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Search results for: harmonic
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Year: 2009, Volume: 9, Issue: 3
... M., Graur, I., Milici, D. L., "Induction Motor Speed speed trim configuration with vector controlled frequency Estimator Using Rotor Slot Harmonics", Advances in Electrical and Computer Engineering, ISSN 1582-7445, e-ISSN 1844-7600, vol. 9, converters. The proportional load sharing controller is used no ...
Year: 2009, Volume: 9, Issue: 3
... rotor is another Figure 2. Electro-mechanical Battery under design. important parameter. Surface mounted permanent magnet machines are suitable because of higher energy density and TABLE I lower harmonic production [17]. The final important UNDER DESIGN EMB PARAMETERS parameter to select a proper structure is the pole numbers. Output Charge/discharge Min Max ...
Year: 2009, Volume: 9, Issue: 2
... , is obtained for N= 1, and is given by: The total harmonic distortion (THD) of the Gm 0max= Gm 14= 16 I ... ; HD3 3 Vin 2 (14) 2 a1 4 a1 Since the even harmonics are cancelled (according to (9 )), in the following only ...
Year: 2009, Volume: 9, Issue: 2
... The soil structure is an important parameter that affects accurate for basic frequency, but not so exact for higher the level of the interference problem. The paper investigates harmonics. [5] 82 Digital Object Identifier 10.4316/AECE.2009.02013 Advances in Electrical and Computer Engineering Volume 9, Number 2, 2009 To avoid mathematical difficulties, ...
Year: 2009, Volume: 9, Issue: 2
... amplitude. It can be observed that in the T2= sin δ 3V2 proposed drive, there is a significant reduction in torque and flux ripples. Hence the harmonic distortion can also reduce. Hence: This can be observed from Fig. 6-a for the locus of stator T0= T7= 0.5(Ts T1 T2 ...
Year: 2009, Volume: 9, Issue: 2
... 2D MODEL RESULTS FOR ALUMINUM AND bars and in the end rings: COPPER CAGE MACHINES PJ2= Pbars+ Prings (8) By solving the 2D magneto- harmonic field problem The active power dissipated in the rotor bars Pbars is using the Flux professional software package, we obtain the computed by integrating the volume density of ...
Year: 2009, Volume: 9, Issue: 2
... ] for the fundamental because it is edged by greater lengths of magnetic circuits. harmonic has the following expression: The magnetization reactances are determined by three methods, ... due consequence, relation (3) will be modified as following: to superior harmonics and the magnetic field. X m= 2πf1 μ 0 (2wb ) ...
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: 2009, Volume: 9, Issue: 2
... User manual, Hameg Instruments [15] F. Z. Peng, "Harmonic Sources and Filtering Approaches," IEEE for conducted emissions is 30MHz). ... exits the product. band pass is not an issue here. These power line harmonics Sometimes, properly designed transformers can provide furnish no power to the load, ...
Year: 2009, Volume: 9, Issue: 1
... PWM converter, digital control, microcontroller, simulation, harmonic distortion generation of the command signals for the transistors ... . [9] B.Justus Rabi, '’ Minimization of Harmonics in PWM Inverters Based on Genetic Algorithms'’, Journal ... MODULATION STRATEGY USED FOR through the addition of the 17-percent third-harmonic INVERTERS COMMAND component to the original sine reference. ...
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