Abstract:
With the large-scale integration of new energy into the grid, the inherent fault and low support characteristics of new energy pose a risk of misoperation or refusal of traditional protective devices. The article proposes a wide area adaptive protection method for new energy access, based on the establishment of a "layered and distributed" architecture. It comprehensively utilizes multiple information sources for dynamic judgment and captures the characteristics of fault signals, and uses adaptive tuning and regional collaborative judgment to adjust the protection settings and coordinate the working methods in real time, aiming to ensure the safe operation of the new power system.