The research of control method for permanent magnet linear synchronous motor based on port-controlled hamiltonian

The traditional control strategy for permanent magnet linear synchronous motor (PMLSM) is more sensitive to variation of motor internal parameters, at the same time, the linear motor exists the end-effect. All these give difficulties to the precision control of motor. In order to realize the simple and precision control movement of PMLSM which is a part of free piston generator used in hybrid electric vehicle, a new passivity control method for PMLSM based on port-controlled hamiltonian (PCH) system and the viewpoint of energy were quoted in this paper. On the other hand, it establishs the mathematical model of PMLSM by combining with feedback stabilization principle, and designs the control system model which is simulated in Matlab/Simulink. The results demonstrate the validity of the theoretical analysis and the effectiveness of the control rule.