A THEORETICAL AND EXPERIMENTAL INVESTIGATION OF FERRORESONANT CIRCUITS

摘要

In the first part of this report, the nonlinear characteristics of the iron core reactors are investigated. Review of well-known methods of representations led to a new way of representing the multivolume nonlinearity characteristics of the iron cores by means of active and passive linear networks. The active and passive equivalent circuits of the iron cores explain in part the existence of the different natural modes of oscillations in ferry resonant circuits.nIn the second part, the series ferry resonant circuit is analyzed with the aid of well-known classical methods as discussed briefly in the text. The well-known frequency response and amplitude response relations are derived and the results indicated by means of plotted curves. The probable and practical applications of the ferry resonant circuits are discussed.nIn the last part, the effect of the hysteretic on the volt-ampere characteristic is shown, which, with the stability consideration, explains the existence of the sub harmonics of the first kind.