Affiliation:
1. Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China
2. State Grid Tianjin Electric Power Company, Tianjin 300010, China
Abstract
A distribution automation system is the integration of physical power distribution systems and information systems. Its information system guarantees the safe operation and reliable power supply of physical systems by monitoring, collecting and transmitting information. In the information system, the remote terminal unit of distribution automation is the hub of the information system, connecting it to the physical power system. Considering the unreliability of terminal information transmission in the information system, this paper aims to build a model to quantitatively evaluate the impact of unreliable transmission information on the power supply reliability of distribution systems. Firstly, the m-segment and n-connection unit model of distribution feeders is established, and then, the power supply reliability indices in the process of handling feeder terminal unit error are analyzed and calculated under the configuration modes of “three-remote” and “two-remote” of remote terminals. Then, considering the impact of a transmission error in the information system, the reliability index calibration model under the condition of unreliable information transmission is established. Finally, a case study is presented to illustrate how the proposed model is implemented.
Funder
Science and Technology Projects of State Grid Corporation of China
Subject
Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction
Reference37 articles.
1. Bassett, D., Clinard, K., Grainger, J., Purucker, S., and Ward, D. (1988). Tutorial Course: Distribution Automation, Institute of Electrical and Electronics Engineers.
2. Wang, H., and Zhong, G. (2018, January 1–4). Research of the self-healing technologies in the optical communication network of distribution automation. Proceedings of the IOP Conference Series Materials Science and Engineering, Shanghai, China.
3. Huang, A.Q., and Baliga, J. (2009, January 14–18). FREEDM System: Role of power electronics and power semiconductors in developing an energy internet. Proceedings of the 2009 21st International Symposium on Power Semiconductor Devices & IC’s, Barcelona, Spain.
4. Reliability modeling and evaluation of active cyber physical distribution system;Liu;IEEE Trans. Power Syst.,2018
5. Analysis of Safe Operation Strategy of Electrical Automation Equipment in Natural Gas Station;Yan;Archit. Eng. Manag.,2021