提出了一种将“场”和“路”相结合的方法用于计算 220 kV MOA 带电测量相间干扰问题。并运用 ANSYS Maxwell 和 EMTP 软件联合仿真计算加以验证,为 MOA 在线监测减小相间干扰提供了理论依据和切实可行的办法。仿真 计算结果显示,A 相和 C 相受干扰影响比较明显,而 B 相幅值和相位变化相对较小。
Abstract
A method combined with " field" and " circuit" is proposed to calculate the interphase interference of 220 kV metal oxide arrester. It is verified by the joint simulation with ANSYS Maxwell and EMTP,which provides a theoretical basis and a practical way to reduce interference effects. The simulation computation results show that the interference effect on phase A and phase C is more obvious,however the amplitude and phase changes of phase B are relatively small.