Power-optimal force decoupling in a hybrid linear reluctance motor

Autor: Overboom, T.T., Smeets, J.P.C., Jansen, J.W., Lomonova, E.A., Mavrudieva, D.
Přispěvatelé: Electromechanics and Power Electronics, Electromechanics Lab
Jazyk: angličtina
Rok vydání: 2015
Zdroj: Proceedings of the 10th International Symposium on Linear Drives for Industry Applications (LDIA 2015), 27-29 July 2015, Aachen, Germany
Popis: This paper concerns the power-optimal decoupling of the propulsion and normal force created by a hybrid linear reluctance motor. The intrinsic limitations to the decoupling is addressed by the visualizing each force component with a quadric surface in the Euclidean space which is spanned by the three currents inside the linear motor. If both surfaces intersect, decoupling is possible and infinitely many current vectors exist which results in the desired force values. The search for the vector with the lowest power dissipation is formulated as an optimization problem and solved in real-time using the method of Lagrange multipliers. The intrinsic limitation and force decoupling are shown for a hybrid linear reluctance motor topology, which comprises three separately excited E-core stator segments and a moving salient armature. Transient FE-simulations show that the power-optimal decoupling method results in a maximum position error of 15 µm when the armature is magnetically suspended and propelled underneath the stator segments.
Databáze: OpenAIRE