New technique for mitigating harmonic current in three-phase four-wire electric distribution systems

Single-phase distribution has the characteristic of small capacity, dense distribution points and short radius that lead to the more branches in single and three-phase hybrid distribution system. Its network structure becomes more complexity, and the fault location becomes more difficult.

单相配电小容量、密布点、短半径的特点使单三相混合配电系统的分支增多，结构更加复杂，故障定位相较于三相系统更加困难。

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Then build a model of single and three-phase hybrid distribution system based on MATLAB, and research the case of line selection and the method of fixing fault segment with DC signal and fault position with AC signal by simulation.

基于MATLAB搭建了单三相混合配电系统模型，对接地选线情况和直流定段、交流定点方法做仿真研究。

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This model which can be applied to three-phase unbalanced distribution system has the capacity of capturing unbalanced current in the system.

该模型具有捕获系统中的不平衡电流的能力，可以适用于配电网三相不平衡的情况。

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Material-Saving Design for Amorphous Core in Three-Phase Oil-Immersed Distribution Transformer

三相油浸式非晶合金配电变压器铁心节材设计

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Research on All-capacitor Adjusted Compensation for Low Voltage Three-phase Unbalance Distribution Network

低压配电网三相不平衡全电容调节补偿的研究

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A three-phase radial distribution system state estimation algorithm

三相辐射配网状态估计方法

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A fast solution of three-phase asymmetric distribution system load

一种不对称配电网三相潮流快速算法

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Power Flow Model and Algorithm for Three-Phase Four-Wire Distribution Network

三相四线制配电网络的潮流模型与算法

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Based on the steady-state model of induction generator and the power characteristics of wind turbines, a method for three-phase distribution power flow calculation is developed, considering wind turbine with directly grid-connected induction generators, which are currently the most widely used in wind turbines applications.

基于感应发电机的静态特性以及风力机的功率特性，针对应用比较广泛的直接并网感应发电机型风力发电系统，发展了配电系统三相潮流计算方法，用于分析风场对配电系统安全性的影响。

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Secondly, measuring arrangement in three-phase distribution systems, decomposing Jacobian matrix algorithms and how to choose pseudo-measurement weight are discussed.

其次，对三相系统的量测设置，分解雅可比三相状态估计算法和伪量测权值的选取进行了阐述。

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The core mass of single-phase and three-phase distribution transformers with wound core is analyzed and calculated. The examples are given.

对单相、三相卷铁心配电变压器的铁心质量进行了分析和计算，并给出了实例。

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Three-phase distribution network power flow and network reconfiguration and dynamic reconfiguration problem are studied in this dissertation.

本论文研究配电网络潮流计算、大规模配电网络重构以及配电网络的动态重构等问题。

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A New Compensator for Unbalanced Three-Phase Distribution Systems

一种用于配电系统三相不对称的新型补偿器

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Based on the result that transformer can transform travelling waves effectively, this paper researches the transform characteristic of travelling waves in three-phase distribution transformers.

在已经证明配电变压器能有效传变行波信号的基础上，本文对三相配电变压器的行波传变特征进行了研究。

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Single-Phase Run of Three-Phase Distribution Transformer and Its Boundary Conditions

三相配电变压器单相运行分析及约束条件

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Our data show that the three-phase diagram of phospholipids/ TBA/ water can be divided into three main regions corresponding to a clear solution of lipid in aqueous TBA, suspensions of stacked hydrated lipid bilayers in excess aqueous TBA, and liposomes.

本论文的研究表明，磷脂、叔丁醇和水混合物可以形成三个不同的相区，即脂质体区、沉淀的双层区和单相溶液区。

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First modular design the three-phase phase lock loop, which realizes functions of the phase discriminator, loop filter and NCO. With the top connections finished, the whole three-phase PLL design has completed.

首先对三相锁相环进行模块化设计，然后分别实现了鉴相器、环路滤波器和数控振荡器的功能，最后经过顶层连接，完成了整个三相锁相环的设计。

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On basis of the analysis to the double feeding back velocity regulation principle, bi-variant AC-AC transducer serves as three-phase power supply to design a double feeding back velocity regulation system, and which is made experimental analysis.

在分析双馈调速原理的基础上，引入双变量交-交变频器作为转子三相电源，设计一双馈调速系统，并进行了实验分析。

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The Application of Three-phase Modulation to the Design of On-ship Gyrocompass Power Supply System

三相脉宽调制技术在船用罗经电源设计中的应用

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The Variable Metric Method for Constrained Optimization has been believed to be one of the most effective methods for the nonlinearly constrained optimization problem since 1980's. A successful application of this method to three-phase induction motor design is presented in this paper.

报告了求解非线性规划的最有效算法之一&约束变尺度法在三相感应电机的优化设计中的成功应用。

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