three-phase system

Analysis of Non-zero Neutral Voltage of Linear Three-phase System Load in Y Connection

三相三线制电路中点电位不为零现象分析

In this paper, instantaneous reactive power theory using in three-phase four-wire system was discussed at first.

讨论了在三相四线制系统中瞬时无功功率理论和有源电力滤波器的研究结果.

The designed harmonics-monitor may be applied to single-phase circuit, balanced or unbalanced three-phase system. It provides an effective and utility method for continuous and real-time harmonics monitor.

集成化电力谐波智能监测系统可用于单相电路、三相平衡系统以及三相不平衡系统，为实时、连续的谐波监测提供了一种实用而有效的方法。

Moreover, three-phase four-wire active filters can suppress line current, and solve symmetric problem of system effectively.

另外, 三相四线制有源电力滤波器能有效地抑制零线电流, 并能有效地解决系统的不对称问题.

Based on features of negative sequence components in the three-phase system, an islanding detection method based on the active negative sequence component disturbance ( ANSCD) is proposed.

根据三相系统含有负序分量的特点，采用有源负序扰动法进行三相并网逆变器的孤岛检测。

An intelligent PID controller was proposed for a CaC 2 furnace system with three-phase current coupled.

针对 三相 电极电流耦合的电石炉系统,设计出一种智能PID控制器.

The results also indicate that when special filters are connected to secondary three-phase system, the primary harmonic currents decrease by about 28% than by using conventional two-phase filters.

结果还表明，当在二次侧三相系统接入文中提出的特殊滤波器时，谐波电流比用常规两相滤波器降低约28%。

Unbalances appear in a three-phase system when voltages or currents differ from on phase.

三相系统中,某的电压或电流与其它相不相同时,就出现幅值与或相位的不平衡.

We also discuss the equivalent circuit of this transformer as well as the theory of the transformation between the three-phase system and the two-phase system.

与此同时，还阐明了该种变压器的等值电路，讨论了三相与两相系统变换的有关理论问题。

The paper simulates a three-phase system, analyzes influence of induction motor dynamics on voltage stability, and gives methods to improve voltage stability of induction motor nodes.

对一个三相系统模型进行仿真，分析了感应电机动态负荷特性对系统电压稳定性的影响，并给出改善电机节点电压性能的措施。

Two-dimensional heterogeneous mass transfer model and its solution for gas-liquid-liquid three-phase system

气液液三相体系的二维非均相传质模型与求解

This method has a good dynamic response characteristic and solves for the first time the determining problem for the compensation system in single phase system, which is also appliable to the three-phase system.

这种新方法具有良好的动态响应性能，解决了单相无功及谐波电流的瞬时补偿系统的检测问题，这种检测方法也能适用于三相系统。

To verify the simulation approach, simulation results and experimental results of a shunt active filter for harmonic current compensation in a three-phase system are presented.

要核实模仿方法，在一个三相系统提出模仿结果和分流器活跃过滤器的实验性结果泛音当前报偿的。

Mineral flotation froth is a gas-liquid-solid three-phase system, and the type of froth featuring high gas holdup, poor fluidity and too high stability usually causes processing problems.

矿物浮选泡沫是一种气液固三相泡沫体系，对于那些气含率高、流动性差、稳定性高的泡沫而言，普遍存在后续处理难的问题。

Meanwhile, due to the existence of the switched-capacitor circuit, different capacitance of the dc-link will be presented in a three-phase system.

同时，由于开关电容电路的存在，当变换器处于三相工作时，在直流母线侧会出现不同的电容容值，本文推导了直流母线等效电容容值与调制比之间的函数关系式。

In this thesis, the equation of uniform transmission line is derived, which is based on the distributed parameter transmission line module. Also the decoupling of three-phase system is achieved.

论文基于分布参数模型，推导了均匀传输线方程，并实现了三相线路的解耦。

The UMT 1 can measure an electrical three-phase system with current and voltage measuring inputs.

该城市轨道交通1号文件,可衡量一电器三个阶段的系统与电流和电压测量的投入.

Finally the applications of the proposed adaptive harmonic detection method in three-phase system and some other situations are investigated, which generalizes the application range of the proposed algorithm.

最后讨论了该算法在三相系统及各次谐波或无功均需检测情况下的应用，拓宽了算法的应用范围。

Then the algorithm is extended to the four-switch three-phase system. A new SVPWM algorithm is proposed based on four-switch three-phase shunt APF current modulation.

然后将其扩展到三相四开关系统，提出了针对三相四开关APF的SVPWM电流调制算法。

Correlations for the prediction of diffuse coefficients of continuous and dispersed phases in air-water-anthraquinone working solution three-phase system have been proposed.

提出了适用于气-液-液三相体系中，分散相和连续相轴向扩散系数的关联式。

Impedance-matching balance transformer is an new type transformer to achieve balance transformation of current between the three-phase system and the two-phase system.

阻抗匹配平衡变压器是在伍德桥牵引变压器的基础上发展的一种新型变压器。

Through the analysis of three-phase system of the classical IEEE 24 nodes, the method presented in this paper has been proven to be fast and reliable.

通过经典IEEE24节点的三相系统的算例分析，验证了本文所提出的算法具有快速、可靠收敛的优点。

Design of a New Harmonic Detector for Three-phase System

一种新型三相系统谐波检测装置的设计

Multiphase system has many similarities with three-phase system in principle, but also many new features. So there are still some problems in theory and practices which are worth research and need to be improved.

多相系统与三相系统在原理方面既有相似之处，又引入了很多新的内容，在控制理论和实践应用方面，仍存在较多值得研究和有待完善之处。

The control principle, design idea and engineering fulfilment of TCT static var compensator in unbalanced three-phase system are introduced.

介绍了三相不平衡系统静止型动态无功补偿装置的控制原理、设计思想及工程实现。

An advanced instantaneous detection method for fundamental positive-sequence active current under unsymmetrical and distorted three-phase system voltage

三相电压畸变且不对称时电流基波正序有功分量的改进瞬时检测方法研究

Reactive power compensation of unbalanced three-phase system

三相不平衡系统的无功补偿控制

Meanwhile the precision result from the model for two-phase system is higher than that for three-phase system.

模型能够较好地描述两相和三相系统的动力学行为，其中，两相系统的模型精度要比三相系统的模型精度稍高。

The applicability of the proposed method in three-phase system is analyzed.

文章还分析了该算法对三相系统的适用性。

The single-phase and three-phase system models are built up, and the decoupled power flow is put forward.

建立了单相系统模型和三相系统模型，给出了潮流的解耦算法。