Brushless DC Motor (BLDCM) overcomes many problems
of the brush DC Motor and has been widely applied in various
fields [1].The development of BLDCM control system requires
reliable operation, excellent performance of control algorithm,
low cost and short development cycle. Establishing effective
and simple simulation model of BLDCM control system can
test the control algorithm, effectively reduce the time and cost
of the system development and has important value to research
the control algorithm. MATLAB/Simulink is a modeling and
simulation software widely used. In Simulink modeling
environment, the modular modeling method conveniently, and
the system function (S-function) model can direct reflect the
mathematical model.