International Journal of Advanced Computing and Communication Systems

PLC Based Sensorless Speed Control of Polyphase Induction Motor for Process Industries

Mohan Raj C, Hemananth B, Raj Thilak K, Prem Kumar R, Department of EEE, Sri Eshwar College of Engineering, Coimbatore, TamilNadu, India.

International Journal of Advanced Computing and Communication Systems

ISSN (Online) : 2347 - 9299

ISSN (Print) : 2347 - 9280

Received On :

Revised On :

Accepted On :

Published On :

Volume 04, Issue 02

Page No : 029-032

Abstract

Accurate Speed control of high power rating induction motor is the challenging task in the today industries. The efficient speed control method is achieved by proper generation of speed reference and PWM gate signals for the inverter. Fast dynamic speed control can be achieved by using the Programmable Logic Controllers (PLC). PLC generates the control voltage signal based on the speed reference value. The actual speed of the motor is compared with the set speed. Based on the error values, PLC analog modules generate the control voltage signals. Motor actual speed is sensed from VFD analog output port. This type of control is known as sensor less control. This control signal alters the PWM pattern of the VFD. V/F control logic is implemented in the VFD the for speed control operation.

Keywords

Speed control of Induction Motor- V/F control – PWM generation – Speed set point – PLC analog modules – Speed error- control voltage generation – Sensor less control of Induction Motor.

Cite this Article

Mohan Raj C, Hemananth B, Raj Thilak K, Prem Kumar R, “PLC Based Sensorless Speed Control of Polyphase Induction Motor for Process Industries, "International Journal of Advanced Computing and Communication Systems, pp. 029-032, July, 2017.

Copyright

© 2017 Mohan Raj C, Hemananth B, Raj Thilak K, Prem Kumar R. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.