Results 71 to 80 of about 53,735 (264)

Research on the control strategy of distributed energy resources inverter based on improved virtual synchronous generator

Scientific Reports, 2017
This paper focus on the power fluctuations of the virtual synchronous generator(VSG) during the transition process. An improved virtual synchronous generator(IVSG) control strategy based on feed-forward compensation is proposed.
Changwei Gao, Xiaoming Liu, Hai Chen
doaj   +1 more source

Research on Robust Day-Ahead Dispatch Considering Primary Frequency Response of Wind Turbine

Applied Sciences, 2019
With the large-scale integration of renewable energy sources (e.g., wind power), the system inertial response and primary frequency regulation are affected.
Rong Sun, Bing Chen, Zhenhua Lv, Jianchun Mei, Haixiang Zang, Zhinong Wei, Guoqiang Sun   +6 more
doaj   +1 more source

ZBTB21 Is a Dual Suppressor of Pyroptosis and MHC‐I Antigen Presentation That Promotes Tumor Immune Evasion

Advanced Science, EarlyView.
ZBTB21 is a transcription factor that epigenetically suppresses pyroptosis and MHC‐I antigen presentation, enabling tumor immune evasion. Genetic ablation of ZBTB21 activates pyroptotic cell death and enhances antigen presentation, recruiting CD8+ T cells to overcome immune checkpoint blockade resistance.
Lei Zhao, Linlin Sheng, Jianhao Qiu, Junjie Ma, Kai Jin, Binggong Zhao, Tianrun Miao, Jing Chen, Yehong Li, Zhan Zhang, Dongfeng Sun, Yongmeng Li, Hui Tian   +12 more
wiley   +1 more source

Active and reactive power sharing control strategy for VSGs in microgrid considering the different capacities of distributed energy resources

IET Cyber-Physical Systems, 2018
Since the concept that inverters can be controlled to behave like a synchronous generator has been proposed, the virtual synchronous generator (VSG) started to become the mainstream control of distributed energy resources connected distributed system ...
Sara Yahia Altahir, Xiangwu Yan, Abuzaid Saeed Gadalla   +2 more
doaj   +1 more source

A Comparative Analysis of Prominent Virtual Synchronous Generator Strategies Under Different Network Conditions

IEEE Open Access Journal of Power and Energy
The virtual synchronous generator (VSG) is the most widely used grid-forming inverter (GFMI) control technique. The VSG can provide enhanced ancillary services and improved dynamic response compared to conventional synchronous generators and grid ...
Chalitha Liyanage, I. Nutkani, Lasantha Gunaruwan Meegahapola   +2 more
semanticscholar   +1 more source

ALKBH3 m1A Demethylase Deficiency Reduces Alzheimer's Amyloid‐β Pathology

Advanced Science, EarlyView.
This study identifies that ALKBH3‐driven m1A demethylation orchestrates Alzheimer's disease progression by disrupting mitochondrial and synaptic homeostasis. This epitranscriptomic mechanism suppresses PINK1‐mediated mitophagy via m1A erasure, leading to mitochondrial dysfunction, oxidative stress, elevated Aβ production, and impaired microglial ...
Yueyang Li, Sifei Yu, Kaidong Lu, Yujie Zhang, Mingjie Dong, Yan Peng, Liang Xue, Waleed Alam, Yuxuan Shui, Yi Zhou, Wuyunhan Ma, Meng Bao, Peiming Li, Peiyi Luo, Tiezhan Lu, Jiajia Li, Kang Zhang, Yuying Wang, Shuchen Yang, Nuoya Yin, Francesco Faiola, Zilong Gao, Jingfeng Zhou, Fei Zhao, Yali He, Magdalena J. Koziol   +25 more
wiley   +1 more source

European guidelines from the EHTG and ESCP for Lynch syndrome: an updated third edition of the Mallorca guidelines based on gene and gender

BJS (British Journal of Surgery), EarlyView., 2020
Recommendations for clinical and molecular identification of LS, surgical and endoscopic management of LS‐associated colorectal cancer and preventive measures for cancer were produced. The emphasis was on surgical and gastroenterological aspects of the cancer spectrum.
T. T. Seppälä, A. Latchford, I. Negoi, A. Sampaio Soares, R. Jimenez‐Rodriguez, L. Sánchez‐Guillén, D. G. Evans, N. Ryan, E. J. Crosbie, M. Dominguez‐Valentin, J. Burn, M. Kloor, M. von Knebel Doeberitz, F. J. B. van Duijnhoven, P. Quirke, J. R. Sampson, P. Møller, G. Möslein, on behalf of the European Hereditary Tumour Group (EHTG) and European Society of Coloproctology (ESCP)   +18 more
wiley   +1 more source

Optimizing virtual synchronous generator control in MMC-based HVDC systems for power system oscillation damping

Results in Engineering
This paper discusses the development of a Virtual Synchronous Generator utilizing a Modular Multilevel Converter. The control system employs an internal simulation of the electromechanical swing equation to replicate the inertia and damping ...
Chethan M․, Ravi K
doaj   +1 more source

Research on pre-synchronization control strategy of the micro-grid with multi-VSG

Global Energy Interconnection, 2018
Seamless switching is an important guarantee for the inverter to work continuously without stopping when grid-connected power generation system is the transient process from grid-connected to isolated island and from isolated island reclosing.
Tao Yan, Cairan Wang, Zong Liu, Shaohua Xu, Yu Ba, Juntao Fei, Jerry Y.S. Lin   +6 more
doaj   +1 more source

Smart Optogenetics for Real‐Time Automated Control of Cardiac Electrical Activity

Advanced Science, EarlyView.
We are able to stop dangerous heart‐rhythm spirals before they fully form. Within about 100 ms, it pinpoints the spiral's tiny central tip (≈0.9 mm) using light‐based sensing and machine learning, then shines targeted light to shut it down. This fast, precise, closed‐loop approach detects, targets, and terminates arrhythmias in real time.
Shanliang Deng, Niels Harlaar, Juan Zhang, Sven O. Dekker, Nina N. Kudryashova, Huiling Zhou, Cindy I. Bart, TianYi Jin, Georgy Derevyanko, Willem van Driel, Alexander V. Panfilov, René H. Poelma, Antoine A. F. de Vries, GuoQi Zhang, Tim De Coster, Daniël A. Pijnappels   +15 more
wiley   +1 more source