US Patent Application 18321545. RESILIENT ESTIMATION FOR GRID SITUATIONAL AWARENESS simplified abstract
Contents
RESILIENT ESTIMATION FOR GRID SITUATIONAL AWARENESS
Organization Name
Inventor(s)
Hema K Achanta of Schenectady NY (US)
Masoud Abbaszadeh of Clifton Park NY (US)
Weizhong Yan of Clifton Park NY (US)
Mustafa Tekin Dokucu of Latham NY (US)
RESILIENT ESTIMATION FOR GRID SITUATIONAL AWARENESS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18321545 titled 'RESILIENT ESTIMATION FOR GRID SITUATIONAL AWARENESS
Simplified Explanation
This patent application describes a system, method, and computer-readable medium for protecting a cyber-physical system using abnormal data generation and resilient estimation.
- The system includes a normal space data source that stores normal monitoring node values over time for each monitoring node in the system.
- A situational awareness module generates abnormal data using values from the normal space data source and a generative model to represent abnormal operation of the system.
- The system also includes a memory for storing program instructions and a situational awareness processor that executes these instructions.
- The processor receives a data signal, which is an aggregation of data signals from multiple monitoring nodes, including real-time data representing the current operation of the system.
- A trained classifier determines whether the received data signal is normal or abnormal based on the generated abnormal data and normal data.
- If the signal is determined to be abnormal, the system localizes the origin of the anomaly.
- The determination and localization are then received by a resilient estimator module.
- The resilient estimator module generates a state estimation for the cyber-physical system based on the received information.
- This system improves the protection of cyber-physical systems by detecting abnormal signals and accurately estimating the system's state.
- The patent application includes numerous other aspects and details related to this innovation.
Original Abstract Submitted
According to some embodiments, a system, method and non-transitory computer-readable medium are provided to protect a cyber-physical system having a plurality of monitoring nodes comprising: a normal space data source storing, for each of the plurality of monitoring nodes, a series of normal monitoring node values over time that represent normal operation of the cyber-physical system; a situational awareness module including an abnormal data generation platform, wherein the abnormal data generation platform is operative to generate abnormal data to represent abnormal operation of the cyber-physical system using values in the normal space data source and a generative model; a memory for storing program instructions; and a situational awareness processor, coupled to the memory, and in communication with the situational awareness module and operative to execute the program instructions to: receive a data signal, wherein the received data signal is an aggregation of data signals received from one or more of the plurality of monitoring nodes, wherein the data signal includes at least one real-time stream of data source signal values that represent a current operation of the cyber-physical system; determine, via a trained classifier, whether the received data signal is a normal signal or an abnormal signal, wherein the trained classifier is trained with the generated abnormal data and normal data; localize an origin of an anomaly when it is determined the received data signal is the abnormal signal; receive the determination and localization at a resilient estimator module; execute the resilient estimator module to generate a state estimation for the cyber-physical system. Numerous other aspects are provided.
