How to asses wind farm performance,
I have these data, P, Q cosphi, voltage, wind speed, winding temperatur, P stator... ect
many thanks
Hi Saida,
When you say wind farm performance, do you imply electrical performance on the network side, mechanical performance on turbine side, or both ?
-SAnjay
What you mean exactly be asses wind farm performance? you can for example calculate the efficiency of the wind farm by calculating the input mechanical power and the output electrical power. etc...
the evaluation of wind farm depend by the turbine type used in this farm wind .speed range exsist in this site .and alot of parameters of wind turbine design
Saida,
I have to agree with replies by previous three responders. First, the wind farm performance has to be defined. Then, we can discuss about how to use your data to fit that criteria.
Let me know if you have any questions.
Jeremy
Wind farms are composed on a set of wind turbines and the latter have nominal (or rated) power (MW or kW) specified by the manufacturer.
Now, depending on the wind speed in a specific site, the actual power generated could be equal to or less than the nominal power of the turbine.
You need to look at the wind turbine performance curve. The x-axis of this curve has the wind speed in meters/sec and the y-axis has the generated power (as % of the full rated power). If the wind speed is less than the rated speed, then the generated power is less than the rated power. This a point on the curve called "cut in speed" at which there is power generated and there is the "cut out speed" where the wind turbine has to be stopped for safety reasons. Hence, during a 24 hours period, the wind speed will vary and thus the generated power.
In summary, your wind turbine performance is measured by the actual power generated compared to the rated power. For example, if your actual power generated is 3 MW and the nominal rated power is 4 MW, then the wind turbine performance is 75%
Hope this helps!
from Google map you can see the wind stress or wind speed value but unfortunately this site been discontinued
Yehia answer to your question is lucid enough. Site characteristics are very important, which including the analysis of the available wind speed, wind energy and possible probabilities . The latter will assist in your wind turbine selections which may vary based on the wind farm structure.
Yehla gives a very good answer above, but I would add the "wind to wire" factor. It is what power the wind turbine delivers ti the consumer that is critical to assess. Thus, the output power from the turbine, while important, is missing the losses incurred in delivering the power to the customer.
For wind potential assessment first you need to have hourly data and then find cut in speed and also calculate average speed and determine whether the site is feasible for wind potential site or not.
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