电压跌落

因此，对于电网电压跌落较深的情况，本文仿真研究了常用的主动式Crowbar电路的工作原理和切换过程。

For the condition of deep grid voltage dips , this paper analyzed the principal and switching process of the usual used active crowbar circuits .

在第二、三章中，论文进一步分析了这两项技术在电压跌落条件下的理论和应用。

After that , theories and applications of these technologies in conditions of voltage dips are further analyzed , in Chapter 2 & 3 .

接着对SPWM型DVR补偿电压跌落的原理进行了详细的推导。

Expatiated on the principle of SPWM typed DVR compensating voltage sag amply then .

文中提出了一种新的检测电压跌落的方法大大提高了DVR的相应速度。

A new voltage-sag detecting method was applied to improve DVR response speed .

提出了一种考虑暂态电压跌落限制的直接法，快速求取保证故障后电力系统电压高于限值的故障临界清除时间（CCT）。

A direct method considering transient voltage dip is proposed to calculate the critical clearing time ( CCT ) ensuring that voltages of post fault power system are higher than limit .

对DVR控制电压跌落的策略进行了分析，结果表明在使用最小能量补偿法时，这种方法能可靠补偿线路深度、长时间的电压跌落。

The control strategy of DVR for voltage sag is analyzed , and the minimal energy compensation method is found to be reliable and effective for deep and long-duration voltage sages .

电压跌落是目前电力系统中最严重的电能质量问题，采用动态电压恢复器（DVR）向电力系统注入电压可以补偿电压跌落。

Voltage sag is one of the most important power quality problems challenging the power system , and voltage sags can be compensated for by dynamic voltage restorer injecting voltage into power system .

通过仿真系统故障时电压跌落，了解380V／100kVA动态电压调节器样机能够满足设计要求。

The prototype of 380V / 100kVA DVR can satisfy the design specification by simulating voltage dip when system was fault .

针对35kV、10kV系统，提出了从电压跌落的角度来评价中性点接地方式的观点。

The opinion that neutral grounding modes should also be evaluated from the point of transient PQ for medium voltage distribution system is proposed in the dissertation .

实验结果表明，当电源发生对称或不对称瞬时电压跌落时，负载电压能够在一个工频周期（20ms）内被补偿至额定值。

The results show that the load voltage recovers in less than one cycle ( 20ms ) whenever a three-phase or single-phase voltage sag occurs .

上海轨道交通1号线DC01型直流传动车辆在运行中因蓄电池应急供电后电压跌落，造成辅助逆变器起动失效，从而导致车辆丧失运营能力。

Because of the falling down of the battery voltage after an emergent power supply in the revenue service , the auxiliary inverter usually failed to start .

船舶电动机起动与电网电压跌落问题的探讨

The Probing about Electric Network Voltage Drop while Ship Motor Starting

电压跌落问题已成为影响配电系统电能质量的一个重要因素。

Voltage sags is one of the important power quality problems .

一种新型风力发电用电压跌落发生器的研制

Development of a Novel Voltage Sag Generator for Wind Power System

分析了交流调速系统中具有承受电网电压跌落的各种策略。

It analyzed the voltages sag ride-through strategies for ASD system .

分布式发电对电压跌落及失电损失分摊的影响

Influence of distributed generation on voltage sag and load-loss cost allocation

单相电压跌落补偿系统的新型时间优化控制

A Novel Time Optimal Control for Single Phase Voltage Sag Compensators

研究电压跌落与换相失败之间的量化关系。

Study on the relationship between voltage drop and commutation failure .

复杂配电系统电压跌落状态估计可观性分析

The voltage sags state estimation observability analysis in complicated distribution systems

一种基于派克变换的电压跌落检测改进离散算法

An improved discrete method for detecting voltage sag based on Park transformation

检测和监测；监测心电图；基于统计学的提高故障电压跌落在线监测判别准确率的方法

A Statistical-based Method for Fast Online Detection Classification Veracity of Fault-induced Voltage Sags

电能质量问题中的电压跌落

Voltage Sags in the Problems of Power Energy Quality

新型串联型电压跌落补偿装置的直流母线电压控制

DC Link Voltage Control of a New Type of Series Voltage Sag Compensator

而且电压跌落具有不可预见性，影响范围较大，会造成相当大的经济损失。

Voltage sags are unpredictable , this will result in considerable economic losses .

考虑暂态电压跌落限制的直接法暂态稳定分析

Transient Stability Analysis of Power Systems by Direct Method Considering Transient Voltage Dip

然而在电网电压跌落情况下，会有负序分量的产生。

However , there will be a negative sequence component when grid voltage drops .

电压跌落的危害分析及控制措施

Hazardous analysis and control measure of voltage drops

电压跌落是供电系统的一种较为突出的电能质量问题，正日益被关注。

Influence of solid-state current limiter upon the voltage sag in electric power system ;

相关理论与算例分析表明，继电保护技术可以提供一定的电压跌落治理能力；

Theoretical analysis and simulations prove that sag mitigation with relay protection is valid .

配电系统电压跌落幅值估算分析

Voltage sags profile estimation for power distribution systems