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Search results for: harmonic
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Year: 2010, Volume: 10, Issue: 3
... dry "High impedance fault detection utilizing incremental variance of 1.0065 1 normalized even order harmonic power", IEEE Transactions on Power fault soil at bus 7 High impedance ... should be noted that in the wavelet packet unsymmetrical behavior of HIF current, even harmonics are analysis, a1 and d1 are called node 1 and 2, respectively ...
82. Transformer Core Saturation Fault Analysis using Current Sensor Signals and Thermal Image Features
Year: 2023, Volume: 23, Number: 4
... 4.6 380 210 110.3 fundamental component, inrush current has equivalent magnitude in its second harmonic component and no other 1.75 operating condition possesses a significant magnitude in 4.7 272 ... and extract relevant information regarding inrush current Haralick features are used for differentiating transformer and harmonics [4]. Fault is detected using classification of core-based and load-based faults ...
Year: 2009, Volume: 9, Issue: 1
... [2-4], this solution reduces the magni- tude of the first order harmonic of cogging torque. In the electrical machine, where the structure is symmetric ... 8]. Using a fractional number of slots per pole is another of its harmonics should be reduced properly. In theory, the proposed method [2 ] ...
Year: 2018, Volume: 18, Number: 1
... and the first belt of the BC is elastic. The belts endure significant axial harmonic of input phase current are practically in phase. strain for two main reasons ... poor power exploitation period for the facility. factor and the presence of higher order harmonics.- Torque control of individual motors in a multi-motor Transistor-type, or active ...
Year: 2013, Volume: 13, Number: 2
... high order harmonics (Fig. 9). The most significant is the 17th harmonic but the 5th harmonic is unusual high despite the short-pitch stator winding. Finally ... others which are better pointed out by the Fourier analysis and content in high order harmonics (Fig. 9). The most significant is the 17th harmonic but ...
Year: 2010, Volume: 10, Issue: 2
... used by the PMSG is the Park Lm model. By considering only the fundamental harmonic of= Average magnetic inductances the flux distribution in the air-gap of the machine ... by 0  inverter do not include harmonic components. These  33  93 harmonics cause many unwanted phenomena such as noise UL; Line voltage of load, ...
Year: 2019, Volume: 19, Number: 2
... evaluated, ABC shows better performance in optimizing the controller parameters. Figure 17. Harmonic spectrum of current exchanged with the utility grid Figure 15. DC bus voltage ... LCL filer effectively system. The heuristic optimization techniques such as GA, filters the harmonics generated due to switching. The PSO, PSOd and ABC are used in ...
Year: 2007, Volume: 87, Issue: 2
... 800 1000 1200 [3] B. Heller, V. Hamata, "Harmonic field effects in induction machines", New York, Elsevier, 1977 Bgmax ... the researcher's attention for a very long time. The first flux density and corresponding harmonics due to the slot important results concerning the air-gap flux density in the openings ...
Year: 2022, Volume: 22, Number: 2
... . The TSNR recognition, mobile communications, health care, and voice technique introduces harmonic distortion in the enhanced activity detection, received a lot of attention over the ... by coloured or non-stationary background noises, with technique is utilized to regenerate the degraded harmonics examples including airplane, car, factory, and street noises. of the ...
Year: 2010, Volume: 10, Issue: 2
... "GA-Based estimated parameters. The GA method is able to estimate Optimization of Total Harmonic Current Distortion and Suppression parameters in high resolution. of Chosen Harmonics in Induction ... Optimization of proposed method is applicable in off line parameter THD and Suppressing Certain Order Harmonics in PWM Inverters estimation, according to robustness of GA optimization in using Genetic ...
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