Abstract
The electric power system plays an important role in sensor networks. In the marine seismic exploration streamer system (MSESS), an underwater power system transmits high-voltage direct current to all nodes in the streamer through a daisy chain structure. As offshore oil exploration develops toward deep water, it is necessary to study long streamers with large-scale sensor networks for deep water exploration. When the length of a streamer is increased to a certain value, the output current of the power supply increases sharply. This results in the activation of the overcurrent protection and the power supply shuts down. This paper puts forward an accurate model for an underwater power system applied to MSESS. Using the Newton iteration algorithm and a reverse algorithm, equations established by the model are solved and laboratory test results are used to verify the accuracy of the model. Based on simulation and analysis of the model, we explain why the power system crashes when the streamer is too long. Software that can quickly calculate the maximum number of nodes (the maximum length with which the system works normally) is developed and it is significant for the design of MSESS. The method of research could also be applied to relevant work such as large-scale sensor networks with daisy-chaining power supply in land seismic exploration.
Highlights
In recent years, new oil and gas resources have come mainly from the sea, from deep water and ultra-deep water areas [1,2,3,4]
Since the efficiency of the Direct current (DC)–DC converter varies as input voltage changes and the power consumption of data acquisition station (DAS) remains at a constant value, single-node power consumption pn is a function of
Non-linear are established established for for the the model, which are solved by the Newton iteration algorithm and reverse algorithm
Summary
New oil and gas resources have come mainly from the sea, from deep water and ultra-deep water areas [1,2,3,4]. For the effective exploration and development of oil and gas in deep water environments, it is necessary to study long streamers. The increase in streamer length makes it difficult to provide the data acquisition station (DAS) with an effective power supply. Sensors 2020, 20, 28; doi:10.3390/s20010028 www.mdpi.com/journal/sensors we design a power dissipation model with line loss for marine seismic exploration sensor networks. Based on the study of the model, the reason why the marine seismic exploration streamer system (MSESS) can only support a finite. Direct current (DC)-to-DC converters transform high voltage to low voltage, which powers the acquisition station [16,17] In actual operation, these kinds of power system normally work in mesoscale sensor networks. When one more node is added, the output current of the power supply on the geophysical survey vessel increases sharply.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
