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Impact of Cyber-Attack on Power System Stability Risk Assessment

	International Journal of Scientific Research and Engineering Development (IJSRED)	Full Text:
	Published Issue : Volume-4 Issue-1
	Year of Publication : 2021
	Unique Identification Number : IJSRED-V4I1P86
	Authors : Ketchiozo Wandji, Ali Aliwi
	: Click Here | DOI : Update Soon

Abstract :

Along with new smart grid technology, many challenges show up on the surface. Among them, cybersecurity is one of the most sophisticated challenges where correlative threats from malicious cyber-attacks on the electric grids continue to grow in frequency at power system cybersecurity technologies developed to protect networks from breaking into phasor measurements unit (PMU). PMU is uniquely designed to monitor and control real-time variable data like the voltage, phase angle, current, active, and reactive power on the wide power grid to continue delivering reliable energy to support economic security. Traditionally, PMU used State Estimation (S.E.) algorithms to consider real-time data from Remote Terminal measured in the power system to improve control and protection. The PMU is deployed through the system based on the topological observability theory using graph theorem analysis. The collected state estimation real-time data would then be transferred to Phasor Data Concentrators (PDC)s systems over Internet Protocol (IP) network infrastructure. Thus, some cybersecurity vulnerabilities existed. Within the context of this paper, the researcher has used a what-if analysis technique to identify threats and hazards. The impact of S.E. cyber-attacks on power system stability is investigated via simulations of different scenarios on the attack of the collected real-time data, to assess the risk on power system stability. A correct selection and consideration of the case study and the results analyzed, collectively yield the desired effect of the research methodology. Besides, this also determines the outcome of the research and helps achieve the research goals and objectives. The Power System Analysis Toolbox (PSAT) in MATLAB environment is used for data analysis and simulation. Finally, this research study describes the research findings and conclusions. It provides practical recommendations that not only aid in a deeper understanding of the research but also aids in further research in the future.