Results 1 to 10 of about 240,908 (266)
The role of the DC component in human perception of AC-DC hybrid electric fields and a comparison with the AC component. [PDF]
Sci Rep, 2023 As part of the energy transition in Germany, high-voltage overhead power lines will be operated using hybrid systems that combine alternating and direct current (AC and DC). The degree to which humans perceive hybrid electric fields (EFs) is dependent on
Kursawe M +6 more
europepmc +5 more sources
Behavior of Residual Current Devices at Earth Fault Currents with DC Component. [PDF]
Sensors (Basel), 2022 Low-voltage electrical installations are increasingly saturated with power electronic converters. Due to very high popularity of photovoltaic (PV) installations and the spread of electric vehicles (EV) as well as their charging installations, DC–AC and ...
Czapp S, Tariq H, Cieslik S.
europepmc +2 more sources
The.main types of wind turbines-generators in the power supply system
Известия высших учебных заведений: Проблемы энергетики, 2022 THE PURPOSE. This paper considers the problem of relay protection functioning when the current transformer reaches the saturation mode which is provided by transient processes.METHODS. MATLAB Simulink software environment allows reproducing the method of
V. A. Novobritsky, D. S. Fedosov
doaj +1 more source
IEEE Access, 2023 Flashover characteristics are closely related to the electrical field distribution on the surface of oil-paper insulation. In this study, the effects of electrical field and DC voltage components on the creepage flashover characteristics of oil-paper ...
Jin Fubao, Zhou Yuanxiang
doaj +1 more source
Control method of DC component for NNBI accelerator power supply
Energy Reports, 2023 In the high voltage power supply of the negative ion source neutral beam injection system (NNBI) accelerator, the three-phase three-level neutral point clamping (NPC) inverter, as an inverter module, has a detectable DC component in its output.
Hongfei Yong +4 more
doaj +1 more source
DC Component Suppression of Grid-Connected Z-Source Inverter Based on Disturbance Observer
Energies, 2022 Regarding the problems of resonance and direct current (DC) components when the Z-source inverter (ZSI) without an isolation transformer is connected to the grid through an LCL filter, this paper proposes a novel DC component suppression strategy for a ...
Guofeng He +4 more
doaj +1 more source
DC Restoration by Data-Aided Sequence in Kramers-Kronig Receiver
IEEE Photonics Journal, 2022 In recent years, Kramers-Kronig (KK) receiver has been widely studied because of its simple structure and the ability of digital signal processing (DSP) to recover complex value signals.
Zhonghan Su +6 more
doaj +1 more source
Energies, 2021 This study examines various low voltage levels applied to a direct current residential nanogrid (DC-RNG) with respect to the efficiency and component cost of the system.
Saeed Habibi +3 more
doaj +1 more source
Research on fault line selection method of mine power network
Gong-kuang zidonghua, 2018 In view of characteristics of DC component of transient zero-sequence current in fault lines is larger than that of normal lines when additional DC source system of mine power network occurrs single-phase earth fault, a fault line selection method of ...
LI Ke +5 more
doaj +1 more source
A new leakage protection method for mine power network
Gong-kuang zidonghua, 2016 A new leakage protection method was proposed which was based on least-square matrix algorithm. In the method, zero sequence current signal of each brance is extracted on the basis of additional DC source system, and DC component of the zero sequence ...
ZHAO Jianwen +6 more
doaj +1 more source