The effect of harmonic phase angle on the operation performance of a three-phase induction motor

2002 ◽  
Author(s):  
Ching-Yin Lee ◽  
Yuan-Jui Lin ◽  
Chao-Rong Chen
Keyword(s):  
Induction Motor ◽  
Phase Angle ◽  
Operation Performance ◽  
Harmonic Phase ◽  
Three Phase

scholarly journals The impact of supply phase shift on the three phase induction motor operation

2019 ◽  
Vol 39 (3) ◽  
pp. 270-282 ◽  
Author(s):  
Aderibigbe Adekitan ◽  
Ayodeji S. O. Ogunjuyigbe ◽  
Temitope R. Ayodele
Keyword(s):  
Phase Shift ◽  
Induction Motor ◽  
Phase Angle ◽  
Positive Sequence ◽  
Test Results ◽  
Three Phase ◽  
Sequence Components ◽  
Angle Shift ◽  
Motor Operation ◽  
The Impact

The performance of a three-phase induction motor operating under supply unbalance conditions has been the focus of many research works using various methods. Most of the studies have focused majorly on voltage magnitude unbalance without due analysis to determine the effect of deviations in the supply phase angle from the 120° phase to phase displacement. This research investigates the significance of supply phase shift on the performance of a three-phase induction motor by applying a novel phase shift unbalance definition to the zero, negative and positive sequence components model of the motor. The test results reveal that when both phase angle shift and voltage magnitude unbalance occur simultaneously during motor operation the effect of the phase shift dominates over the effects of the voltage magnitude unbalance. This study shows that phase angle unbalance has a severe consequence on three phase motor performance.

Advance Protection for Three Phase Induction Motor using Microcontroller Atmega32

2018 ◽  
Vol 8 (1) ◽  
pp. 172
Author(s):  
Karan S Belsare ◽  
Gajanan D Patil
Keyword(s):  
Induction Motor ◽  
Low Cost ◽  
Short Circuit ◽  
Cost Factor ◽  
Protection Scheme ◽  
Three Phase ◽  
The Cost

A low cost and reliable protection scheme has been designed for a three phase induction motor against unbalance voltages, under voltage, over voltage, short circuit and overheating protection. Taking the cost factor into consideration the design has been proposed using microcontroller Atmega32, MOSFETs, relays, small CTs and PTs. However the sensitivity of the protection scheme has been not compromised. The design has been tested online in the laboratory for small motors and the same can be implemented for larger motors by replacing the i-v converters and relays of suitable ratings.

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