PID Control of Brushless DC Motors without Sensors

[[abstract]]This paper performs the blushless DC motor control without a sensor by utilizing PID controller. In general, hall sensors and appropriate commutation circuits are required to implement the feedback control for blushless DC motors. However, mounting sensors is unsuitable in some situations, such as high temperature, corrosion environments, small space, etc. Therefore, in order to implement the control of blushless DC motors without sensors, this paper utilizes the average terminal voltage method to estimate commutation signals. The major parts of the implementation circuits have MicroChip dspic30F4011 and Cyntec IPM-13400.