It is found that if a LC fundamental series-connected resonance branch is connected in the second side of a current converter, the series current converter will present low reactance to fundamental and the high impedance to the harmonics. 在变流器的二次侧接上一个LC基波串联谐振电路,便可使变流器对基波呈现低电抗,而对谐波呈现高阻抗。
Conclusions: Our results showed that the hepatic arterial branch supplying HCC has lower impedance than the branch not related to HCC. 结论:供应肝癌的肝动脉分支较非供应肝癌的肝动脉分支阻力降低。
Based on the studies of characteristics of orthogonal projection for test voltage vector in branch space which consists of branch transfer impedance, the method of locating fault branch by only one test is advanced in this paper. 在研究了测试点电压增量向量在由支路转移阻抗矩阵组成的空间的正交投影的特性后,提出了仅一次测试的结果就可定位故障支路的方法。
In this paper, the relation of vibration and radiation characteristics of Class ⅳ flextensional transducers and their structures is studied with the equivalent circuit branch impedance analysis method. A series of conclusions, which will be helpful to transducer design, is reached. 本文利用等效电路支路阻抗分析方法,研究了Ⅳ型弯张换能器振动辐射特性与换能器结构之间的关系,得出一系列对换能器设计有用的结论。
Using the model, the six sequence currents for fault ports can be got on the same time, and then the node-injected currents could be wrote. Therefore the node voltages and branch currents can be calculated using the node impedance matrix. 利用该模型可同时求出六序故障端口电流,进而求出各节点注入电流,利用节点阻抗矩阵即可求出网络内各节点电压及各支路电流。
This article describes the signal integrity issue in branch net. Then presents the way of solve signal reflection problem through controlling impedance, and proves it by circuit model simulation. 针对分支线结构电气网络所遇到的信号完整性问题进行了深入分析,指出了通过阻抗控制来解决信号反射问题的方法,并且用电路模型仿真验证了方法的有效性。
A method to simulate network operations by adding the corresponding Branch-Impedance Matrix to the original network is described in this paper. 文中介绍了采用向网络操作前的原网络追加相应的支路阻抗阵来模拟网络操作的方法。
An equivalent circuit branch impedance analysis method for flextensional transducers 弯张换能器的等效电路支路阻抗分析方法
Constant impedance is modeled of the load, combines the impedance of generator and the impedance of branch, the bus impedance matrix is formed. 负荷采用恒阻抗模型,结合电源的阻抗及支路的阻抗,形成网络的节点阻抗矩阵。
The medium-voltage network systems with a large number of branch lines which are also unable to build resistance filter, so the interface impedance in line usually can not be matched, which will seriously affect the quality of communications. 在中压配电网上构建的载波通信系统,由于中压配电网存在着大量的分支线且无法架设阻波器,使得在信号接入点上的阻抗通常都无法匹配,因此严重影响了通信质量。
This method treats the analysis of resonance branch and impedance matching as sign analysis cell. 该方法主要以谐振枝节、阻抗匹配为基本模块对功率均衡器进行分析。
Then, we derive the fast setting calculation algorithm based on the branch additional method as the fast compensation and optimization algorithm of the impedance matrix, and then apply the generated protection setting value to the power system protection. 然后导出基于支路追加法的快速整定计算算法作为阻抗矩阵快速补偿优化算法,并将生成的保护定值用于电力系统继电保护中。