Analysis of Load Restoration Capacity Considering Transient Frequency Constraints

In the process of power system recovery, it is necessary to determine the load recovery capability of the power supply. The research on load recovery capability of conventional power supply is usually based on steady-state frequency constraints. On this basis, this paper studies the load recovery capability of new energy power supply and its networking with conventional power supply, and adds transient frequency constraints. Firstly, based on the active-frequency control mode of new energy power supply, the order reduction of new energy power supply related modules is carried out. Secondly, the system frequency response model (SFR) of single new energy power supply and multi-type power supply network is established. Finally, a simulation model is built in matlab/simulink to analyze the load recovery ability of single power supply and power supply network in different scenarios.