Management of power from multiple sources in an elevator power system
US8590672B2 · kind B2 · utility
8Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2008 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Aug 20, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B50/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Power is managed in an elevator system including an elevator hoist motor (12), a primary power supply (20), and an electrical energy storage (EES) system (32). A power demand of the elevator hoist motor is determined, and a state-of-charge (SOC) of the EES system is determined. Power exchanged between the hoist motor, the primary power supply, and the EES system is controlled based on the power demand of the hoist motor and the SOC of the EES system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.