Event-Triggered Consensus Distributed Control Scheme for a Compromised Power Electronics-Dominated Grid

• Published in: 2023 IEEE Energy Conversion Congress and Exposition (ECCE) pp. 726 - 733
• Main Authors: Khan, Ahmad, Hosseinzadehtaher, Mohsen, Shadmand, Mohammad B.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 29.10.2023
• Subjects: Consensus dynamics control; Couplings; Frequency conversion; grid-connected inverter; grid-following inverter; Network topology; Power electronics-dominated grid; Power system stability; Stability analysis; Switches; Topology
• ISSN: 2329-3748
• DOI: 10.1109/ECCE53617.2023.10362507

This article presents an event-triggered consensus dynamics control scheme for multiple grid-following inverters (GFLIs) in a power electronics-dominated grid (PEDG). The main objective is to address the voltage and frequency stability for a network of GFLIs in post stealthy cyberattack scenarios. Particularly, the considered stealthy cyberattack scenario is when the centralized secondary control layer dispatched set-points are compromised. The objective of the proposed event-triggered consensus dynamics control is to regain normal main point of common coupling (PCC) bus voltage and frequency levels in the PEDG. This is accomplished through distributing the reactive and active power among the GFLIs to correct the frequency and the voltage of the network. This consensus dynamics control is validated with five different switch-level simulation scenarios in MATLAB/Simulink. These switch-level simulations demonstrate that the GFLIs are capable to operate independent of the compromised secondary control layer in 100% inverter-based grid with different dynamical coupling and topology.