The dynamic characteristics of self-healing processes in metal film capacitors

Belko, Victor; Bondarenko, P. N.; Emelyanov, Oleg

doi:10.3103/s106837120703008x

Cited by 18 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the same time, the change of the interlaminar pressure also has an impact on the self-healing, which manifests that increasing the pressure can effectively improve the self-healing performance, reduce the capacitance loss, and improve the service life of the capacitor. 28 Consequently, the above examples can be described by reliability models with self-healing and self-repairing under different environments and shock. This paper develops novel reliability models and analyzes reliability under cumulative shock model and extreme-cumulative-mixed shock model.…”

Section: Illustrative Examplesmentioning

confidence: 99%

“…When the working voltage increases, the self‐healing ability of the capacitor decreases significantly, which leads to a significantly faster loss of capacitance. At the same time, the change of the interlaminar pressure also has an impact on the self‐healing, which manifests that increasing the pressure can effectively improve the self‐healing performance, reduce the capacitance loss, and improve the service life of the capacitor 28 …”

Section: Notations and System Descriptionsmentioning

confidence: 99%

See 1 more Smart Citation

Reliability analysis on systems with self‐healing and self‐repairing under different environments and shock models

Xing

2022

Quality & Reliability Eng

View full text Add to dashboard Cite

Inspired by the process of self‐healing of biological damage, high technology materials with self‐healing and self‐repairing mechanisms have been developed for high reliability and long lifetime. Therefore, the reliability modeling on intelligent systems with healing performance has become a research hotspot. Based on the diversity of healing mechanisms, this paper proposes a two‐phase reliability model method on self‐healing and self‐repairing systems. Impacts of environments, shock loads, self‐healing, and self‐repairing mechanisms are taken into account in this novel model. Besides, system lifetime and some reliability indexes under two shock models are derived, respectively. Moreover, Monte Carlo simulations are conducted to verify the accuracy of reliability under two models. Finally, an engineering case of metallized film capacitor is provided to illustrate the effectiveness and applicability of the proposed models by comparing numerical results and simulation results.

show abstract

Section: Illustrative Examplesmentioning

confidence: 99%

Section: Notations and System Descriptionsmentioning

confidence: 99%

Reliability analysis on systems with self‐healing and self‐repairing under different environments and shock models

Xing

2022

Quality & Reliability Eng

View full text Add to dashboard Cite

show abstract

“…After investigation of the self-healing process, the most preferable type for completing self-healing and its favored conditions were given [5]. The contributing factors to self-healing, including the sheet resistance of electrodes; the interlayer air, pressure, and temperature dependence [6,7]; and other dynamic characteristics [8], were investigated to evaluate their effects. Models were built to describe the destruction [9][10][11] and the clearing mechanism [12] in the self-healing process.…”

Section: Introductionmentioning

confidence: 99%

Detection of Self-Healing Discharge in Metallized Film Capacitors Using an Ultrasonic Method

Shen

Pei

et al. 2020

Electronics

View full text Add to dashboard Cite

Benefiting from self-healing features, metallized film capacitors (MFCs) are widely employed to compensate reactive power (VAR) and thus improve the performance of AC systems. To ensure the aforementioned functions, self-healing testing is a compulsory quality inspection for every type of MFC. In 2014, the International Electrotechnical Commission (IEC) issued a standard that recommended a general and instructive test procedure based on audible noise or ultrasound signals. However, more details relevant to this high voltage (HV) test were not provided. In this paper, we focused on the ultrasonic detection technique to reveal the self-healing characteristics of two typical MFCs. By launching a series of HV tests with star and delta MFCs, the waveform features, discharge energy, and spectrum distributions were analyzed. It was observed that the partial discharge always occurs before self-healing discharge with the same spectrum features ranging above 40 kHz. To solve the entanglement of these two discharge processes, a relative amplitude difference method is proposed. Based on the experimental observations, a detection algorithm incorporated with the ultrasonic emission sensors, preamplifier, and high-speed A/D converter was developed to assist the self-healing performance test.

show abstract

Thermodynamic Principles of Self-Healing Metallic Materials

Nosonovsky

Rohatgi

2011

Springer Series in Materials Science

View full text Add to dashboard Cite

The dynamic characteristics of self-healing processes in metal film capacitors

Cited by 18 publications

References 3 publications

Reliability analysis on systems with self‐healing and self‐repairing under different environments and shock models

Reliability analysis on systems with self‐healing and self‐repairing under different environments and shock models

Detection of Self-Healing Discharge in Metallized Film Capacitors Using an Ultrasonic Method

Thermodynamic Principles of Self-Healing Metallic Materials

Contact Info

Product

Resources

About