Cooperative Control of TCSC to Relieve the Stress of Cyber-physical Power System

TL;DR

This paper proposes a cooperative control algorithm for TCSC devices to reduce system stress in cyber-physical power systems, ensuring stability and validated through simulations on IEEE 24 Bus Systems.

Contribution

It introduces a novel cooperative control method for TCSC that reduces computational complexity and guarantees convergence, improving system stress management.

Findings

Control algorithm effectively reduces system stress.

Theoretical analysis guarantees convergence.

Simulation results validate approach on IEEE 24 Bus Systems.

Abstract

This paper addresses the cooperative control problem of Thyristor-Controlled Series Compensation (TCSC) to eliminate the stress of cyber-physical power system. The cyber-physical power system is composed of power network, protection and control center and communication network. A cooperative control algorithm of TCSC is developed to adjust the branch impedance and regulate the power flow. To reduce computation burdens, an approximate method is adopted to estimate the Jacobian matrix for the generation of control signals. In addition, a performance index is introduced to quantify the stress level of power system. Theoretical analysis is conducted to guarantee the convergence of performance index when the proposed cooperative control algorithm is implemented. Finally, numerical simulations are carried out to validate the cooperative control approach on IEEE 24 Bus Systems in uncertain environments.