voltage fluctuation

Software compensation for mains voltage fluctuation of welding machine based on DSP

基于DSP数字控制焊接电源的网压波动软件补偿法

The electric auxiliary system sometimes has condenser motor loads, and the starting of inductor motors can cause bus voltage fluctuation problem.

厂用电系统中一般带有集中电动机负荷，异步电动机启动会引起母线电压严重的波动。

However, the coming substantive power electronic equipments, impactive and nonlinear loads in power system lead to a series of power quality problems, such as voltage sag, voltage swell, voltage fluctuation, harmonics, voltage notch, impulse, oscillation transient and so on.

但随之而来的各种电力电子设备、冲击性与非线性负荷的大量投入，导致供电质量出现电压暂降、电压暂升、电压波动、谐波、电压缺口、脉冲与振荡暂态干扰等一系列电能质量问题。

The effect of voltage fluctuation on control accuracy of the PLC-based open-loop electric heating system is investigated. The compensation method and program of time parameter correction are stated and the functions of the program are proven.

研究了电压波动对PLC开环电加热系统控制精度的影响，提出时间参数校正的补偿方法和程序，并通机验证了程序的功能。

Voltage fluctuation may influence the voltage quality and the life of the electric installation, what is worse, the voltage fluctuation will likely result system fault and large area power failure.

电压波动轻则影响电压质量及电气设备寿命，重则导致系统事故、甚至引起大面积停电。

Simulation of Static Var Compensator to Restrain the Voltage Fluctuation of Electric Auxiliary System

静止无功补偿器用于抑制厂用电系统电压波动仿真

This paper also analyzes the relationship between control parameters and the neutral point voltage fluctuation on the ideal situation for hysterics control scheme.

针对常用的中点电压滞环控制方法，分析了理想情况下控制参数与中点电压波动之间的关系。

Chaotic Simple Particle Swarm Optimization Algorithm for Voltage Fluctuation Measurement simplified automatic data plotter

电压波动估计的混沌简化粒子群算法简易自动数据绘图机

The reactive power variation of wind farm interconnected with power grid leads to voltage fluctuation grid.

并网风电场无功功率的波动会引起系统电压波动.

On the Standard of Voltage Fluctuation and Flicker in Power System

电力系统电压波动和闪变标准介绍

The voltage fluctuation and flicker is one of the key factors to influence power quality.

电压波动与闪变是影响电能质量的重要因素之一。

Research on Parallel Compensation Control Method of Voltage Fluctuation and Flicker Mitigation

抑制电压波动和闪变的并补控制策略研究

The parameter setting module, the signal collecting module and the power network voltage fluctuation inspection module are connected with the priority calculation module;

用于采集电网电压的波动值，当电网电压波动值大于电压调整阈值时，判定为电压波动的电网电压波动检测模块；

Lastly, the mathematical model of the PV inverter is established under asymmetric grid fault. Power flow of PV inverter, and the mechanism of voltage fluctuation in DC bus is analyzed.

最后，建立了电网不对称故障下光伏逆变器的数学模型；分析了光伏并网逆变器的功率流、直流侧电压波动机理，网侧负序分量对光伏逆变器输出并网电流的影响。

The main contents of power energy include frequency deviation, voltage deviation, voltage fluctuation and flicker, voltage unbalance, temporary or transient over-voltage, wave distortion, voltage dips and interruption, power supply reliability and so on.

电能质量的内容包括频率偏差、电压偏差、电压波动与闪变、三相不平衡、暂时或瞬时过电压、波形畸变、电压暂降与短时中断以及供电连续性等。

The analysis and treatment of trouble of high-voltage circuit system are carried out through instance, and the effect of mains voltage fluctuation on equipment is also inquired initially.

对高压电路系统故障的实例进行了故障原因分析和处理，并对电源电压波动对仪器的影响进行了初步的探讨。

The detection algorithm of voltage fluctuation and flicker is also discussed in this paper.

文章分析了电压波动和闪变的检测算法。

The paper anticipates that this software can provide reliable and valid data and information of transient voltage fluctuation in order to farther analyze transient problems of power quality and take measure to improve power quality.

本文期望通过该软件得到的暂态电压扰动现象的信息，能够为后期进一步分析暂态电能质量问题以及采取合理措施提高电能质量提供有效的依据。

Study and realization of voltage fluctuation and flicker real-time measuring

电压波动和闪变实时检测的研究与实现

Factors influencing power quality vary from the electric pulse in millisecond to long term voltage fluctuation.

电能质量干扰的变化范围很广,从毫秒级的冲击干扰到长期的电压幅值波动.

Research on Measuring Method of the Voltage Fluctuation and Flicker

电压波动与闪变的检测方法研究

Influence of the abnormal DC voltage fluctuation on transformer tap changer control

高压直流线路电压异常波动对分接开关控制的影响

The neutral-point voltage fluctuation of three-level converter is only related to applied modulation method and three-phase current.

三电平变流器的中点电压波动只与变流器采用的调制技术和三相电流有关。

Power for the thermal cycler shall be provided with a manostat or a UPS to avoid the influence on PCR amplification arose by fluctuation of voltage.

热循环仪的电源应专用，并配备一个稳压电源或UPS，以防止由于电压的波动对扩增测定的影响。

The torch can bring higher arc voltage with lower fluctuation by elongating the arc.

该喷枪能够提高电弧电压并减小电弧电压波动.