Citation
Razali, Ramdan (2012) V/I Control Method and Its ANN Implementation for Maximizing Attainable Efficiency of Induction Motor. PhD thesis, Multimedia University. Full text not available from this repository.Abstract
In this thesis, a technique based on V/I maximum attainable efficiency method is proposed for operating an IM with V/f controller at maximum attainable efficiency at partial loads. The technique requires estimation of V/I reference value (V/I) corresponding to maximum attainable efficiency at a given load using IM equivalent circuit parameters. Analysis and theoretical validation of the technique has been carried out using IM equivalent circuit. Experiments were carried out in the laboratory using a PWM inverter fed fractional horsepower SCIM with a V/f controller (specially developed and fabricated) at a few selected loads at rated frequency. The supply voltage to the SCIM was varied for the selected loads and the corresponding V/I values were calculated by measuring V and I at stator terminals. The efficiency for various values of V/I were plotted for the selected loads. It has been found from the graphs that for a given load, the maximum attainable efficiency occurs at a value of V/I closer to the calculated (V/I)ref. The results thus validate the concept proposed.
Item Type: | Thesis (PhD) |
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Additional Information: | Call No.: TK2785 R36 2012 |
Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
Divisions: | Faculty of Engineering and Technology (FET) |
Depositing User: | Ms Nurul Iqtiani Ahmad |
Date Deposited: | 16 Jun 2014 02:21 |
Last Modified: | 16 Jun 2014 02:21 |
URII: | http://shdl.mmu.edu.my/id/eprint/5582 |
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