Decomposition Modelling Problem
Evaluation of Radiated Electromagnetic Field Interfernce Due to Frequency Swithcing in PWM Motor Drives by 3D Finite Elements
the effect of switching frequency of PWM motor drives on radiated Electromagnetic Field Interference (EMI) due to common Mode (CM) ground currents is invertigated. A technique with two successive steps is used to simulate conducted as well as the radiated EMI. At first, a high frequency PM machine model, a high frequency cable model, and a low frequency IGBT drive model are employed to simulate the common Mode (CM) current through ground paths, conducted EMI.
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Decomposition Modelling Problem
Optimum Equivalent Models of Multi-Conductor Systems for the Study of Electromagnetic Signatures and Radiated Emissions from Electric Drives
Multi Conductor systems exhibit a large number of self and mutual coupling inductances & capacitances in their operating environments.Need to create a numerically viable model of multi conductor systems without reduced accuracy.Developing an optimum multi-conductor equivalent model of a 3-phase induction machine a multi conductor example.Model used for the 3D-FE evaluation of radiated electromagnetic field emissions and signature in a multi-machine environment.
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Decomposition Modelling Problem
Physics-based Modeling of Multi-Scale Systems for Fault Diagnosis
Almost all of the engineering development process of electrical apparatus considers the EMC and EMI issues in the final stage of design at prototyping stage. Unfortunately, the cost of the mitigation actions for EMC problems that are not seen until prototype testing is almost high compared with the cost of the device changes introduced at earlier stages in the development life cycle.
