Wind turbine is a key device to realize the utilization of wind energy, and it has been highly valued by all countries. But mechanical gear transmission existing power disadvantages high vibration noise, failure rate, short service time. Magnetic field modulation electromagnetic new non-contact method. However, conventional magnetic low torque density defects with large fluctuations. In order o...

Accurate analysis of the air gap magnetic field is focus research in precision permanent magnet linear synchronous motors. In this paper, two-dimensional a secondary trapezoidal Halbach array coreless motor (PMLSM) was taken as our object. On basis equivalent surface current method, we proposed an improved analytical algorithm with side length unit. The model induction vector established, and P...

In this paper we use the Fourier transform (FT) to model and simulate the 3-D magnetic field created by finite, planar permanent magnet arrays that are Fourier-transformable and possess vertical magnetization. This approach captures the three dimensional characteristic of the fields, including the field components near the ends of the array. These end effects are important in small-scale precis...

This article presents the electromagnetic and mechanical design analyses of a 7.67:1 gear ratio magnetic (MG) for wave energy converter demonstrator. A 2-D 3-D magnetostatic finite-element analysis (FEA) was conducted to maximize mass torque density. To increase without increasing diameter, unique dual-stack rotor topology used along with 12-segment per pole-pair inner Halbach array four-segmen...

A kind of integrated motor propulsor (IMP) which can be used in underwater propulsion is designed in this paper, and the rotor of its propelling motor employs the Halbach structure. This paper considers the characteristics of IMP, and coupling model of the motor is established. Time-stepping finite element method is used to analyze the field-circuit coupling problem, and research in the aspect ...

In the work presented here, the suitability of an unusual energy storage medium is investigated. The energy storage system is based on the forceful compression of two magnetic Halbach arrays. The mass and volume energy density is obtained and compared to existing common energy storage systems. The charge and discharge times and depths are also discussed. In addition, limits and considerations, ...