The robust stability test of time-delay systems with interval parameters can be concluded into the robust stability of the interval quasipolynomials. It has been revealed that the robust stability of the quasipolynomials depends on that of their edge polynomials. This paper transforms the interval q...

The flux-modulated compound-structure permanent magnet synchronous machine (CS-PMSM), composed of a brushless double rotor machine (DRM) and a conventional permanent magnet synchronous machine (PMSM), is a power split device for plug-in hybrid electric vehicles. In this paper, its operating principl...

Transversally laminated synchronous reluctance machine (SynRM) are usually designed with multiple-layer flux barriers to achieve high electromagnetic performance. This paper summarizes three design methods to optimize the machine. Related implementation procedures are detailed. Besides, advantages a...

A novel structure of axial flux stator and rotor dual PMs Vernier machine is presented as an effective option for high torque-density direct-driven applications. The key is to locate PMs on both sides of rotor and stator. With dual PMs, this proposed machine with a novel structure generates an impro...

This paper presents a comparative investigation into unbalanced magnetic force (UMF) of asymmetric permanent magnet machines without rotor eccentricities, particularly focusing on the difference between internal- and external-rotor topologies. The asymmetric field distribution results in radial and ...