Four Quadrant Operation of BLDC Motor in MATLAB/SIMULINK

Brush less Direct Current (BLDC) motors are one of the motor types rapidly gaining popularity. BLDC motors are used in industries such as Appliances, Automotive, Aerospace, Medical, Industrial Automation Equipment and Instrumentation. BLDC motor with matching servo amplifiers offer many features than other motion control systems, like broader speed range, operation in special environments and mechanical advantages. Brush less dc motor and servo amplifier therefore presents a complete line of compatible, latest technology of brush less system components. In this paper, the modeling of Brush less DC motor drive system along with control system for speed and current has been presented using MATLAB / SIMULINK. In order to evaluate the model, various cases of simulation studies are carried out. Test results thus obtained show that, the model performance is satisfactory.