Active brake unit
US8098031B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 28, 2006 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | Jun 21, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a circuit arrangement for recirculating the energy produced during the braking of electric motors into a supply system. The object of the invention is to implement the feeding of the energy that can be obtained when braking electric motors to the supply system without the use of an isolating transformer. Said object is solved by a forward branch (3), comprising a rectifier (32) connected to the supply system (1). The rectifier is guided via a first intermediate circuit (33) to a first inverter (34) that is connected to the motor (2), and a backward branch (4), comprising a second intermediate circuit (42) connected to the output of the first intermediate circuit (33), wherein a second inverter (41) is connected to the second intermediate circuit, and the second inverter in turn is connected to the supply system (1) via a mains circuit (5). Each pole of the second intermediate circuit (42) is connected via a series connection of a current-compensated throttle (61, 62) and a diode (64, 65) to the output of the first intermediate circuit (33).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.