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Considering the influence of wires sag, towers, up-and-downs on the ground, surrounding buildings and other situations, the ionized field under HVDC transmission lines is actually a 3-D field and its calculation method is necessary to be found. In this paper, a method to calculate the 3-D ionized field was proposed to be based on the Deutsch assumption. After the validity of the method is testified,...
The electromagnetic environment of the high voltage direct current (HVDC) is much more complex than ever. The electromagnetic compatibility (EMC) of the printed circuit board (PCB) in the secondary equipments is the top priority. In this paper, finite integration theory (FIT) methods are applied to analyse the resisting electro magnetic interference (EMI) of the PCB in high frequency. The model bases...
In this paper, we analyzed the electromagnetic disturbance of plusmn 500 kV valve tower by electromagnetic field calculating software, which based on the instantaneous method, but also including the space electromagnetic field and the radio interference level. And then, we compare the radiated electric field strength with the relevant standards, its comparison with observed result is being studied...
In this paper we have applied TLM methods to the analysis of the effects of the slot with the structure of overlapping and riveting on the shielding effectiveness of shielding body. And we have verified its correctness from the algorithm and experiment. According to the simulation results, it is showed that handling the slot with a riveting and overlapping structure helps to suppress the leakage of...
A detailed analysis is presented of the spin-splitting in an interband-resonant-tunneling diode (I-RTD). In the framework of a six-band Kane model, the escape process of the heavy-hole valence electrons through the interband channel of a staggered-bandgap heterostructure is described. Numerical simulation results demonstrate the interband current to be highly polarized and define a new I-RTD based...
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