Research Projects

• Networked microgrids (NMGs) rely on real-time digital communication for enhanced control and protection. However, widely used protocols (IEC 60870-5-104, DNP3, IEEE C37.94, IEC 61850 GOOSE/Sampled-Values (SV)) transmit data unencrypted and unauthenticated. This vulnerability allows adversaries to execute spoofing, replay, and false-data injection attacks, causing corrupted control set-points, sustained voltage/frequency deviations, and false relay operations. These vulnerabilities distinctly affect three critical communication channels: (1) Wide-area telemetry, which conveys unprotected control data susceptible to spoofing; (2) IEEE C37.94 relay communication, transporting critical 3 ms latency trip/block signals for line-current differential (87L) and pilot distance relays, vulnerable to misoperation from forged/delayed frames; (3) IEC 61850-9-2LE SV streams, transmitting digitized voltage-current samples (less than 1 ms latency), at risk of manipulation causing false trips or masking faults. Failures in these channels rapidly propagate, necessitating a cybersecurity solution addressing Confidentiality, Integrity, Authenticity, and Availability (CIAA) without violating the stringent latency and resource constraints of legacy 16/32-bit IEDs. Conventional cryptography fails these constraints, and existing solutions address partial CIAA needs only. No holistic CIAA cybersecurity framework currently exists for legacy devices across all three channels. This research directly addresses this gap. • Scientific Objectives: The research hypothesis targets full CIAA through unconventional, lightweight, constant-time algorithms aligned explicitly with power-system physics. Objectives include: (1) Developing a CIAA framework securing wide-area telemetry within latency constraints; (2) Arithmetic-only security ensuring CIAA for IEEE C37.94-based 87L relay communications with sub-cycle response; (3) Constant-time masking and authentication securing binary pilot bits in POTT/PUTT/DTT schemes; (4) Lightweight CIAA securing IEC 61850-9-2LE SV streams within sub-millisecond latency. All solutions maintain O(1) computational complexity, ensuring ≤ microsecond processing times with minimal (3-byte) overheads, preserving sub-4 ms GOOSE and sub-millisecond SV deadlines. • Experimental Approach: Prototype algorithms will be developed using Matlab/Python targeting legacy architectures, integrated into electromagnetic-transient (EMT) simulations (PSCAD/Simulink). Experiments will simulate realistic attacks—spoofing, replay, false-data injection, denial-of-service—across all channels. Metrics assessed include latency overhead, detection accuracy, false-alarm rates, control-loop stability impacts, relay operation timings, and computational resources (CPU cycles, memory). Robustness against reverse engineering will be evaluated systematically. • Significance and Impact: The project delivers the first comprehensive, resource-efficient, firmware-deployable cybersecurity framework ensuring full CIAA protection across NMG telemetry, relay protection, and SV streams. Utilities gain an economical solution to retrofit cybersecurity into legacy equipment, significantly improving grid resilience. Outcomes will include high-impact publications, potential patents, and contributions toward secure power-system communication standards.