Guest Editorial Special Section on Frontiers of Power System Protection

The papers in this special section was conceived with an aim of stimulating forward-looking and transformative ideas and methods that can lead to significant advances in power system protection. Protection is one of the fastest operating functions of a power system, and critical to safety of equipment, and stability of the system. Designed and refined through more than a century of experience, insight, and technological advances, design and implementation of protection has kept power systems exceptionally reliable, considering the fact that the power grid is the largest nonlinear dynamic system in the world, a large part of which is continuously exposed to weather. In recent times, advances in sensing, communication, and computing have potential to refine, or even redefine the conception and implementation of power system protection.