An Optimalized Power System Stability Control Structure Based on Breaker Failure Protection as Backup

In the process of stability controlling such as load shedding, if breaker failure occurred, current solutions cannot resection enough load to balance the generation and consumption to keep frequency and voltage stability. The same question also exists in other control processes such as out-step splitting, etc. In this paper, the authors analyzed the potential measures available in the field substation and discussed the feasibility of using breaker failure protection as the backup solution to handle the problems. Based on the analysis, the author put forward an optimized power system stability control structure and explained its availability, feasibility, and merits. Besides, the authors researched the logic of breaker failure protection, and come up with a method to prevent the breaker failure protection from malfunctioning. The simulation proved the correction of the authors' views.