Speed Control of Induction Motor using Cycloconverter

 International Journal of Engineering Trends and Technology (IJETT) © 2013 by IJETT Journal Volume-4 Issue-4 Year of Publication : 2013 Authors : B. SAI SINDURA , B. N . KARTHEEK

B. SAI SINDURA , B. N . KARTHEEK . "Speed Control of Induction Motor using Cycloconverter". International Journal of Engineering Trends and Technology (IJETT). V4(4):776-780 Apr 2013. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract

This method is used to control the speed of the induction motor .The speed control by this method is simple and can be made economical by using different methods to control the operation of cycloconverter which in turn controls the performance of motor. The formula for speed for induction motor is Ns=120f/p. from this formula we can conclude that the speed of the motor can be varied in two ways, one is by changing the number of poles and the second method is by changing the frequency. The speed control through the first method is uneconomical and the number of poles can’t be varied under running conditions and the size of the machine also becomes bulky. These problems can be overcome by the second method. In this method the frequency can be varied under running conditions also and there is no change in the size of the motor. In this method the frequency changing device is cycloconverter. A cycloconverter is a power electronic device used to convert constant voltage constant Frequency AC power to adjustable voltage adjustable frequency AC power without a DC link . In among all the methods this method is simple, reliable and economical. The var ious speed of induction motor is obtained by varying the supply frequency by using cycloconverter

References

1. Vinamra Kumar Govil, Yogesh Chaurasia “Modeling & Simulation of PWM Controlled Cycloconverter FED Split Phase Induction Motor” Int ernational Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering, Vol. 1, Issue 3, September 2012.
2. E A Lewis “Cycloconverter Drive Systems” Power Electronics and Variable Speed Drives, Conference Publication No. 429, IEE E , 1996.
3. Abhishek Pratap Singh, V. K. Giri “Simulation of Cycloconverter Fed Split Phase Induction Motor” International Journal of Engineering Science and Technology, Vol. 4, No.01, January 2012, pp. 367 - 372.
4. Abhishek Pratap Singh, V.K. Giri “Modeling and Simulation of Single Phase Cycloconverter” International Journal of Engineering Science and Technology, Vol. 2, Issue – 2, March/April, 2012, pp. 346 - 351.

Keywords
Cycloconverter, Split Phase Induction Motor