Controller for a wound rotor slip ring induction machine
US6741059B2 · kind B2 · utility
23Cited by
11References
26Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 22, 2002 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Jul 22, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P23/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The direct torque control (DTC) principle is used to control the torque of a wound ring rotor slip induction machine, also known as a doubly fed or cascade machine, by utilizing a solid state inverter on the rotor side. In addition, the DTC principle is used to control the power factor at the stator terminals of the doubly fed machine to a desired level and also to perform the task of synchronization of stator voltage to the grid voltage. An integrated controller is used to implement these three functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.