无电压时，油扩散，盖住边长200微米的像素。
When no voltage is applied, the oil spreads out to cover the pixel, which is 200 microns on a side.
在直接转矩控制理论基础上，推导出一种基于定子磁链矢量增量来确定定子参考电压矢量的新型无速度传感器直接转矩控制方案。
This paper obtains a new speed-sensorless direct torque control scheme for induction motor based on calculating the stator flux vector increment to determine the stator reference voltage.
而低电压或无电压代表死亡的疤痕组织。
从发电机转速、功率和直流母线电压之间的相互关系出发，提出利用直流母线电压进行转速观测实现无速度传感器。
According to the relationship of rotational speed, power and DC bus voltage, observing rotational speed by using DC bus voltage is proposed to realize none direct speed measurement.
无刷直流电动机在高性能驱动应用中具有良好的调整性能、高电压、高转矩、高体积比以及无电刷的优点。
Brushless direct current motors and have advantages of good adjustment performance, high voltage, high torque, high volumes ratio in high performance drive.
本文针对LC无源滤波器和传统的电压源型并联混合电力滤波器的缺点，提出了一种新型的并联混合电力滤波器。
A novel single - phase parallel hybrid power filter is presented in this paper, which can eliminate drawbacks of LC passive filter and the conventional voltage source parallel hybrid power filter.
发电机的谐波组开路或短路，无三次谐波电压输出，检查绕组接头或拆换绕组。
If no triple overtone voltage, check the winding lug or replace with another winding.
高电压无电极强脉冲气体放电，可以用作激光器的激发光源。
High voltage pulsed electrodeless discharge in rare gases can be used as a light source for laser excitation.
设计了一种高准确度无电阻的带隙基准电压源。
A high accuracy band-gap reference voltage without resistor is designed.
在列写与无伴电压源相关联的节点方程时，用一个封闭面把连接无伴电压源的节点包围起来，看做一个广义节点，其节点的方程与通常的节点法一样。
When we set up the nodal equations, which is associated with ideal voltage sources, we can use an enclosed surface to encircle these nodes and think of it as a general node.
无载分接范围选择应能提供正确的低压侧母线电压。
No load tap ranges should be selected to provide an adequate low-side bus voltage.
由于采用了一种新型的低损耗无源缓冲电路，开关管和主二极管的电流电压应力较小，并降低了能量损耗，提高了工作效率。
Since the novel low-loss passive snubber circuit is used, the low current and voltage stress, low energy loss and high efficiency properties are achieved.
为了提高异步电机无速度传感器矢量控制的低速性能，提出了一种定子电压幅值和直流偏置补偿办法。
This paper presents a new compensation method for stator voltage amplitude and DC offset, which can improve the performance of the speed sensor-less vector control of induction motor.
对电容式电压互感器二次无电压输出故障的检查方法、电气试验及判断作了说明。
The paper presents the inspection method of the non - voltage in secondary side output fault, the electrical test and the judgment of the capacitor voltage transformer.
在低速范围内，对无传感器感应电动机进行矢量控制时用定子电压和电流推算转子磁通是比较困难的。
The sensorless of induction motor field-oriented control employing stator voltages and currents has difficulty in estimating rotor flux in the low-speed range.
文中采用无源探针对由等离子弧梯度电压和等离子鞘层电压构成的等离子反翘(等离子云)电压进行检测。
A non power supply probe was developed to detect the plasma cloud voltage, which consists of plasma arc voltage gradient and plasma sheath voltage.
使调压过程在宏观上电压按系统运行的需要而改变，而微观上电压波形平滑、连续、无冲击。
The macrocosmic voltage is changed in terms of the demand of system operation, while the waveform of the microcosmic voltage is smooth, continuous and poses no impact.
高的电压等级且无最小导线及间距的限制。
Higher voltage ratings without the limitations of minimum wire size and spacing.
本文介绍了一种基于脉动高频电压信号注入法实现面装式永磁同步电机无传感器控制的方法。
A method to implement sensorless control of Surface Mounted PMSM based on fluctuating high frequency voltage signal injection was introduced.
电压前馈补偿可以抵消电网作用，使系统近似成为一个简单的无源跟随系统。
The feed-forward control of utility grid voltage counteracts the influence of utility grid. The system becomes a simple passive tracking system.
实验结果表明，利用该方法设计的无差拍控制正弦波逆变器系统稳定性好、输出电压波形畸变率低，具有一定的实际应用价值。
The experimental results prove that the sine wave inverter designed by this method have good stability and high quality output voltage and can be applied in practice.
分析表明，即使系统不存在零序回路，DVR都会在补偿控制中向系统注入微小的零序分量，该零序分量会对无零序回路系统侧电压造成不良影响。
It shows that DVR will inject small zero sequence component into the power system during compensation control even if there is no zero sequence circuit. This will influence the voltage on system side.
电视机电源要求非常低的纹波电压，过去电视机所采用的是大的无源rc缓冲电路，使电视机的电源效率比较低下。
The television power supply demands low ripple voltage, and the passive rc buffer circuit used in television before, decreased the power effect.
本文中的电压传感器采用电阻分压，可将初级电压直接转化为10v以内的微信号，以供测量保护用，装置具有体积小、传输频带宽、不存在饱和问题、无谐振点等优点。
By adopting resistance divider, the voltage sensor designed in this paper can transform primary voltage into micro-signal less than 10v, which can be used in measurement system directly.
根据测量和观测的定子电流、电压和磁链，提出了一种永磁同步电动机无传感器控制方案。
A sensorless control strategy for permanent magnet synchronous motors is presented based on the measurement and observation of stator current, voltage and flux vector.
之后通过励磁电流对定子电压的调节满足并网所需要的三个条件，完成无换向器电机的并网过程。
After the voltage regulation process used excitation control, it is fitted for three synchronization conditions and can accomplish the synchronization.
基于凸极跟踪的思想，详细讨论了高频电压信号注入法在永磁同步电动机无位置传感器运行控制中的应用。
Based on the thought of salient pole tracking, the paper studied the application of this method in sensorless control of PMSM in detail.
针对感应电机无速度传感器磁场定向控制系统，提出一种基于电压模型的改进转子磁链观测方法。
An improved rotor flux estimator based on voltage model was proposed for speed sensorless field-oriented vector controlled induction motor drives.
具有共振直流环节的电压型逆变器是在传统的PWM硬件开关电路上加一个共振环节，构成高频、无开关损耗电压型逆变器。
Adding a resonance link to the traditional PWM inflexible switching circuit, a voltage-source inverter of high frequency and no switching less was formed.
具有共振直流环节的电压型逆变器是在传统的PWM硬件开关电路上加一个共振环节，构成高频、无开关损耗电压型逆变器。
Adding a resonance link to the traditional PWM inflexible switching circuit, a voltage-source inverter of high frequency and no switching less was formed.
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