نتایج جستجو برای: voltage drop

تعداد نتایج: 152278  

2013
S. R. A. Rahim I. Musirin M. M. Othman M. H. Hussain

Loss minimization is a long progressing issue mainly in distribution system. Nevertheless its effect led to temperature rise due to significant voltage drop through the distribution line. Thus, compensation scheme should be proper scheduled in the attempt to alleviate the voltage drop phenomenon. Distributed generation has been profoundly known for voltage profile improvement; provided that ove...

Journal: :Journal of the Illuminating Engineering Institute of Japan 1986

Journal: :مهندسی برق و الکترونیک ایران 0
m. ebrahimi m. moallem m.h. ershadi a.h. ebrahimi

in conventional direct torque control (dtc), the stator flux is usually kept constant by controlling the x-axis component of the stator voltage in the stator flux reference frame. the torque is then controlled by the y-axis component of stator voltage. in this scenario, the stator current does not exceed its permissible value. however, in the so-called optimal efficiency mode, the induction mot...

Journal: :Journal of the Korean Institute of Illuminating and Electrical Installation Engineers 2012

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده مهندسی برق و کامپیوتر 1391

many mobile and off-grid devices include electronics and other electrical consumers like servo drives, which need a quite low supply power. since the price for photovoltaic modules drops continuously, photovoltaic power supply is interesting in more and more applications. in solar powered systems, a battery is needed to store energy for the night and cloudy periods. the power electronics of suc...

2005
Guohong Li Eva Y. Andrei Xu Du Z. L. Xiao P. Shuk M. Greenblatt

We study the onset of motion of a vortex lattice in response to a driving current that is turned on suddenly. For sufficiently high currents we find that the average vortex velocity (obtained from the longitudinal voltage drop) grows smoothly with time and obeys a stretched exponential with an exponent β ~ 0.7. The response is governed by two time scales: a delay time (t0) before the appearance...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید