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    • 2. 发明专利
    • Valve control device, gas turbine and valve control method
    • 气门控制装置,气体涡轮和阀控制方法
    • JP2013113201A
    • 2013-06-10
    • JP2011259473
    • 2011-11-28
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • SAITO AKIHIKOSONODA TAKASHIUDA KEIJIFUJII FUMITOMO
    • F02C9/28F01D17/20F01D17/24F02C7/22F02C9/50
    • F02C7/232F02C7/22F02C9/263F02C9/28F02C9/32F02C9/50F05D2220/76F05D2270/02F05D2270/05F05D2270/061F05D2270/091F05D2270/301
    • PROBLEM TO BE SOLVED: To prevent the output of a gas turbine from being destabilized even when a load is suddenly reduced.SOLUTION: The valve control device 50 is provided on a gas turbine 12 including: a combustor 22 which generates combustion gas by combusting fuel; a turbine 24 which is driven by the combustion gas generated by the combustor 22; a flow adjusting valve 42 which adjusts the flow rate of the fuel to be supplied to the combustor 22; and a pressure adjusting valve 44 which is disposed on the upstream side of the flow adjusting valve 42 in a fuel flow passage 40 for supplying the fuel to the combustor 22 to adjust the fuel pressure, wherein the valve control device controls the opening of the pressure adjusting valve 44. The valve control device 50 includes a load reduction detection unit 52 which detects a reduction in load of the gas turbine 12; and a pressure control unit 56 which controls, when the load reduction is detected by the load reduction detection unit 52, the opening of the pressure adjusting valve 44 according to the output of the gas turbine 12 after the load reduction.
    • 要解决的问题:为了防止燃气轮机的输出即使在负载突然减小时也不稳定。 解决方案:阀控制装置50设置在燃气轮机12上,燃气轮机12包括:燃烧器22,其通过燃烧燃料产生燃烧气体; 由燃烧器22产生的燃烧气体驱动的涡轮机24; 调节供给到燃烧器22的燃料的流量的流量调节阀42; 以及压力调节阀44,其设置在燃料流路40中的流量调节阀42的上游侧,用于将燃料供给到燃烧器22以调节燃料压力,其中,阀控制装置控制压力的打开 调节阀44.阀控制装置50包括检测燃气轮机12的负载减少的负载降低检测单元52; 以及压力控制单元56,其在负载降低检测单元52检测到负荷降低时,根据燃料轮机12的输出在负载减小之后进行控制。 版权所有(C)2013,JPO&INPIT
    • 3. 发明专利
    • Combustion temperature quick detection device
    • 燃烧温度快速检测装置
    • JP2005036691A
    • 2005-02-10
    • JP2003198913
    • 2003-07-18
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • NAKAMURA CHIKASUKEFUJII FUMITOMOUCHIDA SHINYATOYAMA KOZOONO HITOI
    • G01K7/00F01D21/00F02C9/00F02C9/28G01K7/42G01K13/02
    • G01K7/42F01D21/003F02C9/28F05D2270/083F05D2270/303G01K13/02G01K2205/04
    • PROBLEM TO BE SOLVED: To provide a combustion temperature quick detection device capable of quickly detecting a combustion gas temperature by processing temperature detection signals.
      SOLUTION: This combustion temperature quick detection device 10 comprises a phase advancement processing part 11A to detect the combustion gas temperature in a combustor 3 at high speed by offsetting the detection delay of the temperature detection signals. Also the device 10 comprises a primary delay filtering processing part 12 with a time constant of 0.25 sec, a phase delay treatment part 11B with a time constant of 10 sec, a temperature variation filtering processing part 13 with a cutoff frequency of 2 to 3 Hz, and a disturbance filtering processing part 14 having primary delay filtering processing parts 14A and 14B with time constants different from each other and a high valve selection processing part 14C. Thus, the combustion gas temperature suitable for a gas turbine device 1 can be detected quickly.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供能够通过处理温度检测信号来快速检测燃烧气体温度的燃烧温度快速检测装置。 解决方案:该燃烧温度快速检测装置10包括相位提前处理部分11A,通过抵消温度检测信号的检测延迟来高速检测燃烧器3中的燃烧气体温度。 另外,装置10包括时间常数为0.25秒的主延迟滤波处理部分12,时间常数为10秒的相位延迟处理部分11B,截止频率为2至3Hz的温度变化滤波处理部分13 以及具有时间常数彼此不同的主延迟滤波处理部14A,14B以及高阀选择处理部14C的扰动滤波处理部14。 因此,可以快速地检测适合燃气轮机装置1的燃烧气体温度。 版权所有(C)2005,JPO&NCIPI
    • 5. 发明专利
    • Gas turbine control device and power generation system
    • 气体涡轮控制装置和发电系统
    • JP2012117449A
    • 2012-06-21
    • JP2010267718
    • 2010-11-30
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • KISHI MASATOFUJISHIMA YASUOSONODA TAKASHIHIRAFUJI KOICHIROTAKADA YASUTSUGUFUJII FUMITOMO
    • F02C9/28F01D15/10
    • H02P9/04F02C9/28F05D2270/061F05D2270/702F05D2270/705F05D2270/706
    • PROBLEM TO BE SOLVED: To suppress hunting which occurs in the output of a power generator when a load range is lower than a rated load such as during a trial operation or immediately after adding a load.SOLUTION: A gas turbine control device is used in power generation equipment comprising a gas turbine and a power generator which generates electricity from at least rotation power transmitted from the gas turbine, and comprises a first control unit which obtains a first fuel control command in order to make the output of the power generator comply with a power generator output set value decided on the basis of a requested load. The first control unit comprises a feedback control unit 60, and the feedback control unit 60 comprises: a subtraction unit 62 for calculating deviation of the output of the power generator with respect to the power generator output set value; a PI control unit 64 disposed at a post-stage of the subtraction unit 62 in the control; and a peak suppressing unit 66 for suppressing peaks in the amplitude characteristics of the power generator or a system including the power generator.
    • 要解决的问题:当负载范围低于额定负载(例如在试运行期间或在加载之后)时,抑制在发电机的输出中发生的振荡。 解决方案:一种燃气轮机控制装置用于包括燃气轮机和发电机的发电设备,所述燃气轮机和发电机从至少从燃气轮机传递的旋转动力产生电力,并且包括第一控制单元,其获得第一燃料控制 命令,以使发电机的输出符合基于所请求的负载决定的发电机输出设定值。 第一控制单元包括反馈控制单元60,反馈控制单元60包括:减法单元62,用于计算发电机输出相对于发电机输出设定值的偏差; 设置在控制中的减法单元62的后级的PI控制单元64; 以及用于抑制发电机或包括发电机的系统的振幅特性的峰值的峰值抑制单元66。 版权所有(C)2012,JPO&INPIT
    • 8. 发明专利
    • ANTI-SURGE CONTROLLER
    • JPH1047079A
    • 1998-02-17
    • JP20589496
    • 1996-08-05
    • MITSUBISHI HEAVY IND LTD
    • FUJII FUMITOMO
    • F02C3/28F02C7/057F04D27/02F22B35/00
    • PROBLEM TO BE SOLVED: To improve the limitation of a load changing rate when a boiler load is reduced, by providing an inlet guide vane by which an inlet of supply air to a compressor is closed when the boiler load is reduced and a supply air amount to a boiler is limited, and also providing a blow-off valve which blows a part of the supply air amount to the boiler on the downstream side of the compressor. SOLUTION: A pressure fluidized bed compound power plant is equipped with a gas turbine 2 by which high temperature exhaust heat (combustion) gas is fed from a fluidized bed boiler in a pressure container 1, and a compressor 3 by which air for combustion is fed to the fluidized bed boiler, and an inlet guide vane(IGV) 4 for throttling a supply air amount to the pressure container 1 is arranged in this compressor 3. Also, a blow-off pipe 7 in which a blow-off valve 8 is interposed, is connected between the delivery port of the compressor 3 and an exhaust gas pipe 6, and the blow-off valve 8 is controlled by a controller 11 according to the output of a pressure detector 10 by which the discharge pressure of the compressor 3 is detected. That is, the supply air amount corresponding to a limit amount more than a supply air limit amount in a lowest allowable opening for preventing surging by the closing operation of the IGV 4, is blown and controlled by the blow-off valve 8.