电压

A study of fault diagnosis in aircraft power system based on rough sets;2. An automatic method to measure power system harmonic;3. By using digital simulation method,this paper analyzes overvoltage of mine power system .

以煤矿井下供电系统为对象，利用数字仿真技术，通过对供电系统模型的仿真研究，探讨了各种参数对操作过电压的影响，为过电压的预防及供电安全提供了依据。

The stress was the study of the new methods of calculation the harmonic voltage and the harmonic current, and a new concept of filter ratio to evaluate the actual effect of single harmonic filter was raised considering the background harmonics. As well, the calculation mode of the single harmonic filter was also given based on the concept of filter ratio; it can offer effect data to evaluate the actual filter ratio of the single harmonic filter. At the same time, a method of designing the single harmonic filter was given, too, considering the background harmonics of the power system. In this paper, both the computer analysis and the proven had been done. And the result was shown to be that the voltage aberration and the harmonic current were decreased, and that the actual filter ratio of single harmonic filter was raised. The reason that we must consider the background harmonics when designing a single harmonic filter was also expatiated in this paper.

重点研究了考虑电网背景谐波下谐波电压、电流的计算方法，提出了用滤波率来评价单调谐滤波器安装容量利用率的概念，基于滤波率，分别给出了不考虑、考虑电网背景谐波时，单调谐滤波器的计算模型，为定量分析和评价单调谐滤波器的实际补偿效果提供了依据：并以此提出了考虑电网背景谐波的单调谐滤波器计算机辅助优化设计方法，并经计算机仿真分析、论证，减少了负载母线谐波电压畸变率和注入系统的谐波电流，有效地提高了单调谐滤波器的滤波效果，阐述了单调谐滤波器的设计过程中要考虑电网背景谐波的理论和实际意义。

Switching operations of disconnectors or circuit breakers in Gas Insulated Substation may generate very fast transient overvoltages, which are heinously detrimental to transformer and other power equipment.

摘 要：气体绝缘变电站中隔离开关等操作会产生特快速暂态过电压，这种过电压会对变压器等电力设备造成极大的危害。

Then the breakdown mechanism was introduced to explain the results.It is found that the optimum polarity combination is heteropolarity and the best scope of the ratio between trigger voltage and self-breakdown voltage is 30%~50%.

实验结果表明：新型触发管开关获得最佳触发特性所需的极性组合应为异极性组合，触发电压幅值范围为自击穿电压的30%~50%，为兼顾触发电流和保护触发器，触发电阻值应为50~100 Ω，验证了触发管开关击穿机制的已有认识。

All voltage values, except differential I/O bus voltages, are with respect to network ground terminal.

所有电压值，除非差分I / O总线电压，是相对于地面网络终端。

According to the different compensatory objects, this paper took a project which based on symmetry components to compensate. When SVC is used as the system compensatory, it is mainly used to adjust the system voltage. Therefore, the balanced control strategy is adopted. When SVC is used as the load compensatory, it is mainly used to restrain the voltage fluctuation and flash during the running of the impactive loads,so the unbalanced control strategy is adopted. According to this project, the hardware and software for the control system of SVC are designed.

本文首先分析了无功补偿的基本原理，针对SVC补偿对象的不同，采用一种基于对称分量法的SVC分相补偿方案：作为系统补偿时，SVC主要用来调节系统电压，因此采用平衡控制策略；而作为负荷补偿时，SVC主要用来抑止冲击性负荷运行时引起的电压剧烈波动和闪变，因此采用不平衡控制策略，依据此方案，对SVC控制系统的软、硬件进行设计，对控制系统的数据处理方法及控制策略也进行了详细的分析。

The simulation experiments of various kinds of electrode system under different pressure show that the gas inceptive when the gap is fixed, discharge voltage is proportional to the pressure; because the degree of uniformity of electrical field is different among the electrode systems, the changing trend of the inceptive discharge voltage with the pressure is unlikeness.

对各种电极在不同压力下进行模拟实验，实验表明：通常情况下，给定间隙，气体的起始放电电压随着压力的增大而增大；不同的电极系统，由于电场的均匀程度不同，起始放电电压随压力变化的趋势也不同。

Effect of various parameters on the induced voltage was examined by numerical simulation.

对自然雷电的9次回击过程在水平导体上产生的感应电压特征进行了分析，并利用数值模拟分析了各种参量对感应电压的影响。

The induced voltage is proportional both to the magnitude of A and , so there are two ways to minimize the induced voltage

感应电压正比于A和的大小以及A和的变化率，所以有两种办法可以使感应电压变得最小

Therefore, it is very important to build the analytical models for transmembrane voltage induced on cells in biological and medical fields.

因此，建立外电场作用下细胞膜电压计算模型，掌握细胞膜电压变化规律，对更好研究细胞电磁生物效应及其在生物、医学领域的应用具有重要指导意义。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。