| 1. | Computer simulation of a triode magnetron injection gun for 8mm third harmonic gyrotron
三次谐波回旋管双阳极电子枪计算机模拟 |
| 2. | Brings out some new and different viewpoint on issues of transient and dynamic voltages for generator single phase fault as well as third harmonic fault protection .
在暂态过电压和三次谐波保护等问题上，提出了一些不同观点。 |
| 3. | Investigating the relationship between the resistive component of the fundamental frequency current and that of the 3rd harmonic current by experimentation with real movs
通过试验研究了moa泄漏电流中基波阻性电流和三次谐波阻性电流之间的关系。 |
| 4. | In this paper , we analyze three kinds of typical harmonics in power system . the main method of monitoring of high harmonics is depicted
本论文首先系统的论述了国内外电力网谐波的产生及其危害，以电力系统中主要出现的三次谐波为例，论述了对谐波进行监测的必要性。 |
| 5. | The method for third harmonic generation of large - aperture high - power solid laser is described which is the second nonlinear effect of two cascade crystals in this paper
摘要叙述了大口径高功率固体激光器，利用两块级联晶体的二阶非线性效应，对激光输出进行谐波转换，实现三次谐波输出的方法。 |
| 6. | 3 . based on the simulation , a 8mm third harmonic complex cavity gyrotron with gradual transition , to which a permanent magnet system could be used , is designed and tested
三、在数值模拟研究的基础上，设计了用于永磁包装的8mm波段三次谐波渐变结构复合腔回旋管互作用腔体及有关工作参量，并进行了测试。 |
| 7. | Point originally possessed the harmful interference of the frequency s every kind of times . enlarge 1 khz sine wave the hour will produce 2 khz of two times wave with 3 khz of three times wave wave for and much higher time
指原有频率的各种倍频的有害干扰。放大1khz正弦波时将会产生2khz的二次谐波和3khz的三次谐波以及许多更高次的谐波。 |
| 8. | The detail study on the interaction between the electron beam and standing wave of complex cavity gyrotron with gradual transition and gyroklystron has been done in this dissertation , supported by the pre - study important items " the study on 8mm third harmonic gyrotron with a permanent magnet system " and " the study on 8mm high power gyroklystron " . the main works of this dissertation are listed as following : 1 . the study on the rf distribution of the complex cavity with gradual transition is presented , in which the multi - modes coupling are taken into account
本论文就是结合该课题组的“九?五”重点项目“ 8mm三次谐波永磁包装回旋管技术的研究”及“十?五”重点项目“ 8mm高功率回旋速调管技术的研究” ，对以谐振腔为互作用高频系统的回旋脉塞器件中两种典型的器件? ?回旋振荡管及回旋速调管中电子注与驻波场的互作用进行了深入细致的探讨和研究，其中回旋振荡管采用的是渐变复合腔。 |
| 9. | Have studied generator ground model mostly used in detail for middle and big domestic generator units . calculates and deduces fault current as grounding of single phase and third harmonic fault protection schemes . first time contributes overall knowledge about generator neutral grounding of distribution transformer with secondary resistor , in which considered inductance of the transformer to people
针对大中型发电机的两种主要接地方式进行了分析，进行了接地故障电流、三次谐波保护的计算推导，首次在接地变高阻接地方式有关公式推导中计入接地变感抗，从而使人们对接地变高阻接地认识更为全面。 |
| 10. | To resolve the situation that the sensitivity of present ground fault protection schemes is low for the large - sized hydro - generators , a kind of protection scheme based on the fault component of third - harmonic voltage and two kinds of protection scheme based on the fault component of zero - sequence voltage at the terminals and neutral are developed , and they can obtain higher sensitivity and reliability and provide 100 % protection for the stator windings . the influence of noise on the stator ground fault protection based on the local modulus maximum of wavelet transform is analyzed
针对目前大型水轮发电机定子绕组单相接地保护灵敏度偏低的问题，通过分析单相接地故障后机端和中性点零序电压的变化特点，提出了一种基于机端和中性点三次谐波电压故障分量和两种基于机端和中性点零序电压故障分量的高灵敏度、高可靠性保护方案，并实现定子绕组的100 %保护。 |
