Results 61 to 70 of about 934 (179)

Studies on an Electromagnetic Transient Model of Offshore Wind Turbines and Lightning Transient Overvoltage Considering Lightning Channel Wave Impedance

Energies, 2017
In recent years, with the rapid development of offshore wind turbines (WTs), the problem of lightning strikes has become more and more prominent. In order to reduce the failure rate caused by the transient overvoltage of lightning struck offshore WTs ...
Li Zhang, Shengwei Fang, Guozheng Wang, Tong Zhao, Liang Zou   +4 more
doaj   +1 more source

DETERMINATION OF THE LEVEL OF OVERVOLTAGE IN THE SECONDARY CIRCUITS OF SUBSTATIONS WHEN LIGHTNING IMPULSE VOLTAGE IS DISTRIBUTED IN HIGH-VOLTAGE BUSES

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2017
Lightning voltage impulse due to the waves of storm surge rolling out the high voltage line to a substation causes current to flow in the buses that, due to magnetic effect, induces overvoltage in the secondary circuit.
V. I. Glushko, E. A. Deryugina
doaj   +1 more source

Line Supply Overvoltage Failure Analysis and Protection Strategy Improvement of Ningbo Rail Transit Line 2 Phase 1 Trains

机车电传动, 2017
Aiming at the problem that train traction blocked caused by the line supply overvoltage of Ningbo rail transit line 2 phase 1 train, the cause was analyzed, and with the simulation, an improved solution of overvoltage protection logic according to the ...
YI Jian, HUANG Huijian
doaj  

Present situation and development trend of control and protection technology for mine-used combined switch

Gong-kuang zidonghua, 2019
Present situation of control and protection technology for mine-used combined switch was introduced from aspects of short circuit protection, overload protection, leakage lockout and leakage protection, transient overvoltage protection and temperature ...
YANG Fan, CHEN Jiang
doaj   +1 more source

Response Characteristics of a ZnO Arrester Under Nanosecond Electromagnetic Pulse

IEEE Access
Zinc oxide arresters, a major type of overvoltage protection equipment in power systems, can suppress transient lightning overvoltage, operation overvoltage, and other types of power surges.
Feng Qin, Wei Chen, Xutong Wang, Xin Nie, Simeng Li   +4 more
doaj   +1 more source

Design of Fault Protection Stra for Unified Power Flow Controller in Distribution Networks

Energies
The capacity of traditional distribution networks is limited. After large-scale distributed power sources are connected, it is difficult to consume them at the same voltage level, which can lead to transformer reverse overloading and voltage limit ...
Xiaochun Mou, Ruijun Zhu, Xuejun Zhang, Wu Chen, Jilong Song, Xinran Huo, Kai Wang   +6 more
doaj   +1 more source

Investigation of Sub-Cycle Overvoltages Experienced by Inverter-Based Resource (IBR) Plants Due to System Disturbances

IEEE Access
IEEE Std 2800-2022 marks a major step forward in defining minimum technical requirements for connecting inverter-based resources (IBRs) to the Bulk Power System (BPS). However, as the standard gains wider adoption and real-world implementation progresses,
Mobolaji Bello, Manish Patel, Ali Bidram, Robert F. Arritt   +3 more
doaj   +1 more source

NONLINEAR OVERVOLTAGE LIMITER APPLICATION FOR INTERNAL OVER-VOLTAGE PROTECTION IN AVERAGE VOLTAGE NETWORKS

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2005
Review of internal over-voltages in distribution networks 6…10 kV and means of their limitation has been carried out. One of the most efficient remedy for reduction of over-voltage at arcing ground is resistive neutral grounding.
A. N. Bokhan, V. V. Krotenok
doaj  

Impact of Adding Fast Switching Fault Current Limiter (FSFCL) to the Neutral Point of 220 kV Transformer

Energies
In recent years, as the power grid continues to expand, the issue of asymmetrical short-circuit currents exceeding limits on the 220 kV medium-voltage side has become increasingly severe, and traditional current-limiting methods have certain limitations.
Lujian Dai, Jun Zhao, Meng Guo, Shuguo Gao, Chenmeng Xiang, Bin Wei, Weiqi Qin, Guoming Ma, Yuan Tian   +8 more
doaj   +1 more source

Interleaved Buck Converter with Overvoltage Protection

International Journal for Research in Applied Science and Engineering Technology
Efficient DC–DC power conversion is essential in modern electrical and electronic systems such as electric vehicles, renewable energy setups, and industrial power supplies. Interleaved Buck Converter with Overvoltage Protection presents the design and implementation of a Two Phase Interleaved Buck Converter using a PI controller for stable and ...
openaire   +1 more source