Modeling and Simulation Methods for Brushless DC Motor Drives

چکیده مقاله

The purpose of this paper is comprehensive modeling and simulation of Brushless DC (BLDC) motor drives with introducing their capabilities. Firstly, linear state-space modeling is presented. After that, because of attractive aspects of using the Field Oriented Control (FOC) for other types of AC machines lead the researchers to use it for modeling of trapezoidal BLDC drive systems. But, trapezoidal Back-EMF waveform of BLDC motor causes poor accuracy. FOC method along with Multiple Reference Frame (MRF) analysis is another solution to have more accuracy, but with more complicated equations and more time for simulation. Then, the functional simulation model via using Switching Function Concept (SFC) is studied. To obtain both steady state and dynamic performances by using the stator circuit equation and the motion equation, numerical modeling methods is explained. Finally simulation results SFC method are shown.