Synchronous machine control apparatus
US7554281B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2005 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Jan 22, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A synchronous machine control apparatus which can produce a torque level as close as possible to a desired torque command level while considering limitations on an output current of a power conversion unit. A synchronous machine control apparatus includes a torque current command generator including a torque current calculator for calculating a torque current command iδ** from a torque command τ* and a flux command φ*, a torque current limit generator for generating a maximum torque current command value iδ* max that can be generated based on a magnetizing current command iγ* and a current limit value imax, and a limiter for imposing limitations on iδ** based on iδ* max, a flux command generator for calculating the flux command φ* based on iδ* fed from the torque current command generator, a flux calculator for calculating an interlinked armature flux feedback value |Φ| based on an armature current feedback value, and a flux controller for generating the magnetizing current command iγ* such that φ* and |Φ| coincide with each other and delivering iγ* to the torque current command generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.