The superconducting magnetic levitation system (Maglev) employs a linear synchronous motor (LSM) with the primary side placed on the ground. This system uses a combined levitation and guidance system with propulsion coils arranged on the surface of the sidewall. The propulsion coils are also electro-magnetically coupled to each other because they are attached in two layers. Therefore, the propulsion coils on both sidewalls are electro-magnetically coupled with the combined levitation and guidance system. To analyze the electric surge of such an electro-magnetically complicated Maglev system, we measured the surge between propulsion coils and simulated it by using the Electro-Magnetic Transients Program (EMTP) in consideration of mutual coupling between coils.

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