REGENERATIVE DRIVE

A regenerative elevator drive (2) is arranged to receive power from, and supply regenerative energy to, an external power supply (4, 10) and is arranged to direct excess regenerative energy through a dynamic braking resistor (20). An inverter (16) is arranged to receive a DC voltage, derived from th...

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Bibliographische Detailangaben
Hauptverfasser:	Glessner, Stephan, The, Andrew, Schoenauer, Uwe, Horbrugger, Herbert
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 REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY ELEVATORS ESCALATORS OR MOVING WALKWAYS GENERATION HAULING HOISTING LIFTING PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	A regenerative elevator drive (2) is arranged to receive power from, and supply regenerative energy to, an external power supply (4, 10) and is arranged to direct excess regenerative energy through a dynamic braking resistor (20). An inverter (16) is arranged to receive a DC voltage, derived from the external power supply (4, 10), and to convert the DC voltage to an AC voltage for output to an external motor (22). A DC link capacitor (14) is connected across the input of the inverter (16). A circuit breaker unit (54) is arranged to switch between a first state which provides a connection between the inverter (16) and the external power supply (4, 10), and a second state which disconnects the inverter (16) from the external power supply (4,10).