2015/08/31 by Sanaz Khosravani, Iman Naziri Moghaddam, Khosravani, S. +5
Engineering · #Advanced Control Systems Optimization #FOS: Electrical engineering #Fault Detection and Control Systems #Smart Grid Security and Resilience #Systems and Control (eess.SY) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.1509.00091
openalex publication_date 2015/08/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
This paper addresses Fault Tolerant Control (FTC) of Large Power Systems (LPS) subject to sensor failure. Hiding the fault from the controller allows the nominal controller to remain in the loop. We assume specific faults that violate observability of a subsystem, and we cannot rely on these faulty subsystems when estimating states. We use a new method for reconfiguration control of these faults that lead to unobservability of subsystems. The method proposes augmenting a faulty subsystems with another subsystem(s) until a new subsystem is achieved that is observable. Next, finding the best subsystems among available candidates is considered and using structural analysis methods and grammian definition, a complete algorithm is proposed for FTC of LPS. The proposed approach is applied to the IEEE 14-bus test case and interactions are considered in nonlinear form. Simulation results show that the proposed approach works as intended.