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Initial condition suspect for GAST2A

asked 2017-02-25 21:56:41 -0500

none gravatar image

Does anyone has any idea how to resolve the initial condition suspect for GAST2A gas turbine governor model? Issue is with the state (K+5) temperature control. The temperature initialised at maximum Tc. Thanks

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answered 2018-06-14 15:01:53 -0500

jconto gravatar image

When the message during initialization for a GAST2A models says:

Model GAST2A Bus 1000 [abc 18.000] Machine "1" :
  TEMPERATURE CONTROL INITIALIZED CORRECTLY AT MAXIMUM
  STATE( 14720) MAY SHOW AS SUSPECT INITIAL CONDITION

its state (K+5) appears in the INITIAL CONDITIONS SUSPECT table as:

 14720   0.44871     -0.49574      GAST2A             K+5    1000 abc      18.000  1

This is not considered a model error, so no need to resolve it.

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Comments

+1. It is only due to the implementation of the temperature control. If you look carefully, if the exhaust temperature is lower than the limit Tc, then the integrator continuously integrates and hits the wind up limit. So there should actually be a Dstate <> 0 if no temperature limit is hit

Pasnos gravatar imagePasnos ( 2018-06-23 06:15:26 -0500 )edit
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answered 2018-06-12 09:51:17 -0500

jfconroy gravatar image

It is difficult to answer this question without seeing your input data, and replicating your issue from there. If you can send your RAW and DYR files then perhaps I or some of the other forum readers can assist you.

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Asked: 2017-02-25 21:56:41 -0500

Seen: 950 times

Last updated: Jun 14