Switched reluctance starter/generator system and method of controlling same
US6011377A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1994 |
| Grant date | Jan 4, 2000 |
| Priority date | — |
| Expiry date | Mar 1, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P9/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric power starter/generator system for converting electrical energy from a remote dc electrical power source coupled to a dc distribution bus to mechanical energy to start a turbine engine in a start mode, and for converting mechanical energy from the turbine engine to electrical energy to power utilization equipment connected to the dc bus in a generate mode, comprises a switched reluctance machine, an inverter having a dc input/output coupled to the dc distribution bus, and at least a first and a second switch coupling each of the machine's phase windings to the dc bus, and at least a first and a second diode for cross-cupling each of said phase windings to the dc bus, and a controller coupled to the inverter for monitoring and controlling system performance during the start mode and the generate mode of system operation. The controller monitors rotor position and generates switching control signals to enable the switches for each of the phase windings at a fixed angle prior to alignment of the rotor pole with the associated stator pole, coupling the phase winding to the dc bus and allowing dc phase current to flow to energize the winding. The controller further generates…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.