为了解决数值振荡问题，采用了局部网格细化、动态时间步长和集中热容矩阵等方法。
The methods of local mesh refined, dynamic time step and lumped heat capacity matrix were introduced to resolve the numerical oscillation problem.
提出了一种基于测试信号法的TCSC功率振荡阻尼(POD)控制器的设计方法，避免了计算量庞大的状态矩阵特征值计算。
A new test signal method based approach to design power oscillation damping (POD) controller for TCSC is proposed, by which the bulky eigenvalue calculation of state matrix can be avoided.
分析了如何利用测量数据构造矩阵束并进行电力系统振荡模态辨识的方法。
Method of power system oscillation mode identification utilizing matrix pencil constructed from sampled data is presented.
如果不进行集中热容矩阵，无论是细化网格还是减小时间步长，其解决数值振荡问题的效果都不好。
However, if the heat capacity matrix is not lumped, the numerical oscillation problem can not to be resolved even though by refining the local mesh or by decreasing the time step.
计算阻抗矩阵元素时，由于被积函数振荡性很强，收敛慢，难于计算。
The integrand exhibits slowly convergence and highly oscillatory, which leads to difficulties when attempting to evaluate the impedance matrix elements.
通过模拟结果与解析解的比较可以看出，在时间步长选择合适的情况下，集中热容矩阵能够很好地解决数值振荡问题；
The results show that the simulation results fit the theoretic results(by separate variable method)very well when the heat capacity matrix is lumped with appropriate time step.
根据电子储存环理论模型，采用迭代方法从实测响应矩阵计算束流横向振荡的振幅函数和相位。
A method for extracting the beta-function and phase of the beam position monitors and the corrector magnets from the measured response matrix based on storage ring theoretical model is presented.
本文首先利用琼斯矩阵算法对高功率氧碘激光器腔内的偏振特性进行了分析，并得出结论，谐振腔内的本征振荡一般为椭圆偏振。
The polarization characteristics in the high power COIL resonator is analyzed by Jones calculus, and draw a conclusion that, in general the eigen-polarization state is elliptical polarization.
本文首先利用琼斯矩阵算法对高功率氧碘激光器腔内的偏振特性进行了分析，并得出结论，谐振腔内的本征振荡一般为椭圆偏振。
The polarization characteristics in the high power COIL resonator is analyzed by Jones calculus, and draw a conclusion that, in general the eigen-polarization state is elliptical polarization.
应用推荐