Results 81 to 90 of about 1,696 (209)

Hard-Switched Overvoltage Robustness of p-Gate GaN HEMTs at Increasing Temperatures

, 2020
An essential ruggedness characteristic of power devices is the capability to withstand the transient overvoltage in power electronic applications. As the newly commercialized GaN HEMTs can switch faster, and under higher voltage biases, it is important ...
Zhang, Yuhao, Yuhao Zhang, Zhang, Ruizhe, Liu, Jingcun, Ruizhe Zhang, Jingcun Liu, Kozak, Joseph P., Joseph P. Kozak, Ming Xiao, Song, Qihao, Xiao, Ming, Qihao Song   +11 more
core   +1 more source

Influence of High-voltage Transformer on Electric Locomotive Passing the Neutral Section

机车电传动, 2015
Based on the typical manner of electric locomotive passing the neutral section, equivalent circuit model was established of the three kinds of voltage transformer according to electromagnetic induction, the resistance partial pressure and capacitance ...
MA Tan, XU Yan
doaj  

Simulation, Design, and Test of a Dual-Differential D-Dot Overvoltage Sensor Based on the Field-Circuit Coupling Method

Sensors, 2019
Accurate measurement of overvoltage in power grids is of great significance to study the characteristics of overvoltage and design of insulation coordination.
Pengcheng Zhao, Jingang Wang, Qian Wang, Qianbo Xiao, Ruiqiang Zhang, Shucheng Ou, Yaqin Tao   +6 more
doaj   +1 more source

Analysis and mitigation of transient overvoltage with integration of small scale power-electronic interfaced DG

, 2012
As the amount of non-scheduled small scale distributed generation (DG) units are increasing, lack of fault ride through (FRT) capability of these generators may have an adverse affect on the overall power system.
T. K. Saha, Nadarajah, Mithulananthan, Saha, Tapan K., N. Mithulananthan, T. Aziz, Aziz, Tareq   +5 more
core   +1 more source

An advanced transient protection circuit for enhancing the overvoltage tolerance of MMC submodules

Journal of Engineering and Applied Science
IGBTs are critical switching devices in MMCs, yet their vulnerability to turn-off overvoltage under transient and fault conditions poses a fundamental reliability challenge.
Chao You, Jiancheng Ma, Xin Chen
doaj   +1 more source

Overvoltage Suppression Strategy for VSG-Based DFIGs Under Commutation Failures of HVDC Transmission Systems

Energies
Virtual synchronous generator (VSG) control, which can provide inertia output, damp power oscillations, and offer frequency and voltage support to power grids, has become a growing trend in the control field of wind power generation. As a new technology,
Shuyi Wang, Qicai Wang, Zhijie Zeng, Wei Jiang, Jinyu Chen, Zhijun Wang   +5 more
doaj   +1 more source

Lightning caused overvoltages on power transformers recorded by on-line transient overvoltage monitoring system

, 2018
Transient overvoltages generated by lightning strikes or switching operations represent a significant risk to bushings and windings of power transformers.
Keitoue, Samir, Ivana Damjanović, Alan Župan, Damjanović, Ivana, Pavić, Ivica, Samir Keitoue, Župan, Alan, Božidar Filipović-Grčić, Murat, Ivan, Ivan Murat, Ivica Pavić, Filipović-Grčić, Božidar   +11 more
core  

Analysis of Switching Transient Overvoltage in the Power System of Floating Production Storage and Offloading Vessel

, 2012
Large transient overvoltages can be caused by the switching operation of vacuum circuit breakers of induction motors. In order to analyze the switching transient overvoltage and use an appropriate protective method in the power system of floating ...
Xue, H. (author)
core  

Feature statistics and analysis of transient overvoltage waveform measured from 220 kV substation

The electromagnetic transient overvoltage in the substation is an important factor that affects the life of insulation equipment. For evaluate the economy and reliability of the insulation design of substation equipment, it is necessary to study and ...
Chenmeng Zhang, Shijun Xie, Yong Ouyang, Jianjun Zhang, Lieguo Zhou, Yalong Xia, Zhou Mu, Qiang Chen   +7 more
core   +1 more source

Covered conductor burn-down prevention for distribution line in Indonesia

MATEC Web of Conferences, 2018
Covered conductor (CC) is used to resolve temporary line to ground fault in the distribution line. However, some cases of CC burn down were found in Indonesia.
Pramana Putu Agus Aditya, Kusuma Aristo Adi, Munir Buyung Sofiarto, Tambunan Handrea Bernando   +3 more
doaj   +1 more source