Results 71 to 80 of about 725 (207)

A New Approach for Estimation of Lithium‐Ion Battery State of Charge and Health Using Mixed H∞/H2 Control With Sliding Mode Observer

Battery Energy, Volume 5, Issue 1, January 2026.
The rise of renewable energy sources is accompanied with a depletion of raw materials used in batteries. The project summarized in this paper presents a system aiming to estimate the SOC and SOH of Lithium‐Ion Battery. This is achieved Using Mixed H∞/H2 Control with Sliding Mode Observer.
Chadi Nohra, Jalal Faraj, Bechara Nehme, Mahmoud Khaled, Rachid Outbib   +4 more
wiley   +1 more source

Certain investigation and implementation of Coulomb counting based unscented Kalman filter for state of charge estimation of lithium-ion batteries used in electric vehicle application

International Journal of Thermofluids, 2023
At various operating conditions, battery performance and attributes will change. By employing precise, effective circuit and battery models, designers can forecast and optimize battery run-time, the current state of charge (SOC), and circuit performance.
Selvaraj Vedhanayaki, Vairavasundaram Indragandhi   +1 more
doaj   +1 more source

Identifying Oscillation‐Vulnerable Buses Using Impedance‐Based Reflection Coefficient

Electronics Letters, Volume 62, Issue 1, January/December 2026.
We propose a method to identify oscillation‐vulnerable buses by applying the Barkhausen criterion to an impedance‐based reflection‐coefficient analysis in power systems. The method computes the reflection‐coefficient magnitude and phase from the Thevenin impedance seen from each bus and the corresponding load impedance, and evaluates phase variations ...
Taewan Choi, Hyun‐Keun Ku, Jaehyeong Lee, Dongho Lee   +3 more
wiley   +1 more source

Real‐Time Active Power Control Method Considering Voltage Security Constraints and Effective Regulation Space of Multitype Resources

IET Energy Systems Integration, Volume 8, Issue 1, January/December 2026.
ABSTRACT Renewable energy bases in Desert‐Gobi‐Wasteland (DGW) areas connected with high‐voltage direct current (HVDC) transmission systems show notable weak‐grid features, including low inertia, weak damping and a low short‐circuit ratio. This results in strong active power–voltage (P–V) coupling effects, making existing real‐time active power control
Guoqing Li, Heyang Sun, Shouqi Jiang, Yechun Xin, Jian Lou   +4 more
wiley   +1 more source

Ferromagnetically Shielded Fault Current Limiter (FS‐FCL) Evaluation in Power Line

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This study introduces a new ferromagnetically shielded FS‐FCL design and its control strategy for limiting and interrupting fault currents. The fully shielded core structure enhances inductance and prevents saturation, enabling an immediate fault response without causing voltage drop during normal conditions.
Kamran Ghorbanyan, Selim Acar
wiley   +1 more source

Online parameter identification for equivalent circuit model of lithium-ion battery

, 2023
Parameter identification is the most fundamental task for the model-based battery management system. However, there are some difficulties in completing this task since most of the existing methods require at least one known parameter or a time-consuming ...
Trung, Nguyen Kien, Thi Diep, Nguyen, Nguyen Thi Diep, Nguyen Kien Trung   +3 more
core   +1 more source

Stability and Synchronization of MMC‐HVDC Systems Using SRF and Inertia‐Based PLLs

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This study investigates the influence of synchronous reference frame PLL (SRF‐PLL) and the inertia PLL (IPLL) on the stability of grid‐connected modular multilevel converter high voltage direct current (MMC‐HVDC) systems. The findings highlight intrinsic stability limitations of PLL‐based systems, offering insights toward more stable, PLL‐less ...
Shuai Wang, Robin Preece, Mike Barnes
wiley   +1 more source

A Comparative Study on Battery Modelling via Specific Hybrid Pulse Power Characterization Testing for Unmanned Aerial Vehicles in Real Flight Conditions

World Electric Vehicle Journal
Battery modelling is essential for optimizing the performance and reliability of Unmanned Aerial Vehicles (UAVs), particularly given the challenges posed by their dynamic power demands and limited onboard computational resources. This study evaluates two
Waiard Saikong, Prasophchok Phumma, Suradet Tantrairatn, Chaiyut Sumpavakup   +3 more
doaj   +1 more source

Total Distortion—A New Power Quality Index on Current Harmonic Evaluation for Users With Internal Loads and DERs

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
ABSTRACT The IEEE Std 519–2022 IEEE Standard for harmonic control in electric power systems is widely used for controlling the harmonics in the electric power system. It uses the total demand distortion (TDD) for current harmonic evaluation at the point of common coupling (PCC).
Sivaraman P, Sharmeela C, Sanjeevikumar P, Sabari B. K   +3 more
wiley   +1 more source

Common Mode Current Prediction from a Power Converter with Attached Cables Based on a Terminal Equivalent Circuit Model

, 2016
An equivalent two terminal model based on Thevenin equivalents describes the common mode currents on the input and output side of a buck converter. A linear equivalent terminal model of the buck converter is created based on measured common mode currents
Satyajeet Shinde, Shinde, Satyajeet R., Pommerenke, David, Masuda, Kohei, Kohei Masuda, Patnaik, Abhishek, David Pommerenke, Abhishek Patnaik, Makharashvilli, Tamar, Tamar Makharashvilli   +9 more
core   +1 more source