Pancake Generator Wind Turbine?

Oct 08, 2019 Last reply: 6 years ago 8 Replies

Saw some wind turbines that had very short but quite large diameter generator housings.



What is the difference?


No gearbox

Multipole design

Possibly the number of poles that can be fitted in the generator? I suspect that this means they are ?direct drive? and don?t have/need a gearbox.

Tim

There's one at Glyndebourne that's direct drive - losses are less than through a gearbox, of course. No idea what the drawbacks are, but possibly limited output. Video of the construction about half-way down the page; for the impatient ones, skip to 2 min. It shows the housing, with men inside it, before the front is fitted.

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This type?

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They look ugly compared to ones with a longer nacelle.

From my google image search for "wind turbine", 13/300 involved smoke and flames ...

Also no gearbox = much quieter.

.

Thanks - was able to Google "direct drive wind turbine" and found this:

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That's impressive - and so is the wind that it can withstand. 59m/s is about

130mph.

It presumably is the inverse of the direct drive motors that are flat. We had some when I worked for Racal, they were going to be used on some automated battle ready spy device to be parachuted in behind lines or somesuch. Brian

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