海上油田孤岛电网变压器励磁涌流抑制技术的研究及应用

Research and application of excitation inrush current suppression technology for transformer inisolated power grid of offshore oil field

变压器合闸时产生的励磁涌流影响着海上石油孤岛电网电力系统的安全稳定运行,其引发的保护误动作.开关跳闸和电网冲击等一直是电气人员很关注的问题。分析了励磁涌流产生的原因,结合海上油田孤岛电网的特性,提出抑制变压器励磁涌流的方案,并在实践中得到了很好的应用。

The inrush current generated when the transformer is closed affects the safe and stable operation of the power system of offshore oil island power grid. The causes of excitation inrush current are analyzed, combined with the characteristics of isolated power grid in offshore oilfields, a scheme to restrain transformer excitation inrush current is put forward, and has been well applied in practice.