Proposal of Electromagnetic Pulse (EMP) Coupling Estimation Method to Power System including Load condition and Surge Protection Device (SPD)

In recent years, the interest of the electromagnetic pulse (EMP) threat is increasing with the rapid development of the electronics industry. Especially, the power cable is one of the targets that can be exposed to EMP and affect to the appliance. However, the EMP-coupling method is previously insufficient and is partially analyzed between EMP sources and cable. Because the simulation method such as the finite-difference time-domain (FDTD) and an experiment often take a very long time to present the EMP-cable coupling. Therefore, in this paper, we propose the EMP-estimation coupling method to analyze from the overall perspective based on the hybrid electromagnetic (EM) numerical method. In addition, the protection guideline for the appliance is evaluated as the cable length is changed.