利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.015 秒)

    Reference signal circuit
    3.
    发明授权
    Reference signal circuit 失效
    参考信号电路

    公开(公告)号：US4025762A

    公开(公告)日：1977-05-24

    申请号：US634138

    申请日：1975-11-21

    申请人： Anthony J. Rossi ,  Donald F. Behringer

    发明人： Anthony J. Rossi ,  Donald F. Behringer

    IPC分类号： F01D17/24 ,  F01D21/14 ,  G05B9/02 ,  H02P9/04 ,  H02P23/00 ,  G05B9/03

    CPC分类号： F01D17/24 ,  G05B9/02 ,  H02P23/16

    摘要： In a prime mover control system, control over the prime mover is dependent, in part, upon the validity of a reference signal to the control system. Circuitry is provided between a reference signal generator and the control system whereby under normal conditions the reference signal to the control system is the same as the output of the reference signal generator. However, if the reference signal generator output becomes invalid, then a stored reference signal may be substituted for the reference signal generator output by switching from a first signal channel to an alternate second signal channel, each channel selectably interconnecting the reference signal generator and the control system. The output of the second signal channel is periodically updated to follow, with a time lag, the reference signal generator output except when an invalid reference signal generator output is detected whereupon the update of the second signal channel is frozen at a last valid reference signal which is then input into the control system.

    摘要翻译： 在原动机控制系统中，原动机的控制部分取决于参考信号对控制系统的有效性。 在参考信号发生器和控制系统之间提供电路，由此在正常条件下，控制系统的参考信号与参考信号发生器的输出相同。 然而，如果参考信号发生器输出变得无效，则可以通过从第一信号信道切换到交替的第二信号信道来将存储的参考信号替换为参考信号发生器输出，每个信道可选地将参考信号发生器和控制 系统。 周期性地更新第二信号通道的输出，除了检测到无效的参考信号发生器输出之外，时间间隔跟随参考信号发生器输出，随后第二信号通道的更新被冻结在最后的有效参考信号， 然后输入到控制系统中。

    Turbine control
    4.
    发明授权
    Turbine control 失效
    涡轮机控制

    公开(公告)号：US4270357A

    公开(公告)日：1981-06-02

    申请号：US83345

    申请日：1979-10-10

    申请人： Anthony J. Rossi ,  Donald F. Behringer

    发明人： Anthony J. Rossi ,  Donald F. Behringer

    IPC分类号： F01K7/38 ,  F01D17/24 ,  F01K7/34 ,  F01K13/02

    CPC分类号： F01K7/345 ,  Y02E20/14 ,  Y02P80/15

    摘要： Some power plants may produce both power and process steam as output products and may be referred to as cogeneration power plants. This type of power plant may include at least one extraction type steam turbine in order to conveniently output process steam. Sometimes the available power plant steam supply is insufficient to satisfy both load demand and process steam requirements whereupon it may be desirable to prefer load demand over process steam requirements. The present invention is a control system for electronically implementing that preference.

    摘要翻译： 一些发电厂可以生产电力和过程蒸汽作为输出产品，并且可以被称为热电联产发电厂。 这种类型的发电厂可以包括至少一个提取型蒸汽轮机，以方便地输出加工蒸汽。 有时，可用的发电厂蒸汽供应不足以满足负载需求和过程蒸汽需求，因此可能希望优先于负载需求超过工艺蒸汽需求。 本发明是用于电子地实现该偏好的控制系统。

    Apparatus and method for controlling a multi-turbine installation
    7.
    发明授权
    Apparatus and method for controlling a multi-turbine installation 失效
    用于控制多涡轮机安装的装置和方法

    公开(公告)号：US4412422A

    公开(公告)日：1983-11-01

    申请号：US298272

    申请日：1981-08-31

    申请人： Anthony J. Rossi

    发明人： Anthony J. Rossi

    IPC分类号： F01D17/24 ,  H02P5/46 ,  F01B21/00

    CPC分类号： F01D17/24 ,  H02P5/46

    摘要： The invention is practiced by providing a plurality of turbine-driven systems each producing an output proportional to a respective control signal, means for generating a respective first output signal for each of the turbine-driven systems proportional to a respective first system-output indicating parameter, means for generating a respective error signal for each of the turbine-driven systems proportional to any deviation of a respective second system-output indicating parameter from a respective complementary portion of the combined second system-output parameters of the systems, and means for generating the respective control signal of each of said turbine-driven systems and proportional to any deviations of respective ones of the first output signal and the error signal from a respective predetermined reference value of said first parameter, whereby a predetermined relationship of the individual outputs of the turbine-driven systems is maintained. The invention further comprises a logic controlled switching means effective for determining the number of the turbine-driven systems within the plurality included for sharing combined outputs, electrically connecting each included turbine-driven system to the control apparatus, and electrically isolating each of those turbine-driven systems to be excluded therefrom.

    摘要翻译： 本发明通过提供多个涡轮驱动系统来实现，每个涡轮驱动系统产生与相应控制信号成比例的输出，用于为每个涡轮驱动系统产生与相应的第一系统输出指示参数成比例的相应第一输出信号的装置 ，用于为每个所述涡轮机驱动系统生成与所述系统的组合的第二系统 - 输出参数的相应互补部分的相应的第二系统输出指示参数的任何偏差成比例的相应误差信号的装置，以及用于产生 每个所述涡轮驱动系统的相应控制信号，并且与所述第一参数的相应预定参考值的第一输出信号和所述误差信号中的相应值的偏差成比例，由此所述第一参数的各个输出的预定关系 维持涡轮驱动系统。 本发明还包括有效地用于确定包含的多个涡轮机驱动系统的数量以用于共享组合输出的逻辑控制切换装置，将每个所包括的涡轮驱动系统电连接到控制装置，并且将这些涡轮机驱动系统中的每一个电隔离， 被驱动的系统被排除在外。

    Prime mover speed sensing system and method
    9.
    发明授权
    Prime mover speed sensing system and method 失效
    原动机速度传感系统及方法

    公开(公告)号：US4667114A

    公开(公告)日：1987-05-19

    申请号：US852483

    申请日：1986-04-16

    申请人： Anthony J. Rossi

    发明人： Anthony J. Rossi

    IPC分类号： G01P21/02 ,  H02H7/093 ,  H02P9/04 ,  H02H7/06

    CPC分类号： G01P21/02 ,  H02H7/093

    摘要： A method and apparatus for detecting a failure in the speed sensing system of a rotating shaft prime mover. The control system for the rotating shaft prime mover includes a speed sensing system for measuring the rotational speed of the shaft, a speed feedback system for providing actual rotational speed, and a monitoring system for monitoring the speed sensing system. The monitoring system detects loss of speed signal and overspeed conditions. The speed pickup sensing system includes at least a first, second and third speed sensor. The monitoring system senses with the speed pickup sensors the rotational speed of the shaft to provide signals representative thereof. It selects between the first and second speed signal the signal representative of the actual rotational shaft speed to produce a primary speed signal. The system compares the primary speed signal to the third speed signal for producing a speed feedback fault signal when the primary signal deviates from the third signal by a predetermined value. Each of the speed signals are compared with each other for generating a speed pickup fault signal when any one of the speed signals deviates from another by a predetermined value. The primary signal is compared to a predetermined value for detecting an overspeed condition in the prime mover. An overspeed condition or a primary signal fault indication trips the prime mover. A loss of speed signal causes an indication to be displayed for the operator of the prime mover.

    摘要翻译： 一种用于检测旋转轴原动机的速度检测系统中的故障的方法和装置。 用于旋转轴原动机的控制系统包括用于测量轴的转速的速度感测系统，用于提供实际转速的速度反馈系统以及用于监测速度感测系统的监控系统。 监控系统检测速度信号的丢失和超速情况。 速度拾取感测系统至少包括第一，第二和第三速度传感器。 监测系统利用速度传感器传感器感测轴的旋转速度以提供代表其的信号。 它在第一和第二速度信号之间选择表示实际旋转轴速度的信号以产生主速度信号。 当主信号偏离第三信号预定值时，系统将主速度信号与第三速度信号进行比较，以产生速度反馈故障信号。 当速度信号中的任何一个偏离另一速度预定值时，将每个速度信号彼此进行比较，以产生速度拾取故障信号。 将主信号与用于检测原动机中的超速状况的预定值进行比较。 超速状态或主信号故障指示跳闸原动机。 速度信号的丢失导致原动机的操作者显示指示。

    Prime mover speed control system
    10.
    发明授权
    Prime mover speed control system 失效
    PRIME MOVER速度控制系统

    公开(公告)号：US3986788A

    公开(公告)日：1976-10-19

    申请号：US526906

    申请日：1974-11-25

    申请人： Anthony J. Rossi

    发明人： Anthony J. Rossi

    IPC分类号： G05D13/00 ,  G05D13/62 ,  H02P23/00 ,  F01B25/06

    CPC分类号： H02P23/186

    摘要： A speed control system for a fluid driven prime mover, for example, a turbine wherein the speed of the prime mover is controlled by the positioning of at least one fluid inlet valve. The inlet valve is positioned by a valve operator responsive to an output voltage from the speed control system. The output voltage is directly proportional to the phase difference (error) between a variable reference digital pulse train input representing a desired speed and a feedback digital pulse train input representing the actual prime mover speed. During steady-state operation, prime mover load changes will first cause a phase difference between the reference input and the feedback input whereupon a corrective output voltage is immediately applied to the inlet valve operator prior to the occurrence of an actual speed error. Similarly, desired speed changes are set in the variable reference input resulting in immediate and precise valve operator response since the accompanying change in phase between the new reference input and the last feedback input results in an immediate corrective output voltage.