Results 71 to 80 of about 2,228 (213)

Model‐Free Predictive Direct Control of Unified Power Quality Conditioner Based on Ultra‐Local Model

IET Energy Systems Integration, Volume 7, Issue 1, January/December 2025.
ABSTRACT To enhance the robustness of the unified power quality conditioner (UPQC) with finite control set model predictive control (FCS‐MPC), direct control in the dq coordinate system faces challenges such as complex coordinate transformation, system coupling issue and phase‐locked‐loop delays.
Guifeng Wang, Jinling Ji, Xinxin Zhu, En Fang, Qigang Du, Chao Luo, Zhifang Lin   +6 more
wiley   +1 more source

Single-Phase Shunt Active Power Filter Based on a 5-Level Converter Topology

Energies, 2018
This paper presents a single-phase Shunt Active Power Filter (SAPF) with a multilevel converter based on an asymmetric full-bridge topology capable of producing five distinct voltage levels.
José Gabriel Oliveira Pinto, Rui Macedo, Vitor Monteiro, Luis Barros, Tiago Sousa, João L. Afonso   +5 more
doaj   +1 more source

Daily variations of water use with vapor pressure deficit in a plantation of I214 poplars. [PDF]

, 2009
Daily rates of whole tree water use were measured in a homogeneous 7-year-old plantation over 84 days. Two trees were selected in the two most contrasting ends, i.e., with mean water table at -1.5 m and -3.5 m. Results showed that the mean tree water use
Etienne Muller, Hogg, Lambs, Luc Lambs, McQueen, Stettler   +5 more
core   +4 more sources

Crack Segmentation Model Based on Deformable Convolution and Cross‐Stage Feature Fusion Network

IET Intelligent Transport Systems, Volume 19, Issue 1, January/December 2025.
YOLO‐RCS, an enhanced crack segmentation model based on YOLOv10, is designed to improve the detection of multi‐scale cracks in complex environments. By integrating a DCNv4 backbone and a novel C3FB module, our model achieves high precision and mean average precision (mAP) for road crack segmentation, addressing issues of missed and false detections ...
Mohammed Al‐Soswa, Zhaoyun Sun, Ali Desbi, Abdulkareem Abdullah   +3 more
wiley   +1 more source

Selective harmonic suppression strategy by SAPF in power distribution system

The Journal of Engineering, 2017
This study proposes a flexible selective harmonic compensation and resonance damping algorithm for shunt active power filter (SAPF) applied in three‐phase three‐wire power distribution system. The selective harmonic compensation current reference extraction is based on recursive discrete Fourier transform.
Liu Cong, Dai Ke, Chen Xinwen, He Yuqing, Lu Pingjiang   +4 more
openaire   +1 more source

Control of Photovoltaic‐Based Shunt Active Power Filter System Based on Optimal Operating Point Tracking of PV System for Harmonic Mitigation, Load Supply and Grid Current Injection

IET Renewable Power Generation, Volume 19, Issue 1, January/December 2025.
The proposed control strategy combines a search algorithm to find the optimal operating point for the photovoltaic system and a harmonic identification technique. The OOPT algorithm regulates the operating point to achieve an optimal trade‐off between photovoltaic power production and the desired functionalities.
Arnaud Nanfak, René Constant Fanjip, Luc Vivien Assiene Mouodo, Gildas Martial Ngaleu, Charles Hubert Kom   +4 more
wiley   +1 more source

Shunt Active Power Filter with Three Level Inverter using Hysteresis Current Controllers [PDF]

E3S Web of Conferences
This document introduces a Shunt Active Power Filter (SAPF) for three-phase three-wire systems, utilizing a Cascaded H Bridge Multilevel Inverter. The Hysteresis Current Control technique provides numerous benefits, including simplicity, minimal current ...
Raghutu Ramakrishna, Manoj Vasupalli, Kumar Yegireddy Narendra   +2 more
doaj   +1 more source

Finite control set model predictive control for a three-phase shunt active power filter with a kalman filter-based estimation [PDF]

, 2017
In this paper, the finite control set model predictive control is combined with the vector operation technique to be applied in the control of a three-phase active power filter.
Camacho Santiago, Antonio, Castilla Fernández, Miguel, García de Vicuña Muñoz de la Nava, José Luis, Guzmán Solà, Ramon, Miret Tomàs, Jaume   +4 more
core   +2 more sources

Robust PSO‐Optimized Power Control for Stand‐Alone Variable‐Speed DFIG Wind‐Based High Stability and Power Quality Enhancement: Hardware Investigation‐Based dSPACE1103

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
Wind energy conversion systems (WECSs) operating in stand‐alone mode are increasingly recognized as a promising solution for delivering reliable renewable electricity in remote areas. However, their performance is often hindered by sudden wind speed fluctuations and parameter variations, which can compromise both stability and power quality. To address
Fayssal Amrane, Oussama Gherouat, Bruno Francois, Hichem Itouchene, Khaled Ben Oualid Medani, Azeddine Chaiba, Youcef Belkhier, Panagiotis Grammelis   +7 more
wiley   +1 more source

Model Predictive Current Control for Low-Cost Shunt Active Power Filter

CSEE Journal of Power and Energy Systems
Performance of a three-phase shunt active power filter (SAPF) relies on the capability of the controller to track the reference current. Therefore, designing an accurate current controller is crucial to guarantee satisfactory SAPF operation.
Ali A. Abdel-Aziz, Mohamed A. Elgenedy, Barry W. Williams   +2 more
doaj   +1 more source