In-situ fault detection apparatus and method for an encased energy storing device
Abstract
An apparatus and method for detecting a breach in an electrically insulating surface of an electrically conductive power system enclosure within which a number of series connected energy storing devices are disposed. The energy storing devices disposed in the enclosure are connected to a series power connection. A detector is coupled to the series connection and detects a change of state in a test signal derived from the series connected energy storing devices. The detector detects a breach in the insulating layer of the enclosure by detecting a state change in the test signal from a nominal state to a non-nominal state. A voltage detector detects a state change of the test signals from a nominal state, represented by a voltage of a selected end energy storing device, to a non-nominal state, represented by a voltage that substantially exceeds the voltage of the selected opposing end energy storing device. Alternatively, the detector may comprise a signal generator that produces the test signal as a time-varying or modulated test signal and injects the test signal into the series connection. The detector detects the state change of the time-varying or modulated test signal from a nominal state, represented by a signal substantiallymore »
- Inventors:
-
- Stillwater, MN
- Montreal, CA
- Vadnais Heights, MN
- Saint-Luc, CA
- Issue Date:
- Research Org.:
- United States Advanced Battery Consortium, Dearborn, MI (US)
- OSTI Identifier:
- 873145
- Patent Number(s):
- 6100702
- Assignee:
- 3M Innovative Properties Company (Saint Paul, MN); Hydro-Quebec Corporation (Montreal)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
- DOE Contract Number:
- FC02-91CE50336
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- in-situ; fault; detection; apparatus; method; encased; energy; storing; device; detecting; breach; electrically; insulating; surface; conductive; power; enclosure; series; connected; devices; disposed; connection; detector; coupled; detects; change; signal; derived; layer; nominal; non-nominal; voltage; signals; represented; selected; substantially; exceeds; opposing; alternatively; comprise; generator; produces; time-varying; modulated; injects; equivalent; representative; absence; storing device; detection apparatus; series connected; electrically insulating; electrically conductive; signal generator; insulating layer; fault detection; detector detects; energy storing; series connection; signal derived; substantially equivalent; storing devices; connected energy; insulating surface; power connection; /324/
Citation Formats
Hagen, Ronald A, Comte, Christophe, Knudson, Orlin B, Rosenthal, Brian, and Rouillard, Jean. In-situ fault detection apparatus and method for an encased energy storing device. United States: N. p., 2000.
Web.
Hagen, Ronald A, Comte, Christophe, Knudson, Orlin B, Rosenthal, Brian, & Rouillard, Jean. In-situ fault detection apparatus and method for an encased energy storing device. United States.
Hagen, Ronald A, Comte, Christophe, Knudson, Orlin B, Rosenthal, Brian, and Rouillard, Jean. Sat .
"In-situ fault detection apparatus and method for an encased energy storing device". United States. https://www.osti.gov/servlets/purl/873145.
@article{osti_873145,
title = {In-situ fault detection apparatus and method for an encased energy storing device},
author = {Hagen, Ronald A and Comte, Christophe and Knudson, Orlin B and Rosenthal, Brian and Rouillard, Jean},
abstractNote = {An apparatus and method for detecting a breach in an electrically insulating surface of an electrically conductive power system enclosure within which a number of series connected energy storing devices are disposed. The energy storing devices disposed in the enclosure are connected to a series power connection. A detector is coupled to the series connection and detects a change of state in a test signal derived from the series connected energy storing devices. The detector detects a breach in the insulating layer of the enclosure by detecting a state change in the test signal from a nominal state to a non-nominal state. A voltage detector detects a state change of the test signals from a nominal state, represented by a voltage of a selected end energy storing device, to a non-nominal state, represented by a voltage that substantially exceeds the voltage of the selected opposing end energy storing device. Alternatively, the detector may comprise a signal generator that produces the test signal as a time-varying or modulated test signal and injects the test signal into the series connection. The detector detects the state change of the time-varying or modulated test signal from a nominal state, represented by a signal substantially equivalent to the test signal, to a non-nominal state, representative by an absence of the test signal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 2000},
month = {Sat Jan 01 00:00:00 EST 2000}
}