220kV垂直双分裂导线粘连机理仿真

Mechanism Simulation for the Causes of 220kV Vertical-Arrayed Double-Bundle Transmission Line

在试验研究的基础上利用计算机仿真技术分析220kV垂直双分裂导线粘连现象产生的原因及其预防措施。本文以故障现场调研、户外大型试验场的试验观测和计算机仿真相结合的方式,对220kV垂直双分裂输电线路粘连机理进行探索。建立了双分裂导线粘连数学模型,并基于户外大型试验场的试验结果对模型进行校正,编制了双分裂导线粘连故障模拟软件;以云南省某220kV粘连故障线路为例,根据计算机仿真结果,提出了粘连线路的改造措施,验证了数学模型和计算方法的有效性。建立在理论分析和户外试验基础上的计算机仿真,有助于深入探索导线粘连机理,为输电线路设计和故障线路改造提供技术支持。

The causes and disposal of 220kV vertical-arrayed double-bundle transmission line adhesion are analyzed on the basis of large-scaled outdoor experiment by computer simulation technology. This paper analyses the mechanism of double-bundle transmission line adhesion with field experiment, the results of large-scaled outdoor experiment and computer simulation technology. First simulation model for transmission line adhesion is built, then revise the model with the results of field experiment and fault simulation software is programmed finally. Take an adhered fault line in Yunnan Province for example, reconstruction measures are pointed out accordding to simulation results, which show that the mathematic models are efficient. Computer simulation technology based on theoretical analysis and field experiment contributes to the exploring of the mechanism of transmission line adhesion, transmission line design and disposal of fault line.