Efficient modelling for a brushless DC motor drive

To limit the cost incurred in repeated prototyping of both the motors and inverters in a brushless DC (BLDC) motor drive system, a cost efficient simulation of the system at the design stage is desirable. The proposed mathematical model, developed in the de facto industry standard MATLAB environment, allows design engineers a quick investigation into the performance of the system when variations such as load or sampling rate of the digital controller occur. A user-friendly interface to the input of simulation parameters has been incorporated. The modular approach adopted facilitates program maintenance and further development. Some simulation and validating results are included.<>