PLANT CONTROL APPARATUS AND COMBINED CYCLE POWER PLANT

    公开(公告)号:EP2995784B1

    公开(公告)日:2018-09-05

    申请号:EP15184211.9

    申请日:2015-09-08

    CPC classification number: F01K23/101 F01K7/165 F01K7/24 F01K11/02 Y02E20/16

    Abstract: In one embodiment, a combined cycle power plant includes first and second superheaters to generate first and second main steams, first and second reheaters to heat first and second discharge steams to generate first and second reheat steams, and a steam turbine to be supplied with the merged first and second reheat steams. The plant further includes a first valve to adjust a flow rate of the first discharge or reheat steam, and a second valve to adjust a flow rate of the second discharge or reheat steam. A plant control apparatus includes a determination module to determine a target opening degree of the second valve by using flow rates of the first and second main steams, and a controller to compare the determined target opening degree with a valve opening degree of the second valve and to control the second valve based on a comparison result.

    METHOD FOR INCREASING AN EMISSIONS COMPLIANT LOAD RANGE FOR A COMBINED-CYCLE SYSTEM
    16.
    发明授权
    METHOD FOR INCREASING AN EMISSIONS COMPLIANT LOAD RANGE FOR A COMBINED-CYCLE SYSTEM 有权
    用于增加组合循环系统的排放依从性负载范围的方法

    公开(公告)号:EP2577025B1

    公开(公告)日:2018-05-09

    申请号:EP10731893.3

    申请日:2010-07-07

    Abstract: A method is provided for increasing an emissions compliant load range (50) for a combined-cycle system (10). The method includes bypassing an air flow from a compressor (14) to a HRSG (20), to form a mixture of bypassed air and exhaust gas sent from a turbine outlet (42), as the operating load is reduced from the intermediate load level (57) to a lower load level within the range (50), to have a cooling effect on the temperature (61) of the mixture at the HRSG (20). The method further includes increasing an exhaust temperature set point of the turbine (18), to increase the temperature (60) of the exhaust gas above an emissions compliant threshold temperature (62), and have a heating effect on the temperature (61), such that the heating effect and the cooling effect at the HRSG (20) limit the time rate of change of the temperature (61).

    POWER GENERATION SYSTEM AND METHOD FOR CONTROLLING POWER GENERATION SYSTEM
    19.
    发明授权
    POWER GENERATION SYSTEM AND METHOD FOR CONTROLLING POWER GENERATION SYSTEM 有权
    发电系统和控制发电系统的方法

    公开(公告)号:EP2963253B1

    公开(公告)日:2018-04-11

    申请号:EP15754634.2

    申请日:2015-02-09

    CPC classification number: F01K23/16 F01K23/065 F01K23/101 Y02E20/16

    Abstract: A power generation system and a control method of a power generation system that control output sharing for stable operation due to a change of generated power are provided. The power generation system (100) includes a power turbine (7) that is driven by exhaust gas generated by an engine, a steam turbine (9) that is driven by steam generated by the exhaust gas of the engine, a turbine generator (25) that is connected to the power turbine (7) and the steam turbine (9), a TPC (57) that controls an output of the steam turbine (9), and a PMS (53) that controls load sharing of an output of the power turbine (7) and the output of the steam turbine (9). Here, when the power turbine (7) is started, an increase instruction request for increasing an available power of the turbine generator (25) is performed.

    Apparatus for starting up combined cycle power systems and method for assembling same
    20.
    发明公开
    Apparatus for starting up combined cycle power systems and method for assembling same 审中-公开
    用于启动联合循环动力系统的设备及其组装方法

    公开(公告)号:EP2500547A3

    公开(公告)日:2018-04-11

    申请号:EP12159192.9

    申请日:2012-03-13

    Abstract: A steam conduit heating system (200) includes at least one electric heating element (220) coupled to at least a portion of a steam conduit (112). The system also includes at least one conduit heating controller (230) operatively coupled to the at least one heating element and programmed to vary a rate of temperature change in the portion of the steam conduit, wherein the at least one controller is further programmed to vary the rate of temperature change in the portion of the steam conduit as a function of at least one of a mass of the portion of the steam conduit, and a shape of the portion of the steam conduit.

    Abstract translation: 蒸汽管道加热系统(200)包括联接到蒸汽管道(112)的至少一部分的至少一个电加热元件(220)。 该系统还包括至少一个管道加热控制器(230),其可操作地连接到至少一个加热元件并被编程以改变蒸汽管道部分中的温度变化率,其中该至少一个控制器被进一步编程以改变 作为所述蒸汽管道的所述部分的质量和所述蒸汽管道的所述部分的形状中的至少一个的函数的所述蒸汽管道的所述部分中的温度变化率。

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