Smart Grid - The Present and Future of Smart Physical Protection: A Review

Smart grid is regarded as the next generation power grid, which provides bi-directional flow of electricity and information, with improving the power grid reliability, security, and efficiency of electrical system from generation to transmission and to distribution. As smart grid continues to develop, realization of a reliable and stable system is necessary. This article reviews on the current state-of-art technology in physical protection. This article also focuses on the system reliability analysis and failure in protection mechanism. In addition, the challenges of both the topics are also presented along with the suggested solution.