In the permanent magnet linear synchronous motor (PMLSM), force ripple is harmful, useless and disturbing. The force ripple is basically composed of two components: detent force and mutual force ripple. This force is influenced by the geometric parameters of the permanent magnet (PM) motors; such as width, thickness and length of the magnet poles, length and thickness of the rotor and stato...

Several approaches are available to reduce pulsating torque components in permanent magnet motors. One of the known techniques is stator tooth shape modifications. This paper presents an integrated algorithm applicable for tooth shape optimization of permanent magnet motors. This method focuses on the reduced basis technique, finite element analysis and Taguchi method and is conducted on tooth ...

This paper presents an analysis and simulation of a Wind Turbine Generator (WTG) driving a low speed Permanent Magnet Synchronous Generator (PMSG). The results of the tests are obtained by using the PSIM computer simulation program. The voltage source PWM inverter is used to interface the system with the electrical utility that is simulated in this paper as a resistive-inductive load.

in Cerritos, California. She designs high-speed medium-voltage permanent-magnet machines. She began her career as an Integrated Drive Generator Design Engineer with Hamilton Sundstrand, designing an integrated variable speed transmission and AC generator for various military aircraft applications. Ms. Bailey graduated from Northwestern University with a B.S. degree (Mechanical Engineering, 2003...

Solutions Efficient operation of the gas turbine imposes the demand for very high rotational speed of the generator 240,000 rpm. The permanent magnet machine has been chosen as the generator type since this technology is the most promising for high-speed machines: it offers high efficiency and very high power density at low volumes. A high-frequency power converter is required to enable bi-dire...

axial flux permanent magnet (afpm) machines are attractive candidates for electric vehicles (evs) applications due to their axial compact structure, high efficiency, high power and torque density. this paper presents general design characteristics of afpm machines. moreover, torque density of the machine which is selected as main objective function, is enhanced by using genetic algorithm (ga) a...

Abstract—This paper proposed an estimation approach of temperature rise in stator winding and rotor magnet of a surfaced-mounted permanent magnet (PM) AC motor. By using the 3rd-order extended Kalman filter (EKF) algorithm in rotating reference frame, stator winding resistance and rotor PM flux-linkage can be estimated independently. After comparing the estimation results of resistance and flux...

Due to its particular configuration, the Consequent Pole Permanent Magnet (CPPM) machine allows one to easily control the airgap flux in a wide range so that the power capability of the machine is increased over a wide speed range. Two components of the flux, one almost constantcoming from the permanent magnet located on the rotor surface of the machine, and the other –variablecoming from a fie...