Results 31 to 40 of about 3,882,562 (249)

Sub-Synchronous Oscillation Suppression Based on VSG Virtual Impedance Feasible Domains

南方能源建设
[Objective] The virtual synchronous generator (VSG) system exhibits negative damping characteristics under weak grid connection, which triggers subsynchronous oscillations and leads to system instability.
Yuxin SUN, Qin SUN, Yi DU
doaj   +1 more source

Current coordinated distribution and voltage optimization control for multi-VSGs system considering nonlinear and negative sequence loads

Frontiers in Energy Research
In a microgrid system where multiple virtual synchronous generators (VSGs) are interconnected through high impedance cables, the total output negative sequence and harmonic current of multiple VSGs cannot be coordinated based on the capacity of each ...
Luyao Xie, Yu Zhang, Youbing Zhang, Yi Chen, Bo Wang   +4 more
doaj   +1 more source

Study of a virtual-impedance of the capacitor-series inverter for wider accurate power control range

Energy Reports, 2022
A droop control method with virtual-impedance for capacitor-series inverter (CSI) is studied in this paper. Compared with the traditional inverters, CSI has more merits in low-cost reactive power compensation.
Wenyang Deng, Ziwen Liu, Hao Qin, Mingli Chen, Yongjun Zhang   +4 more
doaj   +1 more source

On the Passivity Based Impedance Control of Flexible Joint Robots [PDF]

, 2008
In this paper, a novel type of impedance controllers for flexible joint robots is proposed. As a target impedance, a desired stiffness and damping are considered without inertia shaping.
Hirzinger, Gerd, Albu-Schäffer, Alin Olimpiu, Albu-Schäffer, Alin, Ott, Christian, Kugi, Andreas, Kugi, A.   +5 more
core   +1 more source

A Power Coordinated Control Method for Islanded Microgrids Based on Impedance Identification

Energies
Droop control is an effective power regulation method for islanded microgrids to cope with fluctuations in renewable energy and loads. However, its power coordination performance is easily affected by the line impedance.
Yifan Wang, Shaohua Sun, Zhenwei Li, Runxin Yan, Ruifeng Xiao   +4 more
doaj   +1 more source

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

FEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa, Akira Hattori, Masafumi Tsujimoto, Toshihide Kobayashi   +3 more
wiley   +1 more source

Acoustic Vector-Corrected Impedance Meter [PDF]

, 2014
We describe the development of a novel instrument intended for the measurement of the acoustical reflection coefficient of materials. The instrument effectively implements a one-port vector-corrected network analyzer in the acoustic, rather than the ...
Scott, Jonathan B., Pennington, Kyle
core   +1 more source

Profiling neoadjuvant therapy response in rectal cancer using meta‐analysis of publicly available transcriptomic RNA‐seq datasets

Molecular Oncology, EarlyView.
This study integrates publicly available transcriptomic datasets to identify molecular signatures associated with response to neoadjuvant chemoradiotherapy in locally advanced rectal cancer. By analyzing a combination of multiple cohorts with bioinformatics approaches, we reveal biological pathways and immune‐related features that may improve ...
Aleksandra Stanojevic, Rafael Stroggilos, Mladen Marinkovic, Ana Djuric, Suzana Stojanovic‐Rundic, Radmila Jankovic, Sergi Castellvi‐Bel, Remond J.A. Fijneman, Antonia Vlahou, Jerome Zoidakis, Milena Cavic   +10 more
wiley   +1 more source

Integrating Patient‐Reported Quality Measures in Systemic Lupus Erythematosus: Development of the American College of Rheumatology Implementation Guide

Arthritis Care &Research, EarlyView.
Objective To support high‐quality, patient‐centered care for systemic lupus erythematosus (SLE), the American College of Rheumatology (ACR) developed evidence‐based measures incorporating clinical and patient‐reported outcome measures (PROMs). Using the Consolidated Framework for Implementation Research (CFIR), we conducted semistructured interviews ...
Catherine Nasrallah, Cherish Wilson, Christine Hariz, Christie M. Bartels, Shanthini Kasturi, Wambui Machua, Amy Bennett, Kate Chiseri, Allison Plitman, Starla Hairston Blanks, April Jorge, Patti Katz, Jinoos Yazdany, Shivani Garg   +13 more
wiley   +1 more source

A current limiting strategy for grid-forming converters based on voltage deviation adaptive virtual impedance

International Journal of Electrical Power & Energy Systems
Grid-forming (GFM) converters face the risk of saturation under large disturbances, which will degrade the stability performance of the system. Most existing adaptive virtual impedance methods generate virtual impedance based on current limit values ...
Longyue Wang, Pengfei Hu, Weixuan Zhang
doaj   +1 more source