Method of adjusting parameters of a synchronous motor and variable speed drive using such a method
US7646164B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2007 |
| Grant date | Jan 12, 2010 |
| Priority date | — |
| Expiry date | Jun 25, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method of adjusting motor parameters in a variable speed drive intended for controlling a synchronous electric motor with permanent magnets M. The method comprises a step of determining the deviations ΔID and ΔIQ between references and measurements of the flux current and motor torque current, a step of calculating a correction value ΔRS of the stator resistance, a correction value ΔL of the inductance and a correction value ΔKE of the flux constant of the motor, on the basis of the integral terms of the deviations ΔID and ΔIQ, a step of adjusting the values of the parameters of the motor model on the basis of ΔRS, ΔL and ΔKE, a step of formulating the control voltages UD and UQ to be applied to the motor M by using the said adjusted values of the motor parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.