2011 年 77 巻 779 号 p. 2684-2694
The feasibility of parallel magnetic suspension is studied experimentally. Parallel magnetic suspension suspends multiple floators with a single power amplifier. Parallel magnetic suspension systems are classified according to the number of floators (multiplicity) , the output type of amplifier and the connection method of coils. This paper focuses on the current-controlled double suspension system with series connected coils. An experimental system is built by combining two magnetic suspension systems. A simultaneous stable levitation of the two floators was achieved by using PD control with a single power amplifier. Several dynamics characteristics were measured. They agreed with simulation results in tendency.