Abstract:
본 발명은 전압 분배를 이용한 스위치 진단 장치 및 방법에 관한 것으로, 배터리와 부하를 연결하는 음극 전원선 상에 위치하는 스위치의 상태를 진단하기 위하여, 직렬 연결된 하나 이상의 저항을 스위치와 병렬로 연결하고 전압 분배를 이용하여 하나 이상의 저항 중 하나의 저항에 인가되는 전압을 산출함으로써, 산출된 전압에 기반하여 스위치의 상태를 진단할 수 있는 전압 분배를 이용한 스위치 진단 장치 및 방법에 관한 것이다.
Abstract:
Example implementations described herein are directed to detection of historical anomalous events that are similar to currently occurring events in a transmission power system based on phasor management unit (PMU) data to provide information to grid operators with online decision support. From the high-resolution time synchronized PMU data, the historical events can be quickly retrieved and compared to the currently occurring event so that operators can be provided with remedy actions that were attempted in response to the historical events. Utilization of PMU information for such decision support may compliment operation practices relying on supervisory control and data acquisition (SCADA) measurements by allowing a much fast response to the currently occurring event. Accurate identification of similar, historical events can advise grid operators of the cause of disturbances and provide ideas for response. Implementations of the proposed technology may improve the resilience and reliability of the transmission power systems.
Abstract:
Described herein are methods and systems for remote sensing to derive a calibrated power measurement for a power distribution point. Magnetic field sensors of a sensor module sense a magnetic field emitted by the power distribution point. A first processor generates an uncalibrated power measurement for each magnetic field sensor, the uncalibrated power measurement derived from the magnetic field sensed by the magnetic field sensor and a voltage carried by the power distribution point. A second processor determines a response of each magnetic field sensor to a known power load being drawn through the power distribution point. The second processor derives a transfer function using the response of each magnetic field sensor to the known power load. The second processor applies the transfer function to the uncalibrated power measurement for each magnetic field sensor to generate the calibrated power measurement for the power distribution point.