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This paper presents a three-phase magnetic guidance system to navigate magnetic drugs to the targeted position with induced magnetic forces on the magnetic drugs. A magnetic-vector controlled three-phase exciter has been developed for the magnetic guidance. A 15:1 reduced-scale prototype of the proposed magnetic guidance system is constructed to verify the feasibility of the magnetic navigation.

This paper presents the interpole-type magnetic actuator for navigation of magnetic drug. In the proposed magnetic actuator system, the magnetic actuator generates the magnetic field to magnetize the magnetic drug, and then the magnetic force is induced on the magnetic drug. However, the magnetic force is enhanced by increasing the phase current. Therefore, the interpole-type actuator is proposed in order to reduce the phase currents while increasing the magnetic force induced on the magnetic drug. Using the finite element method (FEM), the magnetic field of the magnetic actuator is analyzed to calculate the magnetic force induced on the magnetic drug. Finally, the prototype of the proposed interpole-type actuator for the magnetic actuating system is implemented to verify that the magnitude of the magnetic flux-density vector in the proposed interpole-type actuator is greater than that in the conventional actuator.