Static decoupling of force and torque components in a moving-magnet planar motor

The paper describes simulations and measurements performed on the double-layer planar motor (DLPM), in order to analyze the static decoupling of the machine. By standstill levitation of the translator above the stator, the static coupling of force and torque components can be obtained. Possible sources of cross-coupling are predicted using an electromagnetic model and the obtained results are used to improve the static decoupling on the DLPM prototype. The performed measurements show the average cross-coupling over a grid can be minimized to less than one percent for all force and torque components.