Using renewable energy resources specially wind power during last two decades has increased as worldwide, there are now over two hundred thousand wind turbines operating, with a total nameplate capacity of 282,482 MW as of end 2012. [1,2] During this time, several wind turbine concepts h turbine systems: fixed-speed wind generators with multi single-stage or multi-stage gearbox) and direct Because of several advantages such as removing the gearbox, drive simplification, longevity, high reliability, weight reduction, maintenance cost reduction, higher aggregate efficiency, low level of vibration and noise of the drive train, simplified SCADA structure variable speed structures in wind power turbines are in attention. [4,5] Periodicals of Engineering and Natural Sciences http://pen.ius.edu.ba

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Abstract:Recently, interior permanent magnet synchronous motors (Interior-PMSMs) have become known as a good candidate for hybrid electric vehicle (HEV) traction drive application due to their unique merits. However, the dynamic and steady-state behaviors of these motors are quite dependent on the permanent magnet (PM) type, configuration, and volume in rotor structures. This paper uses a novel structure of Interior-PMSMs for traction applications with fragmental buried rotor magnets in order to achieve low torque ripple, iron losses, and cogging torque. In this paper, first, the effect of the PM type on a d-q equivalent circuit model is examined. Next, the design and simulation of an Interior-PMSM for HEV traction drive application, in order to extract the output values of the motor and sensitivity analysis of the PM type, are done using a 3-dimensional finite element method model. We then present the back electromotive force, power factor, cogging torque, flux density, torque per ampere diagram, PM volume, and constant power speed ratio value behavior of the designed Interior-PMSM with different PMs in the rotor structure, and we discuss the effect of temperature variation on these output parameters. This study can help designers in the design approach of such motors.

During last two decades, renewable energy sources have become crucial due to the traditional energy Therefore the usage of wind energy sources has been increased. [1] Several wind turbine concepts have been proposed. There are three major topologies of wind turbine systems: fixed-speed wind generators with multi multi-stage gearbox) and direct-drive wind generators. [2,3] Because of several advantages such as removal the gearbox, drive simplification, longevity, high reliability, weight reduction, maintenance cost reduction, high the drive train, simplified SCADA structure and better utilization of the available wind power, direct drive variable speed structures in wind power turbines are in attention. [3,4] Periodicals of Engineering and Natural Sciences http://pen.ius.edu.ba