发电机

This design detailedly to introduce does not there is not to scrub that the synchronical dynamo design transpories acting as the process.now the revolving silica ballast that I adopt is more prevalent does not there is not the scrubing excitation system.through main dimensions of the dynamo design to fix the electromagnetic theory , reachs again the wear and tear to the electrical machinery 、Electric current 、Tension 、Temperature rise 、Effectiveness college stone .

本设计详细地介绍了无刷同步发电机的设计运作过程，我采用的是现在较流行的旋转硅整流器无刷励磁系统。

The generator terminal voltage rising caused by the local over-voltage,over-current and single-ge-nerator compelling excitation during system syntony is theoretically analyzed.

从理论上分析了谐振导致局部过电压、过电流及发电机单机强励后造成机端电压升高的问题。

Most excitation system of generators now in use in our power system can be simulated with the exsisted mathmatical models.

我国电力系统中大多数现役的大型发电机励磁系统，都可用已知的励磁系统数学模型模拟。

The excitation system parameters of large synchronuous generators have great effects on modern power system stability studies.

摘要大型同步发电机励磁系统参数对现代电力系统稳定研究有重要的作用。

The application of multi-interrupt brings much convenience to design program and makes the processing time of program meet the requirement of the fast excitation control system of generators responding to signal.

多个中断的嵌套调用，为程序的设计带来了极大方便，使各种服务程序的执行时间满足快速发电机励磁控制系统对信号响应时间的要求。

Aiming at safe and reliable operation of power generating sets,design concepts of exciting system s of generators,as well as four main ways of their control,are respectively being analyzed and discussed.

为使发电机组安全可靠运行，探讨了发电机励磁系统的设计理念。

Therefore,it is necessary for us to conduct a series of principle analysis on different sections of the station such as the fuel system,lube system and cooling system of the diesel engine for generators,and the shaft generator as well as the main switchboard etc. It is also important to carry out at meantime a number of reliability tests and analyze the test results so as to assure all the units of the station will run smoothly.

因此，我们通过对船舶电站中柴油机的供油系统、润滑系统、冷却系统、轴带发电机、主配电板等各个环节从原理上进行分析，并进行必要的可靠性试验，对试验数据进行分析，确保船舶电站各个环节的运行良好。

We also developed a PD on - line detecting system for stator windings of generators, which c onsists of a set of non - contact type directional sensors, digital system, and software.

此方向传感器系统可以有效地识别外部干扰脉冲和局部放电脉冲。研制出一种基于这种传感器的发电机定子局部放电监测系统。

To enhance the reliability of the power system, feeders of generators should be connected to the ATSE gears in the electrical switchgear rooms.

为提高可靠性，应急发电机供电应引至市电低压双电源切换柜。

Although the measures such as the simulation method with detailed generator model in which the dynamic behavior of exciting system is taken into account and installing power system stabilizers in main generators of Northeast Power Grid were adopted, it was still unable to effectively verify the reasonableness of parameter setting of PSS as well as its integrated matching result, and there was not enough scientific foundation for the selection of power grid model, especially load models. Moreover, it was hard to make accurate quantitative analysis, even though the qualitative analysis, on the close extent of selected models to actual operation of power grid.

虽然采取了计及励磁系统动态行为的详细发电机模型的仿真方法、在东北电网重要发电机组上加装电力系统稳定器(power system stabilizer，PSS)等措施，但PSS参数整定的合理性及整体匹配效果无法得到有效验证，选择电力系统模型尤其是负荷模型还缺乏足够科学依据，对所选模型与电网运行实际的贴近程度也很难做出准确的定量甚至定性的分析。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。