发电机

As a kind of optimization method, The Lagrange multiplier method is discussed in this paper.

本文首次提出了一个新的发电机无功功率生产成本的计算方法。

Based on minus latent root to estimate stability,mathematical model of every element in system and the calcuating way about static state stability are introduced and the feasibility of this way is validated by using a calculation instance.

应用劳斯稳定判据原理和小振荡法原理对含风力发电机的电力系统建立了各元件的数学模型并进行了静态稳定计算与分析，并以一计算实例验证其方法的可行性。

Based on the linear model of governing object,this paper calculates the turbine transfer coefficients and six Ki parameters of generator in different work point,and the effect of these changing on latent root are calculated.

以调节对象线性化模型为基础，从1个实例计算入手，计算了不同工况下水轮机传递系数和发电机6个参数的变化情况，进而计算这些参数变化对调节对象特征根的影响。

The whirr of flapping leathern bands and hum of dynamos from the powerhouse urged Stephen to be on.

374电力站发出的皮带旋转的噼噼啪啪声以及发电机的隆隆声催促着斯蒂芬赶路。

One of the first to do this was Pieter van Musschenbroek of Leyden, Holland. In 1746 he wrapped a water-filled jar with metal foil and discovered that this simple device could store the energy produced by an electrostatic generator.

第一次去做这项研究的是荷兰 Leyden 的 Pieter van Musschenbroek.1746，他用一个金属箔片包一个装满水的罐子，发现这种简单的设备能储存由静电发电机产生的能量。

What is the limit of voltage regulation error of the generator?

发电机调压误差的极限是多少？

The Lister engine generator has now been running in the shed on and off since October.

在李斯特发电机已运行在下跌和关闭自去年10月以来。

Through mathematical reasoning, this article found the relationship between the output voltage and the load, the curve of the generator external characteristic being provided.

本文运用数学推理的方法找出了同步发电机的输出电压与负载电流及负载性质之间的关系，确立了发电机外特性曲线的具体形状。

In York, Maine, 70-year-old lobsterman Pat White , was able to use his generator to help cook a pancake breakfast Saturday to feed his neighbors who were without power - a father, his daughter and her baby.

星期六，缅因州纽约市的70岁老人，用他的发电机给他的邻居一家，父亲，女儿和孩子做了个煎饼，他的邻居没有电。

For the voltage space vector close loop control-based strategy, based on the proportional-plus-integral-based control scheme, a new control scheme composed of an adaptive resonant controller and a PI controller is proposed in the paper, by which the stator voltage waving is almost elimited, and a very well control performance is achieved for stator voltages, naturally, the softly cut-in control is realized.

针对基于空间电压矢量闭环控制的这一投切方案，在PI调节器控制的基础上提出了自适应谐振调节器与PI调节器并行控制的控制策略，有效抑制了定子电压幅值的波动，使定子电压具有较好的控制响应，进而实现了双馈风力发电机零电流切入电网的目的。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。