Browsing by Author "Shaik, A.A."

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    Design analysis and performance characteristics of switched reluctance motor
    (2010) Yaragatti, Udaykumar R.; Shaik, A.A.; Deepika, K.S.R.
    Switched Reluctance Motor (SRM) is coming up as an alternative selection for variable speed drives in many automobile and industrial application. Its construction is simple and rugged. Its higher efficiency, high torque to inertia ratio and thermal toughness are some of the salient advantages of SRM. However, the SRM has not gained prominent importance in many practical applications, because of its few disadvantages like large torque ripple, acoustic noise and proper design. In this paper, the step by step design procedure of SRM is explained based on the previous literature available, for preliminary design. Finally the over all modifications and validations are carried out using finite element methods .Based on the design validations a proto type has been developed for automobile application .The experimental method verification of the motor winding inductance at different rotor positions from un-aligned to aligned position and ,the static flux linkage characteristics are also presented as they play an vital role in design verification and performance calculation of an switched reluctance motors (SRM's). The simulation results are having good conformity with the experimental results. �2010 IEEE.
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    Design analysis and performance characteristics of switched reluctance motor
    (2010) Uday Kumar, R.Y.; Shaik, A.A.; Deepika, K.S.R.
    Switched Reluctance Motor (SRM) is coming up as an alternative selection for variable speed drives in many automobile and industrial application. Its construction is simple and rugged. Its higher efficiency, high torque to inertia ratio and thermal toughness are some of the salient advantages of SRM. However, the SRM has not gained prominent importance in many practical applications, because of its few disadvantages like large torque ripple, acoustic noise and proper design. In this paper, the step by step design procedure of SRM is explained based on the previous literature available, for preliminary design. Finally the over all modifications and validations are carried out using finite element methods .Based on the design validations a proto type has been developed for automobile application .The experimental method verification of the motor winding inductance at different rotor positions from un-aligned to aligned position and ,the static flux linkage characteristics are also presented as they play an vital role in design verification and performance calculation of an switched reluctance motors (SRM's). The simulation results are having good conformity with the experimental results. ©2010 IEEE.
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    Rotor position estimation and design of low cost controller circuit for switched reluctance motor based on machine design parameters
    (2010) Yaragatti, Udaykumar R.; Shaik, A.A.; Deepika, K.S.R.
    An efficient and reliable operation of the Switched Reluctance Motor (SRM) can be achieved only by proper estimation of the rotor position. The rotor position information in switched reluctance motor (SRM) drives is essential for generating the proper firing sequence and for controlling the speed of the drive. Also SRM drives in recent days are more expensive than their conventional AC and DC drives. This is to a great extent caused by the lack of a standardized power electronic converter for SRM drives. This paper describes a new and simple method for determining the rotor position of a switched reluctance motor (SRM) based on motor design structure and a design of low cost converter for low and high speed operations. The scheme is successfully implemented with minimum number of switching devices and position sensors to control the speed of the switched reluctance motors in both the direction. This controller executes controller algorithms via micro-controller to generate SRM driving signal. �2010 IEEE.
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    Rotor position estimation and design of low cost controller circuit for switched reluctance motor based on machine design parameters
    (2010) Uday Kumar, R.Y.; Shaik, A.A.; Deepika, K.S.R.
    An efficient and reliable operation of the Switched Reluctance Motor (SRM) can be achieved only by proper estimation of the rotor position. The rotor position information in switched reluctance motor (SRM) drives is essential for generating the proper firing sequence and for controlling the speed of the drive. Also SRM drives in recent days are more expensive than their conventional AC and DC drives. This is to a great extent caused by the lack of a standardized power electronic converter for SRM drives. This paper describes a new and simple method for determining the rotor position of a switched reluctance motor (SRM) based on motor design structure and a design of low cost converter for low and high speed operations. The scheme is successfully implemented with minimum number of switching devices and position sensors to control the speed of the switched reluctance motors in both the direction. This controller executes controller algorithms via micro-controller to generate SRM driving signal. ©2010 IEEE.