Electric vehicle (EV) technologies have advanced rapidly in response to the global demand for sustainable transportation. The integration of electric propulsion systems into various platforms—such as road vehicles, buses, aircraft, ships, and marine vessels—has introduced complex challenges in safety, energy management, and electromagnetic compatibility (EMC). Among these, grounding and bonding systems are fundamental to ensuring operational reliability and human safety. Effective grounding not only protects against electric shock but also facilitates fault current management, reduces electromagnetic interference, and minimizes corrosion in high-voltage circuits. This study provides a comprehensive review of grounding methodologies applied in different EV platforms and the associated protective strategies used in high-voltage environments. Recent research findings, case studies, and international standards—including IEEE Std. 142, IEEE Std. 80, and IEC/IEEE 80005-1—are examined to evaluate best practices for achieving safe and EMC-compliant designs. Additionally, the study discusses HVDC fast-charging systems, ship-to-shore connections, and bonding approaches for composite structures in electric aircraft. Future directions such as intelligent insulation monitoring, adaptive grounding techniques, and standard harmonization are proposed to enhance the safety, performance, and global interoperability of next-generation electric transportation systems.
Yunus Emre Ekici (Sat,) studied this question.