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Efficiency Optimization of Induction Motor Drive

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IJCA Proceedings on National Conference on Innovative Paradigms in Engineering & Technology 2013
© 2013 by IJCA Journal
NCIPET2013 - Number 4
Year of Publication: 2013
Authors:
Manjusha Sahu
P. K. Choudhary

Manjusha Sahu and P K Choudhary. Article: Efficiency Optimization of Induction Motor Drive. IJCA Proceedings on National Conference on Innovative Paradigms in Engineering & Technology 2013 NCIPET 2013(4):34-38, December 2013. Full text available. BibTeX

@article{key:article,
	author = {Manjusha Sahu and P. K. Choudhary},
	title = {Article: Efficiency Optimization of Induction Motor Drive},
	journal = {IJCA Proceedings on National Conference on Innovative Paradigms in Engineering & Technology 2013},
	year = {2013},
	volume = {NCIPET 2013},
	number = {4},
	pages = {34-38},
	month = {December},
	note = {Full text available}
}

Abstract

Induction motors are extensively used in industrial and household appliances and consume more than 50% of the total generated electrical energy. The need for energy conservation is increasing the requirements for saving the electrical energy. It is therefore important to optimize the efficiency of electrical drive systems under light load condition. This paper proposes a control scheme based on search method taking advantage of the fact, that at a certain torque and speed (operating point) there is only one set of voltage & frequency that operates the motor at optimum efficiency. Utilizing equivalent loss model of induction motor, expressions of Vopt , Fopt are derived mathematically. Both simulation & experiment results indicates the efficiency performance with VVVF is superior to that of V/F operation in steady state and light load conditions. Future work is also suggested that if incase any frequent transients comes in load side, the optimization schemes can be abandoned & V/F operation should be implemented till the steady state comes.

References

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