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Method and apparatus for automated tuning of pid controllers
Method and apparatus for automated tuning of pid controllers
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机译:自动调节PID控制器的方法和装置
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摘要
A method of tuning a PID-regulator (22), or variants thereof, of a plant (10), in which the plant (10) in a feedback system is brought into controlled self-oscillation whereupon the amplitudes and the frequency of the self-oscillation are determined and the controller (22) is tuned in dependence of the values determined for the amplitude and the frequency of the self-oscillation, wherein self-oscillation is induced by connecting in the feedback system a quantiser function (30). Quantiser functions are staircase functions y=Q(x) where an output signal yk, k epsilon N, assumes a predetermined discrete value out of a finite set of discrete values for each of plurality of input signal values X epsilon R within a predetermined interval of input signal values. That is, each discrete output signal value is associated with a plurality of input signal values within a specific one interval.
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