Patent · US Active

Method for estimating motor parameter in a load commutated inverter arrangement, and a load commutated inverter arrangement therefor

US9906173B2 · kind B2 · utility

0Cited by

18References

13Claims

0Family size

Assignee

ABB Schweiz AG · CH

Inventors

Jan Wiik · Oslo, NO
Edgar Jellum · Asker, NO
Trond Haugen · Oslo, NO
Harald Fretheim · Aurskog, NO

Key dates

Filing date	Oct 16, 2014
Grant date	Feb 27, 2018
Priority date	—
Expiry date	Feb 4, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH02P25/03
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for estimating a motor parameter in a load commutated inverter arrangement, including the steps of: measuring a motor side ac-voltage; detecting commutation interval information of the measured motor side ac-voltage; estimating a motor parameter based on the detected commutation interval information; and indicating when the estimated motor parameter deviates from a monitoring parameter thereof.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.