Investigation into static stability in power systems integrated with renewable energy sources

Abstract Under the carbon peaking and carbon neutrality goals, it is imperative to vigorously promote the development of non-fossil fuel power generation and enhance the penetration rate of renewable energy sources. However, the output from renewable energy generation, particularly photovoltaic and wind power, exhibits randomness, intermittency, and volatility, which can significantly impact the static stability of the power system. This paper primarily investigates the impact of uncertainties in new energy output, load fluctuations, and fault occurrences on the static stability of power systems. It identifies key parameters that influence these uncertainties and establishes a comprehensive evaluation framework based on the severity of their effects. Ultimately, the IEEE14 bus system is utilized as a case study to validate the proposed methodology and identify the system’s vulnerable points.