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Search results for: harmonic
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Year: 2009, Volume: 9, Issue: 1
... Kalman, Luenberger) of induction machine rotor speed utilizing harmonic saliencies estimators using artificial intelligence. created by rotor ... 1, 2009 Induction Motor Speed Estimator Using Rotor Slot Harmonics Gabriela RAŢĂ1, Mihai RAŢĂ1, Iulian GRAUR2, ... and improved schemes estimators using spatial saturation stator-phase third the slot-harmonic frequencies 14x50x0.988 – 5x50= 442 harmonic voltages Hz ...
Year: 2008, Volume: 8, Issue: 2
... μ( i, j)= s n description is sufficient, which contains only several (not a ij and the number of levels more than five) harmonics. i =1 c In simplified manner the process of perception of sensor k=( 3 p+ 2) where c=0 ,1 , ...
Year: 2008, Volume: 8, Issue: 1
... / Electrical Power Systems Department, Cluj-Napoca, Romania Abstract — The importance of the harmonic analysis and its frequent utilization in different applications impose a complete accuracy. The ... Number 1 (29), 2008 Correct Application of the Discrete Fourier Transform in Harmonics V. MAIER, S. Gh. PAVEL, C. D. ...
Year: 2007, Volume: 7, Issue: 1
... If the circuits of radiated sources are supply by the non-harmonic currents, then the superposition Figure 1. Investigated ... scheme method of individual harmonic components of Fourier series is necessary to apply for the resulting vectors E and H ... 1. Coefficients of Fourier series for transistor current iC Harmonics Harmonics Harmonics Harmonics Harmonics 0 1 2 3 4 ...
Year: 2007, Volume: 7, Issue: 1
... relations (25), (26) Power System Harmonic Studies, Proceeding (409) Power and and ... transformer 21/0 ,4-0,9 kV having harmonics the power of 60 MVA. The electric resistance ... fundamental frequency and 0 we thereby brought into relief the inter-harmonics. This is particularly useful as in reality the ...
Year: 2007, Volume: 7, Issue: 2
... the Ulin Ulin Urec other connection type. For more conclusive results, the V harmonic content of generated voltage and current under A B C different working conditions has ... hybrid synchronous generator (H.S.G.), star A connection, delta connection, harmonics analyses I. INTRODUCTION a. star connection The studied H.S.G. includes two ...
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: 2007, Volume: 7, Issue: 2
... coefficients of the current spectrum or the power spectrum as an indication of how the harmonic content of a signal varies. If the variation of the harmonic content can ... Conference Record of 2000 Annual Meeting, pp. 205-211. confirm the presence of harmonics as described by (1). [9] W.T. Thomson, ...
Year: 2007, Volume: 7, Issue: 2
... ) "powergui" from Matlab, we notice that the total distortion of the harmonic current (THD) does not exceed 8.7%, the Figure 8. ... Erickson R., Self-Tuning Digitally and zeros without using any other conversions: Controlled Low-Harmonic Rectifier Having Fast Dynamic Response, z 1 IEEE Transactions on Power Electronics vol.18 ...
Year: 2007, Volume: 7, Issue: 2
... and the allowable leakage current should be exceeding 72dBμV (20dBμV in plus), at the carrier specified. The electrical specification must comply with frequency and its odd harmonics, both on the L and the N national safety standards. conductors (fig. 2). Filters work on the principal of providing a large The ...
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