The total harmonic distortion (THD) can be reduced by the instantaneous voltage feedback control.
采用电压瞬时值反馈降低了输出电压波形的总谐波量。
The instantaneous voltage PID control inverter has advantage on circuit and cost, compared with voltage current dual-loop control inverter.
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。
Adopting sinusoidal instantaneous voltage and current, a new algorithm for measuring sinusoidal electrical parameters has been put forward.
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。
Some numerical results have been obtained for the instantaneous sheath thickness, the instantaneous voltage and the ion flux density on the substrate, etc.
采用数值方法模拟出鞘层的瞬时厚度及极板的瞬时电位变化、鞘层内离子密度和电场强度等物理量的时空变化。
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.
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。
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.
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。
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.
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。
The hysteresis wide is widened for decreasing switching frequency and energy losses, which causes the pulsation of instantaneous active power and direct current voltage.
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；
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.
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。
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.
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。
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.
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。
When welding current is fixed, some important information such as length and section area of welding cable, connection of ground wire can be shown by output voltage of instantaneous arc-striking.
在焊接电流确定的条件下，引弧瞬间的焊机输出电压反映了焊接电缆长度、截面积以及地线连接情况等重要信息。
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.
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。
Load voltage and short circuit current can be used to determine the batterys instantaneous ohm internal resistance and to judge whether the course of assembling batteries was normal.
根据负荷电压和短路电流可知电池瞬间欧姆电阻，从而判断电池装配过程是否正常；三参数与电池容量均无明确关系。
The tester designed can be used to measure the parameters, such as power factor, effective value of voltage and current, instantaneous value, etc.
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 experimental results indicate that the instantaneous energy can synthetically reflect the influence of current and voltage on dynamic arc characteristics.
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。
Instantaneous supply voltage drop short-time interruption and voltage change of power supply network;
供电电网电源电压瞬降、短时中断和电压变化；
There are two ways to emerge instantaneous over voltage in the side of low voltage which are thunderstruck and instantaneous process of electronic network.
低压侧瞬态过电压的形成有雷击和电子网暂态过程两种途径。
In essence, the aim of PFC is to make the input terminal of electrical equipment appear resistive to the AC line, and insure that the input current be proportional to the instantaneous line voltage.
从本质上来讲，功率因数校正的目的是使用电设备的输入端口对交流电网呈“纯阻性”，保证输入电流和电网电压随时成正比。
Subsequently, a novel controller for DC bus voltage regulation is put forward according to the small signal model based on the instantaneous power balance in AC and DC sides of three-phase SAPF.
然后根据交流侧和直流侧的功率平衡方程，推导了电压环的小信号模型。最后基于该模型设计了一种高动态性能的直流电压调节器。
The response equation on cold wire is discussed, then the relationship of Voltage output of coldwire system to the instantaneous fluid temperature is given by calibrating experiments.
然后，通过冷线的实验校准，定量确定冷线测温系统的动态响应关系。
The response equation on cold wire is discussed, then the relationship of Voltage output of coldwire system to the instantaneous fluid temperature is given by calibrating experiments.
然后，通过冷线的实验校准，定量确定冷线测温系统的动态响应关系。
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