Torque hysteresis controller for brushless dc motor drives
The presence of the commutator and brushes in a dc machine enforce severe limitations on its voltage and current ratings, means that the output power capability of a dc machine is restricted. The mechanical commutator in a dc machine limits its high speed capabilities. Both the brushes and...
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| Main Authors: | , , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2012
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| Subjects: | |
| Online Access: | http://eprints.utem.edu.my/id/eprint/9361/1/2012_Paper_TORQUE_HYSTERESIS_CONTROLLER_FOR_BRUSHLESS_DC_MOTOR_DRIVES.pdf http://eprints.utem.edu.my/id/eprint/9361/ |
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| Summary: | The presence of the commutator and brushes in
a dc machine enforce severe limitations on its voltage and
current ratings, means that the output power capability of a
dc machine is restricted. The mechanical commutator in a
dc machine limits its high speed capabilities. Both the
brushes and commutator of a dc machine require regular
maintenance. In addition, dc machines are prone to
sparking and cannot be normally used in explosive
atmosphere. The dust produced by brush wear, makes the
dc machine undesirable for use in certain industries like the
semiconductor or food industries. Thus, to overcome this
problem BLDC machine is proposed due to its advantages
over the conventional dc machine. The torque hysteresis
controller is presented as the technique chosen to control the
phase current and torque of the BLDC machine. This
method used to replace the voltage control in BLDC
machine. Voltage control is conventional methods used but
have a very high current overshoot, by using torque
hysteresis controller it will provide current protection which
is the value of current and torque will stay within certain
limits around with reference value |
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