How to modify the filter to match the power output of the wind turbine with the wind speed?

hello,

I have the wind turbine power results on the left and the wind speed on the right, both varying over a 24-hour period. From three different scenarios, it's clear that the power output doesn't align with the wind speed. Could this be due to the filter I uploaded? If so, how can I modify it?

thank you in advance

Answer 1

[William Rose]

@jana nassereddine,

The horizontal axis labels and values are partly cut off, or absent, on the three images you uploaded which contain two plots each. It appears that the horizontal axis labels for the left side plots are "Load (kW)". If that is correct, then the plots are not power versus time. Do the right side plots (with black background) show wind speed versus time? Please plot power versus time and wind speed versus time, with visible labels and units and values, for both axes. Then we will know what is being compared.

The system diagram shows a sampling rate of 1e-6, but the right side plots appear to be sampled much more slowly. Please figure out why this is so, and why the sampling rate appears different for the right and left side plots.

I don't think the lowpass filter is the cause of the mismatch between wind speed and power output, because the power waveform in the plots does not appear to be a lowpassed version of the speed waveform. I suspect the difference is due to the inner workings of the wind turbine power system box, or the difference is because you are not plotting what you mean to be plotting.

[jana nassereddine]

Here’s the figure again, now with titles on the x and y axes. Regarding the sample time, I’m unsure what the issue is. The sample time for the microgrid model that includes this wind turbine is set to 1e-6, while the sample time for the MPC is 0.01. However, this shouldn't have any impact, right?

PS: I included the load figure to illustrate the x-axis for the wind power figure.

[jana nassereddine]

I adjusted the filter parameters for the sample time and constant time to match those of the AC power wind output. Now, for the same wind speed, you can see the updated wind power in kW. I also incorporated the AC power from the wind for you to see.

[jana nassereddine]

I adjusted the sample time from zero to 1e-6, but there hasn't been much change.

[jana nassereddine]