Detection and Analysis of Partial Discharges under PWM Voltage Excitation

Yang, Ming; Phung, B.T.

doi:10.1109/catcon52335.2021.9670492

Cited by 1 publication

(2 citation statements)

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“…[62] proposed a software approach to complement the hardware filtering, which applies the stochastic characteristics of PD occurrence in relation to the interference. The authors of this paper also have worked on this problem and further improved the stochastic method by using cross-correlation to align the traces of switching automatically and reject the switching interference [63]. By applying this algorithm, the sensitivity of PD detection system can be enhanced.…”

Section: ) Pd Detection Methodsmentioning

confidence: 99%

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Motor Winding Insulation Degradation Under Repetitive Voltage Pulses

Yang,

Phung

2024

IEEE Access

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Variable speed drives (VSDs) are widely utilized to control motors such as pumps, compressors, fans, etc. However, the endurance of motor winding insulation under repetitive voltage pulse excitation is weakened, resulting in premature failure and shortening the expected operating life. This article reviews the literature of investigations spanning the last two decades on the problem. Researchers have focused on different aspects to explain this from a particular angle. The precise mechanism is complicated as a number of interacting factors contribute to premature insulation failure. Insulation degradation in motors can be attributed to thermal, mechanical, chemical, and electrical stress. It seems that space charge accumulation and partial discharge (PD) are the two main influences; the former can exacerbate the electric stress distribution whilst the latter promotes insulation deterioration.

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Section: ) Pd Detection Methodsmentioning

confidence: 99%

“…The circuit's signal was passed through a 72 MHz highpass filter to remove most of the source interference. The remaining interference was further filtered and analyzed using the algorithm described in [62,63]. The experimental setup is shown in Fig.…”

Section: ) Experimentsmentioning

confidence: 99%

Motor Winding Insulation Degradation Under Repetitive Voltage Pulses

Yang,

Phung

2024

IEEE Access

View full text Add to dashboard Cite

show abstract

Detection and Analysis of Partial Discharges under PWM Voltage Excitation

Cited by 1 publication

References 7 publications

Motor Winding Insulation Degradation Under Repetitive Voltage Pulses

Motor Winding Insulation Degradation Under Repetitive Voltage Pulses

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