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    • 1. 发明申请
    • ADAPTIVE CONTROL FOR A GAS TURBINE ENGINE
    • 气体涡轮发动机的自适应控制
    • US20120060505A1
    • 2012-03-15
    • US12881846
    • 2010-09-14
    • James W. FullerRamesh Rajagopalan
    • James W. FullerRamesh Rajagopalan
    • F02C9/00
    • G05B13/00G05B13/048
    • A method for controlling a gas turbine engine includes: generating model parameter data as a function of prediction error data, which model parameter data includes at least one model parameter that accounts for off-nominal operation of the engine; at least partially compensating an on-board model for the prediction error data using the model parameter data; generating model term data using the on-board model, wherein the on-board model includes at least one model term that accounts for the off-nominal operation of the engine; respectively updating one or more model parameters and one or more model terms of a model-based control algorithm with the model parameter data and model term data; and generating one or more effector signals using the model-based control algorithm.
    • 一种用于控制燃气涡轮发动机的方法,包括:产生作为预测误差数据的函数的模型参数数据,该模型参数数据包括考虑到发动机的非标称运行的至少一个模型参数; 使用所述模型参数数据至少部分地补偿所述预测误差数据的车载模型; 使用所述车载模型生成模型项数据,其中所述车载模型包括考虑所述发动机的非标称操作的至少一个模型项; 分别使用模型参数数据和模型项数据更新基于模型的控制算法的一个或多个模型参数和一个或多个模型项; 以及使用基于模型的控制算法产生一个或多个效应信号。
    • 4. 发明授权
    • Increased bandwidth for plants with resonant modes using nonlinear notch
filters
    • 使用非线性陷波滤波器增加具有谐振模式的工厂的带宽
    • US5929700A
    • 1999-07-27
    • US669729
    • 1996-06-26
    • James W. FullerCarl N. Nett
    • James W. FullerCarl N. Nett
    • G05B11/36G05B5/01H03H11/04H03B1/04
    • G05B5/01
    • A control system includes a plant 56 having resonant modes and a controller 5 which receives plant input signals on lines 14,24 from the plant 56 and provides a controller output signal I, related to a filter output signal V, which controls the plant 6. The controller is provided with a non-linear notch filter 30 which receives a filter input signal x related to the plant input signals and provides the filter output signal V. The notch filter has at least one notch frequency near one of the resonant modes so as to attenuate one of the modes by a predetermined amount and has a phase lag a decade below the lowest notch frequency of said notch filter which is less than that of a corresponding linear notch filter, thereby allowing the control system 7 to exhibit faster time response and increased bandwidth than a system employing linear notch filters.
    • 控制系统包括具有谐振模式的设备56和从设备56接收线路14,24上的设备输入信号的控制器5,并且提供与控制设备6的滤波器输出信号V相关的控制器输出信号I. 控制器设置有非线性陷波滤波器30,其接收与工厂输入信号相关的滤波器输入信号x并提供滤波器输出信号V.陷波滤波器在谐振模式之一附近具有至少一个陷波频率,因此 将模式中的一个衰减预定量并且具有低于所述陷波滤波器的最低陷波频率十倍的相位滞后,该相位滞后小于对应的线性陷波滤波器的最小陷波频率,从而允许控制系统7展现更快的时间响应, 增加的带宽比采用线性陷波滤波器的系统。
    • 5. 发明授权
    • Reduced phase-shift nonlinear filters
    • 减少相移非线性滤波器
    • US5694077A
    • 1997-12-02
    • US673634
    • 1996-06-26
    • James W. Fuller
    • James W. Fuller
    • H03H11/04H03H7/01H03K5/00
    • H03H7/0107
    • A reduced phase-shift nonlinear filter includes linear filter logic 10 responsive to a filter input signal x and having a linear transfer function G(s), which provides a linear filtered signal g, zero-cross sample-and-hold logic 16 responsive to the filter input signal x and the linear filtered signal g, which provides a square wave signal n which crosses zero at the same time and in the same direction as the filter input signal x and has an amplitude proportional to the value of the linear filtered signal g at that time, complementary filter logic 20 responsive to said square wave signal n and having a complementary transfer function (1-G(s)) which provides a complementary filtered signal c, and a summer 30 which adds the complementary filtered signal and the linear filtered signal to provide a filter output signal y which exhibits less phase shift over certain frequency bands than that of the linear transfer function. If the linear transfer function has numerator and denominator polynomials of the same order, the complementary transfer function (1-G(s)) 20 may be a reduced-order transfer function.
    • 减少的相移非线性滤波器包括响应于滤波器输入信号x并具有线性传递函数G(s)的线性滤波器逻辑10,线性滤波器逻辑提供线性滤波信号g,零交叉采样保持逻辑16响应于 滤波器输入信号x和线性滤波信号g,其提供方波信号n,其与滤波器输入信号x同时并且在相同的方向上与零相交,并具有与线性滤波信号的值成比例的幅度 此时,互补滤波器逻辑20响应于所述方波信号n并具有提供互补滤波信号c的互补传递函数(1-G(s)),以及加法器30,其将互补滤波信号和 线性滤波信号以提供滤波器输出信号y,其在某些频带上表现出比线性传递函数的相移更少的相移。 如果线性传递函数具有相同阶数的分子和分母多项式,则互补传递函数(1-G(s))20可以是降序传递函数。
    • 9. 发明授权
    • Model predictive controller with life extending control
    • 具有寿命延长控制的模型预测控制器
    • US07203554B2
    • 2007-04-10
    • US10801235
    • 2004-03-16
    • James W. Fuller
    • James W. Fuller
    • G05B13/02G06F19/00
    • G05B13/048
    • An MPC Control system provides a life extending control that includes life-extending goals in the performance index of the MPC controller and limits in the inequality equations. The MPC controller performs the normal functions of a control system for a physical system, but does so in a manner that extends the life or time-to-next maintenance or reduces the number of parts that need to be replaced. If the life extending functions do not degrade other control functions, they can be always enabled, making the system less expensive to maintain. If the life extending functions degrade some other control functions, they can be adjusted in-the-field or on-the-fly to stretch the time-until-maintenance until it is more convenient, but with some impact on performance.
    • MPC控制系统提供寿命延长控制,包括MPC控制器的性能指标中的寿命延长目标和不等式方程中的限制。 MPC控制器执行物理系统的控制系统的正常功能,但是以延长使用寿命或时间到下一个维护或减少需要更换的部件的数量的方式执行。 如果寿命延长功能不会降低其他控制功能,则可以始终启用它们,从而使系统维护成本更低。 如果寿命延长功能降低了其他一些控制功能,则可以在现场或即时调整,以延长维护时间,直到更方便,但对性能有一定的影响。
    • 10. 发明授权
    • Square root method for computationally efficient model predictive control
    • 用于计算高效模型预测控制的平方法
    • US07197485B2
    • 2007-03-27
    • US10620569
    • 2003-07-16
    • James W. Fuller
    • James W. Fuller
    • G06F15/18
    • G06F17/16G05B13/048
    • An efficient method for solving a model predictive control problem is described. A large sparse matrix equation is formed based upon the model predictive control problem. The square root of H, Hr, is then formed directly, without first forming H. A square root (LSMroot) of a large sparse matrix of the large sparse matrix equation is then formed using Hr in each of a plurality of iterations of a quadratic programming solver, without first forming the large sparse matrix and without recalculating Hr in each of the plurality of iterations. The solution of the large sparse matrix equation is completed based upon LSMroot.
    • 描述了一种解决模型预测控制问题的有效方法。 基于模型预测控制问题形成了一个较大的稀疏矩阵方程。 然后直接形成H,Hr的平方根,而不首先形成H.然后,使用Hr在二次方程的多次迭代中的每一个中形成大稀疏矩阵方程的大稀疏矩阵的平方根(LSMroot) 编程求解器,而不首先形成大的稀疏矩阵,并且在多个迭代中的每一个中不重新计算Hr。 基于LSMroot完成了大稀疏矩阵方程的求解。