Multi-objective fault reconfiguration plan of power network considering soft open point

Under the premise of renewable energy access to power network, the reconfiguration plan of power network with soft open point (SOP) after fault is studied, and the fault reconfiguration strategy of power network considering SOP is proposed. Firstly, the SOP model is constructed. Then, considering the degree of load recovery, voltage deviation and network load imbalance degree, a multi-objective power network fault reconfiguration model considering SOP is established under the condition of renewable energy access. Then, for the three-objective optimization reconfiguration problem, an improved normalized normal constraint (NNC) method is used to solve the complete Pareto frontier to obtain a compromised optimal solution. Finally, taking the improved IEEE 33 node distribution system as an example, the analysis results show that the distribution network reconfiguration strategy considering SOP can effectively improve the ability of distribution network to restore power supply.