Design of a microcontroller-based converter for 3-phase brushless dc motor drives
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Date
2009-09
Authors
Mohd Nayan, Norkharziana
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Abstract
In industrial application and medical devices, it can be seen that there is a need of
controlling the devices or machines with observation of the output process and input control
from a computer. Presently, machines control is located on the devices casing as it may require
control and observation from the operator from time to time. By utilizing the features of
microcontroller, operation and monitoring the process control can be done far away from the
operating equipment. In the mean time, operator can observe the performance of the equipment
by just using the computer. Furthermore, if the process control contains hazardous material, a
long distant controller may be useful for the application of this drive system. The
microcontroller-based converter system design for 3-phase BLDC motor drives has been
proposed in this research in order to create better solution for long distance control and provides
another selection of motor drives system. The designed motor drives system has the advantages
of minimum hardware requirement, low-cost system implementation and c~ble of performing
variant pulse control switching schemes. The designed system also provides speed controls
accuracy and good response to the drive system. The input and output of the motor can be
controlled on the drives and observed by using HMI-based computer software. Further analysis
on the sample of PWM switching scheme has been made using the converter system. This
research has shown that the selected switching scheme can be used to drive the 3-phase BLDC
motor while the speed adjustment can be easily made. The experimental results obtained
describe the effects of the 3-phase BLDC motor performance when driven with a sample of
PWM switching scheme.
Description
Keywords
A need of controlling the devices or machines with observation of , the output process and input control from a computer.