Method of scheduling maintenance actions
    1.
    发明公开
    Method of scheduling maintenance actions 审中-公开
    Verfahren zur Zeitplanung vonInstandhaltungaktivitäten

    公开(公告)号:EP1513085A1

    公开(公告)日:2005-03-09

    申请号:EP03405654.9

    申请日:2003-09-08

    CPC classification number: G06Q10/109 G06Q10/063

    Abstract: The present invention is concerned with the scheduling of maintenance actions such as washing events for a compressor of a gas turbine. An overall cost function including fuel/power price forecasts is evaluated/optimised in order to determine the advisability of a washing event. The cost function depends on a state vector comprising both Integer/Boolean and continuous state variables which are interconnected via a set of rules or constraints. Mixed Integer Programming (MIP) is a used for implementing the inventive procedure.

    Abstract translation: 本发明涉及诸如燃气轮机的压缩机的洗涤事件等维护动作的调度。 评估/优化包括燃料/电力价格预测在内的整体成本函数,以确定洗涤事件的可行性。 成本函数取决于包括通过一组规则或约束互连的整数/布尔和连续状态变量的状态向量。 混合整数编程(MIP)是用于实现本发明的程序。

    Design of thick-walled components for power plants from crack-growth models
    2.
    发明公开
    Design of thick-walled components for power plants from crack-growth models 审中-公开
    厚壁用于电厂的裂纹扩展模型帮助组件的设计

    公开(公告)号:EP1429219A1

    公开(公告)日:2004-06-16

    申请号:EP02406085.7

    申请日:2002-12-10

    CPC classification number: G05B17/02 G05B15/02

    Abstract: In a method and a computer program product for designing a component for an industrial plant, in particular a thick-walled component for a power plant, by means of an iteration, in which the steps of

    computing a plurality of process variables by means of a process simulator;
    modelling growth of at least one hypothetical crack in the component, based on a structure of the component and the process variables;
    computing a life expectancy for the component by determining a time required for a dimension of the hypothetical crack to exceed a given critical limit;
    modifying the structure of the component;
    are repeated until the time required for the crack dimension to exceed the given critical limit fulfils a pre-determined requirement, a time dependent load-profile and a dynamic process simulator capable of modelling transient process behaviour is used to compute the process variables.

    Abstract translation: 在一种方法和用于在特定的工业计划的厚壁元件用于电力,通过迭代的方式,计划设计一个部件的计算机程序产品,其中计算过程变量的多个步骤通过的手段 过程模拟器; 在组件的至少一个假想裂纹,基于所述组件和所述过程变量的结构的建模增长; 计算寿命为通过确定性开采假想裂纹超过给定临界极限的尺寸所需要的时间的部件; 修改组件的结构; 被重复,直到用于裂纹尺寸超过给定临界极限所需的时间满足被用于计算所述过程变量的预定要求,依赖于时间的负载分布并且能够建模暂态过程的行为的动态过程仿真器。

    System and associated method for monitoring and controlling a power plant
    3.
    发明公开
    System and associated method for monitoring and controlling a power plant 审中-公开
    系统和工具Verfahren zurÜberwachungund Steuerung eines Kraftwerks

    公开(公告)号:EP2336637A1

    公开(公告)日:2011-06-22

    申请号:EP09179051.9

    申请日:2009-12-14

    Abstract: A control system, for use with a power plant having a mill for pulverising material for input into a combustion system of the power plant, the control system comprising:
    a first sensor (12), for recording a first parameter of a first output from the combustion system;
    a second sensor (14), for recording a second parameter of a second output from the combustion system;
    an adjuster system (16), for adjusting and recording at least one variable parameter of the combustion system;
    a state estimator (18) component operable to receives a first signal relating to such first parameter, a second signal relating to such a second parameter and a third signal relating to such at least one variable system parameter, the state estimator component being operable to use the first signal, second signal and third signal to produce a material parameter indicator signal (20) and a system state indicator signal (22); and
    an output component (24) operable to receive such a material parameter indicator signal and such a system state indicator signal and to combine said material parameter indicator signal and system state indicator signal to produce an output control signal.

    Abstract translation: 一种控制系统,用于具有用于输送到所述发电厂的燃烧系统中的用于粉碎材料的研磨机的发电厂,所述控制系统包括:第一传感器(12),用于记录来自所述发电厂的第一输出的第一参数 燃烧系统; 第二传感器(14),用于记录来自所述燃烧系统的第二输出的第二参数; 调节器系统(16),用于调节和记录所述燃烧系统的至少一个可变参数; 状态估计器(18)组件,可操作以接收与这样的第一参数有关的第一信号,与这样的第二参数相关的第二信号和与这样的至少一个可变系统参数相关的第三信号,状态估计器组件可操作以使用 第一信号,第二信号和第三信号以产生材料参数指示信号(20)和系统状态指示信号(22); 以及输出组件(24),其可操作以接收这样的材料参数指示符信号和这种系统状态指示符信号,并且组合所述材料参数指示符信号和系统状态指示符信号以产生输出控制信号。

    Optimal operation of a power plant
    5.
    发明公开
    Optimal operation of a power plant 无效
    Optimaler Betrieb eines Kraftwerks

    公开(公告)号:EP1316866A1

    公开(公告)日:2003-06-04

    申请号:EP01811159.1

    申请日:2001-11-29

    Abstract: In a method and computer program product for optimal operation of a power plant and a power plant optimising system an optimisation module (1) minimises a cost function ( J [ u ], J [ P ]) that comprises a deviation of lifetime of plant components ( LTp ( τ )) from a desired nominal lifetime trajectory ( LTn ( τ )). This is done by, at a given time, determining future values of input values ( u (τ), P (τ)) such as control values ( P (τ)) or process values ( u (τ)) to the plant and simulating, in a simulation module (2), the behaviour of the plant up to a given future time. Corresponding lifetime values are determined in the simulation, and incorporated in an objective function. The optimisation module (1) minimises the cost function ( J [ u ], J [ P ]) by varying the input values ( u ( τ ), P ( τ )). As a result, it is possible to operate the plant such that component lifetime ( LTp ( τ )) follows the desired trajectory ( LTn ( τ )).

    Abstract translation: 在用于发电厂和发电厂优化系统的最佳操作的方法和计算机程序产品中,优化模块(1)最小化包括植物组分(LTp(τ))的寿命偏差的成本函数(JÄuÜ,JÄPÜ) 从期望的标称寿命轨迹(LTn(τ))。 这通过在给定时间来确定植物的输入值(u(τ),P(τ))(例如控制值(P(τ)))或过程值(u(τ))的未来值来完成, 在模拟模块(2)中模拟植物在给定未来时间的行为。 相应的寿命值在模拟中确定,并入目标函数。 优化模块(1)通过改变输入值(u(τ),P(τ))来最小化成本函数(JÄuÜ,JÄPÜ)。 结果,可以操作设备,使得组件寿命(LTp(τ))遵循期望的轨迹(LTn(τ))。

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