Results 101 to 110 of about 1,151,601 (306)

Power Efficient Voltage Regulation System for Improved Power Generation in Wind Mills [PDF]

open access: yesE3S Web of Conferences
The power distribution systems with the wind energy backup have been well studied. There exist number of approaches in regulating required voltage for the electrical devices which uses only few parameters like number of connections, number of devices and
Vij Priya, Yadav Kamlesh Kumar
doaj   +1 more source

Adsorbate induced enhancement of electrostatic non-contact friction [PDF]

open access: yes, 2005
We study the non-contact friction between an atomic force microscope tip and a metal substrate in the presence of bias voltage. The friction is due to energy losses in the sample created by the electromagnetic field from the oscillating charges induced ...
A. I. Volokitin   +4 more
core   +2 more sources

Evaluation of the voltage support strategies for the low voltage grid connected PV generators

open access: yes2010 IEEE Energy Conversion Congress and Exposition, 2010
Admissible range of grid voltage is one of the strictest constraints for the penetration of distributed photovoltaic (PV) generators especially connection to low voltage (LV) public networks. Voltage limits are usually fulfilled either by network reinforcements or limiting of power injections from PVs.
Demirok, Erhan   +4 more
openaire   +4 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Optimal Transient Control Scheme for Grid-Forming Permanent Magnet Synchronous Generator-Based Wind Farms

open access: yesTechnologies
In this paper, an optimal transient control (OTC) scheme is proposed to improve the transient stability of the grid-forming (GFM) wind farm (WF) based on the transient stability of the WTs.
Pan Hu, Dan Liu, Kan Cao, Lai Wei
doaj   +1 more source

Unbalanced load flow with hybrid wavelet transform and support vector machine based Error-Correcting Output Codes for power quality disturbances classification including wind energy [PDF]

open access: yes, 2019
Purpose. The most common methods to designa multiclass classification consist to determine a set of binary classifiers and to combine them. In this paper support vector machine with Error-Correcting Output Codes (ECOC-SVM) classifier is proposed to ...
Bouktir, Tarek   +2 more
core   +3 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Reactive power optimization method for 100% renewable energy power systems considering energy storage control

open access: yes电力工程技术
This paper addresses issues of large power fluctuations and low voltage levels in 100% renewable energy power systems without synchronous power support.
Yang ZHANG   +5 more
doaj   +1 more source

Research on the Weak-Bus Voltage Support Effect of Energy Storage Type Intelligent Soft Open Point

open access: yesEnergies
With the integration of a high proportion of distributed generators (DGs), the imbalance between source and load power intensifies, causing the distribution grid to become ‘weak’ during certain periods, which can easily lead to voltage over-limit for the
Tao Yan, Teng Li, Zerong Liang
doaj   +1 more source

Waveform-level time-domain simulation comparison study of three shipboard power system architectures [PDF]

open access: yes, 2012
Detailed waveform-level modeling and simulation of three alternative shipboard power system architectures is presented herein. The three system architectures are based on conventional 60Hz medium-voltage ac (MVAC), higherfrequency 240Hz medium-voltage ac
Crider, J.   +9 more
core  

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