156 results found.
Year: 2011, Volume: 11, Number: 1
... s (k) (10) and sensor i, the matrix P is an m n sized matrix, a collection of impulse responses, describing the acoustic coupling of the enclosure. where Y s (k)= y1 s s (k ), y2 s (k ), .. yn (k) ...
Terms matched: 1 - Score: 3 - 807k
Year: 2011, Volume: 11, Number: 1
... Advances in Electrical and Computer Engineering Volume 11, Number 1, 2011 Measured quantities were line currents, neutral conductor current and grid voltages at the point of common coupling (PCC). The short-circuit current (ISC) at the PCC of the Computer centre was ISC=6kA. Measurement was conducted throughout 7 days, ...
Terms matched: 1 - Score: 3 - 851k
Year: 2011, Volume: 11, Number: 1
... , s is relative slip, b is base Ts speed, k s € M/ Ls and k r € M/ Lr are stator and rotor 1 coupling coefficients, Ts' € bLr/ Rs and Tr' € bLr/ Rr nr € b 2 € s 2 e. (15) Tr'2 ...
Terms matched: 1 - Score: 3 - 793k
Year: 2011, Volume: 11, Number: 1
... inc E scat Array of signal. The dynamic range of the reported imaging systems Dipoles is more than 120 dB [1]. In many microwave tomographs a coupling medium between the antennas and the body is introduced in order to avoid strong reflections from the air/skin interface. Therefore the patient orientation for these systems ...
Terms matched: 1 - Score: 12 - 654k
Year: 2011, Volume: 11, Number: 1
... 2 2 effect which can be computed assuming the current I f p € fs 2 flowing through the red wire and I/2 currents flowing -computation of the coupling coefficient k € 2, fp through the blue wires. Computing the magnetic energy Wm it follows that the parasitic inductance is Lp= 2 Wm/I2 ...
Terms matched: 1 - Score: 3 - 940k
Year: 2010, Volume: 10, Issue: 4
... and rotor voltages Vdr and V qr respectively. The coupling term variable pulsations respectively; Vdq, I dq ... CONTROL STRATEGY OF THE DFIG DFIG PCC+ A. Decoupling of the active and reactive powers Gear In an ... and I qr the magnetizing inductance. ž is the coupling-axes matrix The electromechanical equation is expressed by: are ...
Terms matched: 3 - Score: 14 - 1,152k
Year: 2010, Volume: 10, Issue: 4
... top is plotted in Fig. 13. Again, as in simulations (Fig. 8 and 11), it describes an almost perfect circle due to the decoupling between the sampling period of the control system and the switching period of the inverter. Fig. 11 The locus of stator flux space vector top for simplified ...
Terms matched: 1 - Score: 3 - 1,957k
Year: 2010, Volume: 10, Issue: 4
... . This means that DG unit has most effect on DG cell (FC) hybrid system increases the voltage in its point of bus (PCC). common coupling (PCC) and other buses in distribution network[7]. The voltage change depends on the network configuration under load conditions, and it is related ...
Terms matched: 1 - Score: 3 - 1,987k
Year: 2010, Volume: 10, Issue: 4
... Es s s r € u s € Rs i s € Ls. s (5) avoided. Secondly, the rotor flux orientation avoids cross- dt coupling blocks in the d and q current regulators. The only Estimated back-emf, and as well all the variable used in (5 ), disadvantage is the ...
Terms matched: 1 - Score: 3 - 2,453k
Year: 2010, Volume: 10, Issue: 4
... the way of the light beam adjustment, Fig. 2. performing the optical coupling. This system of filters allows the mechanical modification of the optocoupler output parameters ... element London, GB, 1985. and can be caused by optical and mechanic couplings. [3] G. Raţƒ, M. Raţƒ, I. ...
Terms matched: 2 - Score: 8 - 840k