Ultracap-based solutions for ride-through of synchronous machine drives
US10374543B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2015 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Nov 5, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P9/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A synchronous machine system comprising a synchronous motor including a stator, stator winding, rotor, and field winding; an AC power supply circuit structured to transmit current to or from the stator winding of the synchronous motor at a controlled frequency and transmit current to or from a power source at a controlled frequency; a DC exciter unit structured to receive power from a power source, convert the received power to DC power at a desired voltage, and supply the converted power across a DC bus to the field winding of the synchronous motor; and an energy storage circuit coupled to the DC bus of the DC exciter unit having at least one ultracapacitor, and structured to receive power from a power source, to charge the ultracapacitor, and to provide power to the field winding of the synchronous motor following a power failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.