5. CONCLUSIONS
Most approaches of implementing the velocity control algorithms
start with the model of the BLDC PM motor in (d,q)
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coordinates. The model in the (d,q) frame is a unique description
of an AC device, no matter of the number of phases.
Even so, the abc description is preferred under the simplifying
assumptions. The simplified model of the BLDC PM
motor is intended to be used in further design of the observer
based control. Having the description in terms of transfer
function or state space representation is considered a prerequisite
in starting also the identification based on estimation
methods. The paper present a fast and efficient way of reaching
a functional setup of BLDC PM motor velocity sliding
mode control. Getting efficient access to this workbench,
further work using the same DSC can be done in the area
of fault detection and isolation (FDI).