关键词: 直线发电机, 简谐振动, 感应电动势, 定位力, 斯特林直线发电机

Abstract:

Aiming at the problem that the EMF waveform of the linear generator is usually irregular at the condition of simple harmonic vibration, a new method was proposed. By using single-phase winding and setting the range of vibration nearby the zero point of the Ψ(x) curve at the length to one third of the pole pitch, the EMF waveform can be close to sine wave. A fine EMF waveform with harmonic less than 4% was obtained under finite element simulation.Results show that the single-phase winding linear generator has better ouput at the condition of simple harmonic vibration with small amplitude, which fits the linear Stirling power system. And the stability of the vibration center can be realized by adjusting the phase of the detent force. The research can provide reference for the design of linear Stirling generator.

Key words: linear generator, simple harmonic vibration, induced electromotive force (EMF), detent force, linear Stirling generator