通信电源技术
通信電源技術
통신전원기술
TELECOM POWER TECHNOLOGIES
2012年
4期
68-69,72
,共3页
戴超%刘爱兵%李兴俭%王中龙%于吉刚
戴超%劉愛兵%李興儉%王中龍%于吉剛
대초%류애병%리흥검%왕중룡%우길강
导体温度%有限元%动态载流量%分布式光纤测温
導體溫度%有限元%動態載流量%分佈式光纖測溫
도체온도%유한원%동태재류량%분포식광섬측온
conductor temperature%finite element%dynamic current carrying capacity%DTS
文中以电缆温度在线监测系统为基础,结合有限元原理,构建电缆的有限元温度场模型,实时对电缆导体温度和载流量进行计算和分析,设计了基于分布式光纤测温的电缆温度及载流量在线监测系统,并通过对10 kV电缆的数据实测,验证该系统的实时性和准确性。该系统为评估电缆载流量,合理分配电力电缆负荷、保障电网的可靠运行提供科学依据。
文中以電纜溫度在線鑑測繫統為基礎,結閤有限元原理,構建電纜的有限元溫度場模型,實時對電纜導體溫度和載流量進行計算和分析,設計瞭基于分佈式光纖測溫的電纜溫度及載流量在線鑑測繫統,併通過對10 kV電纜的數據實測,驗證該繫統的實時性和準確性。該繫統為評估電纜載流量,閤理分配電力電纜負荷、保障電網的可靠運行提供科學依據。
문중이전람온도재선감측계통위기출,결합유한원원리,구건전람적유한원온도장모형,실시대전람도체온도화재류량진행계산화분석,설계료기우분포식광섬측온적전람온도급재류량재선감측계통,병통과대10 kV전람적수거실측,험증해계통적실시성화준학성。해계통위평고전람재류량,합리분배전력전람부하、보장전망적가고운행제공과학의거。
In the paper, the conductor temperature and dynamic current carrying capacity of power cable is analyzed and calculated with finite element temperature field models. Monitoring system of the conductor temperature and dynamic current carrying capacity is designed and the accuracy is validated by the test of 10 kV cable. It provide scientific basis for estimating cable current carrying capacity, allocating current of cable and keeping running the power grid.
