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Numerical Electromagnetic Analysis Methods and its Applications to Surge Phenomena

机译:数值电磁分析方法及其在电涌现象中的应用

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Full-wave numerical electromagnetic analysis (NEA) methods are defined as methodologies allowing the direct numerical solution of Maxwell’s equations in both frequency and time domain. These methods are becoming the most promising approach to study complex transient phenomena that cannot be straightforwardly solved by means of circuit-theory or transmission line approaches (e.g.by using Electromagnetic Transient Program -EMTP).Indeed, as known, circuittheory/ transmission line based approaches cannot solve transients that involve non-TEM propagation modes.Furthermore, they cannot be applied in case of unknown circuit parameters.Within the context of NEA, this paper describes the basic theory of the finite-difference time-domain (FDTD) method as a representative NEA method.Also, some typical examples are presented to demonstrate its usefulness and advantages.
机译:全波数值电磁分析(NEA)方法定义为可在频域和时域中直接对麦克斯韦方程组进行数值解的方法。这些方法正成为研究复杂瞬态现象的最有前途的方法,这些瞬态现象无法通过电路理论或传输线方法(例如,使用电磁暂态程序-EMTP)直接解决。实际上,众所周知,基于电路理论/传输线的方法不能解决涉及非TEM传播模式的瞬态问题,此外,在电路参数未知的情况下也不能应用这些瞬态问题。在NEA的背景下,本文将有限差分时域(FDTD)方法的基本理论描述为:具有代表性的NEA方法。此外,还提供一些典型示例来证明其有用性和优势。

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