چکیده (انگلیسی):

This study details online speed regulation of DC motor using PWM technique based on LabVIEW. A fuzzy
logic controller is designed to change the pulse width of switching signal applied to the converter and
thereby the voltage fed to the armature of the separately excited DC motor to regulate the speed. The
proposed system is connected to the server computer using a Data Acquisition Card (DAQ) and the server
computer is configured to access remote client computer using Web publishing tool in LabVIEW. Now the
speed of the DC motor can be controlled by a remote client computer with Internet connection. Laboratory
Virtual Instrument Engineering Workbench (LabVIEW) is a graphical programming environment for
creating custom applications that interact with real-world data or signals in fields such as science and
engineering. The proposed online control system has been implemented to control the speeds of two
different motors and the experimental results are plotted. The conventional controllers need design
objectives such as steady state and transient characteristics of the closed loop system to be specified. But the
designed fuzzy logic controller overcomes the problems with uncertainties in the plant parameters. The
proposed online control technique saves time and reduces the manpower.