نتایج جستجو برای: Real-Time Electromagnetic Phenomena Calculation
تعداد نتایج: 2370185 فیلتر نتایج به سال:
This paper presents a distance protection test procedure by applying the Real-Time Digital Simulator (RTDS) of a power system. RTDS is a tool to design, develop, and test power-system protection. The RTDS enables real-time computation of electromagnetic phenomena with a calculation time step of even 50μs. The hardware allows the import and export of many signals from the simulator to an ext...
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THE NUMERICAL CALCULATION OF LOW FREQUENCY ELECTROMAGNETIC TRANSIENT PHENOMENA IN POWER TRANSFORMERS
In this article, a transformer model is presented that applicable to low frequency electromagnetic transient phenomena of up 1 kHz. An example the energization no-load analyzed. A simplifed analytical approach first. Due limitations approach, numerical introduced for solution stiff differential equations describe phenomena. both cases, algorithms have been developed generating waveforms state v...
We demonstrate the utility of three-dimensional 3D optical Wannier functions WF’s for quantitative description of electromagnetic wave localization and propagation in 3D photonic band gap PBG microcircuits. Using these localized “optical orbitals” we reconstruct electromagnetic waveguiding in bulk twodimensional 2D and 3D PBG materials, 2D-3D PBG heterostructures composed of 3D PBG structures i...
This paper presents a distance protection test procedure by applying the Real-Time Digital Simulator (RTDS) of a power system. RTDS is a tool to design, develop, and test power-system protection. The RTDS enables real-time computation of electromagnetic phenomena with a calculation time step of even 50μs. The hardware allows the import and export of many signals from the simulator to an externa...
In this paper we studied the focusing effect of electromagnetic wave in the two-dimensional graded photonic crystal consisting of Silicon rods in the air background with gradually varying lattice constant. The results showed that graded photonic crystal can focus wide beams on a narrow area at frequencies near the lower edge of the band gap, where equal frequency contours are not concave. For c...
The traditional model of the electromagnetic force and torque does not take the coil corners into account, which is the major cause for the motor fluctuation. To reduce the fluctuation, a more accurate real-time computation model, which considers the influence of the coil corners, is proposed in this paper. Three coordinate systems respectively for the stator, the mover, and the corner are esta...
this paper presents an approach to modeling of field penetration and gives contribution to understanding the real effects of the fields and the sensitivity of human model to electromagnetic radiation generated by mobile antenna. when a human body is exposed to the electromagnetic radiation, because human body contain 70% of liquid, and it contain more liquid near of head, heart, abdomen (near o...
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