东海缆系海底观测试验网电力系统设计与分析  

Power system design and analysis for the East China Sea experimental cabled seafloor observatory network

作　　者：吕枫[1,2] 周怀阳[1] 岳继光[2] 彭晓彤[1] 何斌[2] 

机构地区：[1]同济大学海洋与地球科学学院,上海200092 [2]同济大学电子与信息工程学院,上海201804

出　　处：《仪器仪表学报》2014年第4期730-737,共8页Chinese Journal of Scientific Instrument

基　　金：上海市科委(10DZ1210501);国家863计划(2012AA09A401)资助项目

摘　　要：为了持续提供充裕的电能给大量原位科学仪器,设计了东海缆系海底观测试验网电力系统,建立了其核心电力元件的数学模型,并分析了其静态和暂态稳定性。采用小扰动法分析了系统静态稳定性,获得了系统静态稳定判据,证明了切负荷可提高系统静态稳定性。采用相平面法和Saber仿真分析了系统暂态稳定性,发现改变核心电力元件的特性或参数,如减小海底负荷、增大海缆等效电阻、减小海缆等效电容或增加岸基远供设备输出电压的调节时间等方法,均可提高系统暂态稳定性。研制的试验网电力系统长期运行稳定可靠,证明了系统设计合理可行。A power system for the East China Sea experimental cabled seafloor observatory network was designed to provide abundant electric power to a large amount of in-situ science instruments persistently.The mathematic models of the critical power components are built,and then the steady and transient state stabilities of the undersea power system are analyzed.The steady stability is analyzed using the small-signal disturbance approach.The steady stability criterion is generated,and it is proved that load shedding can increase the steady state stability margin.The transient state stability is analyzed using the phase plane approach and the Saber simulator.It is discovered that the transient state stability margin can be increased by changing the characteristics or parameters of the critical power components,e.g.,decreasing undersea loads,increasing cable equivalent resistance,decreasing cable equivalent capacitance,or increasing the settling time of the output voltage of the shore power feeding equipment.The developed undersea power system has been working stably and reliably for a long time,which proves the reasonableness and feasibility of the design.

关 键 词：缆系海底观测网 海底电力系统 静态稳定性 暂态稳定性 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置] TH76[自动化与计算机技术—控制科学与工程]