Interior permanent-magnet synchronous machines are widely spreading in automotive and vehicle traction applications, because of their high efficiency over a wide speed range. This capability can be achieved by appropriated control strategies: Maximum Torque per Ampere (MTPA), Flux Weakening (FW) Volt (MTPV). However, these trajectories often based on an simplified magnetic model the electrical ...

Previous studies have explored the influence of atmospheric cloud radiative effects (ACRE) on the tropospheric circulation. Here the authors explore the influence of ACRE on the stratospheric circulation. The response of the stratospheric circulation to ACRE is assessed by comparing simulations run with and without ACRE. The stratospheric circulation response to ACRE is reproducible in a range ...

This paper proposes a modified primary flux linkage and an improved weighting less model predictive control for linear induction motors (LIMs) to enhance the drive system in terms of speed response, wide range, efficiency, computation time. Sliding mode controller is presented this work get quick response instead use PI controller. A (MPFC) employed eliminate factor reduce Furthermore, optimum ...

This paper presentsan investigation of a 3D-magnetic flux permanent magnet synchronous motor (3D-MF PMSM) used for electric vehicle applications. The investigated 3D-MF PMSM consists an integrated radial-flux and axial-flux structure. It has two air-gaps air-gaps, as well toroidal winding wound stator. structure helps to concentrate all the within maximize torque production. Moreover, there are...

the present work studied the application of membrane bioreactor (mbr) for tapioca wastewater processing that contained chemical oxygen demand (cod) ranging from 4000-9000 mg/l. a preliminary study was initially conducted in order to evaluate membrane performance with respect to its flux with mlss concentration ranging from 4,500 to 10,500 mg/l. it was clear that fouling was observed during the ...

Abstract Two dimensional excitonic devices are of great potential to overcome the dilemma response time and integration in current generation electron or/and photon based systems. The ultrashort diffusion length exciton arising from ultrafast relaxation low carrier mobility greatly discounts performance devices. Phonon scattering localization crucial understand modulation flux two disorder ener...

Evaporators used in organic Rankine cycles (ORC) are designed using existing flow boiling correlations that mainly based on HVAC&R data. However, the ORC evaporators employed industry typically have larger diameters and operational conditions at higher reduced pressures compared to applications. The present study presents results of heat transfer experiments representative for an industrial...

We report a dramatic variability event in the X–ray history of the Narrow–Line quasar PHL 1092 (z = 0.396). Our latest 2008 XMM–Newton observation reveals a flux drop of ∼ 200 with respect to the previous observation performed about 4.5 years earlier, and a drop of ∼ 135 with respect to its historical flux. Despite the huge X–ray variation, the UV flux remains constant producing a very signific...

The main objective of this work focuses on an electromagnetic analysis axial flux topology machine with mixed excitation system to meet the requirements electric traction system, whose speed ratio in field weakening region is 1:2. methodology employed consists elaboration a magnetic equivalent circuit and subsequent simulation device using Finite Element Method via numerical solving software.