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Title: Method and system for controlling a permanent magnet machine during fault conditions

Abstract

Method and system for controlling a permanent magnet machine driven by an inverter is provided. The method allows for monitoring a signal indicative of a fault condition. The method further allows for generating during the fault condition a respective signal configured to maintain a field weakening current even though electrical power from an energy source is absent during said fault condition. The level of the maintained field-weakening current enables the machine to operate in a safe mode so that the inverter is protected from excess voltage.

Inventors:
; ;
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174866
Patent Number(s):
6,741,060
Application Number:
09/827,052
Assignee:
Delphi Technologies, Inc. (Troy, MI)
DOE Contract Number:  
AC36-83CH10093
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Krefta, Ronald John, Walters, James E., and Gunawan, Fani S. Method and system for controlling a permanent magnet machine during fault conditions. United States: N. p., 2004. Web.
Krefta, Ronald John, Walters, James E., & Gunawan, Fani S. Method and system for controlling a permanent magnet machine during fault conditions. United States.
Krefta, Ronald John, Walters, James E., and Gunawan, Fani S. 2004. "Method and system for controlling a permanent magnet machine during fault conditions". United States. https://www.osti.gov/servlets/purl/1174866.
@article{osti_1174866,
title = {Method and system for controlling a permanent magnet machine during fault conditions},
author = {Krefta, Ronald John and Walters, James E. and Gunawan, Fani S.},
abstractNote = {Method and system for controlling a permanent magnet machine driven by an inverter is provided. The method allows for monitoring a signal indicative of a fault condition. The method further allows for generating during the fault condition a respective signal configured to maintain a field weakening current even though electrical power from an energy source is absent during said fault condition. The level of the maintained field-weakening current enables the machine to operate in a safe mode so that the inverter is protected from excess voltage.},
doi = {},
url = {https://www.osti.gov/biblio/1174866}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {5}
}