Reliability Analysis and Optimization of Constant Current Remote Power Feeding System of Seafloor Observatory Network

Abstract

Study on the deterioration of the constant current remote feeding system throughout the life of the structure is always one of the most important issues in seafloor observatory network reliability engineering. Relationship between current-to-current convertor subsystem and amount of loads in branch line is described by introducing failure rate factor. Multistate reliability model of remote power feeding system has been set up and solved by genetic algorithms. Simulation results show that as the load configuration in trunk line and branch line changing, there exists best combination maximizes the system reliability, besides, appropriate increasing amount of loads in branch line can optimize the preventive strategy.

Structure and evolution of the submarine cable network of Chinese mainland

“…At present, research on the submarine cable network focuses mainly on the field of communication engineering, such as the design of submarine cable networks (Audo et al, 2011;Garrett, 2018) and the transmission efficiency of submarine cable networks (Downie, 2018;Tamura and Sakuma, 2018). Based on an understanding of the structure of the submarine cable system and networks, a large number of researchers have begun to view the submarine cable network as a topological network for research purposes, and have raised concerns about its survivability (Cao et al, 2013), reliability (Fan et al, 2014) and vulnerability (Cao, 2012); also the optimization of submarine cable routes has been examined (Msongaleli et al, 2016). These studies usually take advantage of complex network theory and methods to consider changes in the network topology in the event of disasters or deliberate attacks and usually include verification of the changes through simulation.…”