Results 31 to 40 of about 7,507,788 (276)

Equivalent Model of Photovoltaic Power Station Considering Different Generation Units’ Fault Current Contributions

Energies, 2021
The fault current calculation model of photovoltaic (PV) power stations is usually treated as a capacity weighted equivalent model of a single PV generation unit (PVGU).
Sumei Liu, Hao Zhang, Peng Zhang, Zhongqing Li, Zepeng Wang   +4 more
doaj   +1 more source

Optimal placement of resistive superconducting fault current limiter by considering short‐circuit current and transient stability of power system

IET Generation, Transmission & Distribution, 2023
High level of fault currents has become one of the most challenging issues, along with increased electrical energy consumption and power grid expansion. However, some of the previous work was limited to installing limiters on designs and installing them ...
Isa Hafidz, Rafin Aqsa Izza Mahendra, Margo Pujiantara, Ardyono Priyadi, Mauridhi Hery Purnomo   +4 more
doaj   +1 more source

Optimal Protection Coordination of Active Distribution Networks With Synchronverters

IEEE Access, 2022
Synchronverters are inverters imitating synchronous generators (SGs) to curb adverse impacts of traditional inverters on power networks. However, synchronverters may generate unlimited currents during faults.
Saad Pola, Maher A. Azzouz
doaj   +1 more source

Asymmetrical Fault Current Calculation Method and Influencing Factors Analysis of Droop-Controlled Inverters

CSEE Journal of Power and Energy Systems
Since the fault dynamic of droop-controlled inverter is different from synchronous generators (SGs), protection devices may become invalid, and the fault overcurrent may damage power electronic devices and threaten the safety of the microgrid. Therefore,
Huimin Zhao, Zhikang Shuai, Jun Ge, An Luo, Weimin Wu, Z. John Shen   +5 more
doaj   +1 more source

Placement optimization of Multi-Type fault current limiters based on genetic algorithm

Global Energy Interconnection, 2021
The fault current limiter (FCL) is an effective measure for improving system stability and suppressing short-circuit fault current. Because of space and economic costs, the optimum placement of FCLs is vital in industrial applications. In this study, two
Guofeng Jin, Jie Tan, Lingling Liu, Chuan Wang, Tiejiang Yuan   +4 more
doaj   +1 more source

A study on the impact characteristics of resistive-type DC fault current limiter

Zhejiang dianli
DC fault current limiters can rapidly restrict the rise of fault currents， but attention needs to be paid to their dynamic current-limiting characteristics during fault impact.
ZHAO Zihui, HUANG Hui, LU Hongbin, WANG Juan, ZHEN Bao, REN Xingwang, ZHANG Chong   +6 more
doaj   +1 more source

A Hybrid DC Circuit Breaker with Fault-Current-Limiting Capability for VSC-HVDC Transmission System

Energies, 2019
The direct current circuit breakers are considered a promising option to protect the transmission line against commonly appearing line-to-ground fault.
Muhammad Ahmad, Zhixin Wang
doaj   +1 more source

Impact of marine power system architectures on IFEP vessel availability and survivability [PDF]

, 2007
In recent years integrated full electric propulsion (IFEP) has become a popular power system concept within the marine community, both for the naval and the commercial community.
Burt, G.M., Schuddebeurs, J., Booth, C.D., McDonald, J.R.   +3 more
core   +4 more sources

Fault Current Limiters in Power Systems: A Comprehensive Review

Energies, 2018
Power systems are becoming more and more complex in nature due to the integration of several power electronic devices. Protection of such systems and augmentation of reliability as well as stability highly depend on limiting the fault currents.
Md Shafiul Alam, Mohammad Ali Yousef Abido, Ibrahim El-Amin   +2 more
doaj   +1 more source

Bridging the Loneliness Gap: Depression, Connectivity, and Isolation in Pediatric Oncology Patients and Their Peers

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld, Scott H. Maurer, Michelle D. Watkinson, John Nury, Elise Barberis, Molly C. Mack   +5 more
wiley   +1 more source