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Digital Library

of the European Council for Modelling and Simulation

 

Title:

A Novel Control Of AC Voltage Controller Under Induction Motor Load

Authors:

Ali M. Eltamaly, A. I. Alolah, R. Hamouda, M. Y. Abdulghany

Published in:

 

(2009).ECMS 2009 Proceedings edited by J. Otamendi, A. Bargiela, J. L. Montes, L. M. Doncel Pedrera. European Council for Modeling and Simulation. doi:10.7148/2009 

 

ISBN: 978-0-9553018-8-9

 

23rd European Conference on Modelling and Simulation,

Madrid, June 9-12, 2009

Citation format:

Eltamaly, A. M., Alolah, A. I., Hamouda, R., & Abdulghany, M. Y. (2009). A Novel Control Of AC Voltage Controller Under Induction Motor Load. ECMS 2009 Proceedings edited by J. Otamendi, A. Bargiela, J. L. Montes, L. M. Doncel Pedrera (pp. 798-804). European Council for Modeling and Simulation. doi:10.7148/2009-0798-0804

DOI:

http://dx.doi.org/10.7148/2009-0798-0804

Abstract:

A novel, simple and reliable digital firing scheme has been implemented for soft starting and speed control of three-phase induction motor using ac voltage controller. The system consists of three-phase supply connected to the three-phase induction motor via three triacs and its control circuit. The ac voltage controller has three modes of operation depending on the shape of supply current. The performance of the induction motor differs in each mode where the speed is directly proportional with firing angle in two modes and inversely in the third one. So, the control system has to detect the current mode of operation to choose the correct order for the firing angle of triacs. Three sensors are used to feed the line currents to control system to detect the mode of operation. The control strategy is implemented using a low cost Xilinx Spartan-3E field programmable gate array (FPGA) device. Three PI-controllers are designed on the FPGA to control the system for the three-modes. Simulation of the system is carried out using PSIM computer program. The simulation results show stable operation for different loading conditions especially in mode 2/3. The simulation results have been compared with the experimental results from laboratory prototype.

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