Survey of models and reference data for prediction of e.m. field emissions from electrical machinery

Abstract

This paper addresses the problem of robust and accepted methods for the estimation of electromagnetic emissions from electrical machinery and more extensively, Adjustable Speed Drives. Machine emissions can also be considered for diagnostic purposes. In particular, the analysis of the electromagnetic signature of the machine is used for the detection of partial short-circuits inside windings or mechanical unbalancing faults. The focus is on consistent reference data and readily applicable models rather than on theoretical treatment, since the environment in which this apparatus operates is deemed by high levels of electromagnetic noise and propagation conditions far from ideal ones. *

A Simple and Economical System for Automatic Near-Field Scanning for Power Electronics Converters

“…Others are related to electromagnetic pollution spread in the surrounding environment or to the sensibility of the EUT to the external radiated noise [3,4]. There are a lot of characterizations that could be performed to study these effects using electromagnetic simulation flows [5,6] or through mathematical models that are able to predict electromagnetic interference (EMI) phenomena [7,8]. In some cases, an electromagnetic evaluation is performed through a classical measurement approach on a prototype [9].…”

Review of models and measurement methods for compliance of electromagnetic emissions of electric machines and drives

“…Correspondingly, the electromagnetic behaviour is quite varied, especially at low and medium frequency where the intensity and distribution of prevalently magnetic field emissions depend on the machine architecture and its design. This part of the spectrum of machine emissions is often used for diagnostic purposes [26], [27] and is less relevant from an electromagnetic compatibility (EMC) point of view.…”