Electric grounding 18 Electric power transmission networks 5 DC networks 4 Bipolar DC network 3 Constant power load 3 Convergence evaluation 3 DC grid 3 Derivative-free 3 Electric load flow 3 Iterative methods 3 Monopolar 3 Monopolar and bipolar constant power load 3 Power-flow solution 3 Triangular-based formulation 3 bipolar DC networks 3 convergence evaluation 3 monopolar and bipolar constant power loads 3 power flow solution 3 triangular-based formulation 3 Fault ride-through 2 Grounding systems 2 Lightning 2 Partial discharges 2 Phase-to-ground faults 2 Single phase grounding faults 2 Soils 2 Transients 2 Wind turbines 2 500 kV transmission lines 1 ANFIS 1