全面对比分析了全电流比例差动判据和故障分量电流比例差动判据的灵敏性和安全性。
The sensitivity and the security of the percentage differential criteria using phase current and superimposed phase current are studied comparatively.
2>PID控制:通过调控反映输出电流比例,相关参数有比例段,积分时间微分时间;
PID control: through the adjustment of the proportion of the output current, the relevant parameters are proportional, integral time and differential time;
它是继零磁通电流互感器、双级电流互感器和电流比较仪之后的又一种新型的电流比例标准。
It is a new current ratio standard after the zero flux current transformer, two stage current transformer and current comparator.
分析了HT-7托卡马克壁处理前后欧姆放电时的自举电流占总等离子体电流比例的变化情况。
The ratio of the bootstrap current to the total plasma current is analyzed before and after wall conditionings of the ohmically heated discharges in the HT-7 tokamak.
理论分析和实验结果表明:双喷嘴挡板电液伺服阀具有良好的流量-电流比例特性和小负载流量的控制能力。
Both the simulation and experimental results indicate that the dual flapper-nozzle servo valve has good flow-current characteristics and strong ability to control small flow rate.
介绍了电流比是小数的电流互感器的检定,以及电流比例标准的灵活应用及检测时给被检电流互感器带来的附加误差。
This paper introduces the calibration of current transformers with special current ratio of decimal fraction the application of the current comparator is also introduced.
他说:“在这里发生了另一种现象,我们管它叫电子输送,因为电流的一部分看似根据波的速度按比例决定的。”
"There's something else happening here," he says. "We call it electron entrainment, since part of the current appears to scale with wave velocity."
我们将其称为电子夹带(electron entrainment),因为部分电流表现出与波速成比例的态势。
We call it electron entrainment, since part of the current appears to scale with wave velocity.
作为简单描述,提供给比例阀电磁铁的电流需要被调节,不象应用常规阀的时仅有开关通或断那样简单。
As described earlier, the electrical current to the solenoid of a proportional valve needs to be regulated and not just simply switched on or off as is the case with a conventional valve.
放大器输入为电压信号,与光敏二极管产生的光电流信号成比例。调制光柱以断路器同样的频率照射光敏二极管。
The amplifier input is a voltage proportional to the photocurrent signal produced by a photodiode, which is irradiated by a modulated light beam at the same chopper frequency.
计算结果表明,发射区载流子寿命的变化几乎不影响注入到基区的电子电流,但却成反比例地影响基区空穴电流。
The calculated results show that the electron current injected into the base region is not affected, but an increase of the base hole current is increased with the lifetime reduction.
结果表明,微弧氧化陶瓷层向内与向外的生长比例受强化时间和电流密度综合控制。
Results show that the proportion of inward to outward growth varies with intensifying time and current density.
由PW M脉宽调制器驱动功率驱动电路,输出电流信号驱动比例电磁铁。
This output transferred thorough PWM driver circuit and changed into current signal to the proportional magnetic valve.
测速发电机,提供频率与转速成比例的电流的小发电机。
TACHOMETER generator, a small electric generator for supplying current at a frequency proportional to the speed of rotation.
一般地,通过比例阀电磁铁地电流由一些形式地电子放大器控制。
Normally, the current flowing through the proportional solenoid will be controlled by some form of electronic amplifier.
为什么变频器的电压与电流成比例的改变?。
Why the Voltage and Current of Frequency Converter Vary in Proportion?
补偿电流跟踪控制选用三角波比较控制法,并采用带电压前馈控制的比例调节闭环控制。
Compensatory current control adopts triangle wave compare control, and DC voltage control adopts PI closed loop control.
试验研究了激励频率、比例阀输入电压及磁流变减振器输入电流对座椅振动特性的影响规律。
The effects of actuating frequency, proportional valve input voltage and MR damper input current on the vibration characteristics of seat were experimentally studied.
在大型构件液压同步提升技术中,采用了计算机输出的脉宽调制信号作为电液比例流量阀的输入电流信号控制液压提升器的速度。
In hydraulic synchronizing lifting technology for oversize structure, computer output PWM signal as the input current of proportional valve is used to control the velocity of hydraulic cylinder.
当两端之间有温差时,金属丝内即产生与温差成比例的电流。
When both junctions are at different temperatures, an electric current is produced proportional to the temperature difference.
文章研究了采用不同的正激、反激变压器匝比对传输功率的分配比例、电流纹波等影响,并进行了试验验证。
The influence on the power transfer and the current ripple with different turns ratio was researched. The experimental results verified the analysis.
实时检测变压器原方绕组的谐波电流,通过逆变器产生与原方绕组谐波电流成比例的谐波补偿电流注入变压器副方多补偿绕组中。
The harmonic compensation currents proportional to the harmonic current in the primary winding, which is detected real-timely, are injected to the multiple secondary winding of the transformer.
其降阶指把电流环时间常数调整到尽量小,低频信号段可等效为普通比例环节。
The intension of reduce rank is that the time constant of current-ring is regulated to the best of minimum, and low frequency signal is equated to common proportional component.
如果人们能把所有尺寸缩小,比如说,减小到原来的1/10,那么电流路径的平均长度也将减小到1/10,操作速度因而就会按比例提高10倍。
If one can scale down all dimensions to, let us say, one tenth, the average lengths of the current-paths will be reduced to one tenth. And the speed of operation will be scaled up 10 times.
从聚合物光电池中光电流和暗电流的产生机制出发,对该现象进行了解释,认为外加磁场可以有效改变单重态极化子对和三重态极化子对之间的相对比例,进而使自由载流子浓度增加。
The results show that the magnetic field can effectively change the relative ratio between the singlet and the triplet polaron pairs, resulting in an increase in the density of the free carriers.
以AOA电流模式多路输出积分器和AOA电流模多路输出比例电路为基础,设计了多功能二阶电流模式滤波器。
Based on a current-mode integrator and proportion circuit multiple outputs by AOA, multifunctional second-order current-mode filter was proposed.
通过直流电压外环的功率平衡控制及比例积分校正,配合内环并网电流反馈控制,使并网逆变器在保持并网电流质量的同时更好地控制直流电压。
A DC voltage outer loop control for power balance and PI correction and an ac current inner loop control for feedback are designed to ensure the current quality and stabilize the DC voltage.
控制方向,提供输入电流成比例的两个螺线管并控制通过改变输入电流的流动。
Controls direction by supplying an input current into one of the two proportional solenoids and controls flow by changing the input current.
在论文并网控制部分中,作者通过使用一种新型比例谐振控制器(PR)实现了对单相逆变器并网电流的无误差控制。
Then a new controller named proportional resonant (pr) controller was introduced in the current control. It could track the current reference without steady error.
在论文并网控制部分中,作者通过使用一种新型比例谐振控制器(PR)实现了对单相逆变器并网电流的无误差控制。
Then a new controller named proportional resonant (pr) controller was introduced in the current control. It could track the current reference without steady error.
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