Permanent-Magnet Synchronous Generators (PMSGs) exhibit high efficiency and power density, and have already been employed in gearless wind turbines. In the gearless wind turbines, due to the removal of the gearbox, the cogging torque is an important issue. Therefore, in this paper, at first, design of a Permanent-Magnet Synchronous Generator for a 2MW gearless horizontal-axis wind turbine, acco...

A new permanent magnet design for axial flux interior permanent magnet (AFIPM) motor is described in this paper. Poleshoes are traditionally used to produce sinusoidal flux linkage and sinusoidal EMF especially in the case of radial flux synchronous machines. Poleshoes are not a practical solution in the case of axial flux PM machine. The use of poleshoes in the production of sinusoidal back EM...

This paper addresses an integrated and developed approach to the design of Axial Flux Permanent Magnet Wind Generator (AFPMWG). The proposed analytical method employs size equations precise inductance calculations simultaneously, as well considering mechanical constraints back-iron disc rotor. An Elitist Genetic Algorithm (EGA), such a high capability optimization method, has been used solve wi...

ABSTRACT: The wind turbine generator is operated such that the rotor speed varies according to wind speed to adjust the duty cycle of power converter and maximizes wind energy conversion system efficiency. The rotating speed of permanent-magnet generator should be adjusted in the real time to capture maximum wind power. This paper proposes a quite simple maximum power point tracking control sch...

Different types of permanent magnet generators for wind power application have been subject of research during last two decades. In this thesis different topologies of electrical generators have been investigated for small scale vertical axis wind turbine application. A two stage induction generator is proposed as a alternative solution with respect to the cost of such a system. However, a bigg...

The article presents the concept of an electromagnetic circuit generator with permanent magnets mounted on the surface rotor core designed for single phase work. Computation field-circuit model was shown. The spectrum of time course of voltages in the idle work was presented. The cross section with graphically presentation of magnetic induction in particular parts of electromagnetic circuits wa...

Renewable energy sources such as wind, solar, geothermal and tides have increasingly been used to generate electricity. Among these energy sources wind power has gained enormous attention in many parts of the world where no fossil fuels exist and energy requirements are highly demanded. The efficiency of wind power mainly depends on wind produced and a generator converting wind power to electri...

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 stator, a...

<p>The development of axial-flux permanent-magnet (AFPM) machines has become a mature technology. The single-stator double-rotor (SSDR) AFPM structure advantages on the compactness and low up to medium power applications so microscale size low-cost are reachable be designed. research main objectives designing manufacturing lateral shifting from north poles first rotor face second (NN) sou...

Abstract The article introduces two new designs of flux switching permanent magnet alternators with a radial and an axial arrangement the inductor relative to magnetic switch. study presents results 3D modelling along outcomes physical experiments. In course laboratory experiments, theoretical estimations are compared actual performance parameters. presented in form power output voltage curves ...