Design and Analysis of Soft Switching Variable Speed Drive

R. Venkatesh; Bala Krishnan N; Nivetha G; Sasikumar M; Selvakumar J

CALL FOR PAPERS : Dec-2024

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25-Dec-24

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Design and Analysis of Soft Switching Variable Speed Drive

Author(s):

R. Venkatesh , SNS COLLEGE OF ENGINNERING; Bala Krishnan N, sns college of engineering; Nivetha G, sns college of engineering; Sasikumar M, sns college of engineering; Selvakumar J, sns college of engineering

Keywords:

Chopper Pwm technique

Abstract:

DC Motor plays a vital role as drives in the Automation industries. The speed of the drives needs to be controlled according to its applications. Generally the speed control of DC motors is carried out in two ways namely Armature control and Field control methods. Armature control method is adopted while the speed of the drive is below rated speed and field control method for the above rated speed. The major drawback of the conventional speed control method is more power loss. Hence the efficiency of the drive will be reduced .To overcome these power losses and improve the efficiency of the drive, a soft switch based speed control of DC drives is proposed in this project. This project is carried out to design and analyse the soft switching variable speed drive for 5 HP DC Shunt motor. Type of speed control used in proposed system is armature voltage control and the type of speed drive is SCR based chopper. The duty cycle of the chopper drive is varied by PIC Microcontroller. Soft switching variable speed drive paves the way for modernization of speed control of DC motor. The proposed method of soft switch drive will provide fine variations of speed and power loss is eliminated.