Design and analysis of a novel flux-modulated permanent magnet linear generator with sandwiched armature stator

Abstract

This paper proposes a novel flux-modulated permanent magnet(PM) linear generator with sandwiched armature stator, which can achieve high thrust force density and fast response for free-piston energy converter. First, operating principle of the proposed tubular linear generator is discussed. And then influences of key design parameters of sandwiched armature on electromagnetic performances are analyzed by analytical and time-stepping finite element method (FEM). The FEM calculated results are consistent with those obtained theoretically.

Design and testing of a laboratory scale test rig for wave energy converters using a double‐sided permanent magnet linear generator

“…Analytical work is first required to determine the initial design for key parameters, such as the desired rated output power and the dimensions [5][6][7][8][9]. The defined model and structure are then simulated to determine the magnetic field distribution across the structure [10][11][12][13][14]. The simulation stage is also useful for optimising particular parameters, such as pole pitch, pole size, air gap, magnetic configuration, and type of the magnet [9,14,15].…”