Metody sterowania silników BLDC

The paper presents the review of controlling methods for BLDC motors. The construction of BLDC motors, the manners of determination of the stator position with the use of sensors have been widely illustrated on the examples. The paper contains thorough description of sensor less controlling methods. In these methods the position of rotor is estimated on the basis of BFEM, mathematical models, currents and voltages measurements being aided with fuzzy logic and neural networks. The estimation of the position of stationary rotor is hard to realize, thus HPI method or sequence of switching and monitoring of current pulses are used. At linear magnetic circuit, the initial estimation of rotor position and motor start in open loop circuit is performed. At present, the simple circuits equipped with position sensors are the cheapest and reliable solution.