Invention Grant
- Patent Title: Method for estimating motor parameter in a load commutated inverter arrangement, and a load commutated inverter arrangement therefor
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Application No.: US14516120Application Date: 2014-10-16
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Publication No.: US09906173B2Publication Date: 2018-02-27
- Inventor: Jan Wiik , Edgar Jellum , Trond Haugen , Harald Fretheim
- Applicant: ABB Schweiz AG
- Applicant Address: CH Baden
- Assignee: ABB Schweiz AG
- Current Assignee: ABB Schweiz AG
- Current Assignee Address: CH Baden
- Agency: Whitmyer IP Group LLC
- Main IPC: H02P6/12
- IPC: H02P6/12 ; H02P25/03 ; H02P23/00
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.
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