Study on the Suspension Model and Control of Spherical Driving Joint with Magnetic Levitation

This paper presents a novel Multi-Degree-of-Freedom magnetic levitation sphere driving joint. It analyses the relevance theory of air-gap magnetic energy of the mechanic and electric energy transformation while the magnetic levitation force and electromagnetic torque were generated by driving joint, which based on the principles of state reconstruction. It achieves state synchronization suspension control and self-test feedback control without sensor of the rotor. The simulation experiment shows that the state synchronization suspension control owns high precision and interference immunity.