Reliability Analysis of Power Grid Security and Stability Control System under Dual Carbon Background

Abstract

Under the "dual-carbon" target vision, the construction of a new power system with a gradually increasing proportion of new energy has become a major direction. In the process of the continuous development of the power system, the new energy has the characteristics of large volatility and strong randomness, so it is necessary to constantly improve the regulation capacity of the power grid to ensure the stability of the power system. In this paper, the hardware reliability of the security and stability control system is detected by quantitative calculation. Based on two different operation modes of "one out of two" and "two out of two", we use Markov state-space method to calculate the rejection probability respectively, with the ratio of the device repair rate and the fault rate being the parameters. The calculation results are used to analyze the stability of the system, which guarantees the stable operation of the power grid.