Interval Secure Event-Triggered Mechanism for Load Frequency Control Active Defense Against DoS Attack
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View abstract on PubMed
Summary
This summary is machine-generated.This study introduces an interval secure event-triggered mechanism (ISETM) for secure load frequency control (LFC) systems, enhancing defense against denial-of-service (DoS) attacks using software-defined networking (SDN). The method ensures secure triggering transmission, improving system performance and security.
Area Of Science
- Control Systems Engineering
- Cybersecurity
- Power Systems
Background
- Denial-of-service (DoS) attacks pose a significant threat to the secure operation of multiarea load frequency control (LFC) systems.
- Existing event-triggered control mechanisms may be vulnerable to cyberattacks, compromising system stability.
- Software-defined networking (SDN) offers a flexible framework for implementing advanced control and security strategies.
Purpose Of The Study
- To propose an active defense strategy against DoS attacks for secure event-triggered control of multiarea LFC systems.
- To introduce a novel interval secure event-triggered mechanism (ISETM) that integrates cybersecurity with event-triggered control.
- To ensure secure and delayed triggering transmission within an SDN framework.
Main Methods
- Development of the ISETM, which generates a triggering instant and a secure triggering interval (STI) using Taylor expansion and model-based prediction.
- Modeling the multiarea LFC system as a delay system under ISETM conditions, incorporating triggering errors.
- Derivation of a performance criterion using the Lyapunov-Krasovskii functional method.
- Application of linear matrix inequality (LMI) techniques for solving ISETM control (ISETC) gains via a codesign approach.
Main Results
- The proposed ISETM effectively integrates event-triggered control with cybersecurity under SDN.
- The STI estimation ensures delayed but secure triggering transmission by programming OpenFlow switches to filter attack traffic.
- The derived performance criterion and LMI-based codesign approach facilitate the achievement of desired LFC system performance.
- Simulations validated the effectiveness and advantages of the proposed active defense strategy.
Conclusions
- The novel ISETM provides a robust solution for secure event-triggered control in multiarea LFC systems facing DoS attacks.
- The integration of SDN and cybersecurity mechanisms within the ISETM enhances system resilience and reliability.
- The proposed method demonstrates significant advantages in ensuring secure and stable operation of power grids.
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