三相四线

结合现有产品，介绍了针对三相四线制经CT接入式有功电能表的防窃电技术，并对此项技术的推广应用作了探讨。

Connecting the product in existence , the article introduces the technology of preventing stealing power energy in three-phase four-wire power measuring system and discusses the application of the technology .

本文针对这一情况，对三相四线制并联型APF进行了参数设计和仿真。

Aiming at these problems , this paper makes detail study on the parameters design and simulation of a three-phase four-wire shunt APF .

非正弦输入电压下三相四线PWM整流器控制策略研究

Study on Control Strategy for Three-phase Four-wire PWM Rectifier under Non-sinusoidal Input Voltage

本文介绍了Park变换在三相四线制并联有源电力滤波器中的应用。

This paper proposes the application of Park transformation in Shunt Active Power Filters of three-phase four-wire systems .

介绍了一种基于DSP的三相四线制系统混合型电力滤波装置。

A new DSP based hybrid power filter designed under the condition of three-phase four-wire system is presented .

提出了一种三相四线系统动态电压调节器（dynamicvoltageregulator，DVR）的单周控制模型。

A new one-cycle control scheme of dynamic voltage regulator ( DVR ) for three-phase four-wire system is proposed .

无差拍控制三相四线制四桥臂APF仿真分析

Simulation and Analysis of Three-phase Four-wire Four-leg APF with Deadbeat Control

三相四线并联APF的电流滞环控制策略分析

Analysis of Hysteresis Current Control Strategy of Three-phase Four-wire Shunt APF

一种新型双开关三相四线PFC电路的研究

Research on Novel Dual Switch 3-phase 4-line PFC Circuit

该装置应用于普遍使用的三相四线制系统，采用新型高速DSP控制芯片，可实时地检测计算负载谐波并加以补偿。

Using high performance DSP processor , the device can calculate and compensate harmonic current rapidly under the condition of three-phase four-wire system .

并在Lyapunov稳定性理论的基础上，提出了一种新的三相四线三电平中点箝位PWM整流器非线性控制方法。

Then a new nonlinear control law based on LYAPUNOV 's stability theory for the PWM rectifier is presented .

开关点预置三相四线SPWM逆变器研究

Studies of switching-nodes preset 3-phase 4-line SPWM inverter

基于无源化方法的三相四线制APF控制器策略

Passivity-based Controller for Three-phase Four-wire APF

在本文提出的三相四线并联型APF的系统结构中，采用滞环比较电流控制方法。

This paper advance one three-phase four-wire shunt APF system which adopts the hysteretic control of compensating current method .

dSPACE控制的三相四线有源电力滤波器

Three-phase Four-wire Active Power Filters with dSPACE controller

3DSVPWM技术合理利用两个零矢量对输出的影响，解决了三相四线制系统中的中线电流问题，实现了对不平衡电流的补偿。

The 3D-SVPWM technique solves the problem of the neutral line current by this influence and realizes the compensation for the imbalance , harmonic and neutral currents .

FBD法在三相四线制系统电流实时检测中应用

Application of FBD-method to real-time current detection in three-phase four-wire system

该文的理论推导和所得结论为改善三相四线并联APF应用电流滞环控制时的性能提供了较好的理论基础。

This paper offers a better theory basis for improving compensation capability of the three-phase four-wire APF controlled by hysteresis current control strategy .

对有源电力滤波采用空间矢量调制的电流控制方案进行了分析，采用DSP+FPGA的方案实现了三维空间矢量调制的三相四线APF。

The three dimension space vector modulation for current control strategy is deduced and implemented by DSP + FPGA in a three-phase four-leg APF .

100kVA三相四线系统用增强型SVG的研制

Development of 100 kVA enhanced SVG based on three-phase four-wire power system

该文提出了一种三相四线并联APF主电路统一的拓扑结构，建立了它的数学模型和性能指标体系。

This paper propose a unified main circuit topology of three-phase four-wire shunt APF , as well as its mathematic model and performance index system .

本文讨论TN（接零）系统中，三相四线和三相五线在其末端单相配电系统中，N线在什么条件下会发生危险电压？

This paper is just to discuss distribution circuit of TN-system in the single-phase , including both three-phase four-wire system and three-phase five-wire system . In what situation does dangerous voltage happen with N-wire ?

p-q-r法在三相四线制谐波抑制中的应用

The usage of p-q-r theory in three-phase four-line system for harmonic restraint

在MATLAB/simulink下搭建并联型三相四线制APF仿真模型，通过仿真验证了所提出的谐波检测算法的正确性。

A parallel three-phase four-wire APF simulation model is built in MATLAB / simulink , and the correctness of above proposed harmonic detection algorithms is verified through the simulation .

基于改进p-q-r法的三相四线制系统谐波电流检测方法的研究

Research on Harmonic Current Detection in Three-Phase Four-Wire System Based on Improved p-q-r Method

该文首先建立了基于开关函数的三相四线三电平中点箝位（NPC）电压型整流器的数学模型，分析了它的工作原理。

In this paper , the mathematical model of three-phase four-wire three-level neutral-point-clamped ( NPC ) voltage source rectifier ( VSR ) using switching functions is founded firstly , and its operating principle is analyzed .

其次，基于瞬时无功功率理论的思想，对传统的ip-iq检测方法进行改进以满足三相四线制APF的使用条件。

Secondly , based on the theory of instantaneous reactive power , the traditional ip-iq testing method is improved to satisfy the using conditions for three-phase four-wire APF .

分别对变压器不同的连接方法进行了Matlab系统仿真，并对变压器星形连接的三相四线结构和改进的SVPWM控制方法作了实验，解决了系统中存在电压零序分量问题。

The Y connection and delta connection of transformer in DVR is simulated with Matlab and the three-phase four-wire structure with Y connection is used in the experiment , which can compensate zero voltage component of source voltage by approved SVPWM algorithm .

设备应放置在无剧烈振动的地面或工作台上，接入三相四线380V的电网。

The equipment should be placed on the ground without violent vibration or on the working stage and connected in the power grid of380V with three phase and four wire .

为了快速、有效地检测出三相四线制电力系统中的谐波、负序和零序电流，提出了一种基于FBD法的电流实时检测方法。

A real-time current detection based on FBD ( Fryze-Buchholz-Dpenbrock ) method is pre-sented to detect the harmonic , negative-sequent and zero-sequent currents in three-phase four-wire system , and the essential of the method is the projection transformation of reference voltage .