Microgrid Collaborative Control Method Based on Augmented Reality 3D Scene Reconstruction of Substation Operation Inspection

Due to the influence of impedance characteristics of micro grid lines and other factors, traditional droop control is difficult to accurately distribute reactive power according to droop gain, in order to improve the accuracy of reactive power sharing, the author proposes a distributed hierarchical cooperative control method. Based on communication technology and hierarchical control theory, a distributed hierarchical control architecture is established, including a primary control layer and a distributed secondary control layer. In the primary control layer, the traditional droop control virtual impedance control and PR voltage and current control are used to achieve power distribution. In the secondary control, the distributed consistency algorithm is used to construct the state observer, obtain the global average value, and adjust the deviation of voltage and reactive power in global consistency, in order to realize the voltage static error free control and the accurate distribution of reactive power, at the same time, it can reduce the requirements of the system for communication bandwidth, so that the system has higher reliability and scalability. Through the MATLAB/Simulink simulation experiment platform, the micro grid droop control system and the new virtual synchronous generator control system are built for simulation and comparison of control strategies, it is verified that the virtual synchronous generator has higher stability and security than droop control technology.