基于APDL的750kV变电站内分裂导线结构优化

Structural Optimization of Split Conductors in 750 kV Substation Based on APDL

为了满足750 kV变电站的建设发展需要,改善变电站内导线表面电场分布,减少导体电晕放电现象已成为变电站建设运行的重要因素。利用有限元法FEM建立了实际工程中750 kV变电站内导线的计算模型,结合APDL语言与有限元仿真软件ANSYS中的Design Opt模块,对750 kV变电站内4分裂导线LGKK-600的分裂形式进行优化设计。通过寻优计算,确定了4分裂导线的最优结构,导线表面最大电场强度值较优化前下降了20.45%,为750 kV变电站设计和导线选型提供了参考依据。

To meet the development requirement of 750 kV substations, electric field optimization and reduction of coro- na discharge have become critical. In this paper, the conductors in a real 750 kV substation are modelled by FEM. Us- ing the APDL language and the Designopt module in the finite element software ANSYS, the structure of four-split LG- KK-600 conductor is optimized. With structural optimization, the best structure is determined and the results show that the maximum electric field strength of the four-split conductor surface is reduced by 20.45%. This paper provides refer- ence for the design and conductor selection of 750 kV substation.