Advanced Design, Monitoring, and Operation for Reliable Power Electronics

Dear Colleages,

Power electronics is foundational to modern energy and mobility systems, from renewables and EV drivetrains to aerospace, industrial automation, and HVDC. As wide-bandgap devices (SiC, GaN), advanced packaging, and high-power integration accelerate, reliability has become a first-order design objective rather than a post-test checkpoint. Ensuring dependable operation now requires cross-layer methods that connect materials, devices, modules, and system controls, including the following: understanding failure mechanisms and mission-profile stresses; physics-based and data-driven modeling; standardized qualification and accelerated testing; and tightly coupled thermal, electrical, and mechanical co-design. At the operational level, condition monitoring, health assessment, and predictive maintenance, augmented by AI technologies, are enabling early anomaly detection and lifetime evaluation, while reliability-aware control and intelligent protection improve robustness under real-world transients. This Special Issue targets advances that turn reliability into a measurable, optimizable attribute across design, monitoring, and operation, bridging theory and field deployment.

Topics of interest include, but are not limited to, the following:

• Integration of artificial intelligence for design optimization of power electronics.
• Reliability considerations of emerging wide-bandgap devices, including new packaging materials and interconnection technologies.
• Test methods, platforms, and failure-mechanism analysis of device and converter levels.
• Degradation modeling and analysis that leverage data-driven, physics-informed, and hybrid (test and simulation) approaches.
• Thermal modeling, sensing, and characterization for temperature estimation and lab-to-field transferability.
• Fault diagnosis and remaining-useful-life estimation, with explicit uncertainty handling for robust decision-making.
• Reliability-oriented control and thermal management for converter operation.

Dr. Yichi Zhang
Dr. Xu Li
Guest Editors

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