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Problem In Controller Tuning

Started by prashr, Feb 22 2008 11:42 AM

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#1 prashr

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Posted 22 February 2008 - 11:42 AM

hi everyone,
i am using hysys 3.2. i am finding difficulty in using relay feedback test in controller tuning. To be specific i am not getting those strip charts of Oscillations of pv and op from which we calculate Ku (ultimate gain) and Pu (ultimate period). my control configration consists deadtime element with delay period of 3 minuts.
can anyone explian me the clear procedure @ the same?

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