关键词: 中低速磁浮, BTM设备, 电磁干扰

Abstract: The electromagnetic environment of medium-low speed maglev railway is complex, and the on-board BTM equipment is extremely vulnerable to electromagnetic interference, which affects the normal operation of train control system. Based on the Fenghuang Maglev project, this paper collectes in detail the faults occurred during the commissioning of the on-board BTM and the field electromagnetic environment test records of maglev train under various working conditions. Through comparative analysis, the main sources and coupling paths of electromagnetic interference are determined, and a series of measures to suppress the electromagnetic interference conduction of BTM equipment are formulated according to the electromagnetic interference conduction path. The test results show that these measures can effectively restrain electromagnetic interference from conducting on BTM equipment, and improve the adaptability of BTM equipment to electromagnetic environment. The research methods adopted in this paper and the preventive measures against electromagnetic interference of BTM equipment provide a reference for solving electromagnetic interference of on-board BTM equipment, and also accumulate valuable experience for the subsequent construction and operation of medium-low speed maglev railway.

Key words: medium-low speed maglev transit, BTM equipment, EMI