Speed Control of Brushless DC Motor Using PLC

Brushless DC motor (BLDCM) is a high performance, low maintenance cost, adequate torque, high speed, high reliability motor and widely used in industries having several advantages over other type of motors. The reason of popularity is due to its simpler speed control with enhanced performance by the use of electronic commutation. The above mentioned characteristics and properties of BLDC motor provide a large research domain in Electrical drives. This paper presents an idea how to automate the speed control of throttle based brushless dc motor with the help of Programmable Logic Controller and monitor its real time behavior using SCADA and microcontrollers. SCADA (supervisory control and data acquisition) is a type of industrial control system (ICS). Industrial control systems are computer controlled systems that monitor and control industrial processes that exist in the physical world. A microcontroller often serves as the “brain� of a mechatronic system. Like a mini, self-contained computer, it can be programmed to interact with both the hardware of the system and the user.