Full Text:   <1003>

Summary:  <571>

CLC number: TP202

On-line Access: 2019-12-10

Received: 2018-06-07

Revision Accepted: 2018-11-17

Crosschecked: 2019-11-12

Cited: 0

Clicked: 2671

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Yan-hu Chen

http://orcid.org/0000-0002-5020-7355

De-jun Li

http://orcid.org/0000-0002-9034-4493

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Frontiers of Information Technology & Electronic Engineering  2019 Vol.20 No.11 P.1505-1515

http://doi.org/10.1631/FITEE.1800362


Power system design for constant current subsea observatories


Author(s):  Yan-hu Chen, Sa Xiao, De-jun Li

Affiliation(s):  State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   yanhuchen@zju.edu.cn, sxiao@zju.edu.cn, li_dejun@zju.edu.cn

Key Words:  Observatory, Electric energy conversion, Heat dissipation


Yan-hu Chen, Sa Xiao, De-jun Li. Power system design for constant current subsea observatories[J]. Frontiers of Information Technology & Electronic Engineering, 2019, 20(11): 1505-1515.

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author="Yan-hu Chen, Sa Xiao, De-jun Li",
journal="Frontiers of Information Technology & Electronic Engineering",
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Abstract: 
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.

恒流海底观测网络的电能系统设计

摘要:恒流电能传输因其对短路故障有较高鲁棒性,被认为是海底观测网的理想选择。我们计划在中国东海建造一套恒流海底观测网系统。研究了用于科学实验的恒流海底观测网系统,并深入研究其电源系统及散热系统。恒流电源系统与传统恒压电源系统有很大不同,其电源转换技术具有一定挑战性。在电源转换系统中采用功率补偿电路,消耗多余功率,为用户提供恒定的48V输出。提出一种过压保护以及对接线盒实时监视和控制的电源管理系统。考虑到电能系统工作在水下密封环境中,设计了一种新型接线盒散热结构,延长接线盒使用寿命。仿真和实验结果表明,该系统在长期工作中有较高效率和稳定性。

关键词:海底观测网;电能变换;散热

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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