Research on the optimal ratio allocation method for hybrid systems of following/forming grid type

The multi - inverter hybrid control mode has been proven effective in enhancing system stability under weak grid conditions. However, the proportion of grid - forming units in new energy field stations remains undetermined. This paper aims to explore the optimal proportion for improved stability. First, a transient model of the grid - following/grid - forming hybrid system is constructed to analyze relevant influence mechanisms. Then, the relationship between grid - forming capacity, power command and control parameters is explained, and indexes are established. A transient stability improvement oriented following/forming ratio configuration method is proposed. Finally, a simulation model of the hybrid hybrid system is constructed based on MATLAB/Simulink platform to verify the effectiveness of the proposed configuration.