Results 21 to 30 of about 182,045 (280)
Gazi University Journal of Science, 2020 Efficient utilization of power networks under extreme voltage sags and swells and reducing the losses are widely recognized as the most important issues in energy industry. Power electronic converter based flexible AC transmission system (FACTS) devices play a significant role in power flow control, power quality improvement, voltage regulation and ...
Fatih EROĞLU +2 more
openaire +3 more sources
A Single-Carrier-Based Pulse-Width Modulation Template for Cascaded H-Bridge Multilevel Inverters
IEEE Access, 2021 Multiplicity of the triangular carrier signals is a criterion for the extension of sinusoidal pulse-width modulation, SPWM, to a number of output voltage levels per phase-leg in cascaded H-bridge (CHB) multilevel inverter (MLI).
Charles Ikechukwu Odeh +2 more
doaj +1 more source
Frontiers in Energy Research, 2023 A centralized secondary control is utilized in a DC islanded microgrid to fine-tune voltage levels following the implementation of droop control. This is done to avoid conflicts between current allocation and voltage adjustments.
Nada Mosaad +8 more
doaj +1 more source
Reactive Power Compensation with PV Inverters for System Loss Reduction
Energies, 2019 Photovoltaic (PV) system inverters usually operate at unitary power factor, injecting only active power into the system. Recently, many studies have been done analyzing potential benefits of reactive power provisioning, such as voltage regulation ...
Saša Vlahinić +3 more
doaj +1 more source
, 2020 DC networks for residential consumers have gained attraction in recent years, primarily due to building-integrated photovoltaics and increasing electronic loads coupled with the decreasing prices of DC appliances.
Kiran Siraj, H. Khan
semanticscholar +1 more source
A DCM-Based Non-Isolated Step-Down DC Transformer
EnergiesDC transformers have emerged as essential devices for medium voltage DC (MVDC)-low voltage DC (LVDC) distribution systems. However, conventional step-down single-level converters have limits on the voltage level of the MVDC-LVDC distribution system. This
Minseung Kim +2 more
doaj +1 more source
Energies, 2020 In this paper, a multiobjective approach to carry out the planning of medium-voltage (MV) and low-voltage (LV) distribution systems, considering renewable energy sources (RES) and robustness, is proposed.
Diogo Rupolo +3 more
doaj +1 more source
Distribution Network Model Platform: A First Case Study
Energies, 2019 Decarbonisation policies have recently seen an uncontrolled increase in local electricity production from renewable energy sources (RES) at distribution level.
Mirna Grzanic +2 more
doaj +1 more source
Long-Term Monitoring of Flicker and Some Other Parameters of Voltage Quality
Transactions on Environment and Electrical Engineering, 2016 In 1997 cooperation began between the Faculty of Electrical Engineering and Computer Science and the power company CEZ on a joint project that involved monitoring selected voltage quality parameters.
Petr Krejci +3 more
doaj +1 more source
Zhongguo dianliWith no zero-crossing characteristic, DC arc is difficult to extinguish by itself, and is inclined to cause electrical fire, threatening the safety of DC power distribution.
Guoqiang LIU +4 more
doaj +1 more source