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Journal of Future Internet

March 2019, Volume 3, 1, pp 12-19

Analysis of Cyber Attacks on Load Frequency Control in Smart Grid

Md Musabbir Hossain

,

Fatamatuz Ayasa Khan

Md Musabbir Hossain 1

Fatamatuz Ayasa Khan 2

  1. School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, China. 1

  2. Computer Science and Engineering, Islamic University, Kushtia-Jhenaidah, Bangladesh. 2

Pages: 12-19

DOI: 10.18488/journal.102.2019.31.12.19

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Article History:

Received: 20 August, 2019
Revised: 25 September, 2019
Accepted: 28 October, 2019
Published: 03 December, 2019


Abstract:

Smart Grid has gained tremendous technology momentum over the past few years. The data and cyber security of the smart grid face severe challenges and has gained significant importance. This paper addresses the reliability of smart grid by examining their own importance and the effect of cyber-attack during sudden load changes in frequency disturbing aspects. Moreover, it also introduces a solution approach for stabilizing the system. Using the continuous power flow approach with static var compensator (SVC) and static synchronous compensator (STATCOM), maximum load ability of the load buses is determined. The stable limit of speed control for load frequency control (LFC) and integral controller gain for automatic generation control (AGC) is extracted from their characteristic equations to evaluate the effect of cyber-attack on power systems. Simulations are conducted to demonstrate the frequency variations and oscillations of the power system, depending on the nature of cyber-attack (positive biased or negative biased attack). Finally, to eliminate these oscillations, a feedback LFC block with a three-input shift is proposed.
Contribution/ Originality
Cybersecurity of the modern power system is becoming a major concern throughout the design and implementation of smart grid applications and technology. Therefore, it is essential to study the impact of cyber attacks on the power system. This paper discusses cyberattacks that induce positive and negative biased attacks and their impact on transient stability. Cyber attacks are launched on measured data for a FACTS device (static var compensator - SVC). Therefore, a new procedure of analyzing power system frequency stability under cyber-attack by static var compensator (SVC) and static synchronous compensator (STATCOM).

Keywords:

LFC, Smart grid security, Cyber attack, Smart grid, Power system stability.

Reference:

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[14]        M. Hassan, "Damping performance enhancement of a power system by STATCOM and its frequency stability consideration," Diss. Khulna University of Engineering & Technology (KUET), Khulna, Banglades, 2016.

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Funding:

This study received no specific financial support.

Competing Interests:

The authors declare that they have no competing interests.

Acknowledgement:

Both authors contributed equally to the conception and design of the study.

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