Efficient Eddy-Current Analysis of Laminated Iron Cores Using Multi-Scale Model Order Reduction

摘要

The paper develops a multi-scale Model Order Reduction (MOR) method including both material- and device-scale MORs. The material-scale MOR homogenizes the eddy-current field in laminated cores using the Legendre expansion of magnetic induction along the stacking direction within each steel sheet. The machine-scale MOR represents the eddy-current field in electromagnetic devices with their equivalent Cauer Ladder Network (CLN). The former MOR is built into the latter by applying the CLN procedure to the homogenized eddy-current field equation.