EMI of electrical machines: A method for the computation of magnetic interactions between several machines

摘要

The aim of this research work is the elaboration of a method able to compute the electromagnetic interferences (EMI) of complex systems including several electrical machines and transformers considered as active sources. A two layer method is proposed, it allows to split the complex problem in several simpler operations. For the first calculation layer, the flux density is computed separately in each machine and on closed surfaces surrounding the sources. The second layer consists of computing the magnetic flux density resulting from all the machines at any point of the free space around the system by a boundary integral method. The interactions between active sources situated at short distances are solved by an iterative method.