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Article type: Research Article
Authors: Li, Cunbin | Yuan, Jiahang; * | Liu, Ding | Li, Wenle | Lin, Shuaishuai
Affiliations: School of Economics and Management, North China Electric Power University, Beijing, China
Correspondence: [*] Corresponding author. Jiahang Yuan, School of Economics and Management, North China Electric Power University, Beijing 102206, China. E-mail: [email protected].
Abstract: Consumers equipped with standby electric source will become electricity providers at particular moments in the future smart grid. From the perspective of smart grid risk management, this paper concludes the supply risk factors that may lead to the dissatisfaction of consumer demands for security, quality and benefit, which are further classified to supply risk elements. Then the mapping relations between supply risks and consumer demands is established. For the risk assessment problem involving consumer demands and power supply risk, a risk assessment model based on catastrophe theory and 2-tuple linguistic representation is proposed. Firstly, the experts’ linguistic variables are converted to 2-tuples linguistics, and catastrophe theory expands operations from real numbers to linguistic variables. Secondly, combining the expert subjective weights in the form of linguistic, a compromised weighting method based on similarity and deviation is proposed. Subsequently, the ranking results are obtained according to the total catastrophe 2-tuple linguistic value of each supply risk element. The ranking results are helpful for power supply companies to identify important risks and develop risk aversion strategies. At last, the feasibility and effectiveness of the proposed method is proved by contrastive analysis. Therefore, the study could provide reference for future smart grid risk management.
Keywords: Important consumers with standby electric source, supply risk, catastrophe theory, 2-tuple linguistic
DOI: 10.3233/JIFS-162420
Journal: Journal of Intelligent & Fuzzy Systems, vol. 33, no. 4, pp. 2177-2188, 2017
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