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辐射状配电网
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  “辐射状配电网”译为未确定词的双语例句
     The method of this paper has many advantages such as: ①the impedance parameter of the Thevenin equivalent circuit can be directly obtained by branch impedance parameters, and short-circuit faults can be calculated without constituting the nodal complex admittance or impedance matrices of a radial distribution network;
     文中方法的主要特点是:(1)戴维南等值电路的阻抗参数可直接由支路阻抗参数求得,故障分析计算无需形成辐射状配电网节点复数导纳或阻抗参数矩阵;
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     The numerical example shows that the method of this paper is a very effective method to calculate short-circuit faults in a radial distribution network without neutral earthing or with neutral earthing via an arc suppression coil.
     算例表明:文中方法是分析计算中性点不接地或经消弧线圈接地的辐射状配电网故障的一种十分有效的方法。
短句来源
     An evolutionary algorithm in solving problems of optimal capacitor placement on radial distribution systems
     一种适合于解决辐射状配电网电容器最优配置问题的遗传算法
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     Tests show that it is a practical method for power flow calculation for radial distribution networks.
     算例表明,该方法是一种实用的辐射状配电网潮流计算方法。
短句来源
     As a foundation, the node voltage based power flow approach for distribution estimation is realized, which can not only used in radial networks, but also suitable for looped and grid ones.
     首先实现了一种适用于配电网状态估计的基于节点电压法的潮流计算方法,既可以进行辐射状配电网潮流计算,又可以进行环状和网格状配电网潮流计算。
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  相似匹配句对
     Power flow calculation for radial distribution networks
     辐射状配电网的潮流计算
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     Optimal Design for Radial Distribution Systems of Urban
     辐射状城市配电网优化规划研究
短句来源
     Distribution Geographic Information System
     配电网地理信息系统
短句来源
     Optimum Control of Electric Power Distribution Network
     配电网优化控制
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  radial distribution system
The problem of large system size in the optimal design of switchable capacitors installed on a radial distribution system is solved by a piecewise method.
      
Figure 14a shows a single-line diagram of a compensated radial distribution system in which the relay location defines the protected line.
      
In practically all of these cases, the distribution of power within the building is achieved through the use of a simple radial distribution system.
      
In these situations, the control and protection algorithms are more complicated than those used when connecting with a radial distribution system.
      
These remote faults occur either on a different branch of the radial distribution system or on a distant part of the feeding transmission system.
      


A transfer function algorithm is proposed for locating the single--phase--to--ground faults in Power distributionnetworks. The principle of applying the transfer function theory to the location of ground faults in power distributionnetworks is described. Formulas of transfer functions for locating ground faults in single--phase and three--phase distributionlines are given. Theoretical analyses and computer simulations show that the criteria based on the frequency, phase angle andamplitude characteristics of...

A transfer function algorithm is proposed for locating the single--phase--to--ground faults in Power distributionnetworks. The principle of applying the transfer function theory to the location of ground faults in power distributionnetworks is described. Formulas of transfer functions for locating ground faults in single--phase and three--phase distributionlines are given. Theoretical analyses and computer simulations show that the criteria based on the frequency, phase angle andamplitude characteristics of the transfer function waveform can effectively locate faults in distribution networks. Since it isvalid for power distribution networks with branched radial lines. it is unaffected by load changes and its parameters can easilybe measured. This fault location algorithm can be widely applied to the power distribution networks.This project is supported by National Natural Science Foundation of China ado. 59777017).

针对配电网的单相接地故障定位问题 ,提出了传递函数故障定位法。阐述了应用于配电网故障定位的传递函数法的原理 ,给出了单相和三相配电线路接地故障定位的传递函数公式。重点分析了依据传递函数波形的频率、相位和幅值特征进行故障定位的判据 ,从理论公式的数值计算和实际线路仿真两方面论证了判据的可靠性 ,从判据在实际的分支辐射状配电网中的应用论述了判据的有效性。证明了配电网传递函数故障定位法是切实可行的

Evaluation of distribution network reliability can be improved by calculating the power flow using network connectivity analysis. A new flow calculation method was presented for reliability evaluation of radial distribution systems. In the method, the Jacobian matrix is characterized by the UDU T form, where U is a upper triangle matrix determined by the topological structure of the system and D is a partition diagonal matrix. A DC flow model was used for distribution systems which use an equivalent reactance...

Evaluation of distribution network reliability can be improved by calculating the power flow using network connectivity analysis. A new flow calculation method was presented for reliability evaluation of radial distribution systems. In the method, the Jacobian matrix is characterized by the UDU T form, where U is a upper triangle matrix determined by the topological structure of the system and D is a partition diagonal matrix. A DC flow model was used for distribution systems which use an equivalent reactance to describe the network. A sample calculation shows validity and effectiveness of the method.

为了提高配电网可靠性评估结果的精确度 ,需要在网络连通性分析基础上进行潮流计算。论文阐述了一种应用于辐射状配电网可靠性评估的潮流计算方法 ,其雅可比矩阵具有 UDUT 的形式 ,其中 U是仅由系统拓扑结构确定的定上三角矩阵 ,D是一个块对角矩阵。针对配电网的特点 ,应用直流潮流模型 ,将配电网馈电线用等值电抗表示 ,用前代回代进行求解的方法 ,能够获得较快的计算速度。通过实际系统的算例 ,证明了这种算法的优点。

Load flow calculation of distribution network is an important issue of urban distribution network planning. To deal with radial network with multiple branches, breadth-first search is applied to stratify the radial distribution system, then back/forward sweep algorithm is employed to attain power flow of the distribution system. Tests show it is a practical method with reliable convergence property and high computing speed.

城市配电网的运行方式一般为辐射形网络 .结合城市配电网的结构特点 ,应用前推回代法进行潮流计算 ,处理多分支的辐射形网络时 ,采用广度优先搜索策略 ,对辐射状配电网分层 ,以确定前推回代的顺序 ,在此基础上利用前推回代潮流算法进行计算 .该方法可处理复杂的多分支辐射网 ,具有收敛可靠、速度较快且编程简单的优点 ,算例表明 ,该方法是一种实用的城网潮流算法

 
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