DESIGN AND PERFORMANCE ANALYSIS OF THREE PHASE SENSORLESS BLDC MOTOR FOR UNMANNED AERIAL VEHICLE APPLICATION

The advantages of Brushless DC (BLDC) motors are high efficiency, capable of operating at high speeds, easy maintenance, and high torque. Core material and stator winding are important things to consider in designing of this motor. The stator core is generally made of silicon steel with a material thickness of about 0.1 mm. However, this material is not easy to find in the Indonesian market. Therefore, this research presents the design process of a BLDC motor prototype using materials available in the Indonesian market. The simulation uses Finite Element Analysis (FEA) method to determine the electromagnetic parameters of the model. Meanwhile, the prototyping process is done manually by utilizing the original rotor and its frame. Due to the small size of the motor, torque measurements are made using a lab made torque meter. Testing is done by comparing the performance of the prototype with the original motor. The efficiency parameter obtained from the prototype is 13.57% of the efficiency of the original motor.