查询词典 turbine generator

In order to produce domestic controllers of wind turbine generators, by analyzing corer problems, hardware type-choosing methods and software control processing, a solution to the pitch control algorithm of the MW wind turbine generator controller is proposed, based on the PID control of blade's rotate speed, accelerated speed and pitch angle.

为实现风力发电设备核心控制器国产化，通过分析风力发电机核心控制器所要解决的主要问题、硬件选型方法和软件控制流程，对兆瓦级变桨变速风力发电机组核心控制器提出基于叶轮转速、加速度和角度PID控制的变桨控制算法解决方案。

In this paper, the time constants of turbine-generator set, the adjustment error coefficient of governor and frequency error in power system are studied, mostly including introducing to of the new control performance, building model for interconnection, analysis of characteristics of turbine units and imitation of example.

本文对其中的汽轮发电机组各时间常数、调速器的调差系数以及频率偏差系数对其评价的好坏进行了研究，主要包括新的控制性能标准介绍和互联系统建模、机组特性分析以及算例仿真三个方面。

Some new method is presented in this paper: A. An Integrated parameters computation method to analysis asynchronous operation of the turbine generator is given, including the equivalence of short circuit and open circuit of field windings, deducing boundary condition of 〓 method and computing frequency parameters. B. A new memory structure for sparse complex matrix and a PCCG method based on it are introduced to save memory and computation time. C. An equivalent method of vacuum is presented, and effectively eliminate the effect of corner point and accelerate convergence of PCCG method. D. Coupling the computation of electromagnetic and temperature field is discussed and model for computing temperature field of the turbine generator rotor at asynchronous operation is built.

文中提出了以下新方法：(1)在失磁异步运行转子三维涡流场计算中提出了完整的参数计算方法，其中包括励磁绕组开、短路的等效，〓法边界条件的推导及频率参数的计算方法；(2)提出了铁心内空气域的等效方法，有效地解决了开槽引起的角点奇异问题，并提高了方程组的迭代收敛速度；(3)在〓法有限元模型中，创立了一种能节约内存、提高计算速度的压缩存储矩阵格式，并建立了基于该格式的方程组解法；(4)提出了涡流电磁场和温度场两种不同场计算的合理结合方法，建立了转子三维稳态和时变温度场的有限元计算模型。

Firstly, the meaning of dynamic analysis on the steam turbine-generator set foundation is pointed out. Review and comment on the present research on dynamic analysis of domestic and international steam turbine-generator sets are presented Then a dynamic calculating model of the framed foundation of the steam turbine-generator set is set up based on finite element theory. Then dynamic analysis methods are put forward based on dynamics theory. The dynamic design of the foundation of the specific 12,000KW steam turbine-generator set is carried out.

论文首先指出汽轮发电机组基础动力分析的意义，并对国内外汽轮发电机组基础动力分析的研究现状进行了回顾及评述；其后，利用有限元原理建立了汽轮发电机组框架式基础的动力计算模型，根据动力学理论对该模型提出了自由振动分析和动力响应分析的方法，针对某工程12000KW汽轮发电机组的动力基础进行了动力设计。

It is believed to launch large scale of monitoring on large scale of turbine generator set,failure diagnosis method and new technology research,which exercise significant impacts on maintaining the operational quality and the safety for the sophistical turbine generator equipment.

深入开展大型汽轮发电机组状态监测与故障诊断新方法与新技术的研究，对于保障这类大型复杂设备的安全可靠运行具有重要意义。

For the purpose of this insurance a Steam Turbine Generator shall comprise the steam turbine and generator complete including exciter and generator cooling plant but not beyond the limits of the inlet steam stop-valve generator terminals or condenser steam inlet point.

为了本保险合同目的，一个蒸汽涡轮发电机包括蒸汽涡轮机、发电机，其中发电机包含励磁机和发电机制冷设备，但该机组以蒸汽进口截止阀、发电机接线柱或蒸汽冷凝器入口点为限。

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。

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。

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。

The order comes after China Nuclear Power Engineering Co, a subsidiary of Chinese utility China Guangdong Nuclear Power Co and Dong Fang, signed an agreement for the design, manufacturing and supply of the steam turbine-generator packages, which comprise an "Arabelle" steam turbine, a 4-pole turbo generator, a condenser and moisture separator reheaters.

此订单是继中国广东核电集团有限公司的全资公司中国核电工程有限公司与东方电气签署的为核电站提供蒸汽涡轮发电机的合作订单，此次提供的机器由&Arabelle&蒸汽涡轮机、一个4电极涡轮增压发电机、一个电容器和湿气脱离器组成。

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。