基于场-路耦合的干式空心电抗器稳态电磁场及电动力分析

干式空心电抗器具有线性度好、维护方便、难燃、无污染等显著优点,是一种广泛应用于远距离输电线路的无功补偿装置,它的运行状况直接影响着电网输电质量。以干式空心串联电抗器为研究对象,利用有限元分析软件建立了场-路耦合分析模型。通过稳态求解对电抗器匝间的磁场、电场以及内部所受电动力的分布进行分析研究,给出了干式空心电抗器内部磁场、电场以及所受电动力的分布规律。所做工作为电抗器的优化设计以及绝缘材料的合理选择提供了良好的参考依据。

Steady-state electromagnetic field and electrodynamic analysis of dry-type air-core reactor based on field-circuit coupling

Dry-type air-core reactor has the obvious advantages of good linearity, convenient maintenance, non-flammability and non-pollution. It is a reactive power compensation device widely used in long-distance transmission lines. Its operation directly affects the transmission quality of power grid. In this paper, the field-circuit coupling analysis model of dry-type air-core series reactor is established by using finite element analysis software. The distribution of magnetic field, electric field and internal electrodynamic force between turns of the reactor is analyzed and studied by steady-state solution. The distribution law of internal magnetic field, electric field and internal electrodynamic force of dry-type air-core reactor is given. The work in this paper provides a good reference for the optimal design of reactor and the reasonable selection of insulation materials. This work is supported by Key Research and Development Guide Program of Liaoning Province in 2018 (No. 2018020082-201).