Development of the linear synchronous motor propulsion testbed for super speed maglev

For the development of a super speed maglev train with 500km/h level, the high power and efficient linear synchronous motor(LSM) as a propulsion device is necessary. To control the LSM, the precise position information of maglev must be detected and transmitted to the inverter controller which provides the synchronized power to the LSM stator attached on the guideway. To minimize the power input to the stator, the whole guideway is devided into several sections and the power is supplied to the only one section which the train is running on. In this case, precise section change control is needed to mitigate the vibration and noise. In this study, to evaluate and test the control technologies for super speed maglev, the infinite loop type LSM testbed is developed.