Flexible Transmission Network Expansion Planning Considering Multi-path Deep Peak Regulation and Network Structure Regulation under Uncertainty

Carbon reduction encounters insufficient power system regulation, flexible planning is vital to deal with uncertainties in enhancing carbon neutral, which needs to consider various flexible resources. In this paper, the multipath deep peak regulation as a generator side flexible resource and network structure regulation as a network side flexible resource is proposed to enhance the power system flexibility. A novel model considering multipath deep peak regulation and network structure regulation under uncertainty is proposed. Static and transient security constraints are satisfied in the model. The proposed method is verified by a real-world test system, the comparison of involving deep peak regulation, the flexible index and the security constraints are presented. The simulation results demonstrate that the method can effectively provide the optimal results.