| Title |
A Study on Safety Diagnosis and Commercialization Evaluation Technologies on Core Electric Propulsion Equipment for Hybrid Small Vessels |
| Authors |
Du-San An ; Koog-Hwan Oh ; Hyun-Il Kim ; Sang-Taek Lee |
| DOI |
https://doi.org/10.5207/JIEIE.2026.40.3.212 |
| Keywords |
EMC; FMEA; HILS; Hybrid electric propulsion; IP test; Weighted RPN |
| Abstract |
With the strengthening of environmental regulations in the maritime sector, hybrid electric propulsion systems have emerged as an effective solution for reducing emissions from small vessels. This study focuses on the commercialization and evaluation technologies of core electric propulsion equipment for hybrid small vessels. To evaluate the safety and reliability of the propulsion system, Failure Mode and Effects Analysis (FMEA) is performed for major subsystems and components. A weighted Risk Priority Number (RPN) method is applied to improve the limitations of the conventional RPN method. In addition, measurement and fault diagnosis modules are developed to collect and monitor operational data from the propulsion system in real time. A Hardware-in-the-Loop Simulation (HILS)-based safety diagnosis environment is constructed, and EMC and IP54 tests are conducted for the integrated control system and propulsion motor. The results demonstrate that the applicability of the proposed technologies for the stable operation and commercialization of hybrid electric propulsion systems for small vessels. |