Electricity Services Based Dependability Model of Power Grid Communication Networking

• Published in: Tsinghua science and technology 2014-04, Vol.19 (2), p.121-132
• Main Author: Jiye Wang Kun Meng Junwei Cao Zhen Chen Lingchao Gao Chuang Lin
• Format: Article
• Language: English
• Subjects: 信息基础设施; 可靠性分析; 可靠性模型; 定性分析方法; 电力服务; 电网; 通信网络; 随机Petri网
• ISSN: 1007-0214; 1878-7606; 1007-0214
• DOI: 10.1109/TST.2014.6787365

The technology of Ultra-High Voltage （UHV） transmission requires higher dependability for electric power grid. Power Grid Communication Networking （PGCN）, the fundamental information infrastructure, severs data transmission including control signal, protection signal, and common data services. Dependability is the necessary requirement to ensure services timely and accurately. Dependability analysis aims to predicate operation status and provide suitable strategies getting rid of the potential dangers. Due to the dependability of PGCN may be affected by external environment, devices quality, implementation strategies, and so on, the scale explosion and the structure complexity make the PGCN＇s dependability much challenging. In this paper, with the observation of interdependency between power grid and PGCN, we propose an electricity services based dependability analysis model of PGCN. The model includes methods of analyzing its dependability and procedures of designing the dependable strategies. We respectively discuss the deterministic analysis method based on matrix analysis and stochastic analysis model based on stochastic Petri nets.