Rectifier and system for controlling the speed of an electric motor
US7737647B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2005 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | Oct 15, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P27/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention concerns a reversible current rectifier, for connection to part of a polyphase network and to a continuous bus comprising a plurality of rectifier cells each rectifier cell including a rectifying device and a on-way electronic switch connected in anti-parallel with the rectifier device, the rectifying devices of different cells being arranged so as to form one rectifier. Each rectifier cell comprises means for controlling the electronic switch of the cell arranged to control the latter in closure after detecting a conduction of the rectifying device of the cell so as to enable current to be returned to the network. The control means are arranged to receive a signal external to the cell, for controlling the opening of the electronic switch, derived from another rectifier cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.