| 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"? |
|  giovanna diomedeKudoZ activityQuestions: 595 ( 3 open) ( 1 without valid answers) ( 64 closed without grading) Answers: 263
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The translation workplace 
