Analysis of energy conversion in the instantaneous power transfer process in the electromechanical system with variable inductance

Abstract

The paper presents the analysis of energy conversion processes in the dc electromechanical devices with variable inductances. With respect to the instantaneous power balance in the electromechanical system, the mechanical power transfer is considered for the operating cycle. The generalized structural model of the electromechanical converter with variable inductance is proposed. The model consists of three subsystems which are cascaded by instantaneous power transfer channels. The model is distinguished by the internal magnetic energy source in the magnetic subsystem with additional channels for magnetic power transfer. Energy conversion conditions influence the instantaneous power transfer channel operation. The magnetic energy restoring factor and its sign are the criterions of the energy conversion processes difference. The instantaneous power flux circulation accompanied by complicated electromagnetic energy conversion processes in dynamic modes is established by experiments.