弧光高阻故障电流非线性畸变可控模型（DIST-C）在PSCAD中的实现。 原理见论文：M. Wei, W. Liu, F. Shi, Z. Jin, H. Zhang and W. Chen, "Distortion-Controllable Arc Modelling for High Impedance Arc Fault at the Distribution Network," in IEEE Transactions on Power Delivery, doi: 10.1109/TPWRD.2020.2981376.