Results 41 to 50 of about 196 (126)

Real‐Time Tracking of Fault Development and Faulty Feeder Identification Method for Resonant Grounding System Based on Transient Information During Arc Suppression

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
This paper proposes a fault tracking and feeder identification method based on the arc suppression process of resonant grounding systems. By analyzing the transient characteristics of zero‐sequence signals after full compensation by the arc suppression coil, the method enables both sensitive transition resistance identification (reflecting fault ...
Zhuang Jiang, Zixiong Wan, Xiangjun Zeng, Baowen Liu   +3 more
wiley   +1 more source

Open Education as a threshold concept in Teacher Education: a theoretical framework for further research [PDF]

, 2018
Threshold concept framework: A threshold concept can be considered as akin to a portal, opening up a new and previously inaccessible way of thinking about something.
Baker, Nick, Crump, Helen, García Vallejo, Mari Cruz, Havemann, Leo, Keefer, Jeffrey, Marsh, J. Dawn, Marín, Victoria I., Nascimbeni, Fabio, Tur, Gemma   +8 more
core   +4 more sources

Are manufacturing I-V Mismatch and Reverse Currents Key Factors in Large Photovoltaic Arrays? [PDF]

, 2009
In this paper, two factors typical of large photovoltaic (PV) arrays are investigated: one is the current-voltage (I-V) mismatch consequent to the production tolerance; the other is the impact of reverse currents in different operating conditions ...
SPERTINO, Filippo, SUMAILI AKILIMALI, JEAN   +1 more
core   +1 more source

Renewable energy hosting capacity assessment in distribution networks based on multi‐strategy improved whale optimization algorithm

IET Renewable Power Generation, Volume 19, Issue 1, January/December 2025.
To effectively evaluate the renewable energy hosting capacity in distribution networks, this paper introduces a comprehensive hosting capacity assessment model considering various safety and stability constraints. Given the numerous non‐linear constraints inherent in the hosting capacity assessment model for distribution networks, a multi‐strategy ...
Chongwu Dong, Tao Yu, Zhenning Pan, Yufeng Wu, Ziyao Wang, Yipeng Wang, Keying Wang   +6 more
wiley   +1 more source

Artificial Intelligence Approaches for SOH Estimation in Lithium‐Ion Batteries: A Comprehensive Review of Progress, Critical Evaluations, Challenges, and Toward Future Outlooks

Applied Computational Intelligence and Soft Computing, Volume 2025, Issue 1, 2025.
In recent years, safety issues with electric vehicles (EVs) have grown. These EVs are powered by rechargeable lithium‐ion batteries (LIBs), which are key energy storage systems. The accurate estimation of these LIBs state of health (SOH) is crucial for reliable performance and reduction in safety issues.
Deepak Kumar, Rashid Nasimov, Akshat Singh, Amritanshu Jha, Anand Jha, M. Rizwan, Nur Ezlin Zamri   +6 more
wiley   +1 more source

Dual‐port network‐based impedance modelling and AC‐port characteristic analysis of wound rotor synchronous machine for more electric aircraft

IET Electric Power Applications, Volume 18, Issue 12, Page 1807-1817, December 2024.
This paper introduces a novel method to model the WRSM in a modular and cascaded manner. By connecting the dual port of each component from the rear stage to the front stage in a cascaded way, a dual‐port network can be built to describe the external impedance characteristics of the WRSM.
Zixiao Xu, Yang Qi, Weilin Li, Yu Wu, Josep M. Guerrero, Juan C. Vasquez   +5 more
wiley   +1 more source

Analysis of voltage limit‐induced barrier for connecting inverter‐based distributed generators to medium voltage networks: Australian case studies

IET Energy Systems Integration, Volume 6, Issue 4, Page 565-580, December 2024.
Abstract Inverter‐based distributed generators (IBDGs), mainly solar photovoltaic, connected in medium‐voltage (MV) networks cause challenges, such as voltage limit violations, for distribution network service providers (DNSPs), and require advanced network management strategies to mitigate these challenges.
Mir Toufikur Rahman, Mingchen Gu, Moudud Ahmed, Kazi N. Hasan, Lasantha Meegahapola   +4 more
wiley   +1 more source

COMPRESSIVE SENSING-BASED METHODOLOGIES FOR SMART GRID MONITORING [PDF]

, 2020
Modern distribution networks, commonly known as Smart Grids, will be characterized by strictly requirements in terms of reliability and efficiency of the power supply.

core  

Transient stability of grid following inverters: The impacts of damping and fault ride‐through

Energy Internet, Volume 1, Issue 2, Page 150-165, November 2024.
Abstract The interaction of grid following inverters with a weak grid raises risks of transient instability. The effects of damping and fault‐ride through (FRT) make the transient dynamics more complicated. To investigate the impact of FRT on the transient stability of converters, this paper first employs the switch system theory to construct a ...
Qi Zhang, Yunjie Gu, Dong Liu, Chenxu Wang, Kehu Yang, Zhe Chen   +5 more
wiley   +1 more source

Active elimination of DC bias current of a SiC based dual active bridge by controlling the dead time period

IET Power Electronics, Volume 17, Issue 14, Page 1960-1972, 4 November 2024.
The transient switching mismatch between the switch pairs S1 & S4 and S2 & S3 leads to average voltage deviations during turn‐on and turn‐off instants, resulting in a net DC average voltage. This problem is compounded due to the low winding resistance of the transformer and eventually leads to saturation of the transformer. Abstract Dual active bridge (
Ganesan Perumal, Kamalesh Hatua, Manju Rajagopal   +2 more
wiley   +1 more source