Systems and methods for reactive power injection based flying start of synchronous machines
US12249934B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2023 |
| Grant date | Mar 11, 2025 |
| Priority date | — |
| Expiry date | Sep 20, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2207/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cascaded controller for controlling a kinetic three-phase synchronous machine comprises a current control circuitry and an active power control circuitry operatively coupled with the current controller circuitry. The current control circuitry is configured to regulate a magnitude of inrush stator current for a stator of the kinetic three-phase synchronous machine by producing a first voltage control signal causing a flow of active power in the kinetic three-phase synchronous machine. The active power control circuitry is configured to produce a second voltage control signal to reduce the active power to zero, based on the first voltage control signal. The second voltage control signal controls a phase angle of the inrush stator current such that the stator current vector is oriented to align with a magnet axis of the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.