水下恒流分支单元可靠性建模与分析  

Reliability modeling and analysis of underwater constant current branching unit

作　　者：樊诚[1] 周学军[1] 王希晨[1] FAN Cheng;ZHOU Xue-jun;WANG Xi-chen(College of Electronic Engineering, Naval Univ. of Engineering, Wuhan 430033, China)

机构地区：[1]海军工程大学电子工程学院,武汉430033

出　　处：《海军工程大学学报》2021年第4期71-75,100,共6页Journal of Naval University of Engineering

基　　金：国家部委基金资助项目(3020201020402)。

摘　　要：采用恒流供电的缆系水下网络借助恒流分支技术可以构建网格型供电拓扑,实现了水下供电范围的拓展,但与恒压供电相比,需要在水下分支节点中增加恒流分支单元。围绕恒流分支单元的可靠性分析问题,利用事件空间法建立了其可靠性解析模型;为了解决因恒流分支单元中串联的冷备份恒流分支模块数量过多而难以得出解析表达式的问题,给出了恒流分支单元可靠性的仿真分析算法。算例分析表明:所给的仿真分析算法与解析模型高度一致,验证了该算法的可行性;采取备份保护方式可以较好地提升恒流分支单元的可靠性。该研究结果可以提供一种满足系统可靠性需求的恒流供电回路节点铺设的设计方案。The cabled underwater network with constant current power supply can construct grid power topology with the help of constant current branching technique,and thus realizing the extension of underwater power supply.But in comparison with the constant voltage supply,constant current branch unit need to be added into underwater branching node.As for the reliability analysis of constant current branching unit,an analysis model was established by using the event space method.And in order to solve the problem that too many cold backup constant current branching modules in series in constant current branching unit will cause difficulty in getting the analytic expression,an analysis simulation algorithm for constant current branching unit reliability was presented.The example analysis shows that the algorithm is highly consistent with the analytical model,and thus its feasibility is verified,and that backup protection method can improve the reliability of constant current branching unit.It represents a design method of constant current power supply loop node laying scheme which satisfies the system reliability requirement.

关 键 词：恒流分支供电 蒙特卡罗仿真 缆系水下网络 

分 类 号：TN915.02[电子电信—通信与信息系统]