1) forward and backward substitutions
前代回代
2) forward and backward iteration
前代与回代
1.
When higher order Taylor series is expanded, it is necessary only to conduct fast forward and backward iteration based on triangle decomposing of .
高阶泰勒展开时只需在基态网络三角分解的基础上进行前代与回代即可求得节点电压对开断线路参数的各高阶导数,采用高阶泰勒展开法对电压相角与幅值的一次修正计算量相当于一次前代与回代。
3) Backward/forward
前推回代
1.
Considering the features of the storage way of the data of GIS, it improves the technology of node- ordering of traditional Backward/forward and builds the special node data structure.
该方法充分利用GIS系统数据存储方式的特点,改进了传统的前推回代中的节点编号方法和定义特殊的节点数据结构。
4) fast forward/fast backward
快速前代/回代
1.
The algorithm avoids irrelevant computation requirement in solving large sparse network equations by exploiting sparse vector method, partial matrix refactorization and fast forward/fast backward techniques.
该算法采用稀疏向量法、基于因子表路径树的矩阵部分重新因子化法、快速前代/回代法等稀疏向量技术,充分利用了矩阵的稀疏性,避免了求解电力网络方程中的不必要计算,使静态安全分析程序的计算效率得到显著的提高。
5) forward and backward substitution method
前推回代法
1.
Study on calculating theoretically line loss using forward and backward substitution method;
前推回代法计算理论线损研究
2.
On the basis of analyzing the current techniques for power flow calculations of distribution network,by improving the traditional forward and backward substitution method,a calculation applied for the reliable distribution network is presented,which has practicability.
在分析现有配电网潮流计算方法的基础上,通过对传统的前推回代法加以改进,提出了一种适用于辐射配电网潮流计算方法,具有实用性。
3.
This paper discusses the latent parallel characteristic of the forward and backward substitution method in tidal current computation.
本文针对前推回代法的潮流计算的潜在并行特点,对前推回代的在数据结构表达方式进行研究,比较了各种数据结构形式并行性计算速度的影响,并进行了仿真计算。
6) back/forward sweep method
前推回代法
1.
Calculation of multi-source distribution network loss based on back/forward sweep method and measurement resource
基于前推回代法和量测数据资源的多电源供电配电网线损计算
2.
The simplified condition of the back/forward sweep method and the realization of the improved algorithm using computer are given.
提出前推回代法的简化条件,给出了改进算法的计算机实现步骤。
3.
The characteristics and differences of back/forward sweep method and Newton method are compared and analyzed,and a modified back/forward sweep method is proposed based on the conventional back/forward sweep method, in which the correction equation of node voltage in the back sweep process is just simply replaced by a new equation.
对比分析了前推回代法和牛顿法在求解辐射状配电网潮流时的特点和区别,并提出了一种改进的前推回代算法。
补充资料：商代回纹丝织物残痕
商代回纹丝织物残痕 一九三七年（瑞典）西尔凡发现马尔米博物馆和远东博物馆珍藏的我国殷代青铜器觯和钺上，有很多与铜粘附在一起的丝织品残片，经分析和研究，确认这些残片中，存在着平纹地上显菱形花纹的丝织品，这是我国最早发现的绮，一个菱形花纹的纬纱循环为30根。上述丝织物也有些学者称其为绢。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条