ESTIMATION APPARATUS FOR CONTROL SYSTEM AND METHOD THEREFOR

The frequency characteristic of a controller is acquired. The gain characteristic and phase characteristic of a controlled system are acquired. The open-loop transfer characteristic of the control system and the variation range of the open-loop transfer characteristic are computed from a variation r...

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Bibliographische Detailangaben
1. Verfasser:	SEKI TATSURU
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING FUNCTIONAL ELEMENTS OF SUCH SYSTEMS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING
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Beschreibung
Zusammenfassung:	The frequency characteristic of a controller is acquired. The gain characteristic and phase characteristic of a controlled system are acquired. The open-loop transfer characteristic of the control system and the variation range of the open-loop transfer characteristic are computed from a variation range of the frequency characteristic of the controlled system and the frequency characteristic of the controller, and the variation range of the frequency characteristic of the controlled system is a region where a variation range of the gain characteristic and a variation range of the phase characteristic overlap in a complex coordinate system. The stability of the control system is estimated from the open-loop transfer characteristic and the variation range of the open-loop transfer characteristic.