Invention Grant
- Patent Title: Elevator motor drive tolerant of an irregular power source
- Patent Title (中): 电梯电机驱动器容忍不规则电源
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Application No.: US12084867Application Date: 2005-11-23
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Publication No.: US08127894B2Publication Date: 2012-03-06
- Inventor: Ismail Agirman , Christopher S. Czerwinski , Jeffrey M. Izard , Edward D. Piedra , Vladimir Blasko , Frank Higgins , HanJong Kim
- Applicant: Ismail Agirman , Christopher S. Czerwinski , Jeffrey M. Izard , Edward D. Piedra , Vladimir Blasko , Frank Higgins , HanJong Kim
- Applicant Address: US CT Farmington
- Assignee: Otis Elevator Company
- Current Assignee: Otis Elevator Company
- Current Assignee Address: US CT Farmington
- Agency: Kiney & Lange, P.A.
- International Application: PCT/US2005/042833 WO 20051123
- International Announcement: WO2007/061419 WO 20070531
- Main IPC: B66B1/06
- IPC: B66B1/06
Abstract:
A hoist motor (12) for an elevator (14) is continuously driven from an irregular power supply (16). A regenerative drive (10) delivers power between the power supply (16) and the hoist motor (12). A controller (11) measures a power supply voltage in response to a detected change in the power supply voltage and controls the regenerative drive (10) to adjust a nominal motion profile of the elevator (14) in proportion with an adjustment ratio of the measured power supply voltage to a normal power supply voltage.
Public/Granted literature
- US20090301819A1 Elevator Motor Drive Tolerant of an Irregular Power Source Public/Granted day:2009-12-10
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