Results 21 to 30 of about 329 (178)
IEEE Transactions on Power Delivery, 2021 Extensive simulations have been carried out of transient voltages superimposed onto the DC voltage of HVDC cable transmission systems. With the advent of VSC HVDC cable systems, attention has turned to long Temporary Overvoltages in such systems. Preliminary experiments on the possible adverse effects of these long TOVs on the insulation of VSC HVDC ...
Mazzanti G., Diban B.
openaire +2 more sources
Voltage Source Converter–Based Voltage Stiffness Compensator to Improve Grid Voltage Dynamics
Frontiers in Energy Research, 2022 This study proposes a novel voltage source converter (VSC)-based voltage dynamic regulatory device based on energy storage and virtual synchronous control, called as a rotating inertia and voltage stiffness compensator (RIVSC), to enhance grid voltage ...
Lei Shang +4 more
doaj +1 more source
Risk Assessment of Post-Fault Temporary Overvoltage Using Generalized Short-Circuit Ratio
, 2022 Temporary overvoltage (TOV) is becoming one challenge for the integration of significant power electronics resources into a power system. To assess the risk of TOV in a Multi-Infeed Power Electronic System (MIPES), a worst-case estimation approach is ...
xinyu liu (12572088) +5 more
core +1 more source
IET Generation, Transmission & Distribution, 2021 In transmission lines, shunt‐reactors are commonly applied to counteract the “Ferranti effect.” However, in highly compensated lines, hazardous overvoltage may occur during unbalanced open‐phase conditions.
Chen Xiaoyue +6 more
doaj +1 more source
Experimental Study on the Catalyst-Coated Membrane of a Proton Exchange Membrane Electrolyzer
Energies, 2022 Proton exchange membrane (PEM) technology may regulate the electrical grid connected to intermittent power sources. The growing pace of R&D in alternative components is widening manufacturing methods and testing procedures across the literature.
Amadeu Gomes Rocha +3 more
doaj +1 more source
, 2022 We developed a new strength measure, the hybrid multi-infeed effective short-circuit ratio (HMESCR), for evaluating hybrid multi-infeed high-voltage direct current (MIDC) systems.
Kim, Yong Kyu +3 more
core +1 more source
Energies, 2022 This paper proposes a systematic and deterministic method for metal-oxide varistor (MOV) surge arrester selection based on the comprehensive analysis in line-commutated converter (LCC)-based high-voltage direct current (HVDC) transmission systems.
Jaesik Kang
doaj +1 more source
Adaptive sequential reclosing strategy for hybrid HVDC circuit breakers in MMC‐based DC grids
High Voltage, 2022 DC circuit breaker (DCCB) is one of the most promising solutions for handling DC fault in half‐bridge modular multilevel converter (MMC)‐based DC grid.
Jingqiu Yu, Zheren Zhang, Zheng Xu
doaj +1 more source
Derivation of Theoretical Formulas of the Frequency Component Contained in the Overvoltage Related to Long EHV Cables [PDF]
, 2012 Recent studies of long extremely high-voltage (EHV) cables show the importance of performing temporary overvoltage analyses. As the switching of EHV cables can trigger temporary overvoltages, it is important to find the dominant frequency component ...
Ohno, Teruo +4 more
core +1 more source
Analysis of operating conditions of the voltage transformer
Vestnik MGTU, 2017 In electrical networks, constant monitoring of the electrical equipment operation is necessary. To accomplish this task, current transformers and voltage transformers (VT) are used, on which the accuracy of electrical measurements, electricity metering ...
Fastiy G. P. +4 more
doaj +1 more source