Operation control method and operation control apparatus for variable speed generator-motor
US8115445B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2009 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Aug 14, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2207/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An excitation device supplies a three-phase AC excitation current to a variable speed generator-motor, and controls the variable speed generator-motor based on a three-phase AC excitation current command value obtained by vector-synthesizing, based on a slip phase from an exciting phase detector, a torque direction excitation current command value from a power adjustment computing device, and a magnetic flux direction excitation current command value from a voltage adjustment computing device by an excitation current adjustment computing device. The variable speed generator-motor includes a power fluctuation suppression circuit that causes the torque direction excitation current command value fixed to a value before switching to follow a torque direction excitation current command target value calculated from an effective power by a predetermined conversion circuit, filter circuit, and limiter circuit during a synchronous operation in an operation control method for operating to switch a variable speed operation method and a synchronous operation method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.