Results 91 to 100 of about 8,357 (239)
Study of Recovery Transient Overvoltage using ATP
Peak overvoltage occurring during switching (energizing and de-energizing) is one of the most frequently encountered problems in power systems environment.
Anantha Rao, Anantha
core
Inspired by the mimosa, this study develops a flexible triboelectric nanogenerator with a novel microneedle array and battery‐mimetic architecture. The device introduces a spontaneous charge self‐regulation mechanism that confines the electric field below the air breakdown threshold, and achieves an outstanding charge density of 396.50 µC m−2 ...
Hanpeng Gao +7 more
wiley +1 more source
Accurate simulation of lightning‐induced overvoltage for overhead distribution lines is helpful to prevent lightning trip accidents. An electromagnetic return‐stroke model was used to represent lightning and then a 3D finite‐difference time‐domain (FDTD)
Pan Duan +5 more
doaj +1 more source
Study on characteristics of slow-front overvoltage of ±1100 kV UHVDC transmission lines
The ±1100 kV Zhundong–Wannan ultra high-voltage direct current (UHVDC) transmission project is under construction in China, which has the highest operating voltage in the world.
Jiqun Zhong +5 more
doaj +1 more source
Analysis of Overvoltage in Nonhomogeneous Distribution Cable Grids
Коржов Антон Вениаминович, д-р техн. наук, доцент, профессор кафедры «Электрические станции, сети и системы электроснабжения», проректор по научной работе, Южно-Уральский государственный университет, г. Челябинск; korzhovav@susu.ru.
Коржов, А.В. +5 more
core +1 more source
Thermal impedance spectroscopy is used to obtain the thermal parameters of a battery cell. Here, by utilising the cell temperature, the influence of thermal gradients on the resulting measurement is minimised, avoiding negative real values at all frequency points. The paper, therefore, compares multiple cell states and formats to gain insights into the
Dominik Droese, Julia Kowal
wiley +1 more source
DC overvoltage suppression method of wind farm connected via MMC‐HVDC system
A new integration strategy of grid‐forming‐controlled wind farms connected to the bulk power systems through high‐voltage direct current transmission based on the modular multi‐level converter (MMC) is proposed to solve the problem of traditional ...
Siying Chen +6 more
doaj +1 more source
In the hierarchically connected ultra-high voltage (UHV) DC projects, the minimum air clearance on the 1000 kV AC side of converter transformer directly affects the layout and area of the valve hall.
Lou Ying +3 more
doaj +1 more source
Due to complex wind farm conditions, a coordinated control system was designed. It manages DC power surges during AC faults by temporarily storing excess energy and regulating voltages. This strategy optimizes unbalanced power and enables effective fault recovery, resulting in minimal voltage fluctuations and superior performance.
Lei Chen, Qi Han
wiley +1 more source

