Fast Fault-Tolerant Control for Improved Dynamic Performance of Hall-Sensor Controlled Brushless DC Motor drives

In this project an improved fast FTC (FFTC) that obtains fast identification and compensation of asynchronous or simultaneous faults of up to two Hall sensors. The proposed FFTC method is validated experimentally and shown to maintain continuous operation even under extreme dynamic accelerations and sudden load variations, which are the advantages over alternative FTC methods. The Hall-sensor-controlled brushless DC (BLDC) motors are often considered in low-cost applications due to their simplicity of control and good performance in a wide range of operating conditions and speeds, where they still may be preferred over more complicated sensor less control. The simulation results can be evaluated by using Matlab/Simulink Software.

Keywords: Brushless DC (BLDC) motor, dynamic coefficient, fault diagnosis, fault tolerant control (FTC), Hall sensors, Hall signals fault.