LI Jianhua, LI Chen’gao, LU Jianyu, et al. Research on Statistical Characteristics of Renewable Energy in East China Power Grid Based on Output Features[J]. 2025, 53(7): 53-60.
LI Jianhua, LI Chen’gao, LU Jianyu, et al. Research on Statistical Characteristics of Renewable Energy in East China Power Grid Based on Output Features[J]. 2025, 53(7): 53-60. DOI: 10.20204/j.sp.2025.07007.
Research on Statistical Characteristics of Renewable Energy in East China Power Grid Based on Output Features
The rapid development of renewable energy has accelerated the construction of the new power system. However, characteristics such as the strong volatility and high randomness of renewable energy limit the application of smart grids. Given that the East China Power Grid exhibits large power-receiving, high-density, and strongly coupled characteristics, it serves as an example for analyzing the resource characteristics of the renewable energy in this region using statistical methods. First, from the perspective of supply-demand balance, the grid operation under the different levels of renewable energy participation is explored, quantitatively analyzing its impact on power supply reliability. Second, a refined multi-scale model based on output features is proposed. This model integrates the output simultaneity rate into hourly and minute-level time scales, revealing the renewable energy output levels across different times and spaces. Third, a three-level resource architecture model(grid-province-station) is established. Based on resource transition states, the frequency distribution characteristics and spatiotemporal correlations are analyzed, thereby identifying the continuity trends of renewable energy power generation. The research findings can provide an important basis for power grid operation and planning.
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