHI . The hydraulic drive train, hydraulic pump is operated windmill turned the shaft, oil flows in the direction of the generator.

Pump sticks to the generator to rotate the shaft of the generator to activate the pump in hydraulic pressure.

Oils obtained by rotating the generator moves in the direction of the pump of the wind turbine through another route. I convey power oil while circulating between the generator and the axis of the wind turbine.

If it is too strong or when the wind is weak, it is possible to adjust the force to convey the generator by a method such as escape temporary portion and store them or weaken the power of the pump to push the oil, is called "accumulator", oil.

Leveraging technology is a venture company in the UK,
which was acquired in 2010 of "Artemis company", in combination also hydraulic control technology that Mitsubishi Heavy Industries, Ltd. owns, Mitsubishi Heavy Industries was completed the hydraulic drive train. This project has received support National Institute of New Energy and Industrial Technology

Development Organization (NEDO).

When you use a hydraulic drive train, and on the need to use a number of gear is lost, inverter also becomes unnecessary, trouble that caused the gear is eliminated. Cost compression and miniaturization of the nacelle body also possible, has attracted the expected technology and facing the large output in the future.

Mitsubishi Heavy Industries plans to begin trial operations on the ground wind generator equipped with a hydraulic drive train in the UK in the fall of 2013.

In addition, it plans to start the operation of floating wind turbines output 7MW equipped with a hydraulic drive train off Fukushima in 2014.