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In this study, with 15 kW induction motor is to be designed using the same stator structure and the new synchronous reluctance motor (synrm) were compared. SynRM are known as cold rotor motors. As with copper rotor induction motor (aluminum) rotor copper losses are minimized since no rods reduced to zero and the rotor losses. In this way it is achieved improvements in motor efficiency by reducing losses. Design of the rotor geometry SynRM rotor induction motor stator were performed using the same geometry. Design performing Ld/Lq rate design is made taking into consideration current barriers. The rotor lamination sheet on the air/iron ratio of parametric analysis on the lamination steel designed to be important for motor performance has been realized. This parametric analysis of lamination steel as a result it was decided to have 4 barrier. Asynchronous motors and SynRM analysis were compared. SynRM'n efficiency value according to the received value has occurred to a rise of 3%. Thus efficiency by changing the motor rotor induction class, which was raised to the IE1 IE3 class. The torque ripple is provided an improvement of approximately 8%. [ABSTRACT FROM AUTHOR]

Switched reluctance motors (SRMs) have been increasingly used in industrial applications because of their simple structure and reduced rotor loses. As a result of improvement of power electronics and computer technology, there have been increased attentions to control the SRMs. Dynamic characteristics of SRMs are varying depending on working conditions. A PI (Proportional-Integral) controllers with constant gain values have overshoot and oscillations at varying speeds and load especially at transient-state. In this paper, a fuzzy PI controller was proposed to control the speed of the SRM. Proportional and integral gains of the PI controller are tuned by fuzzy logic controller (FLC) depending on speed error and change of the speed error. Fuzzy PI controller was implemented using TMS320F240 digital signal processor. Experimental results showed that fuzzy PI controller has better performance than a PI controller with a range of working conditions. [ABSTRACT FROM AUTHOR]