Research on Health Status Evaluation of Measurement and Control Devices by Fusing Chip-Board-Device Information

Measurement and control devices are important secondary equipment in substations, and their health status can provide guidance for equipment condition maintenance and troubleshooting, and it is crucial to ensure the health of devices for safe and stable operation of substations. However, the existing secondary equipment assessment focuses on equipment or board-level information and lacks an overall consideration of chip-board-device. This paper establishes a chip-board-complete three-level device health evaluation system covering the core modules of the measurement and control device and proposes a fuzzy comprehensive rating method. Specifically, it is as follows: firstly, the typical structure of the measurement and control device is introduced; secondly, the three-level equipment health evaluation system of the measurement and control device incorporating chip-board-complete machine information is given; again, based on the normal-type affiliation function, the fuzzy comprehensive evaluation method of the measurement and control device is given; finally, the effectiveness of the method is verified by combining with examples.