【作者】 王勇；

【导师】 梁贵书； 董华英；

【作者基本信息】 华北电力大学（河北） ， 电工理论与新技术， 2006， 硕士

【摘要】 对于非均匀线的灵敏度分析,目前采用的方法还很少。微分求积法对于分析非均匀传输线,在保持同样计算精度的条件下可明显提高效率,而且不受各种约束条件的限制,可应用于具有任意尺寸、任意耦合情况、任意分布参数的多导体传输线。基于微分求积法,本文提出并解决了含均匀和非均匀传输线网络的频域灵敏度分析问题,并与其他方法进行验证比较;其次,与精细积分法相结合,给出了含均匀和非均匀传输线网络的时域灵敏度分析方法;另外,还给出了利用数值拉氏反变换由频域灵敏度得到时域灵敏度的方法,并与其他方法进行验证比较;最后,将本文方法分别应用到高速电路领域和电力系统领域,求解了PCB互连线物理参数的灵敏度和杆塔相关参数的灵敏度。更多还原

【Abstract】 At present, there are still few good methods in nonuniform transmission lines (NTLs) sensitivity analysis. The differential quadrature method (DQM) adapts to model uniform transmission lines (UTLs) and NTLs. Due to global sampling of points in the DQM approximation, it requires far fewer grid points in order to build accurate discrete models than other numerical methods do. The DQM-based modeling leads to high accuracy, as well as high efficiency. First of all, this paper analyzes the sensitivity of NTLs on frequency-domain using the DQM; secondly, in order to obtain the sensitivity directly on time domain, this paper calculates the sensitivity using DQM and the precise integration method, while the method obtaining the sensitivity using the numerical inversion of Laplace transmission is also presented; at last, this paper applied the this paper’s method to two examples about the microwave and high speed circuits and the electric power system, which analyzed the sensitivities about the parameters of PCB’s interconnects and the tower model.更多还原