Tuning of DMC LPCOST factors

Posted by Gary Cera on November 05, 19101 at 13:51:33:

One would think that if your LPCOST factors are calculated from a reasonably accurate source (such as a refinery LP), you could use these factors directly in your controller. Yet in the majority of the controllers I've seen the LPCOST factors have been "tuned" for better controller performance. I would be interested in hearing opposing viewpoints on whether LPCOST's should be tuned or better yet to know under what circumstances it makes sense to modify them.

Follow Ups:

• Re: Tuning of DMC LPCOST factors Dan O'Connor 18:13:50 11/09/101 (2)
  • Re: Tuning of DMC LPCOST factors Sean Goodhart 18:40:20 11/14/101 (1)
    • Re: Tuning of DMC LPCOST factors Keith Landells 06:45:46 1/11/102 (0)

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Comments:
: One would think that if your LPCOST factors are calculated from a reasonably accurate source (such as a refinery LP), you could use these factors directly in your controller. Yet in the majority of the controllers I've seen the LPCOST factors have been "tuned" for better controller performance. I would be interested in hearing opposing viewpoints on whether LPCOST's should be tuned or better yet to know under what circumstances it makes sense to modify them.


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