Risk Assessment for the Power Grid Dispatching Process Considering the Impact of Cyber Systems
Power grid dispatching is a high-risk process, and its execution depends on an available cyber system. However, the effects of cyber systems have not caught enough attention in current research on risk assessments in dispatching processes, which may cause optimistic risk results. In order to solve t...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-03-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/12/6/1084 |
| _version_ | 1828346933279719424 |
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| author | Biyun Chen Haoying Chen Yiyi Zhang Junhui Zhao Emad Manlab |
| author_facet | Biyun Chen Haoying Chen Yiyi Zhang Junhui Zhao Emad Manlab |
| author_sort | Biyun Chen |
| collection | DOAJ |
| description | Power grid dispatching is a high-risk process, and its execution depends on an available cyber system. However, the effects of cyber systems have not caught enough attention in current research on risk assessments in dispatching processes, which may cause optimistic risk results. In order to solve this problem, this paper proposes a risk assessment model that considers the impact of a cyber system on power grid dispatching processes. Firstly, a cyber-physical switchgear state model that integrates the reliability states of both cyber system functions and switchgears is proposed, based on the transition of switchgear states in the dispatching process. Then, the potential effects of each operating step on power grid states are analyzed considering the failure model of cyber-physical system (CPS) components. The risk probabilities and consequences of the power grid states are calculated to quantify the risk index. Finally, the workings and effectiveness of this model are illustrated using the IEEE Reliability Test System-1979. |
| first_indexed | 2024-04-14T00:33:00Z |
| format | Article |
| id | doaj.art-5be85c2be9f448989a138d5a84392bf2 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T00:33:00Z |
| publishDate | 2019-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-5be85c2be9f448989a138d5a84392bf22022-12-22T02:22:29ZengMDPI AGEnergies1996-10732019-03-01126108410.3390/en12061084en12061084Risk Assessment for the Power Grid Dispatching Process Considering the Impact of Cyber SystemsBiyun Chen0Haoying Chen1Yiyi Zhang2Junhui Zhao3Emad Manlab4Guangxi Key Laboratory of Power System Optimization and Energy Technology, Guangxi University, Nanning 530004, ChinaGuangxi Key Laboratory of Power System Optimization and Energy Technology, Guangxi University, Nanning 530004, ChinaGuangxi Key Laboratory of Power System Optimization and Energy Technology, Guangxi University, Nanning 530004, ChinaDepartment of Electrical and Computer Engineering Computer Science, University of New Haven, West Haven, CT 06516, USADepartment of Electrical and Computer Engineering Computer Science, University of New Haven, West Haven, CT 06516, USAPower grid dispatching is a high-risk process, and its execution depends on an available cyber system. However, the effects of cyber systems have not caught enough attention in current research on risk assessments in dispatching processes, which may cause optimistic risk results. In order to solve this problem, this paper proposes a risk assessment model that considers the impact of a cyber system on power grid dispatching processes. Firstly, a cyber-physical switchgear state model that integrates the reliability states of both cyber system functions and switchgears is proposed, based on the transition of switchgear states in the dispatching process. Then, the potential effects of each operating step on power grid states are analyzed considering the failure model of cyber-physical system (CPS) components. The risk probabilities and consequences of the power grid states are calculated to quantify the risk index. Finally, the workings and effectiveness of this model are illustrated using the IEEE Reliability Test System-1979.https://www.mdpi.com/1996-1073/12/6/1084risk assessmentpower grid dispatchingcyber-physical systemprobabilistic model |
| spellingShingle | Biyun Chen Haoying Chen Yiyi Zhang Junhui Zhao Emad Manlab Risk Assessment for the Power Grid Dispatching Process Considering the Impact of Cyber Systems Energies risk assessment power grid dispatching cyber-physical system probabilistic model |
| title | Risk Assessment for the Power Grid Dispatching Process Considering the Impact of Cyber Systems |
| title_full | Risk Assessment for the Power Grid Dispatching Process Considering the Impact of Cyber Systems |
| title_fullStr | Risk Assessment for the Power Grid Dispatching Process Considering the Impact of Cyber Systems |
| title_full_unstemmed | Risk Assessment for the Power Grid Dispatching Process Considering the Impact of Cyber Systems |
| title_short | Risk Assessment for the Power Grid Dispatching Process Considering the Impact of Cyber Systems |
| title_sort | risk assessment for the power grid dispatching process considering the impact of cyber systems |
| topic | risk assessment power grid dispatching cyber-physical system probabilistic model |
| url | https://www.mdpi.com/1996-1073/12/6/1084 |
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