Elevator drive control during power disruption
US11192752B2 · kind B2 · utility
0Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 2017 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Oct 17, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B5/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A drive control method and system for controlling an inverter during power disruptions in the operation of an elevator drive includes the steps of predetermining whether a hoist motor of the elevator drive will be operating in a motor mode, a balanced mode or a regenerative mode on commencement of the power disruption, and controlling the inverter in accordance with the predetermined operating mode after commencement of the power disruption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.