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| Yatai Ji |
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| North China Electric Power University, China |
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| Co-chairs: |
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| Hengliang Zhang |
Dayong Zheng |
Dongbo Guo |
Xiaowei Ju |
| Southeast University, China |
Beijing Jiaotong University, China |
Tsinghua University, China |
Shenyang University of Technology, China |
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| Keywords: |
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- Insulation failure mechanisms and reliability assessment (绝缘失效机理与可靠性评估)
- High-performance inverter-fed motors (高性能变频电机)
- Medium- and high-frequency transformers (中高频变压器)
- Partial discharge (局部放电)
- Insulation aging and lifetime prediction (绝缘老化与寿命预测)
- Multiphysics coupling (多物理场耦合)
- Insulation condition monitoring and early warning (绝缘状态监测与预警)
- Ultimate utilization of insulation performance (绝缘性能极限利用)
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| Topics: |
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- Insulation failure mechanisms of medium- and high-frequency electrical equipment under multiple coupled stresses
(多应力耦合作用下中高频电工装备的绝缘失效机理)
- Inception mechanisms and modeling of partial discharge under high-frequency pulse voltages
(高频脉冲电压下局部放电的起始机理与建模)
- Insulation aging mechanisms and lifetime prediction methods under complex operating conditions
(复杂工况下绝缘老化机理与寿命预测方法)
- Online condition monitoring and early fault warning methods for inverter-fed motor insulation
(变频电机绝缘状态在线监测与早期故障预警方法)
- AI-integrated multi-objective design and optimization of medium- and high-frequency electrical equipment
(融合人工智能的中高频电工装备多目标设计与优化)
- High-power-density electrical equipment design theory considering insulation reliability constraints
(计及绝缘可靠性约束的高功率密度电工装备设计理论)
- Intelligent condition sensing and health management of electrical equipment
(电工装备状态智能感知与健康管理)
- Topologies, control, and applications of novel electrical equipment
(新型电工装备的拓扑、控制与应用)
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| Summary: |
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- Medium- and high-frequency electrical equipment, represented by inverter-fed motors and medium/high-frequency transformers, is essential to the advancement of electrified transportation and modern distribution networks. Under high-frequency pulse voltages and multi-stress coupling conditions, insulation failures have become increasingly prominent, while the underlying failure mechanisms remain insufficiently understood. In addition, the lack of a precise quantitative mapping between design parameters and insulation reliability often drives the design process into a dilemma of “over-redundancy” or “under-redundancy”: excessive insulation margin sacrifices power density, contradicting the trend toward lightweight and compact equipment; insufficient margin compromises insulation reliability, thereby threatening system operational safety. This session focuses on the optimal design of medium- and high-frequency electrical equipment under insulation reliability constraints, aiming to explore new theories and methods that reconcile high insulation reliability with high power density.
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- 以变频电机和中高频变压器为代表的中高频电工装备，是支撑电气化交通与新型配电网发展的关键。在高频脉冲电压和多应力耦合工况下，装备绝缘失效问题日益突出，失效机理尚不明晰。同时，设计参数与绝缘可靠性之间缺乏精准的量化映射关系，使得设计极易陷入“过冗余”或“欠冗余”的困境：绝缘裕度过大会牺牲功率密度，与装备轻量化、紧凑化的发展趋势背道而驰；裕度不足则会降低绝缘可靠性，进而威胁系统运行安全。本分论坛聚焦绝缘可靠性约束下的中高频电工装备优化设计，探索兼顾高绝缘可靠性与高功率密度的设计新理论与新方法。
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