Results 21 to 30 of about 5,760,690 (297)
From Smart Metering to Smart Grid
The paper deals with evaluation of measurements in electrical distribution systems aimed at better use of data provided by Smart Metering systems. The influence of individual components of apparent power on the power loss is calculated and results of ...
Kukuča Peter, Chrapčiak Igor
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Voltage regulation using three phase electric spring by fuzzy logic controller
Introduction. The renewable energy sources such as solar and wind power have increased significantly in recent years. However, as the generation of renewable energy has become more integrated, its intermission and instability have a major impact on the ...
A. Ikhe, Y. Pahariya
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Digital Current-Control Schemes [PDF]
The paper is about comparing the performance of digital signal processor-based current controllers for three-phase active power filters. The wide use of nonlinear loads, such as front-end rectifiers connected to the power distribution systems for dc ...
Bojoi, Iustin Radu +3 more
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Electrified railways contain DC devices and cause power quality (PQ) issues such as harmonics, unbalance, and low-power factor, which should be solved by the most effective compensation technology to reduce the cost.
Yizheng Xu +3 more
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Discounted Costs Range Criterion Modification for Controlled Asynchronous Electric Drives
A range criterion of discounted costs is proposed, which takes into account all costs for a speed-controlled asynchronous electric drive, including its price, costs of losses and maintenance, and amortization charges.
Victor Petrushin +4 more
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Thermoelectric transport in strained Si and Si/Ge heterostructures
The anisotropic thermoelectric transport properties of bulk silicon strained in [111]-direction were studied by detailed first-principles calculations focussing on a possible enhancement of the power factor.
Bass J M +13 more
core +1 more source
Can High Frequency Acoustic Waves Heat the Quiet Sun Chromosphere? [PDF]
We use Hinode/SOT Ca II H-line and blue continuum broadband observations to study the presence and power of high frequency acoustic waves at high spatial resolution.
Carlsson, Mats +11 more
core +1 more source
State-of-the-Art Power Factor Correction: An Industry Perspective
On 1 January 2001, the IEC 61000-3-2 regulation became effective. Since then, mitigating current harmonics has been essential to ensure that electronic equipment connected to single-phase power distribution lines conforms to electromagnetic compatibility
Claudio Adragna +3 more
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Energetic Factors of a Frequency-Controlled Synchronous Electric Drive
As compared to asynchronous frequency-controlled electric drives, synchronous drives are characterized by lower power losses, rigid mechanical characteristics without speed feedback and by the simplest law of frequency control (when the voltage changes ...
B. I. Firago, S. V. Aleksandrovsky
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Impact of photovoltaic grid-tied systems on national grid power factor in Palestine
Residential photovoltaic systems are a cost-effective solution for Palestinians to reduce their power costs while improving the environment. Despite their numerous advantages, these systems have several negative effects on the entire electric grid ...
Amer Braik +4 more
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