Modern road vehicles are more and often being equipped with electric actuators. These intended to play critical roles in passengers comfort safety. Among the electrified components onboard vehicles, one can distinguish power steering (EPS) systems, which have been subject of intensive investigations covering both design control aspects. The abilities several AC motor topologies fulfil EPS syste...

The accurate extraction and analysis of slot harmonics caused by slotting in an induction motor are important for the motor’s performance evaluation state monitoring. However, frequency distribution rotor (RSHs) varies along with operating states motor, such as speed slip ratio, voltage current signals only contain small-amplitude RSHs compared other harmonics; both make it difficult to extract...

This paper deals with the design and optimization of a 2.1 MW rim-driven electric thruster for ship propulsion. For this purpose, double stator ironless rotor axial flux permanent magnet (AFPM) motor is considered as propulsion motor. The analytical model selected AFPM presented. magnetic field in machine calculated using 3D charge concept combination image theory permeance functions to take in...

In order to investigate the influence of different diameters on pile end resistance, side axial force and transmission law jacked penetration, two pairs embedded sensitized microfiber grating sensors were installed by slotting body. The pile-jacking process static-pressing viscous foundation soil with closed-tube model piles was successfully monitored. test results show that pressure, resistanc...

In an interior permanent magnet synchronous motor (IPMSM) with segmented skewed poles, the armature reaction magnetic field (AR-MF) changes nonlinearly due to saturation of rotor barrier. Meanwhile, this varies under different excitation currents. As a result, it is difficult be calculated by means analytical methods. paper, calculation model AR-MF IPMSM first established vector superposition m...

Antitrust regulations are meant to promote fair competition in the market, but balancing administrative and legal costs with enforcement can be difficult when multilayered supply chains involved. The canonical example of this challenge is landmark Illinois Brick ruling, which limits antitrust damages only direct purchasers a product; for instance, consumers file claims against colluding retaile...

A discrete winding function analysis (DWFA) based approach for the modelling of skewed rotor cage-type induction motor with minimal simulation time is presented in this paper. The slot skew has a significant attenuating impact on principal slotting harmonics (PSH) or (RSH). These can play role sensor-less speed estimation and condition monitoring machines. advanced fault diagnostic algorithms a...

Due to the local inhomogeneous magnetic saturation of core interior permanent magnet synchronous motor (IPMSM), field changes nonlinearly, which makes analytical calculation difficult. Therefore, mostly relies on finite element method (FEM). However, high computation cost FEM restricts efficiency design and analysis IPMSM. In this article, an model (AM) slotless open-circuit air-gap (OC-AG-MF) ...