High performance propulsion control of magnetic levitation vehicle long stator linear synchronous motor

Magnetic levitation vehicle (Maglev) essentially is a kind of Long stator linear synchronous motors (LSLSM). Its propulsion control of maglev is very special and complex. This paper analyze the mathematical model of LSLSM and the 2-steps change-step method, and present a position, speed and current three closed-loop propulsion control strategy with feedforward, especially propose how to deal with these regulators at changing step moment. Experimental verification of the proposed system is performed.