大规模分布式新能源接入对省级电网稳定性影响  

Impact of Large Scale Distributed New Energy Access on Provincial Power Grid Stability

作　　者：李佳蔚 张冠宇 LI Jiawei;ZHANG Guanyu(School of Electrical Engineering and Artificial Intelligence,Xiamen University Malaysia,Selangor Darul Ehsan 43900,Malaysia;State Grid Henan Electric Power Research Institute,Zhengzhou 450000,China)

机构地区：[1]厦门大学马来西亚分校电气工程与人工智能学院,雪兰莪州雪邦,43900 [2]国网河南省电力公司电力科学研究院,河南郑州450000

出　　处：《中国电力》2024年第6期174-180,共7页Electric Power

基　　金：国家自然科学基金资助项目(52277082)。

摘　　要：基于不同种类分布式新能源的暂态特性,建立各种新能源的典型模型,聚合为考虑分布式新能源的有源综合负荷模型,用于对工程实际省级电网的安全稳定分析。所提方法能有效反映新能源的低电压穿越、切机等特性对省级电网稳定性的复杂影响,其中火电机组直接退出分布式新能源消纳运行会导致大电网稳定性下降,当火电机组处于调峰状态时,对大电网暂态稳定性影响较小。Based on the transient characteristics of different types of distributed new energy,typical models are established and aggregated into active comprehensive load models,which can be used for safety and stability analysis of provincial power grids.The results show that the proposed method can effectively reflect the complex impact of the low voltage ride through and wave sealing characteristics of new energy on the stability of provincial power grids.Among them,the direct withdrawal of thermal power units from distributed new energy consumption operation will lead to a decrease in the stability of the power grid.When thermal power units are in peak shaving state,the impact on the transient stability of the power grid is relatively small.

关 键 词：分布式新能源 有源综合负荷模型 暂态稳定性分析 

分 类 号：TM712[电气工程—电力系统及自动化]