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中文摘要：
阐述及复现了普遍存在于电磁暂态仿真中的数值振荡问题，罗列了现有电磁暂态仿真程序应对此问题的解决方法，并从应用场合、计算代价、编程复杂度等多个方面分析了局限性。在此基础上提出了一种适用于无插值功能的仿真平台中的用于抑制数值振荡的RC阻尼电路设计方法。从数值振荡的机理入手分析其有效性，提出了描述数值振荡剧烈程度的量化函数，并将其与Simplex算法相结合对RC电路的配置进行优化．大幅提高了阻尼电路对数值振荡的抑制效果。结合不同仿真步长下的多次测试，对仿真步长、数值振荡和阻尼电路三者之间的关系进行了进一步分析。
英文摘要：
The numerical oscillation widely exiting in the electromagnetic transient simulation is introduced and reconstructed,the solutions of exiting electromagnetic transient programs to depressing it are listed,and their limitations are analyzed in the application condition,computational cost and programing complexity, based on which,a method of RC damping circuit design is proposed to depress the numerical oscillation in the interpolation-free simulation environment. Its effectiveness is analyzed by studying the mechanism of numerical oscillation and a quantitative function is proposed to describe the intensity of numerical oscillation,which is combined with the Simplex algorithm to optimize the configuration of RC circuit for enhancing the effect of oscillation suppression. The relations among oscillation and RC damping circuit are analyzed based on the simulative lengths. simulation step length, numerical results for different simulation step lengths.
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