Research Progress on Aging of Insulation Materials of Power Equipment under Extreme Temperature Cycles

DOI

10.2991/978-94-6463-864-6_20How to use a DOI?

Keywords

Extreme Temperature Cycling; Insulation Material Aging; Life Prediction; Accelerated Aging Test

Abstract

Extreme temperature cycles critically threaten electrical insulating materials through thermal stress, oxidation, hydrolysis, and multi-field coupling effects, accelerating degradation via microcrack propagation and interface damage. While standardized tests (e.g., IEC 60216) assess thermal aging, they inadequately replicate multi-field coupling, risking distorted failure modes. Emerging online monitoring tools like terahertz time-domain spectroscopy (THz-TDS) and fiber Bragg grating (FBG) enable real-time defect imaging and strain-temperature tracking, enhancing condition assessment. Advanced lifespan models integrating multi-physics simulations and dynamic Bayesian networks outperform conventional methods, significantly reducing prediction errors. Material enhancements include functionalized nanofillers (KH-550-treated Al₂O₃, polydopamine-coated BN) to boost thermal conductivity and interfacial stability, while structural strategies like functional gradient materials (FGM) mitigate stress concentration. Protective coatings (superhydrophobic layers, phase-change materials) further improve resilience. Future priorities involve AI-driven predictive models, dynamic covalent bond networks for self-healing, and wide-temperature composites to ensure reliability in next-generation power systems. These innovations aim to address aging mechanisms holistically, bridging gaps between accelerated testing and real-world performance under extreme thermal cycling.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Junhao Jin
PY  - 2025
DA  - 2025/10/23
TI  - Research Progress on Aging of Insulation Materials of Power Equipment under Extreme Temperature Cycles
BT  - Proceedings of the 2025 2nd International Conference on Electrical Engineering and Intelligent Control (EEIC 2025)
PB  - Atlantis Press
SP  - 183
EP  - 196
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-864-6_20
DO  - 10.2991/978-94-6463-864-6_20
ID  - Jin2025
ER  -