Dynamic, resilient virtual sensing system and shadow controller for cyber-attack neutralization

    公开(公告)号:US11468164B2

    公开(公告)日:2022-10-11

    申请号:US16710051

    申请日:2019-12-11

    Abstract: An industrial asset may have monitoring nodes (e.g., sensor or actuator nodes) that generate current monitoring node values. An abnormality detection and localization computer may receive the series of current monitoring node values and output an indication of at least one abnormal monitoring node that is currently being attacked or experiencing a fault. An actor-critic platform may tune a dynamic, resilient state estimator for a sensor node and output tuning parameters for a controller that improve operation of the industrial asset during the current attack or fault. The actor-critic platform may include, for example, a dynamic, resilient state estimator, an actor model, and a critic model. According to some embodiments, a value function of the critic model is updated for each action of the actor model and each action of the actor model is evaluated by the critic model to update a policy of the actor-critic platform.

    VIRTUAL SENSOR SUPERVISED LEARNING FOR CYBER-ATTACK NEUTRALIZATION

    公开(公告)号:US20210126943A1

    公开(公告)日:2021-04-29

    申请号:US16666807

    申请日:2019-10-29

    Abstract: An industrial asset may have monitoring nodes that generate current monitoring node values. A dynamic, resilient estimator may split a temporal monitoring node space into normal and one or more abnormal subspaces associated with different kinds of attack vectors. According to some embodiments, a neutralization model is constructed and trained for each attack vector using supervised learning and the associated abnormal subspace. In other embodiments, a single model is created using out-of-range values for abnormal monitoring nodes. Responsive to an indication of a particular abnormal monitoring node or nodes, the system may automatically invoke the appropriate neutralization model to determine estimated values of the particular abnormal monitoring node or nodes (e.g., by selecting the correct model or using out-of-range values). The series of current monitoring node values from the abnormal monitoring node or nodes may then be replaced with the estimated values.

    MODEL-BASED CONTROL SYSTEM AND METHOD FOR POWER PRODUCTION MACHINERY
    5.
    发明申请
    MODEL-BASED CONTROL SYSTEM AND METHOD FOR POWER PRODUCTION MACHINERY 审中-公开
    基于模型的控制系统和电力生产机械的方法

    公开(公告)号:US20160365736A1

    公开(公告)日:2016-12-15

    申请号:US14738870

    申请日:2015-06-13

    Abstract: A method includes selecting a first desired parameter of a machinery configured to produce power, a first surrogate parameter related to the desired parameter, and a first model configured to generate the desired parameter based on a first relationship between the first surrogate parameter and the first desired parameter. The method also includes receiving data related to the first surrogate parameter from a plurality of sensors coupled to the machinery and generating the first desired parameter using the data and the first model. Further, the method includes deriving a first set of empirical data relating the first surrogate parameter to the desired parameter and adjusting the first model based on the data, the first surrogate parameter, and the first set of empirical data, wherein the adjustment to the first model occurs in real-time.

    Abstract translation: 一种方法包括选择配置成产生电力的机械的第一所需参数,与期望参数相关的第一替代参数,以及第一模型,其被配置为基于第一代理参数和第一期望参数之间的第一关系产生期望参数 参数。 该方法还包括从耦合到机器的多个传感器接收与第一替代参数有关的数据,并使用数据和第一模型生成第一期望参数。 此外,该方法包括将与第一代理参数相关的第一组经验数据导出到期望参数,并且基于数据,第一替代参数和第一组经验数据来调整第一模型,其中调整到第一 模型发生在实时。

    SYSTEMS AND METHODS FOR CONTROL OF AN ADAPTIVE-CYCLE ENGINE WITH POWER-THERMAL MANAGEMENT SYSTEM
    6.
    发明申请
    SYSTEMS AND METHODS FOR CONTROL OF AN ADAPTIVE-CYCLE ENGINE WITH POWER-THERMAL MANAGEMENT SYSTEM 有权
    具有功率热管理系统的自适应循环发动机控制系统和方法

    公开(公告)号:US20150362923A1

    公开(公告)日:2015-12-17

    申请号:US14305063

    申请日:2014-06-16

    CPC classification number: G05B13/026 G05B15/02 G05D23/1917

    Abstract: A control system for an adaptive-power thermal management system of an aircraft having at least one adaptive cycle gas turbine engine includes a real time optimization solver that utilizes a plurality of models of systems to be controlled, the plurality of models each being defined by algorithms configured to predict changes to each system caused by current changes in input to each system. The real time optimization solver is configured to solve an open-loop optimal control problem on-line at each of a plurality of sampling times, to provide a series of optimal control actions as a solution to the open-loop optimal control problem. The real time optimization solver implements a first control action in a sequence of control actions and at a next sampling time the open-loop optimal control problem is re-posed and re-solved.

    Abstract translation: 用于具有至少一个自适应循环燃气涡轮发动机的飞机的自适应功率热管理系统的控制系统包括利用要控制的多个系统模型的实时优化求解器,所述多个模型各自由算法 配置为预测由每个系统的输入的当前变化引起的每个系统的变化。 实时优化求解器被配置为在多个采样时间中的每一个在线解决开环最优控制问题,以提供作为开环最优控制问题的解决方案的一系列最佳控制动作。 实时优化求解器在控制动作序列中实现第一控制动作,并且在下一个采样时间,重新提出并解决了开环最优控制问题。

    DYNAMIC, RESILIENT SENSING SYSTEM FOR AUTOMATIC CYBER-ATTACK NEUTRALIZATION

    公开(公告)号:US20210120031A1

    公开(公告)日:2021-04-22

    申请号:US16654319

    申请日:2019-10-16

    Abstract: An industrial asset may have monitoring nodes that generate current monitoring node values. An abnormality detection computer may determine that an abnormal monitoring node is currently being attacked or experiencing fault. A dynamic, resilient estimator constructs, using normal monitoring node values, a latent feature space (of lower dimensionality as compared to a temporal space) associated with latent features. The system also constructs, using normal monitoring node values, functions to project values into the latent feature space. Responsive to an indication that a node is currently being attacked or experiencing fault, the system may compute optimal values of the latent features to minimize a reconstruction error of the nodes not currently being attacked or experiencing a fault. The optimal values may then be projected back into the temporal space to provide estimated values and the current monitoring node values from the abnormal monitoring node are replaced with the estimated values.

    Systems and methods for control of an adaptive-cycle engine with power-thermal management system
    9.
    发明授权
    Systems and methods for control of an adaptive-cycle engine with power-thermal management system 有权
    使用电力热管理系统控制自适应循环发动机的系统和方法

    公开(公告)号:US09354621B2

    公开(公告)日:2016-05-31

    申请号:US14305063

    申请日:2014-06-16

    CPC classification number: G05B13/026 G05B15/02 G05D23/1917

    Abstract: A control system for an adaptive-power thermal management system of an aircraft having at least one adaptive cycle gas turbine engine includes a real time optimization solver that utilizes a plurality of models of systems to be controlled, the plurality of models each being defined by algorithms configured to predict changes to each system caused by current changes in input to each system. The real time optimization solver is configured to solve an open-loop optimal control problem on-line at each of a plurality of sampling times, to provide a series of optimal control actions as a solution to the open-loop optimal control problem. The real time optimization solver implements a first control action in a sequence of control actions and at a next sampling time the open-loop optimal control problem is re-posed and re-solved.

    Abstract translation: 用于具有至少一个自适应循环燃气涡轮发动机的飞机的自适应功率热管理系统的控制系统包括利用要控制的多个系统模型的实时优化求解器,所述多个模型各自由算法 配置为预测由每个系统的输入的当前变化引起的每个系统的变化。 实时优化求解器被配置为在多个采样时间中的每一个在线解决开环最优控制问题,以提供作为开环最优控制问题的解决方案的一系列最佳控制动作。 实时优化求解器在控制动作序列中实现第一控制动作,并且在下一个采样时间,重新提出并解决了开环最优控制问题。

    SYSTEM AND METHOD FOR EMISSIONS CONTROL IN GAS TURBINE SYSTEMS
    10.
    发明申请
    SYSTEM AND METHOD FOR EMISSIONS CONTROL IN GAS TURBINE SYSTEMS 有权
    气体涡轮机系统排放控制系统与方法

    公开(公告)号:US20160115839A1

    公开(公告)日:2016-04-28

    申请号:US14526223

    申请日:2014-10-28

    Abstract: A system includes an emissions control system. The emissions control system includes a processor programmed to receive one or more selective catalytic reduction (SCR) operating conditions for an SCR system. The SCR system is included in an aftertreatment system for an exhaust stream. The processor is also programmed to receive one or more gas turbine operating conditions for a gas turbine engine. The gas turbine engine is configured to direct the exhaust stream into the aftertreatment system. The processor is further programmed to derive a NH3 flow to the SCR system based on an SCR model and the one or more SCR operating conditions, to derive a NO/NOx ratio, and to derive a fuel split for the gas turbine engine based on the NH3 flow, the NO/NOx ratio, or a combination thereof.

    Abstract translation: 系统包括排放控制系统。 排放控制系统包括被编程为接收用于SCR系统的一个或多个选择性催化还原(SCR)操作条件的处理器。 SCR系统包括在废气流的后处理系统中。 处理器还被编程为接收用于燃气涡轮发动机的一个或多个燃气轮机操作条件。 燃气涡轮发动机构造成将排气流引导到后处理系统中。 处理器进一步被编程为基于SCR模型和一个或多个SCR操作条件导出到SCR系统的NH 3流,以导出NO / NO x比率,并且基于燃料涡轮发动机导出燃气涡轮发动机的燃料分流 NH 3流量,NO / NO x比率或其组合。

Patent Agency Ranking