基于有限元分析的开关柜内部电场的改善

Improvement of Internal Electric Field in Switchgear Based on Finite Element Analysis

绝缘问题是电力设备稳定、可靠运行的重要影响因素之一,也是高压电器设备中的薄弱环节。高压开关柜故障中很大一部分故障就是由于绝缘破坏而造成的。因此,必须提高绝缘设备的绝缘性能,保证高压开关柜在配电系统中的安全运行,且有较小的安装空间。在计算机模拟电场分布的求解中,有限元方法剖分简便易行、可适用于多种介质且具有较高的计算效率,已经成为电磁场问题求解的主要方法之一。

Insulation is one of the important factors affecting the stable and reliable operation of power equipment,and insulation is also a weak link in high-voltage electrical equipment.A large part of the failure of high-voltage switchgear is caused by insulation damage.Therefore,it is necessary to improve the insulation performance of insulation equipment,ensure the high voltage switch cabinet in the distribution system safe operation,and there is a small space for installation.The finite element method has become one of the main methods for solving electromagnetic field problems because it is easy to divide,can be applied to a variety of media,and has high computational efficiency.