Research of network model for islanded grid

In the situation of partition grid splitting, frequency greatly deviates from the rated value. The impact of correcting the fundamental frequency parameters with the changing frequency during the electromechanical transient simulation is analyzed. For engineering application needs, a possible program that fundamental frequency parameters are corrected discretely to obtain better results is proposed, and the feasibility of the program is verified by a test system simulation. Finally, result comparison of correcting the fundamental frequency parameters or not is done by HuaDong partition grid splitting simulation.