Controller and control method

To provide a controller and a control method which can estimate a temperature of the temperature estimation with good accuracy without depending on detection information of other sensors other than the temperature sensor, even if the temperature sensor is attached to a position away from the tempera...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Hino, Tatsuro, Hasegawa, Kazuya, Kumagai, Kengo
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROL OR REGULATION THEREOF CONTROLLING CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GENERATION MEASURING MEASURING QUANTITY OF HEAT MEASURING TEMPERATURE MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING TESTING THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	To provide a controller and a control method which can estimate a temperature of the temperature estimation with good accuracy without depending on detection information of other sensors other than the temperature sensor, even if the temperature sensor is attached to a position away from the temperature estimation point. A controller is provided with a sensor temperature detector that detects a sensor temperature based on an output signal of a temperature sensor attached to a temperature estimation object; and a temperature estimator that calculates an estimated temperature of the temperature estimation point, based on the current detection value of sensor temperature or the current correction value of sensor temperature, the detection value of sensor temperature before the step time or the correction value of sensor temperature before the step time, and a thermal time constant.