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Now showing items 11-20 of 67
Kalman filter-based time-varying cortical connectivity analysis of newborn EEG
(
IEEE
, 2011 , Conference Paper)
Multivariate Granger causality in the timefrequency
domain as a representation of time-varying cortical
connectivity in the brain has been investigated for the adult
case. This is, however, not the case in newborns as ...
The Non-petroleum large scale industries in the Gulf Cooperation Council countries (GCC)
(
Association of American Geographers
, 2011 , Conference Paper)
Since the early 1970s, the GCC countries have adopted the industrial development strategy as a way to achieve the economic diversification instead of depending on the oil and gas exporting; the main source of their revenues. ...
The progression of Qatar's natural gas industry and its role in global energy market
(
Royal Geographical Society
, 2011 , Conference Paper)
Qatar is the third largest country in the world in natural gas reserves with almost 900 trillion cubic feet. Since the mid of 1980s, after deep studies of the general prospect, Qatar has started to develop its largest field ...
Comparative evaluation of four quasi-square wave fed multiphase induction machines
(
IEEE
, 2011 , Conference Paper)
Multiphase winding structures provide induction machines with favorable fault tolerant characteristics. Medium voltage drives have also benefited from the favorable application characteristics of multiphase machines, as ...
Assessment of fault-ride through capability of grid-connected brushless DFIG wind turbines
(
Institution of Engineering and Technology
, 2011 , Conference Paper)
DFIGs are reported to suffer serious reliability problems due to the presence of slip-rings, brushes and gearbox. These disadvantages encouraged several research groups to investigate the viability of employing single-frame ...
Single phase grid connected current source inverter: Mitigation of oscillating power effect on the grid current
(
Institution of Engineering and Technology
, 2011 , Conference Paper)
Although voltage source inverters (VSIs) are the most common DC-AC grid-tied converters, current source inverters (CSIs) are considered to be promising candidate, thanks to their low THD voltages/currents and inherent ...
Static synchronous series compensator for low voltage ride through capability of wind energy systems
(
IET
, 2011 , Conference Paper)
Due to the large increase in number of installed high power renewable energy generating systems such as wind energy power plants, one of the important evolving requirement is riding through the fault at low or zero voltage. ...
Unified power flow controller for low voltage ride through capability of wind-based renewable energy grid-connected systems
(
IEEE
, 2011 , Conference Paper)
Due to the large increase in number of installed high power renewable energy generating systems such as wind energy power plants, one of the important evolving requirement is riding through the fault at low or zero voltage. ...
Harmonic rejection using multi-synchronous reference frame technique for CSI-based distributed generation with grid voltage distortion
(
IEEE
, 2011 , Conference Paper)
In the midst of the growing penetration of renewable energy resources and Distributed Generation (DG), power quality is one of the main concerns. Achieving low total harmonic distortion (THD) of exported current using low ...
A synchronous DQ frame controller via an LCL coupled filter under unbalanced three-phase voltage supply conditions
(
IEEE
, 2011 , Conference Paper)
This paper proposes a synchronous DQ frame current controller for inverter based interfaced systems. The grid voltage may be unbalanced, possibly due to unequal line impedance. The output active and reactive powers oscillate ...