The hybrid excitation flux switching permanent magnet (HEFSPM) motor with magneticbridge is a topology of flux-switching PM machines. Despite its excellent performancesuch as high torque/ power density, enhancing/ weakening capability and so on, it has receivedless attention due to complicated structure. Therefore, optimal design performance all need tobe further investigated. This paper presen...

Assuming LTE, we synthesise solar G band spectra from the semiempirical flux-tube model of Briand & Solanki (1995). The results agree with observed G-band bright-point contrasts within the uncertainty set by the amount of scattered light. We find that it is the weakening of spectral lines within the flux tube that makes the bright-point contrast in the G band exceed the continuum contrast. We a...

An ensemble of idealized experiments with the simplified general circulation model PUMA is used to analyze response reduced surface friction, that a strengthening eddy-driven jet, weakening Eulerian mean overturning, and suppression baroclinic instability. The instability caused by an effect called barotropic governor which increased horizontal shear restricts ability disturbances convert avail...

A novel mechanical flux-adjusting permanent magnet linear eddy current brake with high performance and its nonlinear analytical model are proposed. The innovative point lies in attaching an additional magnetic adjuster directly above the interior bar, which can achieve flexible adjustment of air-gap flux improve generation capacity braking force regulation range. Considering importance analytic...

A voltage-parameter map (VP-Map) is proposed for predicting the performance of electric vehicles (EVs) and hybrid EVs (HEVs), which varies with respect to parameters in a variable load flux-weakening range, determining design parameters. Through this, maximum torque that can be generated at speed, input current generation rated torque, whether vehicle operable light are predicted, suitable 120-...

In this paper, electromagnetic multi-step transmissions are introduced as a method for increasing the torque and efficiency of electric vehicle driving motors. Motors using permanent magnets have limited ability in speed back electromotive force increases increases. The motor performs field-weakening controls to increase after rated point. Field-weakening control rotor’s by weakening magnetic f...

In this paper, a novel intensifying-flux variable flux-leakage interior permanent magnet (IFVF-IPM) machine is proposed, in which flux barriers were designed deliberately between the adjacent poles to obtain effect and property. The rotor topology design principles of proposed are also introduced. Then, multi-objective optimization method adopted based on sensitivity analysis, some variables IF...