无插值仿真平台中抑制数值振荡的阻尼电路设计方法  

Design of damping circuit for depressing numerical oscillation in interpolation-free simulation environment

作　　者：姬煜轲 许建中[1] 徐延明[1] 赵成勇[1] 

机构地区：[1]华北电力大学新能源电力系统国家重点实验室,北京102206

出　　处：《电力自动化设备》2016年第7期143-149,共7页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(51177042);国家高技术研究发展计划(863计划)资助项目(2013AA050105)~~

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。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.

关 键 词：数值振荡 电磁暂态 梯形积分法 RC阻尼电路 Simplex算法 量化函数 

分 类 号：TM743[电气工程—电力系统及自动化]