查询词典 a-c generator

With operating the excitation control system with PLC, this design maintains the terminal voltage of the generator and the whole system, distributes the wattless loads equitably over the generators, makes sure that the generator works normally and the electricity power system functions savely.

本设计通过用可编程控制器控制发电机的励磁系统，来稳定发电机的机端电压，并稳定地分配机组的无功功率，来满足发电机正常发电及电力系统安全运行的需要。

The paper study about the interrelated technology of Direct Digital Synthesizer and Arbitrary Waveform Generator.According to that, a three-pass Arbitrary Waveform Generator base on DDS and embedded-computer PC104 is designed.

本文主要研究了直接数字频率合成技术及任意波形发生器的相关技术，设计了基于DDS和PC104嵌入式计算机技术的三通道程控任意波形发生器。

Finally, in order to implement the rotor winding inter turn short circuit fault detection of generator, we set up artificial neural network for the testing of generator rotor inter turn short circuit based on the Artificial Neural Network workbox of MATLAB.

最后应用MATLAB中的神经网络工具箱建立了转子绕组匝间短路探测的人工神经网络模型，以实现对发电机转子绕组匝间短路的探测。

With determining and comparing the result of the output of chlorine dioxide, the purity of chlorine dioxide, the rate of chlorine dioxide, the capacity of active chlorine and the output of chlorine generated by positive pressure type chlorine dioxide generator under different pressure, this paper draws the conclusion that the effect of pressure to aerogenesis efficiency of chlorine dioxide generator is indistinctive when the pressure is in the range of 0～0.6M Pa.

从化学平衡角度分析，压力增加会抑制正向反应的进行。为了验证实际效果是否如此，本文通过在不同压力下对正压式反应器 ClO2产量、纯度、得率及总有效氯产量等指标进行测定与比较得出，在 0～0.6M Pa的常用压力下，压力的变化对二氧化氯发生器的产气效率无显著影响。

An object generator may be more useful than a plainconstructor when the exact type to be generated is difficult or impossibleto express and the result of the generator can be passed directly to afunction rather than stored in a variable.

当要产生的确切类型很难或者是完全不可能表达而generator的结构可以直接传递给一个函数而不是存储于一个变量中的时候，一个object generator可能比一个普通的构造函数更有用。

Two major linear random number generators, the linear congruential generator and the multiple recursive generator, have been widely studied and used for many decades. Nowadays, as the price decreasing of computer processors, parallelization of the generators is being concerned for, at least, the computational efficiency purpose.

线性同余法（linear congruential generator，LCG）与k阶乘余法（multiple recursive generator，MRG）至今仍为乱数产生器常使用的两大线性方法；而近日，由於电脑处理器成本下降，平行化计算因而被广泛研究与使用，以改善因分析与模拟资料量与日俱增，电脑运算效率降低之问题。

In order to prove this maximum power tracker, the coreless disc permanent-magnet of generator for wind generator is implemented in this thesis.

为了验证本追踪方法，本论文制作用於风力发电之盘式无铁心永磁发电机，此类型发电机无铁心结构，因此具有高效率及高功率质量比。

3 When evaporative cooling hydro-generator (generator/motor) is running under dissymmetric electric power, if current of any phase is not over rated current IN, and ratio between its negative sequence current weight I2 and rated current (pre-unit value) is not over 60%, it shall be working chronically.

5.2.6.3蒸发冷却水轮发电机在不对称电力系统运行时，如任一相电流不超过额定电流 IN，且其负序电流分量与额定电流之比不超过6％时，应能长期运行。

In this paper, a long divinable time evaluation and a short time prediction of some vibration signals of a turbine generator set is processed by the largest Lyapunov exponent mode. And the results show that the method is certainly accurate and reliable to predict future state of a turbine generator set. As a matter of fact, the method can be used to prediction to future running state of any other complex mechanical equipment.

运用最大Lyapunov指数预测模式对发电机组振动信号进行了最长可预测时间估计和短期预测研究，结果证明基于最大Lyapunov指数的预测模式在进行发电机组时序信号预测中具有良好的预测精度和可信度。

In this paper, the research object is the XM18 spherical generator, in order to improve the dynamic behavior of the machine tool, the following aspects have been studied in this thesis: Firstly, based on the elasticity theory and finite element analysis theory, the finite element models of the lathe bed, dovetail, dovetail shelf, headstock, fanlike plank and millhead shelf, which were the main parts of the spherical generator, were built up using ANSYS9.0. And based on the modal analysis theory and FEM technology, the free modal and the constrained modal analysis of the main parts were studied. Accordance to the analytical results, put forword methods to optimize the key parts.

本课题以XM18球面铣磨机为研究对象，为了提高其动态特性，本文主要从以下几个方面进行研究：首先，根据弹性力学理论和有限元分析的基本理论，利用ANSYS9.0软件建立了铣磨机的主要零部件床身、燕尾、燕尾座、主轴箱、扇形板和磨头座的有限元模型，利用有限元法对主要零部件进行了自由模态和约束模态分析，并根据分析结果对关键部件提出了改进方案。

Now she was hungry and angry.She began to smoulder.

现在她又饿又气，她开始流露难以抑制的怒火。

You have placed our iniquities before You, Our secret sins in the light of Your presence.

诗90：8 你将我们的罪孽摆在你面前、将我们的隐恶摆在你面光之中。