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Automatic tuning of simple regulators with specifications on phase and amplitude margins. (English) Zbl 0543.93039
Summary: The paper describes procedures for automatic tuning of regulators of the PID type to specifications on phase and amplitude margins. The key idea is a simple method for estimating the critical gain and the critical frequency. The procedure will automatically generate the appropriate test signal. The method is not sensitive to modelling errors and disturbances. It may be used for automatic tuning of simple regulators as well as initialization of more complicated adaptive regulators.

MSC:
93C40 Adaptive control/observation systems
34C05 Topological structure of integral curves, singular points, limit cycles of ordinary differential equations
93B30 System identification
93B35 Sensitivity (robustness)
93B40 Computational methods in systems theory (MSC2010)
93C10 Nonlinear systems in control theory
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