نتایج جستجو برای: electromagnetic compatibility emc
تعداد نتایج: 104456 فیلتر نتایج به سال:
The development of renewable energy systems interfaced with the grid by power electronic converters leads to increasing issues electromagnetic coexistence between and communication lines, as well severe quality issues, such total harmonic distortion at consumer side. Therefore, high-frequency modeling is great importance guide design distribution networks involving sources. Owing system complex...
In this article, a theoretical model on the cumulation of noise, generated by large numbers man-made noise (MMN) sources in several types residential environments, has been developed. The is based extensive propagation measurements and verified earlier field strength measurements. From applying it appears that MMN sources, emitting powers equals mains port conductive disturbance limits electrom...
The accurate knowledge of the antenna factor is a fundamental requirement for reliable electromagnetic compatibility (EMC) measurements in emissions, immunity and human exposure tests. According to international standards, this would imply calibrating antennas in close-to-ideal test sites (calibration test sites), characterized by very large sizes of the ground plane and of the empty space volu...
The STAR experiment at RHIC is a large acceptance detector. The ElectroMagnetic Calorimeter (EMC) will provide a sensitive trigger to study high pt jets and hard photons in AuAu, pp, and pAu collisions. The capability for the EMC to trigger on jets and direct photons was studied for trigger level 0. Trigger efficiencies and expected process rates were obtained for pp and pAu reactions, which wi...
The article deals with the issue of electromagnetic disturbances caused by electromechanical relays. Electromagnetic compatibility (EMC) is important for reliable work electrical and electronic devices. Our research focused on low-voltage relay, which source fast transients (EFT)/burst disturbances. voltage current waveforms were tested constructed stand while opening relays’ contacts. We inves...
Switch-mode power converters (SMPCs) are known as one of the greatest sources of electromagnetic interference (EMI) in electronic equipments. In order to comply with the strict electromagnetic compatibility (EMC) requirements, an EMI filter is needed at the input of a SMPC. The design of EMI filters aims at achieving required insertion loss (IL), i.e. attenuation of the power of the unwanted el...
This paper investigates the near field, far field and conducted electromagnetic emissions in a pulsed power supply circuit for a flash lamp pumped solid-state laser amplifier. The power supply consists of a charging circuit, which energizes 300 μF of energy storage capacitor bank to 3 kV. The stored energy is discharged through a flash lamp in the form of pulsed current. It is a single shot eve...
Even though today’s electromagnetic compatibility (EMC) standards and measurement techniques set specific limitations a clear methodology to measure the conducted emissions (CE) of equipment under tests (EUTs), design suitable power-line filter (PLF) solve non-compliance is, in general, neither accurate nor efficient. This is due different reasons, such as unknown actual load line impedances, d...
Today, electric drive systems based on frequency converters with active front-end rectifiers (FC-AFEs) are widespread across industries. In the course of upgrade production facilities, such replace conventional thyristor- and diode-based rectifiers. FC-AFEs have following advantages: capacity to regenerate power grid operate at set factor. The manufacturers also claim that their products best e...
To characterize the electromagnetic compatibility (EMC) of integrated circuits (ICs), especially radiated emissions in near field, transversal cell (TEM cell) or IC-stripline measurements (IEC 61967) are utilized. Due to ongoing miniaturization and increasing operating frequencies, accurate EMC characterization ICs is becoming more important achieve first-time-right designs. In order avoid expe...
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