The flux-switching transverse flux permanent magnet linear machine (FSTFPMLM) is proposed in this paper combining the advantages of transverse flux linear machine and flux-switching linear machine. Firstly, the structure and operating principle of FSTFPMLM is presented. Secondly, the magnetic field of a simplified FSTFPMLM is numerically computed by three-dimensional (3-D) finite element method (FEM). Thirdly, the thrust characteristics of the machine, including thrust force, cogging force and force ripple are numerically analyzed. The influence of structure parameters on the thrust characteristics has been analyzed by 3-D FEM. The law of thrust, cogging force and force ripple as the pole pitch ratio between primary and secondary and the ratio between tooth width and pole pitch of secondary variable provides the guidance to design FSTFPMLM, which aims to achieve the larger thrust, smaller cogging and force ripple using less permanent magnet materials. The thrust force capabilities of FSTFPMLM are compared with other topologies of linear machines. Finally, the prototype and experimental setup have been developed, and the calculated results and the measured results are in good agreement.

Containment control of first-order multi-agent systems with uncertain topologies and communication time-delays is studied. Suppose system topologies are dynamically changed, a containment control algorithm with time-varying delays is presented. The stability of the control algorithm is studied under the assumption that communication topologies are jointly-connected, and constraint condition of distributed containment control for delayed multi-agent systems is derived with the aid of Lyapunov-Krasovskii function. Simulation results are provided to prove the correctness and effectiveness of the conclusion.