Results 11 to 20 of about 251,871 (367)
Journal of Patient-Reported Outcomes, 2022 Introduction Value-based health care represents a patient-centered approach by valuing Patient-Reported Outcome Measures (PROMs). Our aim was to describe the additional value of PROMs after an acute stroke over conventional outcome measures and to ...
Ester Sanchez-Gavilan +10 more
doaj +1 more source
Evaluation of Voltage Transformers’ Accuracy in Harmonic and Interharmonic Measurement
IEEE Open Journal of Instrumentation and Measurement, 2022 The measurement of Power Quality (PQ), generally performed at Low Voltage (LV) level, is gaining more and more importance also at the Medium Voltage (MV) level, due to the increasing presence of switching power converters (both loads or generators ...
Gabriella Crotti +4 more
doaj +1 more source
Harmonic and Supraharmonic Emissions of Plug-In Electric Vehicle Chargers
Smart Cities, 2022 Electric vehicle (EV) charging represents a relevant electric load with a rapid evolution in terms of number, power rating and distortion, in particular, considering the connection to the low-voltage public grid: available short-circuit power may be ...
Andrea Mariscotti
doaj +1 more source
Propagation of Disturbances Generated by DC Electric Traction
Energies, 2022 In Poland, rail transport is powered by the electric system with the use of traction substations that supply the electric traction with DC voltage of 3 kV.
Zbigniew Olczykowski, Jacek Kozyra
doaj +1 more source
Measurement of Power Frequency Current including Low- and High-Order Harmonics Using a Rogowski Coil
Sensors, 2022 The measurement of a power frequency current including low- and high-order harmonics is of great importance in calibration as well as in testing processes.
Mohammed El-Shahat +4 more
doaj +1 more source
Applied Sciences, 2022 Due to a range of economic incentives and policy supports, distributed photovoltaic (PV) systems are accelerating their penetration into the distribution network at all voltage levels.
Xiao Xu, Anqi Dong, Qianting Li, Hui Gao
doaj +1 more source
International Journal of Modern Physics A, 2000 The harmonic polylogarithms (hpl's) are introduced. They are a generalization of Nielsen's polylogarithms, satisfying a product algebra (the product of two hpl's is in turn a combination of hpl's) and forming a set closed under the transformation of the arguments x=1/z and x=(1-t)/(1+t). The coefficients of their expansions and their Mellin transforms
Remiddi, Ettore +1 more
openaire +2 more sources
Harmonics Distribution in Electrical Power System Containing Static Var Compensator [PDF]
Engineering and Technology Journal, 2009 This research presents a harmonic analysis of the power system with static VARcompensator. The model is formed by parallel combination of Thyristor ControlReactor (TCR) with a bank of capacitor .This model based on use of harmonicswitching functions and ...
Mohammed K. Edan
doaj +1 more source
Energies, 2022 Aware of the fact that the installed PV capacity and its power production rapidly increased in the last decade, with the huge impact that has been done to the power system, the distortion effects for grid-connected PV systems with reference to different ...
Marko Ikić, Jovan Mikulović
doaj +1 more source
Energies, 2022 Renewable energy sources (RES) are becoming more attractive due to the global demand for the utilization of clean energy and their easy accessibility. The integration of renewable energy technologies into power systems has been made easy, such that RES ...
Saheed Lekan Gbadamosi +2 more
doaj +1 more source