An Efficient Simulation Technique for the Variable Sampling Effect of BLDC Motor Applications

This paper proposes a variable sampling simulation method using SIMULINK for brushless DC motor (BLDC) drives with low-resolution position sensors (Hall sensors). Variable sampling is an interesting and important topic in discrete-time robust control. Nevertheless, there is no suitable simulation tool for the BLDC motor drive to simulate variable sampling. We present three subsystems for variable sampling simulation: the first is continuous time model of BLDC motors, the second is variable sampling trigger, and the next is discrete time speed with variable sampling time constant estimator. Based on the variable sampling simulation method using SIMULINK, the simulation and implementation of variable sampling robust control will become more easily.