Random Expected Value Power Supply Reliability Evaluation of Typical Urban Medium-Voltage Distribution Network Considering the Impact of Integrated Energy Supply

In the context of energy internet development, the application of the park-level integrated energy system promotes the energy utilization efficiency, and at the same time promotes the research necessity of the reliability assessment of urban medium-voltage distribution network considering its influence. This paper first constructs a configuration model for economic operation optimization of the integrated energy system, and then extracts the typical supply and demand combination boundary on which reliability assessment depends based on the random expected value model, and finally uses the simulation calculation of 11 typical grid combinations under normal mode, N-1 and N-2 scenarios (combined with three main network connection modes and four sub-main network connection modes) to explore the reliability level of medium voltage network considering the impact of integrated energy output. This paper aims at promoting the application of integrated energy technology in cities and providing useful reference for power grid planning and transformation.