Magnetic hysteresis effects, present in the force of an E-core reluctance actuator, are examined by simulations and measurements. Simulations have been performed with a 3d finite element method (3d-FEM) and a Preisach model, which is extended with a dynamic magnetic equivalent circuit (MEC) model. Both simulation methods are first examined on the prediction of the magnetic flux density in a closed- and open toroid for dc- and ac excitations. Finally, both methods are used to predict the force of the E-core reluctance actuator, which is compared to ac force measurements performed with a piezoelectric load cell.
|Title of host publication||Proceedings of the Ninth International Symposium on Linear Drives for Industry Applications (LDIA13), 7-10 July 2013, Hangzhou, China|
|Publication status||Published - 2013|