Three phase induction motor inverter application for motion control
The aim of this project is to become familiar with the operation and use of the Toshiba VFFS1 Inverter to reduce motor starting current and also to improve on the quality of the motion executed motor-driven equipment. Various methods exist to reduce the high starting currents of three phase inductio...
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| Format: | Thesis |
| Published: |
2008
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/834/ http://eprints.uthm.edu.my/834/1/24_Pages_from_THREE_PHASE_INDUCTION_MOTOR_INVERTER_APPLICATION_FOR_MOTION_CONTROL.pdf |
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| Summary: | The aim of this project is to become familiar with the operation and use of the
Toshiba VFFS1 Inverter to reduce motor starting current and also to improve on the
quality of the motion executed motor-driven equipment. Various methods exist to
reduce the high starting currents of three phase induction motors. A low starting current
not only reduces stresses on the power utility but also decreases stresses on the motor
and the driven equipment. As designed, inverters can reduce the starting current,
especially by programming the motion to follow a trapezoidal or s-curve profile. A
trapezoidal motion profile reduces jerky motion while the s-curve profile totally
eliminates it. The challenge in motion control is always how to achieve precise motion
with minimum jerk, and overshoot in position as well as velocity. There are four
methods that can be used to connect the inverter to a motor, namely, by control panel,
using a controller computer, remote terminal box, or a PLC. A number of induction
motors were tried with the inverter to observe their response to the different motion
profiles programmed into the inverter. The results are reported and discussed in this
work. |
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