This study focuses on the impact of new energy grid connection on the transient stability of power systems and their control strategies. The analysis shows that the fluctuation

randomness and limited scheduleability of new energy power generation significantly affect the transient stability of the power system

resulting in increased power imbalance and increased frequency fluctuations. Through the establishment of analysis models and simulation verification

control strategies such as optimizing the output prediction of new energy

adjusting the operation mode of the system

deploying power electronic devices and strengthening the scheduling management of power grid are proposed. After the implementation of these strategies

the transient stability of the system has been significantly improved

providing theoretical basis and practical guidance for the safe and stable operation of new energy power systems

which is of great significance for promoting the efficient application of new energy and the sustainable development of power systems.