Power system design for constant current subsea observatories

作     者：Yan-hu CHEN Sa XIAO De-jun LI 

作者机构：State Key Laboratory of Fluid Power and Mechatronic SystemsZhejiang UniversityHangzhou 310027China 

基　　金：Project supported by the National Natural Science Foundation of China(No.41676089),the Natural Science Foundation of Zhejiang Province,China(No.LY18E090003) the Fundamental Research Funds for the Central Universities,China(No.2018QNA4005) 

出 版 物：《Frontiers of Information Technology & Electronic Engineering》 (信息与电子工程前沿（英文版）)

年 卷 期：2019年第20卷第11期

页      码：1505-1515页

摘      要：Constant current power transmission is considered a good choice for subsea observatories due to its high resistance to shunt faults. A constant current subsea observatory is planned to be constructed in the East China Sea. We discuss a constant current subsea observatory system used for scientific experiments. The power system and its heat dissipation system are carefully designed. The power conversion method is challenging due to the use of constant current power, which is considerably different from traditional power systems. Thus, we adopt power compensation circuits in the conversion system to obtain a constant 48-V output for science users. A power management system that performs overvoltage protection and real-time monitoring and control of junction box is discussed. An innovative heat dissipation structure of a junction box is designed in consideration of a sealed working environment to extend the useful life of the junction box. Simulations and experiments reveal that the system has high efficiency and stability, especially in long-term applications.

主 题 词：Observatory Electric energy conversion Heat dissipation 

学科分类：0810[工学-土木类] 0808[工学-自动化类] 0809[工学-计算机类] 0839[0839] 08[工学] 0835[0835] 081101[081101] 0811[工学-水利类] 081102[081102] 0812[工学-测绘类] 

核心收录：

D　O　I：10.1631/FITEE.1800362

馆 藏 号：203825862...