Electrical power supply for equipment carried by a rotary support
US10090733B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2011 |
| Grant date | Oct 2, 2018 |
| Priority date | — |
| Expiry date | Sep 5, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2101/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An apparatus including a fixed part, a rotary support configured to be driven in rotation relative to the fixed part, at least one item of electrical equipment carried by the rotary support, and a power supply device configured to supply electrical energy to the electrical equipment. The power supply device includes an asynchronous machine including a stator fixed to the fixed part and a rotor carried by the rotary support, and an excitation device. The stator includes an electrical circuit including at least one switch configured to switch between an open state in which the electrical circuit is open and a closed state in which the electrical circuit is closed. The rotor includes at least one winding connected to the electrical equipment. The excitation device is configured to provide a reactive current to the electrical circuit of the stator or to the winding of the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.