Abstract
The self-healing property of metallized film capacitors is the key factor affecting reliability and lifetime. To study the effect of internal self-healing on capacitor’s lifetime, based on the actual operating conditions of DC-link capacitors in the flexible HVDC transmission system, the accelerated aging tests of metallized film capacitor elements under different voltages were carried out in this paper. A large number of morphological parameters of self-healing points were extracted by image recognition technology, and statistical models of characteristic self-healing parameters under HVDC were established. The influence of self-healing characteristics on lifetime of DC metallized film capacitor is revealed, and a capacitor lifetime prediction method based on characteristic quantity of capacitance loss during self-healing process is proposed. This study provides an efficient method for reliability evaluation of DC-link capacitors.
| Translated title of the contribution | Self-healing Characteristics and Life Prediction of Metallized Film Capacitor Under DC Voltage |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 2929-2937 |
| Number of pages | 9 |
| Journal | Gaodianya Jishu/High Voltage Engineering |
| Volume | 49 |
| Issue number | 7 |
| DOIs | |
| State | Published - 31 Jul 2023 |
Fingerprint
Dive into the research topics of 'Self-healing Characteristics and Life Prediction of Metallized Film Capacitor Under DC Voltage'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver