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Degradation-Sensitive Health Indicator Construction for Precise Insulation Degradation Monitoring of Electromagnetic
Yue Sun1,2,3,4, Kai Wang1,2,3, Aidong Xu1,2,3
1Key Laboratory of Networked Control Systems, Chinese Academy of Sciences, Shenyang 110169, China.
This study introduces a novel health indicator for monitoring electromagnetic coil insulation degradation. The degradation-sensitive health indicator (DSHI) enables predictive maintenance, preventing costly equipment failures.
Area of Science:
- Electrical Engineering
- Materials Science
- Predictive Maintenance
Background:
- Electromagnetic coils are critical in energy systems, but insulation failure is common.
- Failures can lead to severe industrial consequences, necessitating predictive maintenance strategies.
- Early detection of insulation degradation, before turn-to-turn shorts, is crucial.
Purpose of the Study:
- To investigate electromagnetic coil insulation degradation from macro and micro perspectives.
- To develop a precise method for monitoring insulation health.
- To enable predictive maintenance for industrial equipment with coils.
Main Methods:
- Proposed a degradation-sensitive health indicator (DSHI) using high-frequency electrical response parameters.
- Employed coil finite element analysis and accelerated degradation tests for micro-level analysis.
- Correlated macro and micro degradation effects to validate the DSHI method.
Main Results:
- Developed a DSHI based on trend, monotonicity, and robustness for sensitive monitoring.
- Obtained actual turn-to-turn insulation status through micro-level analysis.
- Validated the DSHI method and determined its operational threshold.
Conclusions:
- The DSHI offers precise monitoring of electromagnetic coil insulation degradation.
- This approach facilitates predictive maintenance, enhancing industrial system reliability.
- The validated DSHI method opens new avenues for equipment upkeep.
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