TY - JOUR A2 - Jain, Deepak Kumar AU - Chen, Haoran AU - Lin, Xin AU - Li, Guanhua AU - Xu, Jianyuan AU - Li, Hui AU - Wang, Shuai PY - 2021 DA - 2021/11/05 TI - Experimental Research and Numerical Simulation of Single Soil-Arc-Grounding-Fault in Distribution Networks SP - 1875068 VL - 2021 AB - Among the distribution network faults, single-phase grounding faults have the greatest probability. The faults are often accompanied by arcs in the grounding point soil. This type of fault current has a small amplitude and seldom can obtain field record data. A soil arc grounding fault is tested on a realistic-distribution-network-experimental-platform (RDNEP), and it is concluded that the soil-arc-grounding-fault (SAGF) has three main characteristics: hysteresis, nonlinearity, and asymmetry. By comparing with the characteristics of common arc models, it is pointed out that common arc models cannot accurately fit the characteristics of SAGF. This paper proposes and establishes a double exponential function arc model. Through the comparison of simulation waveforms with experimental data, it is verified that the numerical simulation method proposed in this paper can simulate the development process of SAGF more accurately. Furthermore, the equivalence of RDNEP is verified on the real distribution network system (RDNS). On this basis, analyzed the arc characteristic changes of different SAGF development cycles. Finally, by studying the applicability of the proposed model in simulating ground faults in grass and gravel roads, it is verified that the model proposed in this paper has a strong generalization capability. The research has laid a theoretical foundation for a detection algorithm that is based on the characteristics of SAGF. SN - 1530-8669 UR - https://doi.org/10.1155/2021/1875068 DO - 10.1155/2021/1875068 JF - Wireless Communications and Mobile Computing PB - Hindawi KW - ER -