Investigating And Simulating Thyristor Based Speed Control on Real Time-Flame in A DC Motor

Abstract

It has been established that a DC motor is any motor which can convert DC power to mechanical power. However, their precise speed regulation characteristics is what differentiates this type of motor from other electric motors, direct current motors are mostly used in the industries because of their good energy converting efficiency, fine speed control, low-cost characteristic and compact size. The problem stated in this research work is that which is connected with an electronics device called “thyristor”, thyristor have a problem of excessive heating when been installed in an electric circuit. A system has been designed to reduce the excessive heating when carrying out thyristor installations in the circuit. The aim of this research work is investigating and simulating thyristor-based speed control on real time-flame in a dc motor. The technique adopted in this research work is “Armature Voltage Control Method,’ armature voltage control method has to do with the process of controlling or regulating the voltage from the power supply to the DC motor. However, by regulating the supply voltage the speed of the direct current motor will also be reduced. Models were developed to determine or model DC motor of size 4HP and a system single phase rated voltage of 230V and the DC motor speed of 1480RPM was used. This was achieved with a tool called MATLAB/Simulink. Real time results were shown, tables of motor parameters were drawn and graphs gotten from the tool used in (MATLA/Simulink) environment were presented. In conclusion, this research work has demonstrated that an electronics device called “thyristor” can be use in regulating direct current motor speed.