查询词典 generator

The DC generator produces multiphase alternating currents in its armature windings, and a commutator on the armature shaft converts these alternating currents into a direct current output; or a homopolar generator produces a direct current without the need for a commutator.

直流发电机出示其骨架绕组多相交流电流和电枢轴上的一个换向器将这些交流电流转换成直流电流输出；或 homopolar 发电机一直流电流，而无需一换向器。

Record data include generator voltage UG1,UG2, auto setting value UGREF,manual setting value IFREF, trigger angle ARF, active power P, reactive power Q, rotor voltage Ufd, field current Ifd, generator frequency F0, local cabinet output current ILA, other cabinet output current ILB.

记录的数据包括发电机电压UG1，UG2，自动给定值UGREF，手动给定值IFREF，触发角 ARF，有功功率P，无功功率Q，转子电压Ufd，励磁电流 Ifd，发电机频率F0，本柜输出电流ILA，它柜输出电流ILB。

In this paper, the generator model of constant transient voltage and the invariableness impedance model was used, and the saliency of generator is included; through the analysis of the characteristic of the network equation calculation in the transient stability analysis, a new node ordering algorithm is proposed. Better initial value can accelerate the convergence rate of the networking equations, reduce the number of iterations, thus to cut down the amount of calculating time.

本文首先建立了适合于暂态稳定分析的简单模型，其中发电机采用E_q恒定模型，考虑了发电机的暂态凸极效应，负荷采用恒定阻抗模型；研究了电力系统的暂态稳定分析方法，指出目前数值积分暂态稳定计算方法中存在的不足，主要是网络方程的求解速度过慢；分析了暂态稳定计算中网络方程的特点，将稀疏技术应用于网络方程的求解，提出了一种新的节点编号方法——最小度最小有源节点道路集算法，减少了网络方程的计算量；在进行交替迭代求解时，将预测算法应用于每一积分步网络方程功角和电压的初值估计当中，应用自回归算法和广义延拓算法，期望给出一个更有效的电压和功角初值方案，来加快方程的收敛过程，减少方程迭代的次数，以提高计算速度。

The dissertation analysis different measurement on channel frequency,different vibration signals sets and different location to form each ICA result.With regard to the failure diagnosis of the turbine generator operation,the study has explored the possibilities to detect the failure diagnosis source from the measurement signals.It has also provided sufficient analysis case for the application of separation to detecting failure source on the turbine generator.2.Aiming at the engineering application of overcomplete bases ICA,the dissertation has raised virtual channel on the new method of ICA.It take advantage of some testified knowledge to the constitution of ICA known as, together with other measurement signal to proceed ICA separation,which can increase frequency on the input signal.

分析了以不同测量通道数量、不同振动信号类型组合和不同测点位置组成输入信号的ICA分离效果，并对机组在故障状态下，从测量信号中分离出故障源的可能性进行了探讨，为ICA在汽轮机振动故障源分离方面的应用提供丰富的分析实例。2针对超完备基ICA的工程应用问题，提出附加虚拟通道ICA的新方法，利用某些已经具有先验知识的独立分量构成附加输入信号，与其它测量信号组合在一起进行ICA分离，达到增加输入信号数量的目的。

Create Jinfeng 62 (1.2MW) temperature model of mathematics and physics about permanent magnent synchronous generator in wind power, present basic hypothesis and boundary condition. select area that one slot opposite to calculate, utilize FEM calculate roter and stator temperature field. bring forward actual method, carefully analyse the result to generator temperature field, for example reduce coil insulation thickness, decrease conduction coefficient because insulation aging between circle, increase iron-core anisotropism conduction coefficient.

建立了金风62型(1.2MW)永磁同步风力发电机的二维温度场的数学和物理模型，给出了计算边界条件和分析假设条件，以一个槽所对应的电机计算区域，利用有限元方法计算发电机的定、转子温度场，详细分析了绕组线棒绝缘厚度减小、匝间绝缘老化致使导热系数减小、铁心各向异性导热系数提高等参数改进对于发电机温度场的影响。

Noise can be reduced by about 2 dB by using oil-resistant rubber isolator to reduce solid-borne sound transmission; the setting-up of semienclosed noise barriers can not only reduce the work region's noise of workshop by 13 dB, but also adapt to the gas's characteristic involved with H2S, CO, and other poisonous components without supplied mandatory ventilation; locating the noise absorbers on the walls and ceiling of workshop can reduce noise by 8 dB; the exhaust silencer's elimination volume can reach above 30 dB which is designed in accordance with the exhaust noise spectrum characteristic of gas-combustion generator. By the combination of these measures, the noise of the gas- combustion generator will be under effective control, so that the gas power plant's noise pollution problems can be resolved.

通过选用耐油性好的橡胶隔振器减少固体传声，可降低噪声约2 dB；设置半封闭式机组隔声屏障可降低生产车间工作区域内的噪声达13 dB，并且适合瓦斯发电气源中含有H2S、CO等有毒有害气体的特点，不需增加强制通风措施；在生产车间四周墙壁和顶棚上敷设吸声体，最大可降低空间噪声8 dB；根据瓦斯发电机排烟噪声频谱特性设计的阻抗复合式消音器的消音量可以达到30 dB以上。

Arbitrary waveform generator is widely used in experiment and practical work as signal sourer. Apply the HSO function of 8OC198KC MCU to generate PWM waveform, then use the PWM to compose arbitrary waveform. The concrete hardware control circuit and the software realization method are presented. Then take the three-phase SPWM waveform generator for example, pot forward the application circuit and show the result of test. Experiment shows that the waveform distortion of sine, triangle and sawtooth is small and the operation is simple. The performance is high.

任意波形发生器作为信号源，在实验教学和实际工作中有着广泛的应用；应用Intel公司80C196KC单片机的HSO功能产生PWM波形，再由FWM波合成频率在20~100Hz之间的任意波形；设计了具体的硬件控制电路和详细的软件实现方法，并以三相SPWM波形发生器为例，给出了实际应用电路及其测试结果；实验结果表明，该波形发生器产生的三相正弦波，三角波、锯齿波失真度小，操作简单，直观，性能价格比高。

This paper presents an introduction to Pelton type hydraulic-generator set for Yunnan Supa river A'Jiutian hydroelectric power station, is of domestic maximum capacity Pelton type hydraulic-generator set designed and manufactured by our company for the moment.

本文介绍了我公司为云南省苏帕河阿鸠田水电站设计制造的冲击式水轮发电机机组，系我国目前自行设计制造的国内最大容量的冲击式水轮发电机机组。

According to the characteristics of multi-generator model and results of system digital simulation research, a new design and set scheme of underfrequency load shedding equipment on the basis of multi-generator system is developed in this paper.

同时根据多机模型特点及仿真结果提出了一种基于多机系统的低频减载设计和整定新方案，与传统方案相比，该方案提高了低频减载性能及系统运行方式的适应性。

The steam generator, in the incorporate type of the high-temperature gas-cooled reactor, should be of the compact structure, the least heating surface and the higher power density in order to decrease the volume of the initial-stress concrete pressure vessel, there by the steam generator with the uniflow multi-start helical coiled tubes is used generally for it possessing all these characteristics.

该下载资料由本站会员上传，如果侵犯了您的权力，请通知我们，将立即删除！摘要在采用一体化布置的高温气冷堆中，为了使预应力混凝土压力容器体积不致过大，蒸汽发生器应尽量紧凑，严格限制受热面空间布置，并要求其具有较高的功率密度。因此，一体化布置的高温气冷反应堆主要选用直流型多头螺旋管式蒸汽发生器。

In contrast to the ubiquitous rising-sun-with-rays military flag of the Japanese, Chinese banners and ensigns feature a range of designs.

与遍地都是的太阳军旗不同，中国人的旗帜和徽章设计得各式各样。

From their small corner of Feng's Guangzhou headquarters -- a jumble of pink leashes, squeezable rubber steaks, and plastic doggy Santas for Fido's stocking -- Soleil's designers come up with at least five new products a month.

从Feng 设在广州总部的产品展示柜台上可以看到，Soleil的设计师每月至少设计出5件新产品。