公开(公告)号：US20100039150A1

公开(公告)日：2010-02-18

申请号：US12192571

申请日：2008-08-15

申请人： Malede W. Berhanu ,  Christopher D. Hanudel ,  Mark W. Kuemerle ,  David W. Milton ,  Clarence R. Ogilvie ,  Jack R. Smith

发明人： Malede W. Berhanu ,  Christopher D. Hanudel ,  Mark W. Kuemerle ,  David W. Milton ,  Clarence R. Ogilvie ,  Jack R. Smith

IPC分类号： H03L7/00

CPC分类号： H03L7/0814 ,  H04L7/0012 ,  H04L7/0037

摘要： A method for source synchronous communication. The method includes dynamically adjusting a delay that is applied to a data signal and a remote clock signal until a delayed remote clock signal is synchronized with a local clock signal, and capturing data from a delayed data signal associated with the delay in a local domain.

摘要翻译： 一种源同步通信方法。 该方法包括动态地调整应用于数据信号和远程时钟信号的延迟，直到延迟的远程时钟信号与本地时钟信号同步，并且从与本地域中的延迟相关联的延迟数据信号中捕获数据。

公开(公告)号：US5037339A

公开(公告)日：1991-08-06

申请号：US513444

申请日：1990-04-23

申请人： Jack R. Smith

发明人： Jack R. Smith

IPC分类号： B63H16/10

CPC分类号： B63H16/102

摘要： A forward facing rowing mechanism (10) for a boat (11) having a bow (12), a longitudinal axis (A.sub.1) and both port and starboard gunwales (21). A mounting bracket (20) is adapted to be supported from each gunwale (21), and a tilting frame (25) is supported from the mounting bracket (20) for pivotal movement about an axis (A.sub.2) substantially parallel to the longitudinal axis (A.sub.1) of the boat (11). A drive sub-assembly (31.sub.x) is carried on the tilting frame (25) to be pivotal about a first angular rotational axis (A.sub.3). A driven sub-assembly (31.sub.y) is carried on the tilting frame (25) to be pivotal about a second angular rotational axis (A.sub.4). A handle (14) is secured to the drive sub-assembly (31.sub.x) for rotation about a first feathering axis (A.sub.5). A blade (18) is secured to the driven sub-assembly (31.sub.y) for rotation about a second feathering axis (A.sub.6). A first drive (83 and 84) interconnects the drive and driven sub-assemblies (31.sub.x and 31.sub.y) so that rotation of the drive sub-assembly (31.sub.x) about the first angular rotational axis (A.sub.3) effects rotation of the driven sub-assembly (31.sub.y) about the second angular rotational axis (A.sub.4). A second drive (78 and 79) interconnects the handle and blade (14 and 18) so that rotation of said handle (14) about the first feathering axis (A.sub.5) effects concomitant rotation of the blade (18) about the second feathering axis (A.sub.6).

摘要翻译： 一种用于具有弓形件（12），纵向轴线（A1）以及两个端口和右舷舷窗（21）的船（11）的前向划船机构（10）。 安装支架（20）适于从每个舷窗（21）支撑，并且倾斜框架（25）从安装支架（20）支撑，用于围绕基本上平行于纵向轴线的轴线（A2）枢转运动 A1）（11）。 驱动子组件（31x）承载在倾斜框架（25）上以围绕第一角度旋转轴线（A3）枢转。 驱动子组件（31y）承载在倾斜框架（25）上以围绕第二角度旋转轴线（A4）枢转。 手柄（14）固定到驱动子组件（31x）上以围绕第一羽化轴线（A5）旋转。 刀片（18）被固定到被驱动的子组件（31y）上以围绕第二羽化轴线（A6）旋转。 第一驱动器（83和84）将驱动和从动子组件（31x和31y）互连，使得驱动子组件（31x）围绕第一角度旋转轴线（A3）的旋转实现驱动子组件 （31y）围绕第二角度旋转轴线（A4）。 第二驱动器（78和79）将手柄和刀片（14和18）互连，使得所述手柄（14）围绕第一羽化轴线（A5）的旋转实现叶片（18）围绕第二羽化轴线（...）的伴随旋转 A6）。

公开(公告)号：US4445180A

公开(公告)日：1984-04-24

申请号：US413291

申请日：1973-11-06

申请人： Guy E. Davis ,  Jack R. Smith

发明人： Guy E. Davis ,  Jack R. Smith

IPC分类号： F22B35/00 ,  F01D17/24 ,  F01K13/02 ,  F22B35/18 ,  F22B37/38 ,  G06F15/46 ,  F01D17/02 ,  G05B15/00

CPC分类号： G06K13/0825 ,  F01D17/24 ,  F01K13/02 ,  F22B35/18

摘要： An electric power plant, including a fossil fired boiler and a steam turbine, is operated by a control system including a plant unit master. The control system includes a boiler control for determining the inputs of fuel, air and water, and a turbine control for determining the position of the throttle valves introducing steam from the boiler to the turbine. The plant unit master provides a load demand reference in parallel to the boiler control and to the turbine control, whereby the turbine and the boiler are operated in a coordinated manner. Measuring means provide indications of throttle pressure, power generated by the system and turbine rotor speed. Distinct controllers, each including a controller and responsive to one of the aforementioned indications and its corresponding reference, modify the load demand reference before it is applied to the turbine control or to the boiler control. The above-described control system including the plant unit master, boiler control and turbine control is implemented by a single digital computer.

摘要翻译： 包括化石燃烧锅炉和蒸汽轮机在内的发电厂由包括厂房单元主站的控制系统运行。 控制系统包括用于确定燃料，空气和水的输入的锅炉控制，以及用于确定将蒸汽从锅炉引导到涡轮的节流阀的位置的涡轮机控制。 设备单元主站与锅炉控制和涡轮机控制并行地提供负载需求参考，由此涡轮机和锅炉以协调的方式操作。 测量装置提供节气门压力，由系统产生的功率和涡轮转子速度的指示。 每个控制器包括控制器并且响应上述指示之一及其对应的参考，在负载需求参考应用于涡轮机控制或锅炉控制之前修改负载需求参考。 上述包括工厂单元主机，锅炉控制和涡轮机控制的控制系统由单个数字计算机实现。

公开(公告)号：US4201923A

公开(公告)日：1980-05-06

申请号：US495730

申请日：1974-08-08

申请人： Terry J. Reed ,  Jack R. Smith

发明人： Terry J. Reed ,  Jack R. Smith

IPC分类号： F01K23/10 ,  F02C9/26 ,  F02C9/56 ,  H02P9/04

CPC分类号： F02C9/26 ,  F01K23/105 ,  F05D2200/11 ,  Y02E20/16

摘要： A combined cycle electric power plant includes gas and steam turbines and steam generators and a digital/analog control system. A gas turbine megawatt load control system is included in the control and it includes a feedforward load control which generates a fuel reference equal to the sum of a megawatt load demand and an idle speed fuel demand. The megawatt load control also includes a feedback load trimmer which provides minor corrective action on the operation of the feedforward load control. Gas turbine and combined cycle plant operation results in the generation of megawatts equal to an input demand value.

摘要翻译： 联合循环发电厂包括燃气和蒸汽涡轮机和蒸汽发生器以及数字/模拟控制系统。 燃气涡轮机兆瓦负载控制系统包括在控制中，并且其包括前馈负载控制，其产生等于兆瓦负载需求和怠速燃料需求之和的燃料基准。 兆瓦负载控制还包括反馈负载微调器，其对前馈负载控制的操作提供了小的校正动作。 燃气轮机和联合循环设备运行导致产生等于输入需求值的兆瓦。

公开(公告)号：US4195231A

公开(公告)日：1980-03-25

申请号：US495726

申请日：1974-08-08

申请人： Terry J. Reed ,  Jack R. Smith ,  Roy W. Kiscaden

发明人： Terry J. Reed ,  Jack R. Smith ,  Roy W. Kiscaden

IPC分类号： F01K23/10 ,  F02C9/28 ,  F02C9/56 ,  H02P9/04

CPC分类号： F02C9/28 ,  F01K23/105 ,  F05D2270/021 ,  F05D2270/101 ,  Y02E20/16

摘要： A digital computer system provides automatic control for a steam turbine and two gas turbines in a combined cycle electric power plant during startup and load modes of operation. The gas turbine automatic control system provides speed, load and blade path temperature control functions in developing an output fuel control signal for application to each gas turbine fuel valve control. An analog control for each gas turbine selectively provides startup and temperature and load control functions as a backup for the automatic gas turbine control, and further provides gas turbine overspeed, surge and other limit controls continuously. An operator panel functions with the analog and digital controls to provide an operator interface with the plant, and an interface circuit ties the digital and analog controls together for bumpless transfer between manual and automatic modes of operation. A sequencer is provided for each gas turbine and it provides gas turbine startup sequence control, gas turbine trip protection and other functions in both the automatic and the backup modes of operation. A gas turbine monitor develops temperature and vibration signals for the sequencer and the fuel controls.

摘要翻译： 数字计算机系统在启动和负载运行模式期间为联合循环发电厂中的蒸汽轮机和两个燃气轮机提供自动控制。 燃气轮机自动控制系统提供速度，负载和叶片路径温度控制功能，用于开发输出燃料控制信号，以应用于每个燃气轮机燃油阀控制。 每个燃气轮机的模拟控制选择性地提供启动和温度和负载控制功能，作为自动燃气轮机控制的备份，并进一步提供燃气涡轮超速，喘振和其他极限控制。 操作面板具有模拟和数字控制功能，可与工厂提供操作员界面，并且接口电路将数字和模拟控制连接在一起，在手动和自动操作模式之间进行无扰动传输。 为每个燃气轮机提供了一个定序器，并且在自动和备用操作模式下提供燃气轮机启动顺序控制，燃气轮机跳闸保护和其他功能。 燃气轮机监控器为定序器和燃料控制器提供温度和振动信号。

公开(公告)号：US4167096A

公开(公告)日：1979-09-11

申请号：US495739

申请日：1974-08-08

申请人： Jack R. Smith ,  Terry J. Reed

发明人： Jack R. Smith ,  Terry J. Reed

IPC分类号： F01K23/10 ,  H02P23/00 ,  F02C9/04

CPC分类号： F01K23/105 ,  H02P23/16 ,  F05B2270/1011 ,  Y02E20/16

摘要： A combined cycle electric power plant includes gas and steam turbines and steam generators and a digital/analog control system. In the automatic and manual modes of operation, the control system develops a fuel reference signal for the throttle valve position control by means of a speed/load control which functions on a feedforward speed control basis without speed feedback correction. An electrical overspeed protection control is directly coupled to the throttle valve position control to limit turbine speed to a first reference value when the breaker is closed and to limit turbine speed to a lower reference value when the breaker is open. Electrical and mechanical overspeed protection systems directly trip the turbine at higher speed references.

公开(公告)号：US4029952A

公开(公告)日：1977-06-14

申请号：US413275

申请日：1973-11-06

申请人： Theodore C. Giras ,  William E. Mendez, Jr. ,  Jack R. Smith

发明人： Theodore C. Giras ,  William E. Mendez, Jr. ,  Jack R. Smith

IPC分类号： F01D17/24 ,  F01K7/24 ,  G06F11/20 ,  F01D17/02 ,  G05B15/00 ,  G06F15/06

CPC分类号： G06F11/2038 ,  F01K7/24 ,  G06F11/2097 ,  G06F11/2023

摘要： The electric power plant including a steam generator and a steam turbine is operated by a control system including two redundant digital computers. Switching circuitry is provided for coupling one of the computers through interface equipment to the steam generator and the turbine and a generator according to programmed computer control. A data link is established between the computers to transfer manual/automatic status and other needed data from the control computer to the standby computer. A system is provided for detecting when certain hardware and software malfunctions have occurred and for responsively transferring control to the standby computer. The standby computer is tracked to the control computer so that control computer transfer can be made reliably without disturbing the electric power generation process.

摘要翻译： 包括蒸汽发生器和蒸汽轮机的发电厂由包括两个冗余数字计算机的控制系统操作。 提供开关电路，用于通过接口设备将计算机之一耦合到蒸汽发生器和涡轮机，以及根据编程的计算机控制将发电机耦合。 在计算机之间建立数据链接，以将手动/自动状态和其他所需数据从控制计算机传输到备用计算机。 提供一种用于检测何时发生某些硬件和软件故障以及响应地将控制传送到备用计算机的系统。 备用计算机被跟踪到控制计算机，使得可以可靠地进行控制计算机传送而不干扰发电过程。

公开(公告)号：US4016717A

公开(公告)日：1977-04-12

申请号：US551202

申请日：1975-02-19

申请人： Jack R. Smith ,  Leonard H. Burrows

发明人： Jack R. Smith ,  Leonard H. Burrows

IPC分类号： F02C9/32 ,  F02C9/08

CPC分类号： F02C9/32

摘要： In a primary or backup control system for operating a gas turbine, a blade path temperature limit signal is generated which acts as a check on a fuel scheduling signal to the turbine which might otherwise cause excursion of the blade path temperature beyond prescribed limits. The means for generating the blade path temperature limit signal is adapted however so that a preliminary error signal is conditioned to behave in one manner in response to a condition of increasing temperature and in another manner to a condition of decreasing temperature.This two-way response is achieved by utilizing a plurality of proportional signal limiters, each one of which is matched to or tuned in accordance with the characteristics of the gas turbine. Further, the response duality is automatic and subject to the particular condition of temperature change which obtains.In addition, means are provided for generating a temperature limit signal which is clamped to a fixed, predetermined percentage of the fuel scheduling signal. This signal is employed, under appropriate conditions, in place of the conditioned error signal to insure that the conditioned error signal does not otherwise set the fuel scheduling signal at less than the fixed percentage above its 100% value. Acting in concert, the means for conditioning the preliminary error signal and the means for generating the clamped temperature signal yield increased turbine protection, greater operating stability and more rapid control response where permissible.

摘要翻译： 在用于操作燃气轮机的主要或备用控制系统中，产生叶片路径温度限制信号，其作为对涡轮机的燃料调度信号的检查，否则可能导致叶片路径温度超出规定限度。 然而，用于产生叶片路径温度限制信号的装置被适配，使得初始误差信号被调节为响应于温度升高的条件并且以另一种方式响应于温度降低的条件而以一种方式表现。

公开(公告)号：US3973391A

公开(公告)日：1976-08-10

申请号：US495727

申请日：1974-08-08

申请人： Terry J. Reed ,  Jack R. Smith

发明人： Terry J. Reed ,  Jack R. Smith

IPC分类号： F01K23/10 ,  F02C9/20 ,  F02C9/14

CPC分类号： F01K23/105 ,  F02C9/20 ,  Y02E20/16

摘要： A combined cycle electric power generating plant, which includes gas and steam turbines, inlet guide vane positioning means for the gas turbines, steam generators, afterburners and a digital/analog control system, is provided with inlet guide vane control apparatus adapted to modulate the position of the inlet guide vanes as a function of load or inlet blade path temperature. The inlet guide vane control apparatus is further adapted to operate in either an automatic or manual mode with additional provision for bumpless transfer therebetween incorporated in the control apparatus.

摘要翻译： 一种组合循环发电厂，其包括燃气和蒸汽轮机，用于燃气轮机的入口导叶定位装置，蒸汽发生器，后燃烧器和数字/模拟控制系统，具有入口导叶控制装置，其适于调节位置 作为载荷或入口叶片路径温度的函数。 入口引导叶片控制装置还适于以自动或手动模式操作，其中包括在控制装置中的无扰动传递。

公开(公告)号：US3943372A

公开(公告)日：1976-03-09

申请号：US495700

申请日：1974-08-08

申请人： Jack R. Smith ,  Terry J. Reed

发明人： Jack R. Smith ,  Terry J. Reed

IPC分类号： F01D19/00 ,  F01K13/02 ,  F01K23/10 ,  F01D17/02 ,  G05B15/00 ,  G06F15/06

CPC分类号： F01D19/00 ,  F01K13/02 ,  F01K23/105 ,  Y02E20/16

摘要： A combined cycle electric power plant includes gas and steam turbines and steam generators and a digital/analog control system. The control system includes an automatic control and a backup control which are interfaced to operate the gas turbine throttle valve for speed and load control purposes and to provide for manual/auto transfers. The backup control includes a startup control which functions on the basis of a feedforward fuel schedule ramp function. Between ignition speed and 78% synchronous speed, the ramp function is a linear function of fuel demand versus speed with a predetermined slope. From 78% of synchronous speed to idle speed, the ramp function is a linear function with a lesser slope.

摘要翻译： 联合循环发电厂包括燃气和蒸汽涡轮机和蒸汽发生器以及数字/模拟控制系统。 控制系统包括自动控制和备用控制，其接口以操作用于速度和负载控制目的的燃气涡轮节气门并提供手动/自动转移。 备用控制包括基于前馈燃料调度斜坡功能起作用的启动控制。 在点火速度和78％同步速度之间，斜坡功能是具有预定斜率的燃料需求与速度的线性函数。 从同步速度的78％到怠速，斜坡功能是斜率较小的线性函数。