摘要
在钢箱梁悬吊桥上敷设500 kV电缆,桥梁的空间范围内将产生交变的工频磁场,有可能对桥梁上的行人和电气设备带来不利影响。分析了500 kV电缆空间工频磁场的计算方法,利用MATLAB建立了桥梁空间范围内工频磁场分布的模型。通过分析和比较,研究了电缆敷设高度、电缆相间距离、电缆敷设方式等因素对空间工频磁场的影响。研究结论对在桥梁上敷设超高压电缆具有一定的指导意义。
Laying 500 kV electric cables on steel-box suspension bridge will produce alternative power frequency magnetic field in the bridge space,which may have adverse effects on pedestrian and electric equipments on the bridge.The method for calculating the power frequency magnetic field of 500 kV electric cables was analyzed,and the model of the power frequency magnetic field was built in MATLAB.By the analysis and comparison,the influences of the factors including laying height,distance between phases,laying method,etc.,on the power frequency magnetic field in the space were studied.These analysis results were available for the reference in the design of the extra-high voltage cables laid on steel-box suspension bridge.
出处
《华东电力》
北大核心
2010年第6期881-887,共7页
East China Electric Power
关键词
电缆
工频磁场
超高压
钢箱梁悬吊桥
electric cable
power frequency magnetic field
extra-high voltage
steel-box suspension bridge
作者简介
张愉（1984－），男，硕士研究生，研究方向为电力电子与电力传动。
