基于多项式混沌方法的场线耦合响应不确定度量化
发布时间:2018-08-31 21:08
【摘要】:摘要:在传输线场线耦合的计算中,由于辐射场可能从不同方向入射,入射方位角和入射仰角会在一定范围内变化,可以将其看作不确定变量,因此传输线的响应也呈现出不确定性。针对输入参数服从非典型分布的情况,应用多项式混沌方法对传输线场线耦合频域响应进行不确定度量化。结合入射方位角和仰角的物理意义,给出其服从的分布类型并构建相应的正交多项式基底,并对该模型的传输线方程进行多项式混沌展开。最后结合含两个不确定参数的传输线场线耦合算例,给出远端电流响应的统计信息,对比蒙特卡罗方法,验证了该方法的正确性和高效性。
[Abstract]:Absrtact: in the calculation of transmission line field line coupling, the incident azimuth and incident elevation angle will change in a certain range because the radiation field may be incident from different directions, so it can be regarded as an uncertain variable. Therefore, the response of transmission line also presents uncertainty. In view of the atypical distribution of input parameters, the polynomial chaos method is used to quantify the coupling frequency domain response of transmission line. Combined with the physical meaning of the incident azimuth and elevation angle, the distribution types of the conformance are given, the corresponding orthogonal polynomial bases are constructed, and the transmission line equation of the model is expanded with polynomial chaos. Finally, the statistical information of remote current response is given by combining two uncertain parameters of transmission line field coupling. The correctness and efficiency of the method are verified by comparing the Monte Carlo method.
【作者单位】: 西安交通大学电力设备电气绝缘国家重点实验室瞬态电磁环境与应用国际联合研究中心;国家电网公司全球能源互联网研究院;
【基金】:国家国际科技合作专项资助项目(2013DFR70610) 国家电网公司合作项目
【分类号】:TN811
[Abstract]:Absrtact: in the calculation of transmission line field line coupling, the incident azimuth and incident elevation angle will change in a certain range because the radiation field may be incident from different directions, so it can be regarded as an uncertain variable. Therefore, the response of transmission line also presents uncertainty. In view of the atypical distribution of input parameters, the polynomial chaos method is used to quantify the coupling frequency domain response of transmission line. Combined with the physical meaning of the incident azimuth and elevation angle, the distribution types of the conformance are given, the corresponding orthogonal polynomial bases are constructed, and the transmission line equation of the model is expanded with polynomial chaos. Finally, the statistical information of remote current response is given by combining two uncertain parameters of transmission line field coupling. The correctness and efficiency of the method are verified by comparing the Monte Carlo method.
【作者单位】: 西安交通大学电力设备电气绝缘国家重点实验室瞬态电磁环境与应用国际联合研究中心;国家电网公司全球能源互联网研究院;
【基金】:国家国际科技合作专项资助项目(2013DFR70610) 国家电网公司合作项目
【分类号】:TN811
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