发电机组

In this paper, five kinds of two dimensional finite element models are developed,and an analysis of a fixed pad bridge bearing load cell in large turbine generator sets is made.

引 言在大型汽轮发电机组中，若干个转子联结成一个轴系，轴系中 1 0个左右不同类型的轴承共同支承着转子系统的各种载荷。固定瓦轴承就是其中的一种。

In this paper,the three dimensions finite element analysis on a 2 pad tilting pad bridge bearing load cell in large turbine generator sets has been made.

对大型汽轮发电机组剪切桥式两可倾瓦轴承负荷传感器结构进行了三维有限元分析，研究了不同边界条件对传感器结构应力场的影响，计算与试验结果对比表明；所建立的有限元模型是正确的，具有较高的计算精度，可将其用于两可倾瓦轴承负荷传感器最优结构设计。

A three dimensional finite element analysis on the structure of 4 tilting pad bridge bearing load cell in large turbine generator sets has been made.

对大型汽轮发电机组四可倾瓦轴承双剪桥式负荷传感器结构进行了三维有限元分析，研究了不同边界条件对传感器结构应力场的影响。

Experiment Study on the Long-Term Stability of Bearing Load Cell in large turbine-generator sets;2. Study on the Assembly Shearing Bridge Load Cell for Two Pad Tilting Pad Bearing;3. D FEM analysis of a load cell with on 2 pad tilting pad bridge bearing in large turbine generator sets has been made.

本文对大型汽轮发电机组剪切桥式两可倾瓦轴承负荷传感器结构进行了二维有限元分析，研究了不同边界条件对传感器结构应力场的影响，计算与试验结果对比表明：所建立的有限元模型基本是正确的，可将其用于两可心倾瓦轴承负荷传感器结构设计。

In this case, it applies two 35 t/h forward-turning chain grate boilers with 3.92 MPa and 450℃, and one 6000kW steam extraction turbine power generator to replace original six 10t/h 0.78 MPa boilers, so as to realize co-generation.

此案例是用2台35吨/时3.92兆帕、450摄氏度正转链条锅炉和1台6000千瓦抽凝式汽轮发电机组，取代6台10吨/时0.78兆帕旧锅炉，实现热电联产。

It's an effective measure of fast valving in improving the dynamic stabilities of power system and preventing the overspeed of steam turbines, but the fast valving technique available can satisfy the need of modern steam turbines no more. On the basis of the new type fluid logic valve, which combines the regulating systems and safety systems happily, the steam turbine EHC based on new principle is put forward, one of its outstanding characteritics is, the fast valving is operating in a closed control loop. For the implementation of control for steam generator regulation and safety systems with nonlinear mult-operating modes, a new methodology for designing a fuzzy logic controller is proposed, which is based on the combination of"error phase plane"and"variable universe of discourse". Application of a double-mode FLC with the new methodology is presented, the validity of the design methodolody is desmonstrated by test; A new methodolody is also presented to improve the design and tuning of a FLC using variable structure control theory.

本文还详细讨论了快关控制在提高电力系统暂态稳定性及超速保护中的应用，分析了现有的快关控制规律的局限性，研究出一种基于新型快关阀的汽轮机电液控制系统，其突出特点是使汽轮机闭环快关成为现实，指出这种基于新的组成原理与设计方法的汽轮机电液控制系统对不同工况下的适应能力；针对汽轮发电机组多工况、非线性的特点，提出一种把&误差相平面&方法与&可变论域&思想有机结合的双模FLC设计与调整的新方法，试验结果表明该系统具有良好的动、静态特性；为改善FLC控制规则的设计与调整，作者还介绍了一种把滑模变结构理论成功应用于模糊系统设计的新方法。

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A fifth-order uncertain non-affine nonlinear model is presented. The proposed model can describe the dynamic characteristics of both DC and AC system. The difference of damping factor and inertial time constant between generator units is considered in the model.

综合考虑AC/DC系统交、直流部分的动态特性及其实际电力系统中各发电机组的阻尼系数和惯性时间常数的不同性，提出了一类五阶非仿射非线性的控制模型。

Analyzing on the fault of local rubbing caused by compatible misalignment of rotors, a dynamic model for the rotor system with misalignment and rub-impact was established. Then the dynamic behaviors of this system, which varied with the values of parallel misalignment and declination, were investigated by using numerical integral method.

以水轮发电机组转子系统为研究对象，针对刚性联轴器综合不对中引起转子局部碰摩的问题，建立了机组转子不对中–碰摩耦合故障的动力学模型和微分方程，并利用数值积分方法研究该系统随不对中平行量和偏角参数变化的动力学行为。

Is a company specializing in small-scale power machinery company, founded in 1997, the main production of small gasoline engine, small diesel engines, generator sets, Brush Cutter and aluminum die castings, has been 10 years of development and production history, product has excellent quality and reasonable prices received by domestic and international clients affirmation become peer leader.

永康市吉能动力机械有限公司是一家专业于小型动力机械的公司，创建于1997年，主要生产小型汽油机，小型柴油机，发电机组，割灌机及铝压铸件，至今已有10多年的开发与生产历史，产品已以优良的质量及合理的价格深受国内外客户的肯定，成为同行中的佼佼者。

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。