Results 111 to 120 of about 9,627 (228)
In order to properly manage lithium-ion batteries of electric vehicles (EVs), it is essential to build the battery model and estimate the state of charge (SOC). In this paper, the fractional order forms of Thevenin and partnership for a new generation of
Renxin Xiao +5 more
doaj +1 more source
On the use of the average large separation in surface layer independent model fitting
The physics of the outer layers of a star are not well understood but these layers make a major contribution to the large separation. We quantify this using stellar models and show that the contribution ranges from 6\% from the outer 0.1\% of the radius ...
Roxburgh, Ian W
core +1 more source
The study presents a shapelet‐based method for short‐term voltage stability assessment in multi‐infeed HVDC systems, directly addressing the challenges of high‐dimensional, nonlinear and time‐varying phenomena intrinsic to modern power grids. By integrating a multi‐timescale interaction mechanism with an interpretable time‐series data mining approach ...
Yubo Sun, Shuqing Zhang, Chao Lu
wiley +1 more source
Mechanism and Data-Driven Fusion SOC Estimation
An accurate assessment of the state of charge (SOC) of electric vehicle batteries is critical for implementing frequency regulation and peak shaving. This study proposes mechanism- and data-driven SOC fusion calculation methods.
Aijun Tian +4 more
doaj +1 more source
This paper builds an admittance model for a DFIG‐STATCOM parallel system. Based on the system, the paper provides a method to optimise the control of the STATCOM, which aims to increase the performance of the system during symmetrical faults .
Wenhao Du +5 more
wiley +1 more source
Electrical Characterization and Modeling of a Gelatin/Graphene System
A gelatin/graphene composite has been analyzed by means of current density-voltage and the electrical impedance measurements. The DC electrical behavior has been interpreted in terms of an equivalent Thévenin model taking into account the open circuit ...
Giovanni Landi +3 more
doaj +1 more source
Non-LTE line formation for heavy elements in four very metal-poor stars
Stellar parameters and abundances of Na, Mg, Al, K, Ca, Sr, Ba, and Eu are determined for four very metal-poor stars (-2.66 < [Fe/H] < -2.15) based on non-LTE line formation and analysis of high-resolution (R ~60000 and 90000) high signal-to-noise (S/N >
Aldenius +114 more
core +1 more source
The Chemical Composition of {\tau} Ceti and Possible Effects on Terrestrial Planets
{\tau} Ceti (HD10700), a G8 dwarf with solar mass of 0.78, is a close (3.65 pc) sun-like star where 5 possibly terrestrial planet candidates (minimum masses of 2, 3.1, 3.5, 4.3, and 6.7 Earth masses) have recently been discovered. We report abundances of
Pagano, Michael +3 more
core +1 more source
Online assessment of short-term voltage stability based on hybrid model and data-driven approach
With the continuously increasing integration of renewable energy sources into power grids, the dynamic response of a power system is becoming more complex.
Guowei Cai +5 more
doaj +1 more source

