Microgrid operation control strategy based on improved reactive power sag control

This paper focuses on the outstanding issue of whether distributed power supplies can effectively distribute reactive loads, specifically by incorporating the corresponding sag characteristics of load Q/V, and effectively incorporating the voltage amplitude feedback and transmission line voltage drop method for distributed power supplies on the basis of traditional reactive sag control, so as to effectively track the voltage change at the access point, which can effectively improve the output voltage amplitude inequality, and ensure that all distributed power supplies can output the same voltage amplitude when the microgrid system reaches the stable operation state. This ensures that all distributed power supplies can output the same voltage amplitude when the microgrid system reaches a stable operating state, thus ensuring that the distributed power supplies can distribute the reactive load equally and ensuring the stability and reliability of the microgrid system. Finally, the improved reactive power sag control is simulated on the TR-LAB platform and compared with the pre-improved microgrid operation characteristics to verify the feasibility and effectiveness of the improved sag control method proposed in this paper, i.e. whether it can improve and optimise the steady-state performance of the microgrid system.