分析了瞬时电压补偿装置(DVR)产生零序电压及其放大机理。
This paper analyzes the mechanism of zero sequence voltage generating and its magnification by DVR.
控制系统采用瞬时电压单闭环控制策略，以提高高频链逆变电源的动静态特性。
The single close-loop control method of HFL inverter based on voltage feedback was designed for better performance.
实验表明，氩气放电相邻脉冲之间的瞬时电压间隔是稳定的，而氦气的却是起伏变化的。
Under the same discharge conditions, the numbers of current pulses per half cycle for helium discharge are more than that for argon discharge.
逆变器瞬时电压PID控制与电压电流双环控制相比，在电路结构、成本等方面更具优越性。
The instantaneous voltage PID control inverter has advantage on circuit and cost, compared with voltage current dual-loop control inverter.
本文提出了一种逆变器数字多环控制技术，该方案在电流环和瞬时电压环之外附加了一个重复控制环。
This paper presents a digital multiple-loop control technology of inverters. The scheme incorporates a current loop with an instantaneous voltage loop, while a repetitive control outer loop is added.
噪声与波纹电压为50mV p-p，输出负载瞬时恢复时间0.5ms。
Noise and ripple is 50 mV p-p and output load transient recovery is 0.5 milliseconds.
系统利用重复控制抑制非线性负载下的电压畸变，利用瞬时值反馈控制加快负载突变时的动态响应过程。
Repetitive control is used to reduce voltage distortion under nonlinear loads and instantaneous feedback control is designed to quicken the dynamic response process under abrupt load variation.
针对电能质量扰动信号的特性，本文采用小波变换对电力系统的高频、瞬时脉冲、电压切痕扰动信号进行检测。
According to features of power quality disturbance signal, this paper detects the disturbance signals of high-frequency, transient impulse and voltage notch with wavelet transforming.
提出了一种利用正弦交流电压和电流的瞬时值测量正弦交流电参量的新算法。
Adopting sinusoidal instantaneous voltage and current, a new algorithm for measuring sinusoidal electrical parameters has been put forward.
试验结果表明，瞬时能量可以综合地反映电流电压对电弧动态性能的影响。
The experimental results indicate that the instantaneous energy can synthetically reflect the influence of current and voltage on dynamic arc characteristics.
为降低开关频率和减少开关损失，需增加功率滞环比较器环宽，否则引起瞬时有功功率和直流电压波动，影响系统的性能；
The hysteresis wide is widened for decreasing switching frequency and energy losses, which causes the pulsation of instantaneous active power and direct current voltage.
同时，还给出了计算正弦电压幅值的瞬时计算实用公式。
This paper also lists a formula that can calculate the amplitude of sine voltage instantaneously.
该方案采用电感电流和输出电压瞬时值双环控制，以提高输出稳定性和动态响应。
To improve the steady state operation and dynamic response, a dual-loop control strategy which incorporates the inductor current and the instantaneous output voltage has been used.
应用瞬时值对称分量变换，可提取电压、电流故障分量的正序空间向量。
The transformation of the instantaneous value symmetry component applied, the positive sequence space vector of fault component of the voltage and current can be derived.
一个结点已经迅速地调整到新的环境温度，而另一个结点则变化较慢，这样就产生了瞬时的电压偏置变化。
While one junction will adjust to the new ambient temperature quickly, another changes slowly, resulting in a temporary change in voltage offset.
此整定原则以正常偏大方式整定电流、电压定值，其目的是在保证保护可靠性的前提下，增大瞬时速断保护的保护范围。
The new principle calculates current and voltage setting values, which are greater than normal values, to increase protection scope under the condition of assured protection reliability.
瞬变和浪涌是正弦交流波电路上电压与电流的一种瞬时态的畸变。浪涌、谐波为主要的表现形式。
Transient and surge are the instant aberrance of the voltage and electric current on the simple alternating current wave circuit. surge and harmonic wave are the main manifestation.
所设计的电网参数测试仪可以测量功率因数、电压和电流的有效值、瞬时值等参数。
The tester designed can be used to measure the parameters, such as power factor, effective value of voltage and current, instantaneous value, etc.
以通用瞬时无功功率理论为基础，阐述了电压不对称和非正弦条件时的有功和无功电流的物理意义。
The interpretation of active and reactive currents in non-sinusoidal and unbalanced three-phase four-wire systems is given based on the generalized instantaneous reactive power theory.
而对于模型中与采集量历史记录无关、反映电压电流瞬时变化关系的元件则用实际元件模拟。
Those components of which values are independent on history record of sampled quantities and reflect the relationship of instantaneous voltage and current are realized by themselves.
采用电压瞬时值反馈降低了输出电压波形的总谐波量。
The total harmonic distortion (THD) can be reduced by the instantaneous voltage feedback control.
本文设计了一个变电站瞬时过电压在线监测系统。
In this paper, an on-line monitoring device for fast transient overvoltages on substations is designed.
同时，还给出了计算正弦电压幅值的瞬时计算实用公式。
This paper also lists a formula that can calculate the amplitude of sine voltage instant...
功率变换器主电路采用电压电流双闭环瞬时值反馈控制方式，电容电压和电流瞬时值控制环提高了系统的稳定性、硬特性、稳态特性及动态特性。
The voltage and current real-time feedback control method is adopted, which improves the stability, the stiffness, the static characteristics, and the dynamic characteristics of the system.
为寻求性能优良、容易实现的配电静止同步补偿器(DSTATCOM)的电压控制策略，根据DSTATCOM系统中的瞬时功率平衡理论，推导出了DSTATCOM用于控制电压时的直接电压控制策略。
Based on the balance of the instantaneous power of the distribution static synchronous compensator (DSTATCOM) system the direct output voltage control strategy for voltage control is proposed.
基于瞬时无功功率理论提出了一种任意整数次谐波电压的实时检测方法。
In order to implement real time detection of harmonic voltage, a method for any harmonic voltage detection based on instantaneous reactive power theory was presented.
该文对零输出换相策略、电压增益及开关动作顺序进行了详细的分析，并与双电压合成控制策略下共模电压的最大瞬时值进行了对比。
The paper analyzes in detail the synthetical method, the voltage gain and the switch action sequence of matrix converter based on the zero-output commutation strategy.
针对试验过程中可能产生的瞬时过电压和故障过电压分别建立了数学和仿真模型，分析了过电压的产生机理、危害及特点。
The mathematics and simulation model for transient and fault overvoltage are established and their generation mechanisms, harm and characteristic are analyzed.
针对试验过程中可能产生的瞬时过电压和故障过电压分别建立了数学和仿真模型，分析了过电压的产生机理、危害及特点。
The mathematics and simulation model for transient and fault overvoltage are established and their generation mechanisms, harm and characteristic are analyzed.
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