Bus capacitor bank configuration for a regenerative drive
US10246294B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2013 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | Jan 12, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B9/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A regenerative elevator drive device, a method for buffering energy of a regenerative elevator drive device, and an elevator system are disclosed. The regenerative elevator drive device may include an inverter having a plurality of power components and a converter having a plurality of power components. The regenerative drive may further include a direct current (DC) link bridging the inverter and the converter, the DC link including a first capacitor bridging the inverter and the converter and a second capacitor in parallel with the first capacitor. The regenerative elevator drive device may be a multi-level regenerative drive device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.