Abstract
Wave processes in electric machines are one of the least studied modes of their operation, but these processes significantly affect the work of inter-circuit and especially case-isolation. In this paper, the exact high-frequency model of the asynchronous motor is presented. The proposed model allows to analyze both phenomena, as high-frequency up to several megahertzas, due to static nutrition, and low-frequency phenomena, which are usually analyzed with the help of quantitative characteristics of the engine. The high frequency model obtained with the help of time and frequency analysis can vary in a wide range of ts of magnitude and phase of phase-to-ground and phase-to-neutral impedances performed in the frequency range from 1 kHz up to 1 MHz. The adopted parameter-identification procedure, based on a Kaganovs metod data fitting, is reported in detail together with the estimated parameters[4]. The proposed model represents a simple solution to the analysis of HF ac motor drive problems linked to conducted EMI, and its validity has been recognized by other researchers. A comparison of experimental and modeled frequency characteristics for the 4A80A4 engine is presented.
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