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compensating bias term

Italian translation: termine di compensazione costante (bias)

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GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:compensating bias term
Italian translation:termine di compensazione costante (bias)
Entered by: giodiomede
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11:58 Feb 13, 2012
English to Italian translations [PRO]
Tech/Engineering - Other / chillers
English term or phrase: compensating bias term
A pure proportional controller will not always settle at its target value, but may retain a steady-state error. Specifically, the process gain biases a pure proportional controller. If the proportional band is right of setpoint, as in cooling, then the bias will be over the set point, hence the term “droop”. Adding a **compensating bias term** (e.g. setting the setpoint below the true desired value) may mitigate droop, or may be corrected by adding an integration term, which effectively computes a bias adaptively.
The integral term (when added to the proportional term) accelerates the movement of the process towards setpoint and eliminates the residual steady-state error that occurs with a proportional only controller. However, since the integral term is responding to accumulated errors from the past, it can cause the present value to overshoot the setpoint value (cross over the setpoint and then create a deviation in the other direction). The contribution from the integral term is proportional to both the magnitude of the error and the duration of the error.

Sarebbe il "termine di distorsione di compensazione"?
giodiomede
Italy
Local time: 09:17
termine di compensazione costante (bias)
Explanation:
A metà di pagina 3 di questo documento:

http://www.automazione.ingre.unimore.it/pages/corsi/material...

L'equazione è la stessa che trovi qui al paragrafo "types pf controllers"
http://en.wikipedia.org/wiki/Controller_(control_theory)

"uo represents the steady state control action (bias) necessary to maintain the variable at the steady state when there is no error"

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Note added at 2 hrs (2012-02-13 14:34:01 GMT)
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oppure semplicemente "una costante di compensazione"
Selected response from:

Laura Radaelli
Local time: 09:17
Grading comment
grazie
4 KudoZ points were awarded for this answer

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Summary of answers provided
4termine di compensazione costante (bias)Laura Radaelli


  

Answers


1 hr   confidence: Answerer confidence 4/5Answerer confidence 4/5
termine di compensazione costante (bias)


Explanation:
A metà di pagina 3 di questo documento:

http://www.automazione.ingre.unimore.it/pages/corsi/material...

L'equazione è la stessa che trovi qui al paragrafo "types pf controllers"
http://en.wikipedia.org/wiki/Controller_(control_theory)

"uo represents the steady state control action (bias) necessary to maintain the variable at the steady state when there is no error"

--------------------------------------------------
Note added at 2 hrs (2012-02-13 14:34:01 GMT)
--------------------------------------------------

oppure semplicemente "una costante di compensazione"

Laura Radaelli
Local time: 09:17
Native speaker of: Native in ItalianItalian
PRO pts in category: 12
Grading comment
grazie
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