Results 251 to 260 of about 5,405,091 (300)

Capacitance-voltage profiling of quantum well structures

Journal of Applied Physics, 1996
Capacitance-voltage (C-V) analysis of high quality MBE grown quantum well samples shows that carrier distributions are averaged over the scale of the Debye length. This averaging process results in strongly temperature dependent C-V-deduced doping distributions that can be very different from the actual ones. The doping distribution of the structure is
Tschirner, B. M., MorierGenoud, F., Martin, D., Reinhart, F. K.   +3 more
openaire   +3 more sources

Characterization of flow and voltage profiles in planar electrochromatography

Journal of Chromatography A, 2005
Planar electrochromatography (PEC) is a new technology for thin layer chromatography (TLC) where the separation is driven by electroosmotic forces, not capillary action. This allows for much faster and more efficient chromatography in a planar format. Care needs to be taken when performing these experiments because voltage and flow characteristics can ...
Peter A, Tate, John G, Dorsey
openaire   +2 more sources

Voltage profile estimation and control of a distribution feeder

2008 IEEE/IAS Industrial and Commercial Power Systems Technical Conference, 2008
Monitoring the voltage profile of a distribution feeder can improve the reliability and quality of the distribution power system. However, economic constraints limit widespread deployment of monitoring equipment. This paper presents a method to estimate the voltage profile of a radial distribution feeder with limited number of monitoring points.
D.T. Chessmore, null Wei-Jen Lee, W.E. Muston, T.L. Anthony, F. Daniel, L. Kohrmann   +5 more
openaire   +1 more source

Voltage profile improvement through high voltage distribution system

International Conference on Sustainable Energy and Intelligent Systems (SEISCON 2011), 2011
The Power Requirement in urban and metro areas is very high with an exponential growth. The distribution system with LVDS results in multiple loads fed from a bulk power transformer resulting in higher regulation in the tail ends. Moreover there is an increase in the system losses, power factor and voltage profile leads to affect the performance of the
L. Ramesh, M. Madhusudhanaraju, S.P. Chowdhury, S. Chowdhury   +3 more
openaire   +1 more source

Optimal sizing and location of SPV (solar photovoltaic) based MLDG (multiple location distributed generator) in distribution system for loss reduction, voltage profile improvement with economical benefits

Energy, 2016
Majid Jamil
exaly   +2 more sources

Optimal designing of static var compensator to improve voltage profile of power system using fuzzy logic control

, 2020
The unbalanced and nonlinear characteristic of many loads connected to the power system can cause power quality problems, which in turn affects other consumers.
A. Naderipour, Z. Abdul-Malek, F. Gandoman, S. A. Nowdeh, Mohsen Aghazadeh Shiran, M. H. Moghaddam, Iraj Faraji Davoodkhani   +6 more
semanticscholar   +1 more source

Tidal In-Stream Generation with Improved PCC Voltage Profile

2012 IEEE PES Innovative Smart Grid Technologies (ISGT), 2012
While a variable speed, variable power turbine generator system is essential for maximum power extraction of the available power in a tidal stream, injection of a highly fluctuating power to the grid can result in degradation of the voltage quality. This investigation begins with an examination of the effect of injecting such variable powers to a non ...
Mahda J. Jahromi, Ali I. Maswood, King-Jet Tseng, Bicky Bhangu   +3 more
openaire   +2 more sources

Effects of wind turbines on voltage profile

International Aegean Conference on Electrical Machines and Power Electronics and Electromotion, Joint Conference, 2011
For distribution grids connected wind power generation, voltage quality is an important issue for the system planning purpose. The operation of wind turbines in the distribution networks may affect the voltage quality offered to the consumers. One of the most important considerations is the effect on the voltage profile, i.e.
Taher Abedinzadeh, Mehdi Ehsan, Hadi Afsharirad, Mohammad Nazaraliloo   +3 more
openaire   +1 more source

On the flat voltage profile of a transmission line

Power Quality '98, 2002
It is a well known idea as well as practice to install capacitor switching stations at proper points in an electrical grid to support the voltage. This idea is further exploited in respect of obtaining a flat voltage profile over a transmission line for specified terminal conditions.
N.L. Srinivasa Rao, G. Govinda Rao
openaire   +1 more source

Modified JAYA algorithm for optimal power flow incorporating renewable energy sources considering the cost, emission, power loss and voltage profile improvement

Energy, 2019
This paper presents a new version of JAYA algorithm to solve the problem of optimal power flow (OPF) incorporating renewable energy sources (RES) with four different objective functions that reflect fuel cost minimization, emission minimization ...
E. Elattar, S. Elsayed
semanticscholar   +1 more source