Results 31 to 40 of about 6,126 (298)

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

open access: yesIET 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   +4 more
doaj   +1 more source

Optimal Protection Coordination of Active Distribution Networks With Synchronverters

open access: yesIEEE 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

open access: yesCSEE 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   +5 more
doaj   +1 more source

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

open access: yesZhejiang 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   +6 more
doaj   +1 more source

An Adaptive Overcurrent Coordination Scheme to Improve Relay Sensitivity and Overcome Drawbacks due to Distributed Generation in Smart Grids [PDF]

open access: yes, 2017
Distributed Generation (DG) brought new challenges for protection engineers since standard relay settings of traditional system may no longer function properly under increasing presence of DG.
Conde, Arturo   +3 more
core   +1 more source

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

open access: yesGlobal 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   +4 more
doaj   +1 more source

Fault Current Limiters in Power Systems: A Comprehensive Review

open access: yesEnergies, 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   +2 more
doaj   +1 more source

Augmentation of DFIG and PMSG Wind Turbines Transient Performance Using Different Fault Current Limiters

open access: yesEnergies, 2022
The technology of variable speed wind turbines is very promising in renewable power generation. It is imperative for wind turbines to gain control after grid disturbances and contribute to the stability of power grids as part of the requirements of grid ...
Kenneth E. Okedu
doaj   +1 more source

Preferences of Pediatric Patients and Their Caregivers for Chemotherapy‐Induced Nausea and Vomiting Control Endpoints: A Mixed Methods Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Although not always achieved, complete chemotherapy‐induced nausea and vomiting (CINV) control is the conventional goal of CINV prophylaxis. In this two‐center, mixed‐methods study, we sought to understand the preferences of adolescent patients and family caregivers for CINV control endpoints.
Haley Newman   +8 more
wiley   +1 more source

Comparison of current-limiting strategies during fault ride-through of inverters to prevent latch-up and wind-up [PDF]

open access: yes, 2013
Transient stability of a power network requires that generators remain synchronized and return to normal power export once a fault is cleared. For inverter-interfaced generators, one must ensure that current and voltage limiters do not latch-up and that ...
Bottrell, N, Green, TC
core   +1 more source

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