极端恶劣天气可能会导致换流站站内电源与站外备用交流电源全失。对站用电接线提出增加柴油发电机接口作为应急电源的方案。同时提出了站用电布置优化方案，将10 kV高压开关柜与低端阀组动力中心合并布置，形成全站的动力中心，可节省大量高压电缆。

A diesel generator was added to the auxiliary power system as emergency power in order to prevent the bad influence of extremely heavy weather, which may cause the blackout accident of station power supply and emergency power supply in converter station. An optimization scheme was proposed for auxiliary power layout that arranged a 10 kV HV switch cabinet beside the low-end valve power center (PC). This scheme can form the power center of the whole converter station and save a large number of HV cables.