Results 101 to 110 of about 167,660 (319)

A Weighted Control Strategy Based on Current Imbalance Degree for Vienna Rectifiers Under Unbalanced Grid

Machines
Under unbalanced grid conditions, the three-phase Vienna rectifier exhibits significant voltage fluctuations in dc-link and asymmetric input currents. Traditional control methods cannot simultaneously suppress the voltage ripples in dc-link and balance ...
Haigang Wang, Zongwei Liu, Muqin Tian
doaj   +1 more source

Overview of three-phase inverter topologies for distributed generation purposes [PDF]

, 2010
The increasing presence of single-phase distributed generators and unbalanced loads in the electric power system may lead to unbalance of the three phase voltages, resulting in increased losses and heating.
De Kooning, Jeroen, Degroote, Lieven, Meersman, Bart, Renders, Bert, Vandevelde, Lieven, Vandoorn, Tine   +5 more
core   +1 more source

Distribution System State Estimation in the Presence of High Solar Penetration

, 2019
Low-to-medium voltage distribution networks are experiencing rising levels of distributed energy resources, including renewable generation, along with improved sensing, communication, and automation infrastructure.
Kundu, Soumya, Nandanoori, Sai Pushpak, Ramachandran, Thiagarajan, Reiman, Andrew, Rice, Mark   +4 more
core   +1 more source

Control strategy for PV inverter under unbalanced grid voltage

Dianzi Jishu Yingyong, 2018
To enhance the operation performance of the PV inverter under unbalanced grid voltage, this paper proposes a control strategy, which is based on negative sequence voltage feed forward, to make the output current of the inverter balanced and sinusoidal.
Ouyang Sen, Ma Wenjie
openaire   +1 more source

A Soft Matrix Microenvironment Promotes Laterally Spreading Tumors via Oxidative Phosphorylation‐Dependent Cell Adhesion

Advanced Science, EarlyView.
Laterally spreading tumors (LSTs) are precancerous colorectal lesions characterized by a flat morphology. This study reveals a mechanochemical pathway through which a soft matrix microenvironment diminishes spatial constraints in intestinal adenomas. This process promotes deficiencies in tight junction proteins, mediated by the mechanoreceptor ADORA2B ...
Jiamin Zhong, Jingyi Lu, Haopeng Li, Jun Zhong, Xiaobei Luo, Yiyi Hu, Xianfei Wang, Pengfei Wang, Yanning Zhang, Zhenjiang Wang, Qiuhua Lai, Zhenyu Chen, Wenting Mi, Wang Tin San‐to, Weize Li, Shuping Tan, Qihong Cheng, Ruijia Li, Yida Nie, Side Liu, Bing Huang, Zelong Han   +21 more
wiley   +1 more source

Fault Ride-Through Enhancement of Grid Supporting Inverter-Based Microgrid Using Delayed Signal Cancellation Algorithm Secondary Control

Energies, 2019
The growing level of grid-connected renewable energy sources in the form of microgrids has made it highly imperative for grid-connected microgrids to contribute to the overall system stability.
Elutunji Buraimoh, Innocent E. Davidson, Fernando Martinez-Rodrigo   +2 more
doaj   +1 more source

Smart grids for rural conditions and e-mobility - Applying power routers, batteries and virtual power plants [PDF]

, 2016
Significant reductions of greenhouse gas emission by use of renewable energy sources belong to the common targets of the European Union. Smart grids address intelligent use and integration of conventional and renewable generation in combination with ...
Boehner, Volker, Franz, P., Gallart, R, Girbau Llistuella, Francesc, Hanson, J., Martínez, S., Sumper, Andreas   +6 more
core  

Integrating Radiomics and Computational Pathology to Predict Early Recurrence of Pancreatic Ductal Adenocarcinoma and Uncover Its Biological Basis in Tumor Microenvironment

Advanced Science, EarlyView.
Accurate prediction of early recurrence in pancreatic ductal adenocarcinoma is vital for optimizing treatment. A novel, integrated radiomics‐pathology machine learning model successfully forecasts recurrence risks by analyzing preoperative CT images and computational pathology.
Sihang Cheng, Fuze Cong, Shenbo Zhang, Rui Lv, Wenjia Zhang, Xinyi Ke, Juncheng Wu, Zhonghe Zhao, Kui Zhao, Di Dong, Ruofan Zhang, Zhengyu Jin, Max Seidensticker, Zhiwei Wang, Huanwen Wu, Xianlin Han, Nan Hong, Huadan Xue   +17 more
wiley   +1 more source

A Reduced DC-Link Voltage-Based NSC Topology for an On-Grid PEMFC Microgrid Capable of Handling Unbalanced Load Conditions and Grid Disturbances

IEEE Access
This article presents a nine-switch converter-based on-grid proton exchange membrane fuel cell microgrid system and its control with a reduced DC-link voltage requirement for the NSC. With the proposed topology, the do link voltage requirement of the NSC
Swagat Pati, Amar Bijay Nanda, Kalpana Bijayeeni Samal, Futa Osumanu, Abhijeet Choudhury   +4 more
doaj   +1 more source

Improved virtual synchronous control for grid-connected VSCs under grid voltage unbalanced conditions

Journal of Modern Power Systems and Clean Energy, 2018
Abstract This paper presents an improved virtual synchronous control (VSynC) for the grid-connected voltage source converter (VSC) so as to continuously operate under the grid voltage with steady unbalance. The improved VSynC introduces the negative sequence power controls on basis of conventional VSynC.
Lei SHANG, Jiabing HU, Xiaoming YUAN, Yunhui HUANG   +3 more
openaire   +2 more sources