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公开(公告)号：US10651645B2
公开(公告)日：2020-05-12
申请号：US15075845
申请日：2016-03-21
Applicant: ABB Inc.
Inventor： Tao Cui , Reynaldo Nuqui , Dmitry Ishchenko , Zhenyuan Wang
Abstract: Systems and methods for fault detection and protection in electric power systems that evaluates electromagnetic transients caused by faults. A fault can be detected using sampled data from a first monitored point in the power system. Detection of fault transients and associated characteristics, including transient direction, can also be extracted through evaluation of sample data from other monitored points in the power system. A monitoring device can evaluate whether to trip a switching device in response to the detection of the fault and based on confirmation of an indication of detection of fault transients at the other monitored points of the power system. The determination of whether to trip or activate the switching device can also be based on other factors, including the timing of receipt of an indication of the detection of the fault transients and/or an evaluation of the characteristics of the detected transients.
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公开(公告)号：US10365676B2
公开(公告)日：2019-07-30
申请号：US14700918
申请日：2015-04-30
Applicant: ABB Inc.
Inventor： Anil Kondabathini , Reynaldo Nuqui , Zhenyuan Wang , Dmitry Ishchenko
Abstract: Methods and systems for secured control of circuit breakers in an electric power substation against undesired direct operation. Consequences of a malicious action are prevented or mitigated using a validation approach that either blocks the command or ensures a negligible effect on system operation. An example method, suitable for implementation in a monitoring device in an electric power substation, includes receiving a command to open or close a circuit breaker. In response, one or more state parameters for the electric power network that comprises the substation are then predicted, the predicted state parameters reflecting an operating state for the network under the assumption that the received command is executed. The method further comprises comparing the predicted one or more state parameters to corresponding operational limits. Execution of the command is then blocked, in response to determining that one or more of the predicted state parameters violate the corresponding operational limits.
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公开(公告)号：US20160320785A1
公开(公告)日：2016-11-03
申请号：US14700918
申请日：2015-04-30
Applicant: ABB Inc.
Inventor： Anil Kondabathini , Reynaldo Nuqui , Zhenyuan Wang , Dmitry Ishchenko
Abstract: Methods and systems for secured control of circuit breakers in an electric power substation against undesired direct operation. Consequences of a malicious action are prevented or mitigated using a validation approach that either blocks the command or ensures a negligible effect on system operation. An example method, suitable for implementation in a monitoring device in an electric power substation, includes receiving a command to open or close a circuit breaker. In response, one or more state parameters for the electric power network that comprises the substation are then predicted, the predicted state parameters reflecting an operating state for the network under the assumption that the received command is executed. The method further comprises comparing the predicted one or more state parameters to corresponding operational limits. Execution of the command is then blocked, in response to determining that one or more of the predicted state parameters violate the corresponding operational limits.
Abstract translation: 电力变电站断路器的安全控制方法和系统，防止不必要的直接操作。 使用验证方法阻止或减轻恶意行为的后果，该验证方法阻止命令或确保对系统操作的影响微乎其微。 一种适用于电力变电站监控装置实施的示例性方法，包括接收断路器的断开或关闭命令。 作为响应，然后预测包括变电站的电力网络的一个或多个状态参数，在假定接收到的命令被执行的情况下，反映网络的操作状态的预测状态参数。 该方法还包括将预测的一个或多个状态参数与相应的操作限制进行比较。 响应于确定一个或多个预测状态参数违反相应的操作限制，则该命令的执行被阻止。
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公开(公告)号：US20160274169A1
公开(公告)日：2016-09-22
申请号：US15075845
申请日：2016-03-21
Applicant: ABB Inc.
Inventor： Tao Cui , Reynaldo Nuqui , Dmitry Ishchenko , Zhenyuan Wang
Abstract: Systems and methods for fault detection and protection in electric power systems that evaluates electromagnetic transients caused by faults. A fault can be detected using sampled data from a first monitored point in the power system. Detection of fault transients and associated characteristics, including transient direction, can also be extracted through evaluation of sample data from other monitored points in the power system. A monitoring device can evaluate whether to trip a switching device in response to the detection of the fault and based on confirmation of an indication of detection of fault transients at the other monitored points of the power system. The determination of whether to trip or activate the switching device can also be based on other factors, including the timing of receipt of an indication of the detection of the fault transients and/or an evaluation of the characteristics of the detected transients.
Abstract translation: 电力系统故障检测和保护的系统和方法，用于评估由故障引起的电磁瞬变。 可以使用来自电力系统中的第一监控点的采样数据来检测故障。 也可以通过评估电力系统中其他监测点的样本数据来提取故障瞬变和相关特性（包括瞬态方向）的检测。 监视装置可以根据对故障的检测来确定是否跳闸交换设备，并且基于在电力系统的其他监控点处的故障瞬变的检测指示的确认。 是否跳闸或激活切换设备的确定还可以基于其他因素，包括接收到故障瞬变检测的指示的时间和/或所检测的瞬变的特性的评估。
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