DIRECT DIGITAL CONTROL OF PERMANENT MAGNET BLDC MOTOR FOR AIR CONDITIONING

This is a design project which to design a direct digital control of permanent magnet
BLDC motor for air conditioning. Mainly the task ofthis to developed a control to the
speed of BLDC motor that will determine the speed of compressor inside in an airconditioner.
The project is divided into two main tasks; the simulation part and
circuitry part. This report will delivered results, discussion and feedbacks of the both
parts that had been handled. The simulation is build inside MATLAB/SIMULINK
while the circuitry part is built by using equipments of Lab-Volt. It composed from
blocks that are mainly based on calculation or theoretical value. So it is completely
logical blocks and shall not interface with other Power Electronic block set
components inside MATLAB. From here the author learns relationship between
Sensoriess BLDC motor and BLDC motor with Hall Sensor. In circuitry part, the
IGBT inverter by supplying PWM control signals. From here the author learns that
the output voltage depends on switching process and the DC input. Due to lots of
advantages deliver by BLDC motor, this project brings a lot of benefit.