MUMBAI, India, Feb. 13 -- Intellectual Property India has published a patent application (202521108686 A) filed by Mr. Jagendra Kumar Narang; Dr. Baidyanath Bag; and Miss. Filza Ahsan, Durg, Chattisgarh, on Nov. 10, 2025, for 'cognitive cyber-physical protection system (relayguard) for real-time fsra detection and mitigation in distance relays.'
Inventor(s) include Mr. Jagendra Kumar Narang; Dr. Baidyanath Bag; and Miss. Filza Ahsan.
The application for the patent was published on Feb. 13, under issue no. 07/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a Cognitive Cyber-Physical Protection System (RelayGuard) (1) for distance relay Intelligent Electronic Devices (IEDs) (2) within IEC61850-compliant digital substations, featuring a physics-informed Siamese Neural Network (SNN) for detecting Fully Synchronized Replay Attacks (FSRAs) via similarity estimation with a fault database (6), with secondary detection of False Data Injection Attacks (FDIAs) and Unsynchronized Replay Attacks (USRAs). The system integrates a Physics Fusion Module (13) that dynamically fuses SNN outputs with real-time power system physics and topology checks through an adaptive optimization process for context-aware anomaly scoring, and an Adaptive Response Module (14) employing multi-agent reinforcement learning (MARL) with SHAP-based explainability for proactively learning from threats and orchestrating adaptive countermeasures such as relay setting adjustments or IED isolation, all within a unified design tailored for distance relay protection. This integrated detection-fusion-mitigation methodology ensures seamless cybersecurity, resilience, and proactive defense against evolving attacks, enhancing grid stability and operational efficiency through ultra-low latency deployment on embedded AI accelerators achieving less than 2 milliseconds end-to-end latency."
Disclaimer: Curated by HT Syndication.
