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Three phase induction motor inverter application for motion control

Abdul Ghani , Mohd Rusmi (2008) Three phase induction motor inverter application for motion control. Masters thesis, Universiti Tun Hussein Onn Malaysia.


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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.

Item Type: Thesis (Masters)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Depositing User: Ms Aryanti Ahmad
Date Deposited: 07 Apr 2011 00:26
Last Modified: 29 Apr 2011 06:42
URI: http://eprints.uthm.edu.my/id/eprint/834
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