Results 11 to 20 of about 1,392,065 (265)
New Topology of a Hybrid, Three-Phase, Four-Wire Shunt Active Power Filter
With a view to reducing harmonic content in electrical power systems, and, consequently, improving power quality level, filters and other harmonic compensation devices are widely used.
Stefani Freitas +5 more
doaj +1 more source
Comprehensive Power Losses Model for Electronic Power Transformer
The electronic power transformer (EPT) has higher power losses than the conventional transformer. However, the EPT can correct the power factor, compensate the unbalanced current, and reduce the line power losses in the distribution network.
Quanyou Yue +6 more
doaj +1 more source
Voltage space vector‘s computation for current control in three phase converters
This work presents two current loop techniques, for three phase voltage source converters (VSC) used as controlled rectifiers (CR) operating at unity power factor.
Alberto Berzoy +2 more
doaj +1 more source
Organic Thermoelectric Multilayers with High Stretchiness
A stretchable organic thermoelectric multilayer is achieved by alternately depositing bilayers (BL) of 0.1 wt% polyethylene oxide (PEO) and 0.03 wt% double walled carbon nanotubes (DWNT), dispersed with 0.1 wt% polyacrylic acid (PAA), by the layer-by ...
Chungyeon Cho, Jihun Son
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +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
doaj +1 more source

