谐波电压

机端TV三次谐波电压及其对三次谐波保护的影响

Analysis of Third Harmonic Voltage Originated From Generator Terminal TV and Its Influence on Third Harmonic Protection

计算了龙泉&政平HVDC工程龙泉站系统试验期间零功率试验时的谐波电压。

The harmonic voltage at zero power test of Longquan HVDC converter station is calculated .

但是电网谐波电压将会影响ir、i3r监测的准确性，该文就这种影响进行了详细的仿真研究；

But the existence of harmonic voltages in the power system will have influence on the indictor 's accuracy .

阻性泄漏电流基波和3次分量是反映MOA劣化现象的两个故障特征量，仿真分析对此问题及间谐波电压对阻性泄漏电流的影响。

Resistive first-harmonic current and third-harmonic current are the two fault eigenvectors reflecting MOA 's aging phenomenon .

单馈线谐波源在PCC点产生的谐波电压可用其自身发射的谐波电流与对应阻抗的乘积表示。

The harmonic voltage generated by single harmonic feeder can be expressed with the product of its harmonic current and corresponding impedance .

同时，通过动态方程求出TCSC两端的谐波电压，并对TCSC谐波特性进行分析。

And the harmonic voltage across TCSC has been derived through dynamic equation , and the harmonic characteristic about TCSC has been studied .

比较两种不同的越区供电方式对西昌电网PCC节点谐波电压的影响；

Two kinds of beyond area supply modes are compared on influence of the harmonic voltage on point of common coupling ( PCC );

谐波电压对ATSE可靠工作影响的分析

Analysis of Harmonics Effects on ATSE Reliability

例如，电力公司向用电客户分配谐波电压（电流）允许值时，必须考虑评估点母线（POE）的背景谐波水平，以得到合理的允许值；

For example , when electric power companies distribute the harmonic voltages ( currents ) limit to customers , the background harmonic level of the POE should be taken into account .

接下来阐述了基于DSP的有源电力滤波器的系统设计，详细给出了该检测方案的硬件电路原理图，包括主电路设计、辅助电源电路设计以及谐波电压和电流采样电路设计。

This thesis is mainly contained the system design of active power based on the DSP , which is including hardware design and software design . The main circuit , the auxiliary power source design , the voltage and current sampling circuits are given in the hardware design .

25000t化学品船货油泵变频驱动的谐波电压问题

Harmonic wave voltage problem in frequency conversion driving of of cargo oil pump for 25000t chemical tanker

本文利用实测数据对牵引负荷110kV侧谐波电压的叠加规律进行了分析，得出了适用于电气化铁道谐波的叠加指数。

This paper explores the summation rules of harmonic voltages of traction load based on lots of measurement data and new summation exponents suitable for traction load are proposed .

针对以上问题，论文将四矢量SVPWM扩展到非正弦电压调制区，得到了和两矢量SVPWM同样的调制范围，同时降低了注入的谐波电压，进而减少了谐波电流。

Four-vector SVPWM is extended to the non-sinusoidal voltage range in this dissertation . It has the same modulation range as the two-vector SVPWM , but reduces the voltage harmonics in non-sinusoidal voltage range . So the current harmonics and stator loss can also be reduced .

分析了控制死区和开关死区时间造成的谐波电压的性质，建立了考虑死区时的闭环控制SPWM逆变器线性化模型，对不同电压调节器和死区时间以及不同负载时的SPWM逆变器外特性进行了研究。

Based on the analysis of the properties of harmonic voltages caused by dead-time , the linear model of close-loop controlled SPWM inverter with dead-time is established and the output characteristics of SPWM inverter under different voltage regulator , different dead-time and different load are also studied .

传统两矢量空间矢量脉宽调制（SVPWM）具有更高的母线电压利用率但是注入谐波电压过大，而四矢量SVPWM只用于输出正弦电压，限制了其调制范围。

Conventional two-vector space vector PWM ( SVPWM ) has a high DC bus utilization , but the output voltage has large harmonics . The four-vector SVPWM is just used to produce sinusoidal phase voltage , so the DC bus utilization cannot reach to the highest value .

绥中发电厂引进俄罗斯800MW发电机组，定子接地后备保护装置主要由基波零序电压保护和3次谐波电压保护组成。

The stator ground protection set of Suizhong Power Plant 800 MW generator units supplied by Russia is mainly composed of fundamental frequency zero-sequence voltage protection and third-harmonic voltage protection .

引入VQS技术，在Buck型交流变换器占空比中上叠加一个两倍频的交流分量，在其输出端得到具有相位移的基波电压，但同时产生了三次谐波电压。

Thus the paper introduces concept VQS which means to add an AC component with double frequency to the duty ratio of Buck type AC converter . However , in addition to the fundamental voltage with phase shift , it also produces the 3rd harmonic voltage .

远程谐波电压监测系统的设计与研究

The Research and Implementation of the Remote Voltage Harmonic Monitor System

背景谐波电压引起用户谐波电流超标的分析

Analysis of the Over-criterion Harmonic Current Caused by Background Harmonic Voltages

本文介绍了中频谐波电压滤除的基本原理。

The paper introduced the basic prinple of filtering harmonic voltage .

关于电容式电压互感器测量谐波电压的问题

Some Problem About the Harmonic Voltage Measurement by Capacitor Voltage Transformer

基于谐波电压检测的矿用混合型电力滤波器的研究

Research on Mine Used Hybrid Power Filter Based on Harmonic Voltage Detection

国产20万千瓦汽轮发电机三次谐波电压实测与分析

Measurement and analysis of third harmonic voltage on a 200 MW Turbogenerator

电网背景谐波电压测量与研究

Measurement and Study of Background Harmonic Voltages in Power Systems

磁阻式电动机的旋转电势与机电能量转换浅谈电网中各电压等级下的谐波电压问题

On Harmonic Voltage Generated by Different Voltage in Power Network

整流电路谐波电压的危害及治理

Harm of non-harmonious voltage in rectified circuit and its control

高压直流输电3脉动谐波电压源计算

Calculation of Three-pulse Harmonic Voltage Source for HVDC Transmission

基于MAX261的谐波电压检测器

Detector of Harmonic Voltage Based on MAX 261

该结构基于零序谐波电压互感器思路。

The main idea is based on the sensor of zero-phase sequence harmonics voltage .

该方法可以方便、准确地测量系统的谐波电压，从而克服了用电容式电压互感器测量谐波电压时所带来的较大误差。

With this method , the harmonic voltages can be easily and accurately measured .