LOAD OPERATION CONTROL SYSTEM

A drive shaft (20) rotates a load. A drive support (50) rotates the drive shaft (20) and supports a radial load of the drive shaft (20) in a non-contact manner, by an electromagnetic force generated by the flow of a current within a predetermined current range through the drive support (50). A contr...

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Bibliographische Detailangaben
Hauptverfasser:	SAKAWAKI, Atsushi, NAKAZAWA, Yuji
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS RANGES REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	A drive shaft (20) rotates a load. A drive support (50) rotates the drive shaft (20) and supports a radial load of the drive shaft (20) in a non-contact manner, by an electromagnetic force generated by the flow of a current within a predetermined current range through the drive support (50). A control section (91a) controls an operation of the load based on a magnetic flux margin degree expressed by the difference between a total magnetic flux amount generated at the drive support (50) and a predetermined limit of the total magnetic flux amount for the drive support (50). The total magnetic flux amount includes driving magnetic flux and the supporting magnetic flux in a predetermined operation region of the load. The driving magnetic flux is generated at the drive support (50) for rotating the drive shaft (20). The supporting magnetic flux is generated at the drive support (50) for supporting a radial load of the drive shaft (20).