2021
DOI: 10.3390/s21113739
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On-Line Remaining Useful Life Estimation of Power Connectors Focused on Predictive Maintenance

Abstract: Connections are critical elements in power systems, exhibiting higher failure probability. Power connectors are considered secondary simple devices in power systems despite their key role, since a failure in one such element can lead to major issues. Thus, it is of vital interest to develop predictive maintenance approaches to minimize these issues. This paper proposes an on-line method to determine the remaining useful life (RUL) of power connectors. It is based on a simple and accurate model of the degradati… Show more

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Cited by 9 publications
(3 citation statements)
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References 35 publications
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“…Noise cannot be accurately managed, however, RMSE can be improved for various mobile window lengths. Next, the author suggests using the Auto Regressive Integrated Moving Average (ARIMA) model to estimate the power connector system's remaining useful life [46]. When unexpected changes occur, performance may fall, but prediction accuracy is increased.…”
Section: Literature Reviewmentioning
confidence: 99%
“…Noise cannot be accurately managed, however, RMSE can be improved for various mobile window lengths. Next, the author suggests using the Auto Regressive Integrated Moving Average (ARIMA) model to estimate the power connector system's remaining useful life [46]. When unexpected changes occur, performance may fall, but prediction accuracy is increased.…”
Section: Literature Reviewmentioning
confidence: 99%
“…Current is injected with two excitation electrodes/contacts while two sensing instances are used to read current distribution modifications, forming a so-called four-point probe. Application examples include the inspection of electronic cabling [14] and connectors [15], monitoring cracks under fatigue loading [16][17][18][19], the estimation of geometrical dimensions as thickness [20] and weld nugget [21], and the mapping of local conductivity [22] and mechanical stress [23]. Provided an available access to the part conductive surface, CPD methods are a simple, reliable, and inexpensive NDT option.…”
Section: Introductionmentioning
confidence: 99%
“…Moreover, fault prognosis can be achieved by monitoring if estimated parameter values are above or below an accepted tolerance range [20]. Furthermore, an online state of health estimation of electrical devices is useful to estimate the RUL with high accuracy [21]. In this case, the RUL is continuously updated based on the actual state of the device.…”
Section: Introductionmentioning
confidence: 99%