Results 31 to 40 of about 2,773 (216)

A Hybrid HVDC Topology Suitable for Large-Scale Pure Clean Energy Power Base Transmission

Zhongguo dianli, 2023
In order to meet the transmission needs of large-scale pure new energy power bases, after topology comparison, this paper used a hybrid cascaded topology consisting of a line commutated converter (LCC) and a modular multilevel converter (MMC) in the ...
Wenzhe XU, Zheren ZHANG, Zheng XU
doaj   +1 more source

Research on Control Strategy of Voltage Source Full Power Wind Power Converter

Kongzhi Yu Xinxi Jishu, 2023
In the operating environment of power system with weak grid characteristics, the traditional current source converter control mode is prone to vibration, which increases the crossing difficulty and off-grid probability of wind turbines.
ZHOU Wang, HE Xi, LI Bingzhang, PENG Yun, CHEN Long, DAI Xixi   +5 more
doaj   +3 more sources

A Generalized Load Model Considering the Fault Ride-Through Capability of Distributed PV Generation System

Energies
Considering the voltage stability problem brought by large-scale distributed PV access to the distribution network, this paper proposes a generalized load model that considers the fault ride-through capability of distributed PV.
Haiyun Wang, Qian Chen, Linyu Zhang, Xiyu Yin, Han Cui, Zhijian Zhang, Huayue Wei, Xiaoyue Chen   +7 more
doaj   +1 more source

Fault Traversal Strategy for Large-scale Photovoltaic Power Station via Flexible DC Grid-connected System

工程科学与技术, 2023
Large-scale PV adopts DC overhead lines for flexible DC grid connection is one of the trends of new energy grid-connected in the future. However, the high probability of DC short-circuit fault of overhead line can easily lead to the disconnection of ...
Yinfeng SUN, Rong LI, Jinxin LIU, Guoqing LI, Zhenhao WANG, Xueguang WU   +5 more
doaj  

Mechanical Switch Based Adaptive Fault Ride-through Strategy for Power Quality Improvement Device

Energies, 2021
Cascaded H-bridge power quality improving device (PQID) has garnered extensive attention for its flexible electric energy conversion and fast voltage response.
Yu Shen, Wei Hu, Yaoyao Xiao, Ganghua Zhang, Mingyu Han, Fan Yang, Wenping Zuo   +6 more
doaj   +1 more source

Addressing Economic Insecurities Can Improve Patient‐Reported Outcomes in Lupus

Arthritis Care &Research, EarlyView.
Objective Economic insecurities, such as food, housing, transportation, and financial challenges, are modifiable risk factors and influence patient‐reported outcomes (PROs) in systemic lupus erythematosus (SLE). We examined the following: (1) associations between economic insecurities and PROs, and (2) the impact of screening and addressing economic ...
Jay Patel, Tripti Singh, Meredith Ingersoll, Shelby Gomez, Amanda Weber, Sarah E. Panzer, Sancia Ferguson, Christie M. Bartels, Shivani Garg   +8 more
wiley   +1 more source

Fault Ride-Through Operation Analysis of Doubly Fed Induction Generator-Based Wind Energy Conversion Systems: A Comparative Review

Energies, 2022
In present electrical power systems, wind energy conversion systems based on doubly fed induction generators represent one of the most commonly accepted systems in the global market due to their excellent performance under different power system ...
Aftab Ahmed Ansari, Giribabu Dyanamina
doaj   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Fault Ride-through Hybrid Controller for MMC-HVDC Transmission System via Switching Control Units Based on Bang-bang Funnel Controller

Journal of Modern Power Systems and Clean Energy, 2023
This paper proposes a fault ride-through hybrid controller (FRTHC) for modular multi-level converter based high-voltage direct current (MMC-HVDC) transmission systems. The FRTHC comprises four loops of cascading switching control units (SCUs).
Yang Liu, Zehui Lin, Chenying Xu, Lei Wang   +3 more
doaj   +1 more source

Magnetic‐Field Control of Surface States in CoFe2O4 Thin Films for Nitrate Electroreduction to Ammonia

Advanced Functional Materials, EarlyView.
Magnetic‐field‐assisted CVD of heterometallic single‐source precursors modulates thin‐film surface electronic structure and interfacial charge transfer. Field‐grown (Cobalt ferrite‐1T)CF‐1T films exhibit stabilized electronic states, lower kinetic barriers, and markedly enhanced nitrate‐to‐ammonia electrocatalysis versus (Cobalt ferrite‐0T) CF‐0T ...
Touraj Karimpour, Younes Mousazade, Simon Diel, Shilendra Kumar Sharma, Tisita Das, Nathália C. Verissimo, Thomas Fischer, Ziyaad Aytuna, Andreas Lichtenberg, Sudip Chakraborty, Marcel Risch, Sanjay Mathur   +11 more
wiley   +1 more source