Simulation of the Linear Primary Permanent Magnet Vernier machine system for wave energy conversion

The purpose of this paper is to describe a Linear Primary Permanent Magnet Vernier (LPPMV) machine system for direct drive wave energy conversion. Firstly, the structure of the LPPMV machine is proposed and the operation principle of the proposed machine is depicted. Secondly, the mathematical model of the machine is derived based on the three-phase stator coordinate system. Then the control strategy of the maximum energy absorption is discussed. Finally, the simulation model is established based on Matlab/Simulink to investigate the performance of the control system. The simulation results are given to verify the feasibility of the LPPMV machine system for direct drive wave energy conversion.