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How to get the power generation D-curves(reactive capability curves)?

asked 2019-09-03 07:31:21 -0500

LLL gravatar image

I already build the SMIB to the power generation. My generator is connected to the step up transformer and then connect to the SMIB. I already set the Sbase, Pmax, Pmin, Qmax, Qmin. By changing Pgen, I can get different Q gen value. However, the result is not good enough, because

  1. when I already set the Pgen to Pmax, there is still some Qgen which is positive (Pmax = Sbase). For my understand, when Pgen = Pmax = Sbase, it means the generator can't produce any reactive power.

  2. I can't only get the half D-curves. I try to change the power factor, but I can't find how to change it.

Is it possible to get the full D-curves from GUI? Thank you very much.

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answered 2019-09-03 09:50:42 -0500

jconto gravatar image

Check the post "How to create a P-Q curve of the solar farm".

Many electric codes required that at Pmax, the unit be able to deliver +/- 0.95 p.f., meaning Q is not zero at Pmax. The model would reflect that condition. The GUI menus do not have a D-Curves function.

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I try to follow the answer from "How to create a P-Q curve of the solar farm", but I fail to plot the D-curves. Can I ask, to plot the D-Curves, I need to do the Power Flow or Dynamic analysis? Is there any material about how to plot D-Curves? Thank you very much.

LLL gravatar imageLLL ( 2019-09-04 06:33:55 -0500 )edit

There is no "user-defined" plotting in PSSe, only from embedded engines like dynamic simulation and PV or QV engines. Grab the vectors P & Q data and use Excel to plot the D-curve.

jconto gravatar imagejconto ( 2019-09-04 10:53:46 -0500 )edit

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Asked: 2019-09-03 07:31:21 -0500

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Last updated: Sep 03 '19