Testrun and Tour through Windturbine GE 3.6MW 137m at high Windspeeds 

Just makes you realize how little energy it takes to drive a Car. Ofcourse its very simplyfied. Still Impressive how far modern electronics have come

😄 that's what these are really for.....

I thought exactly the same, lol

Don't hesitate 😄. The start button is not comparable to the ones in a car or a rocket. The start here is comparable to the following situation: you are standing with your bike up on a hill, brakes pulled.... then as you push the start button you release the Brake and start to accelerate down the hill, without any kick. (Just an analogy...) What really happens there is that the Blades can turn (pitch). Before you press start the Blades are in a feathering position, which means that there are no forces to turn the Rotor. As you push start the Blades pitch in so that there is a resulting wind-force that accelerate the Turbine without any useage of the Generator, that gets pulled just like the whole drive train. After reaching a certain rpm the inverter is kicking in, resulting in a Torque in the Generator which is directed against the direction of the acceleration of the Rotor. This "braking" energy (comparable to the recuperation in an electric vehicle) is then fed into the Grid. As I said, as you push start, the only thing that is pulling power out of the Grid is the pitch drive that turns the Blades... which then in combination with enough wind results in an acceleration of the whole Rotor and Drivetrain. 😊

Exactly 😊

This type of Turbine has a partial Power Converter in the Bottom of the Tower. Also the Powerswitch is at the bottom, so the only Thing you hear at Grid connection is a smooth screech from the Generator. Most modern Turbines have full /direct power Converters, which are allowing the Turbine to have a wide band of rotational speed and adapt to every Windspeed with a maximum efficiency.

The high pitch ringing at 3:26 is when it’s connecting to the grid, you’ll feel the tower “load down” as it increases the torque on the generator. There’s a series of IGBTs separated by a DC link that simulates a variable frequency on the rotor side of the generator but always produces at grid frequency on the stator side.

The oil cooler is located at the very rear of the nacelle and is force-ventilated.

Sag mal welchen Park kennst du eigentlich nicht? 😄👍

@@saasch_baasch ich wusste, dass GE 3.6 137 in Prenzlau gebaut wurden letztes Jahr

@@lebronaldo ..... besser informiert als die meisten aus der Branche 😄👍 wenn ich mal fragen zu einem Park habe, komme ich auf dich zurück 😉

Uh, what a difficult question. First of all, there are already various systems that monitor the condition of the plant continuously and cost-efficiently. If you use cameras, you often need very high-resolution sensors with high contrast, for example for ice detection (position best at the back of the nacelle). One problem here is the contamination of the lens (but there are solutions for this). It is just as difficult inside, because you would have to look inside the gearbox or generator. Many parameters cannot be read out with a camera sensor. There is an interesting technology called motion amplification, which amplifies the movement of subpixels and can thus detect tiny movements. But so far this is not possible on the wind turbine, because everything is really moving and you don't have a still reference. AI is successfully used, for example, for bird detection (position at the base of the tower, viewing direction above). As long as a camera does not outperform an existing system in reliability, accuracy and cost-effectiveness, it is unlikely to happen. One must always remember that energy must be produced as cheaply as possible.

@@saasch_baasch Yes I understand, that is why I aim to R&D camera solutions that more or less minimizes man-hour climbing towers. Furthermore, do you think in-nacelle sound/voice collectors (detect abnormal noises of gearbox or generators, converters) are usable?

Acoustic and acceleration sensors (CMS Systems) are widely used in Turbines. Due to their low costs and reliability, some Turbines do have dozens of them.

Yes, that is at least partly true. GE uses an electric pitch similar to Enercon (or Nordex and many others) and a gearbox drive train, as do many other manufacturers. But the biggest difference to all the others is that GE uses partial converters for the onshore turbines, while all the others have full converters.

@@saasch_baasch At the same time, both the converter and the transformer are located at the bottom, which is also part of the Enercon philosophy.

@@saasch_baasch partial converters? does this mean that generator is doubly fed induction generator? like Siemens Gamesa?

@@martsevoyyes

Usually, there is about 800 rpm in the hub. The generator bumps it up to 1800 rpm 😊

Yes, the Pitch is regulated by an electric motor, attached to a very high ratio gearbox, which then turns the whole blade via a gearing on the blade bearing. I will upload a video soon wher you can see the different types of pitch

You mean the smaller one between Gearbox and Generator? This is the feed through shaft, and the thing you see on the end of it is the slip ring. This setup serves the purpose of delivering electric or in some cases also hydraulic energy to the Hub. This shaft can be find on all Gearbox Turbines and is naturally always located at the center and along the Rotor axis.

@@saasch_baasch yes, the slow turning one. Looks like it synchronises loading profile

War sie auch😉

4:34 00:04:34

Just Google Enercon, Vestas, Nordex, Goldwind, GE Renweables etc... 😏

Da war ich auch schon drauf, aber leider jedes Mal ohne genug Wind 😑

delta 4k wird schwer. NX hat sich da etwas pingelig, du darfst nur gewisse anlagenteile zeigen. Mache momentan Wartung auf 9x Delta 3600. Ist tatsächlich vom sehen und vom hören her weniger los als auf einer Gamma.

@@ThePerle1997 da hast du recht, die ist zumindest Subjektiv ein Stück leiser. Die transparente Kupplungsverkleidung und gesamte Ergonomie und Begehungsfreundlichkeit finde ich sehr gelungen, besonders im Vergleich zur Gamma. Aber die Belüftung der D4000 mit dem kleinen Lüfter über der Kranluke ist recht dürftig. Mit der "Hochspannungsheizung" neben dem Geno ist der Aufenthalt im Maschinenhaus in den warmen Monaten fast unerträglich. Da müsste man dringend für mehr Luftbewegung sorgen 😉 LG

@@saasch_baasch so ist es! Wenigstens die 2 ebenen Sind weg- das schlimmste an der gamma 😅 Jup, finde ich schade dass die die Heizung jetzt in das Maschinenhaus gestellt haben. Aber immerhin ist das Gerät wassergekühlt 🙏

not on this Type, only with Laptop..

Since GE is not using VisuPro anymore on their Turbines, technicians need a Laptop to connect to the controller.

I work on them and we are always looking for people 😅

I don't know the exact ratio, but is must be between 100 and 120 Generator rpm per Rotor rpm. This is why they use a huge planetary gear as first and second Gearbox stage. The Torque on the Generator at rated Power is 23000 Nm, on the Rotor shaft approximately 2,8 MNm

Isn’t it 1:90-91ish? That’s the ratio from low speed to high speed shaft at least.

There is a brake disc on the high speed shaft. When you press emergency button, the brake is applied. Turbine swings like hell and that's it. Been there done that, but from the bottom.