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How to calculate limits for governor models

asked Nov 22 '2

CynicalSuka gravatar image

How to calculate limits for governor models. for example how do i calculate Tmin and Tmax of DEGOV model given i know Pmin, Pmax, and MVA of the generator.

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answered Nov 22 '2

perolofl gravatar image

Of course the limits for DEGOV can be calculated from those data.

Tmax = Pmax/Mbase

Tmin = Pmin/Mbase

If RSORCE>0, the limits should be slighlty adjusted with the resistive losses in the generator.

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Models documentation says 0 ≤ TMAX < 1.5 and -0.05 ≤ TMIN < 0.5. How could that be. Pmax is always less than Mbase. so Tmax can be 1 at maximum

CynicalSuka gravatar imageCynicalSuka (Nov 23 '2)

The manual is misleading in this aspect. Maximum Pmech (e.g. governor parameter Tmax, Pmax or Vmax) should be set a value corresponding to Pmax in load flow. Too many examples show Tmax=1 or higher, which is wrong.

perolofl gravatar imageperolofl (Nov 23 '2)

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Asked: Nov 22 '2

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Last updated: Nov 22 '22