Research on energy flexibility demand analysis and evaluation method of power systems with a high proportion of new energy

Abstract

With the increase of the scale of highly uncertain power supply in the system, the system needs more and more energy flexibility. Existing studies focus more on short-term energy demand volatility changes and lack quantitative means to analyze the system’s demand for energy flexibility at different time scales. Aiming at the above problems, this paper proposes an energy flexibility demand analysis and evaluation method for power systems with a high proportion of new energy. It constructs an energy flexibility demand evaluation index system at different time scales. Combined with the analysis of domestic provincial cases, the results verify the effectiveness of the proposed method.