Secure Decentralized Event-Triggered Load Frequency Control Design for Multiarea Power Systems Under Multiple DoS...

Area of Science:

• Electrical Engineering
• Control Systems
• Cybersecurity

Background:

• Multiarea power systems face load frequency control challenges.
• Intermittent denial-of-service (DoS) attacks disrupt data transmission, impacting system stability.
• Decentralized control strategies are needed to manage complex power grids.

Purpose of the Study:

• To develop a robust load frequency control strategy for multiarea power systems under DoS attacks.
• To propose a decentralized event-triggering (ET) scheme to minimize data transmission and computational load.
• To ensure the input-to-state stability of the power system despite intermittent attacks.

Main Methods:

• A decentralized event-triggering (ET) scheme combined with periodic sampling.
• Design of a decentralized ET-based controller with parameter tuning.
• Derivation of sufficient conditions for input-to-state stability.
• Optimization using a particle swarm algorithm.

Main Results:

• The proposed ET scheme effectively reduces transmission burden and computational complexity.
• Privacy preservation is achieved through the decentralized control approach.
• The derived conditions guarantee system stability under DoS attacks.
• Simulations on a three-area power system validate the scheme's effectiveness.

Conclusions:

• The decentralized ET-based load frequency control is effective for multiarea power systems under DoS attacks.
• The proposed method enhances system stability, reduces communication overhead, and preserves privacy.
• This approach offers a practical solution for securing modern power grids.