Closed loop control of excitation parameters for switch-reluctance motors
US6864658B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2003 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Oct 3, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P25/0925
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system and method for controlling the turn-on and turn-off angles of a switch reluctance motor. A control system is provided that comprises: a turn-on controller that includes a first component for controlling a turn-on angle during low speed operations and a second component for controlling the turn-on angle during high speed operations such that transitions between low speed and high speed occur naturally; and a turn-off controller having an algorithm for controlling a turn-off angle, wherein the algorithm calculates the turn-off angle as a function of rotor speed, reference peak phase current, and a set of curve fit parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.