Method for adjusting parameters of an electric motor and variable speed drive using such a method
US7202629B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2006 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Mar 29, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention concerns a method for adjusting motor parameters in a variable speed drive intended to control an electric induction motor M. The method includes a step for determining differences ΔID and ΔIQ between motor flux current and motor torque current references and measurements, a step for calculating a correction value ΔRR of the rotor resistance and a correction value ΔLR of the rotor inductance from the integral terms of the differences ΔID and ΔIQ, a step for adjusting values of parameters of the motor model based on ΔLR and ΔRR, a step for generating control voltages UD and UQ to be applied to the motor M using said adjusted motor parameter values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.