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    • 1. 发明专利
    • DENITRATION CONTROL DEVICE
    • JPH0828249A
    • 1996-01-30
    • JP16241694
    • 1994-07-14
    • TOKYO ELECTRIC POWER COTOSHIBA CORP
    • KOKUBO TAKASHINAKAMOTO MASASHI
    • F01N3/08B01D53/34B01D53/56B01D53/74
    • PURPOSE:To perform feed forward control taking dynamic characteristics into consideration and feedback control taking a wasteful time into consideration by calculating a future ammonia inflow amount with which a future discharge NOx amount is caused to approximately coincide during setting of a future discharge NOx amount based on the dynamic characteristics model of a denitration reaction process. CONSTITUTION:An ammonia injection amount prediction computing means 55 uses generation NOx amount prediction data from a generation NOx amount prediction computer 51, discharge NOx set value data from a discharge NOx amount setter 52, discharge ammonia set value data from a discharge ammonia amount setter 53, and history data of process amount held at a data holding means 54. According to the dynamic characteristics model of a denitration process, an optimum ammonia injection amount during a specified period in which future discharge NOx amount and discharge ammonia amount are caused to approximately coincide with a future discharge NOx set value and discharge ammonia set value is orderly computed. Each time computation is effected, an ammonia injection amount at a point of control time is outputted as a set value signal 56.
    • 3. 发明专利
    • Controller for temperature of supplied water
    • 供水温度控制器
    • JPS59138705A
    • 1984-08-09
    • JP1136783
    • 1983-01-28
    • Toshiba Corp
    • NAKAMOTO MASASHI
    • F01K7/40F01K7/34
    • F01K7/345
    • PURPOSE:To maintain the thermal efficiency of a nuclear power plant by varying the flow rate of steam which is fed to a supply water heater according to the temperature of feed water so as to regulate the temperature of the water which is fed to the steam generator within the specified range. CONSTITUTION:The temperature of feed water which passed through feed water heaters 8a and 8b and is to go into a pile 1 is detected by a temperature detector 15. Based on the difference between the detected value and the set value of a temperature, controlling arithmetic operation such as PID or so is performed in a temperature regulator 16, which issues the control signal to control a regulation valve 10a or 10b. The signal of a steam flow detector 17 which measures the quantity of steam generated from the pile 1 is sent via a function generator 18 to the temperature regulator 16 to fix the set value of the temperature dependently on the quantity of the evaporated steam. The necessity of increasing the temperature of feed water more than needed may be avoided and the consumption of steam be therefore reduced, on account of which the temperature of feed water can be regulated without any reduction in thermal efficiency of the plant.
    • 目的:通过根据供水温度改变供给给供热水器的蒸汽流量,以调节供给蒸汽发生器的水的温度来保持核电厂的热效率 在指定范围内。 构成:通过供水加热器8a和8b进入堆1的给水温度由温度检测器15检测。根据检测值与温度设定值之间的差异,控制算术 在温度调节器16中执行诸如PID等的操作,其发出控制信号以控制调节阀10a或10b。 测量从堆1产生的蒸汽量的蒸汽流量检测器17的信号通过函数发生器18发送到温度调节器16,以将温度的设定值依赖于蒸发蒸汽的量来固定。 可以避免增加供水温度超过需要的必要性,因此可以减少蒸汽的消耗,由此可以调节给水的温度,而不会降低设备的热效率。
    • 4. 发明专利
    • Controlled parameter adjustment method and controlled parameter adjustment program
    • 控制参数调整方法和控制参数调整程序
    • JP2009175917A
    • 2009-08-06
    • JP2008012327
    • 2008-01-23
    • Toshiba Corp株式会社東芝
    • NAKAMOTO MASASHISHIMIZU YOSHIKO
    • G05B13/02
    • PROBLEM TO BE SOLVED: To directly decide a controlled parameter from a set of test data.
      SOLUTION: When adjusting a control parameter x which decides a transfer function C(x) of a control device 12 which controls a controlled object 11 by giving a manipulated variable u(t) with an open loop so that a response of the controlled variable y(t) of the controlled object 11 to a desired value r(t) may approach a reference model M, a test output signal string y
      1 (t) which is a time change of a controlled variable is extracted by giving a test input signal string u
      1 (t) changing with time of day to the controlled object, and the control parameter x is decided so that an evaluation function J which is a transformed error | |Mr(t)-PC(x)r(t)|| may become minimum. When noting to y
      1 (t)=Pu
      1 (t), the evaluation function J is represented by a transfer function C(x) of the control device 12 C represented by an unknown control parameter x, the known transfer function M, the test input signal string u
      1 (t) and the test output signal string y
      1 (t) and becomes J=| |Mu
      1 (t)-C(x)y
      1 (t)||. Note that || is a norm and it is a sign showing the length of geometric vector.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:从一组测试数据直接决定受控参数。 解决方案:当调整控制参数x时,控制参数x决定控制装置12的传递函数C(x),控制装置12通过给出一个开环的操作变量u(t)来控制受控对象11,使得响应 受控对象11的控制变量y(t)到期望值r(t)可以接近参考模型M,作为a的时间变化的测试输出信号串y 1(t) 通过给予与受控对象随时间变化的测试输入信号串u (t)提取控制变量,并且确定控制参数x,使得作为变换的评估函数J 误差¾¾Mr(t)-PC(x)r(t)¾¾可能变得最小。 当注意到y (t)= Pu 1(t)时,评估函数J由表示的控制装置12C的传递函数C(x)表示 通过未知的控制参数x,已知的传递函数M,测试输入信号串u 1(t)和测试输出信号串y 1(SB),并且变成 (t)-C(x)y (t)¾¾。 注意,¾¾是一个范数,它是一个显示几何向量长度的符号。 版权所有(C)2009,JPO&INPIT
    • 5. 发明专利
    • Method for operating combined cycle power generation plant
    • 组合循环发电厂的运行方法
    • JP2004116416A
    • 2004-04-15
    • JP2002281689
    • 2002-09-26
    • Toshiba Corp株式会社東芝
    • NAKAMOTO MASASHIZAKO AYAKO
    • F01K13/02F01K23/10
    • Y02E20/16
    • PROBLEM TO BE SOLVED: To provide a method for operating a combined cycle power generation plant starting operation of the plant for a short time according to operation restraints without generating excessive thermal stress of the plant. SOLUTION: This method includes a stage of establishing operation parameters of the plant as operation variables, a stage of establishing monitor parameters of the plant as restraints, a stage of establishing lead time PT for reaching designated power generation output as evaluation indexes, and a stage of solving an optimization problem for minimizing the evaluation indexes based on the operation variables and the restraints before start of operation and determining the operation parameters as the operation variables, in operation of the combined cycle power generating plant from start to the designated power generation output. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供一种根据操作约束在短时间内操作组合循环发电设备的运行方法,而不产生工厂的过热应力。 解决方案:该方法包括建立工厂运行参数作为运行变量的阶段,建立工厂监控参数的一个限制阶段,建立提前期PT达到指定发电量的阶段为评价指标, 以及在组合循环发电厂从开始到指定功率的操作中,基于操作变量和开始操作之前的约束来求解用于最小化评估指标的优化问题的阶段,并且确定操作参数作为操作变量 一代输出。 版权所有(C)2004,JPO
    • 6. 发明专利
    • GAS TURBINE CONTROLLER
    • JP2001263087A
    • 2001-09-26
    • JP2000077519
    • 2000-03-21
    • TOSHIBA CORP
    • NAGATA KAZUEINUBUSHI HIROYUKINAKAMOTO MASASHI
    • F02C3/30
    • PROBLEM TO BE SOLVED: To utilized suppliable nitrogen to the utmost to increase an output of a gas turbine and reduce motor power for a nitrogen compressor, in a gasification combined electric power plant. SOLUTION: This controller is provided with a nitrogen flow detector 4 for detecting a flow rate of nitrogen generated in an air separator 1 to be compressed via a nitrogen compressor 2, a nitrogen flow control valve 5 for controlling a nitrogen flow rate fed to a gas turbine combustor 6, a bias adding circuit 14 for adding a plus-directional bias with respect to a target nitrogen flow rate vale found based on a preliminarily set nitrogen feed function 10, an arithmometer 8 for comparison-operating an operated value added with a biased nitrogen flow rate provided hereinbefore, as a new target nitrogen flow rate value, with an output value of the detector 4, and a controller 7 for outputting an opening regulating command to the flow control valve 5 based on an output of the arithmometer 8.
    • 8. 发明专利
    • Pressure control device of auxiliary steam in combined generating equipment
    • 联合发电设备辅助蒸汽的压力控制装置
    • JPS61142307A
    • 1986-06-30
    • JP26495184
    • 1984-12-15
    • Toshiba Corp
    • HINO SHIRONAKAMOTO MASASHI
    • F01K23/10F22B35/00
    • F01K23/101F22B35/008Y02E20/16
    • PURPOSE:To improve controllability, by providing a pressure detector in a common auxiliary steam header for a plurality of combined generating equipments and controlling a pressure regulating valve, provided between each equipment and the auxiliary steam header, by an output of the pressure detector. CONSTITUTION:Three sets of combined generating equipments I-III are constituted by gas turbine exhaust boilers 1a-1c (hereinafter, the affixed alphabet is omitted), steam turbines 2 and generators 3, and a main steam pipe 4 of each equipment I-III connects with a common auxiliary steam header 9 through an auxiliary steam pipe 8 interposing respectively a pressure regulating valve 5, check valve 6 and an opening and closing valve 7. While the auxiliary steam header 9 is connected through an opening and closing valve 11 with a generator peripheral equipment 10 additionally provided in each equipment I-III. The above described equipment, providing a pressure detector 15 in the header 9, is constituted so as to control an opening of each pressure regulating valve 5 in accordance with an output from a pressure adjusting meter 16 collating a detection value of the detector 15 with the preset value of pressure.
    • 目的:为了提高可控性,通过在多个组合发电设备的公共辅助蒸汽集管中设置压力检测器,并且通过压力检测器的输出来控制设置在每个设备和辅助蒸汽集管之间的压力调节阀。 构成:由燃气轮机排气锅炉1a-1c(以下省略附加字母表),蒸汽轮机2和发电机3以及各设备I-III的主蒸汽管4构成三套组合式发电设备I-III 通过分别插入压力调节阀5,止回阀6和开闭阀7的辅助蒸汽管8与公共辅助蒸汽集管9连接。辅助蒸汽集管9通过开闭阀11与 发电机外围设备10另外设置在每个设备I-III中。 在集管9中设置压力检测器15的上述设备被构成为根据来自压力调节表16的输出控制每个压力调节阀5的打开,将检测器15的检测值与 压力预设值。
    • 9. 发明专利
    • Equipment investment risk estimation method and system, and program therefor
    • 设备投资风险估算方法与系统及其计划
    • JP2004258816A
    • 2004-09-16
    • JP2003046609
    • 2003-02-24
    • Toshiba Corp株式会社東芝
    • UCHIHIRA NAOSHITAKEDA AKIKONAKAMOTO MASASHIMATSUMOTO SHIGERU
    • G06Q10/06G06Q10/00G06Q50/00G06Q50/06G06F17/60
    • PROBLEM TO BE SOLVED: To reasonably and efficiently set various external situations, and to reasonably and efficiently execute decision making of equipment investment while comprehensively considering an estimation result in the various external situations. SOLUTION: Based on user's instructions, each combination of three kinds of elements, i.e., a risk estimation criterion 122, a strategic option 113 and a macro external scenario 111, is set as an 'estimation case(estimation unit)' (S201). A decision tree 121 is produced by use of three kinds of elements, i.e., stochastic uncertain environment 112, and the strategic option 113 and the macro external scenario 111 imparted in the estimation case (S202). The decision tree 121 is estimated on the basis of the risk estimation criterion 122 imparted in the estimation case, and an estimation result 123 is stored (S203). A set of the estimation results 123 obtained by executing the decision tree production and the decision tree estimation in each the estimation case is analyzed, and an analysis result is displayed (S205). COPYRIGHT: (C)2004,JPO&NCIPI
    • 要解决的问题:综合考虑各种外部情况的估计结果,合理有效地设定各种外部情况,合理,有效地执行设备投资决策。 解决方案:根据用户的指示,将三种元素(即风险估计标准122,策略选项113和宏观外部情景111)的每种组合设置为“估计情况(估计单位)”( S201)。 通过使用在估计情况下赋予的三种元素即随机不确定环境112,战略选项113和宏观外部场景111来生成决策树121(S202)。 基于在估计情况下赋予的风险估计基准122来估计决策树121,并且存储估计结果123(S203)。 分析通过在每个估计情况下执行决策树生成和决策树估计获得的一组估计结果123,并且显示分析结果(S205)。 版权所有(C)2004,JPO&NCIPI