Evaluation of Inertia Levels in Provincial Power Grids with High Proportions of Renewable Energy

• DOI: 10.1145/3640115.3640236
• Publication Date: 2024-03-26T16:10:58Z
• Authors: Yang Wu; Xu Zhao; Yigong Xie; Jian Zhang; Xinyu Meng; Wenxin Kou; Yuguo Chen
• Keywords: Power grid

Renewable energy sources, including wind farms and solar power plants, are gradually replacing traditional synchronous generators (SGs) as part of the effort to achieve net-zero carbon emissions. However, this transition also leads a reduction in system's inertia, especially significant proportion renewable is integrated into grid. Over time, operators provincial-level grids have faced challenge assessing monitoring inertia levels within system, which crucial for guiding planning new installations scheduling unit operations. In article, methodology grid calculation proposed based on known events, under premise clarifying meaning level its relationship with system frequency security stability. we focus two provincial where hydropower thermal main generation structures respectively analysis predict grids' future by considering capacity expansion plans, current status, changes output. Based analysis, various methods enhance such virtual phase adjustment, explored, recommendations improving grid's provided.