▍1. S变换的行波测距
说明： 在直流线路保护、故障测距等技术领域发展不够系统完善的情况，加强对直流输电线路故障测距的深入研究，提出可靠准确的直流输电线路故障测距方法，对因线路保护不能正确动作及其他原因而造成的永久性故障的清除，(In the case that the development of DC line protection, fault location and other technical fields is not perfect enough, the in-depth study on fault location of DC transmission line shall be strengthened, and reliable and accurate fault location method for DC transmission line shall be proposed to eliminate permanent faults caused by incorrect operation of line protection and other reasons)
