Results 91 to 100 of about 7,965 (345)

A Grid Connected Photovoltaic Generation System With Compensation Of Current Harmonics And Voltage Sags

open access: yesEletrônica de Potência, 2006
This paper presents a system that provides photovoltaic generation as well as the ability to compensate current harmonics and voltage sags. The system can be controlled for current harmonics and reactive power compensation simultaneously by using a ...
Marcelo Cabral Cavalcanti   +5 more
doaj   +1 more source

Sex Prediction From the Clavicle Using Computerized Tomography Images via Traditional and Hybrid Deep Learning Models

open access: yesClinical Anatomy, EarlyView.
ABSTRACT The aim of this study is to perform high accuracy sex prediction from clavicle images using proposed hybrid deep learning models and traditional deep learning models. The clavicle of 807 female and 805 male individuals obtained from Computed Tomography were segmented in 3D format and saved in jpeg format as superior–inferior and right–left ...
Yusuf Secgin   +8 more
wiley   +1 more source

Feed-Forward Control Strategy for the VSC of DVR for Smooth and Clean Power Flow to Load [PDF]

open access: yesMehran University Research Journal of Engineering and Technology, 2012
VSC (Voltage Source Converter) feed-forward control strategy of DVR (Dynamic Voltage Restorer) for an in-phase voltage injection scheme is proposed in this paper to tackle not only voltage sags and swells in the utility supply but also phase jumps as ...
Aamir Hanif   +2 more
doaj  

New voltage sag detection based on phase angle analysis for the new topology of voltage sag compensator

open access: yesIEICE Electronics Express, 2010
This paper implements two main works. First, a new voltage-sag detection technique based on phase-angle analysis is proposed. It is simple to implement and able to detect and compensate sag the moment it occurs. Second, a new topology of voltage sag compensator is introduced.
Nasrudin Abd. Rahim, Muhamad Bin Mansor
openaire   +2 more sources

Voltage sags mitigation techniques analysis [PDF]

open access: yes, 2007
For some decades, power quality did not cause any problem, because it had no effect on most of the loads connected to the electric distribution system. When an induction motor is subjected to voltage sag, the motor still operates but with a lower output ...
Saudin, Norshafinash
core  

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

open access: yesDeep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza   +4 more
wiley   +1 more source

Mitigation of Unbalanced Voltage Sags and Voltage Unbalance in CIGRE Low Voltage Distribution Network [PDF]

open access: yes, 2013
Any problem with voltage in a power network is undesirable as it aggravates the quality of the power. Power electronic devices such as Voltage Source Converter (VSC) based Static Synchronous Compensator (STATCOM) etc.
Mustafa, Ghullam   +3 more
core   +1 more source

Research on the Impacts of Voltage Sag to Lighting Fixture

open access: yesKongzhi Yu Xinxi Jishu, 2011
Based on ms level voltage sag generator, the performances on voltage sags of lamps occurred in different amplitudes, phase angles, durations are researched.
于希娟, 李洪涛, 赵贺
doaj  

Performance Comparison of Grid-Faulty Control Schemes for Inverter-Based Industrial Microgrids

open access: yesEnergies, 2017
Several control schemes specifically designed to operate inverter-based industrial microgrids during voltage sags have been recently proposed. This paper first classifies these control schemes in three categories and then performs a comparative analysis ...
Antonio Camacho   +6 more
doaj   +1 more source

Propagation of voltage sags in industrial power networks [PDF]

open access: yes, 2010
The paper analyzes the propagation of voltage sags through the distribution network of an industrial company. For this, power quality is monitoring in high voltage, 44kV, and low voltage, 400V. The theory of M.
Delgado San Román, Fernando   +5 more
core   +1 more source

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